SGP/MFRSR/E6 - Possible date/time corruption

Incorrect capacitors in the loggerboard during this time
resulted in corruption of the raw data.  Date and time 
information as well as logger and head ID were incorrectly
reported for some records.  
   
Users of these data should be alert for unexplained
discontinuties in the .a0, and .b1 level data set.

• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• Hemispheric Irradiance, MFRSR(hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)

• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Hemispheric Broadband Irradiance(hemisp_broadband_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Hemispheric Irradiance, MFRSR(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)

SGP/MWR/C1 - Intermittent Negative Sky Brightness Temperatures

Several related and recurring problems with the SGP MWRs have been
reported dating back to 1999.  These problems were due to the
occurrence of blackbody signals (in counts) that were half of those
expected. The symptoms included noisy data (especially at Purcell),
spikes in the data (especially at Vici), negative brightness
temperatures, and apparent loss of serial communication between the
computer and the radiometer, which results in a self-termination of the
MWR program (especially at the CF).

Because these all initially appeared to be hardware-related problems,
the instrument mentor and SGP site operations personnel (1) repeatedly
cleaned and replaced the fiber optic comm. components, (2) swapped
radiometers, (3) sent radiometers back to Radiometrics for evaluation
(which has not revealed any instrument problems), and (4) reconfigured
the computer's operating system.  Despite several attempts to isolate
and correct it, the problem persisted.

It became apparent that some component of the Windows98 configuration
conflicted with the DOS-based MWR program or affected the serial port
or the contents of the serial port buffer. This problem was finally
corrected by upgrading the MWR software with a new Windows-compatible
program.

• Averaged total liquid water along LOS path(liq)
• Sky brightness temperature at 23.8 GHz(tbsky23)
• MWR column precipitable water vapor(vap)
• Sky brightness temperature at 31.4 GHz(tbsky31)

• Sky brightness temperature at 31.4 GHz(tbsky31)
• Averaged total liquid water along LOS path(liq)
• MWR column precipitable water vapor(vap)
• Sky brightness temperature at 23.8 GHz(tbsky23)

• Sky brightness temperature at 23.8 GHz(tbsky23)
• Averaged total liquid water along LOS path(liq)
• MWR column precipitable water vapor(vap)
• Sky brightness temperature at 31.4 GHz(tbsky31)

• MWR column precipitable water vapor(vap)
• Sky brightness temperature at 23.8 GHz(tbsky23)
• Sky brightness temperature at 31.4 GHz(tbsky31)
• Averaged total liquid water along LOS path(liq)

SGP/SIRS/E21 - False signal

During clear-sky conditions, downwelling shortwave values spike downward approximately 50 
to 200 W/m^2 around 22:15 UTC for about 15 minutes. This problem occurs at about the same 
time for the same duration each day during the indicated period of the year.  This 
effect is due to a shadow from the Rotating Bird Deterrent (RBD) installed earlier in the year 
to prevent extensive bird droppings at the site.  The RBD is installed at such a 
location that it will partially shade the downwelling shortwave PSP from 19 October to 23 
February of the year.

• null(Raw data stream - documentation not supported)

• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)

• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
  Deviation(down_short_hemisp_std)

SGP/SIRS/E21 - Shadowband Misalignment

The NIP reported values close to zero and downwelling shortwave global and diffuse were 
equivalent due to tracker failure.  

Maintenance replaced tracker 2/27, but couldn't replace instruments until 03/02 2000 GMT 
due to bird poop contamination.

• null(Raw data stream - documentation not supported)

• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)
• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)

• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)

SGP/SIRS/E27 - incorrect tracking

The solar tracker at E27 was not functioning properly.  The problem affected tracker 
mounted instruments: downwelling diffuse 8-48 and direct normal pyrheliometer NIP.  

After tracker adjustment on 4/14/2004 1700GMT the tracker stopped tracking properly during 
afternoon hours.  Attempts to correct tracker operation throughout the failure period 
resulted in variations on incorrect tracker operation.  No replacement tracker was available.

After adjustment on 9/15/2004 the tracker problem was resolved.  It is unclear what, other 
than typical az and zen tracker software changes by field techs, corrected the problem.  
This problem period corresponds to the first time range specified (4/14 to 9/15). 

On 10/27/2004 a replacement tracker was installed at E27.  Technical difficulties kept 
tracker out of service until 11/05/2004. The replacement tracker at E27 was put into serice 
by the field techs on 11/05/2004 1830GMT.  The tracker has been tracking correctly since 
this time.  This problem period corresponds to the second time range (10/27 to 11/05).

• null(Raw data stream - documentation not supported)

• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)

• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)
• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)

TWP/SMET/C1 - Poor Performing Sensor

On 4/23/2004 condensation was found inside the target area of the ORG lens. A spare was 
sent and installed but did not solve the problem of high background voltage values causing 
rainrate values to be recorded during no rainfall.  Values range anywhere from 0.06 to 
0.12 mm/hr.  

A new Optical Rain Gage was installed on 01/19/2005 @ 13:30 GMT alleviating the high 
background voltage values that lead to consistent rainfall rates of around 0.11 to 0.15 mm/hr 
on a consistent basis.  

The formula used to calculate rainfall rates from the new Optical Rain Gage is:  RR 
(mm/hr) = 25(V^1.87) - 0.15.

Older model formula = 20(V^2) - 0.05

The two formulas result in comparable data.

• Precipitation mean(precip_mean)
• Precipitation maximum(precip_max)
• Precipitation standard deviation(precip_sd)
• precipitation minimum(precip_min)

SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients

During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with 
incorrect calibration coefficients for the shortwave instruments.  The affected measurements 
(instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal 
(NIP) and downwelling shortwave (PSP)

Recalculate irradiances by determining original mV signal and reapplying the correct 
calibration coefficients.  For SGP/SIRS/E10 and each one minute irradiance value perform the 
following calculations by instrument:
DD(corrected) = (DD/107.24)*114.63
US(corrected) = (US/113.19)*117.46
NIP(corrected)= (NIP/120.17)*119.26
DS(corrected) = (DS/118.46)*122.78

• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
  Deviation(up_short_hemisp_std)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
  Deviation(down_short_hemisp_std)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)

• null(Raw data stream - documentation not supported)

SGP/SIRS/C1/E13 - Incorrect calibration coefficients

After the DIR changeout on 8/27, the DLH measurements at the central facility vary 
significantly between pyrgeometers by as much as 65 Wm^(-2).  It was discovered that the two 
downwelling pyrgeometers destined for C1 and E13 may have been swapped during installation.  
The instrument mentor is unsure of applied calibration coefficients during this DQR's 
time period.  Backing out new downwelling longwave irradiances would be difficult in this 
case. Fortunately, the problem period is less than a fortnight.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• null(Raw data stream - documentation not supported)

• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)

• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)
• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)

• null(Raw data stream - documentation not supported)

SGP/SIRS/E10 - tracker failure

During the night of 11/05-06 2004 the tracker failed at this location. During CM on 12/01, 
power cycling returned the tracker to service. However, tracker was not properly 
tracking in the AM. Tracker failed again sometime near 01/01/2005.  CM on reloaded the tracker 
program and realigned the tracker on 01/26/2005 1600GMT.  It has been working correctly 
since this time.

• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)

• null(Raw data stream - documentation not supported)

• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)
• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)

SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients

It appears the datalogger program at SIRS/C1 was automatically updated, unbeknownst to 
anyone, on 9/27/20041423GMT with an older program with incorrect UIR and DIR calibration 
coefficients. The correct and incorrect cal coeffs for the UIR and DIR pyrgeometers during 
this DQR period were:
  incorrectUIR   correctUIR
K0  -12.84       -13.00
K1  .2250        0.2573
K2  1.024        1.024
K3  -1.9280      -1.8050

 incorrectDIR   correctDIR
K0  -13.15       -26.89
K1  0.2374       0.2967
K2  1.0260       1.0560
K3  -2.478       -3.3080

• Instantaneous Case Temperature(inst_up_long_case_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Dome Temperature(inst_up_long_dome_temp)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
  Deviation(up_long_hemisp_std)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• null(Raw data stream - documentation not supported)

SGP/SIRS/E22 - SWFANAL Data description error

The long name attribute for the cloud effect fields incorrectly
defines the cloud effect to be the difference between the 
clearskyfit and measured values:
   
"Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ;
   
The cloud effects are correctly calculated by subtracting the
irradiance calculated in the clear sky fit from the measured 
irradiance.
   
"Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ;
   
NOTE: this is just a documentation error.  The data are correctly
calculated.

• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)(sswfluxdn_cloudeffect)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)

• Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)(sswfluxdn_cloudeffect)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)

SGP/SIRS/C1 - SWFANAL Data description error

The long name attribute for the cloud effect fields incorrectly
defines the cloud effect to be the difference between the 
clearskyfit and measured values:

"Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ;

The cloud effects are correctly calculated by subtracting the 
irradiance calculated in the clear sky fit from the measured 
irradiance.

"Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ;

NOTE: this is just a documentation error.  The data are correctly
calculated.

• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)(sswfluxdn_cloudeffect)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)

• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)(sswfluxdn_cloudeffect)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)

SGP/SIRS/E22 - Intermittent upwelling longwave data loss

Upwelling longwave hemispheric data drops out occasionally during the afternoon hours.  
Maintenance determined that the Upwelling LW Hemispheric irradiance instrument, the PIR, 
had a failed cable affecting only the thermopile measurement of this instrument.  Cable was 
replaced 7/20/05 2000GMT.

• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)

• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
  Deviation(up_long_hemisp_std)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)

• null(Raw data stream - documentation not supported)

SGP/MWR/C1 - REPROCESS - Revised Retrieval Coefficients

IN THE BEGINNING (June 1992), the retrieval coefficients used to derive the precipitable 
water vapor (PWV) and liquid water path (LWP) from the MWR brightness temperatures were 
based on the Liebe and Layton (1987) water vapor and oxygen absorption model and the Grant 
(1957) liquid water absorption model.  

Following the SHEBA experience, revised retrievals based on the more recent Rosenkranz 
(1998) water vapor and oxygen absorption models and the Liebe (1991) liquid waer absorption 
model were developed.  The Rosenkranz water vapor absorption model resulted a 2 percent 
increase in PWV relative to the earlier Liebe and Layton model.  The Liebe liquid water 
absorption model decreased the LWP by 10% relative to the Grant model.  However, the 
increased oxygen absorption caused a 0.02-0.03 mm (20-30 g/m2) reduction in LWP, which was 
particularly significant for low LWP conditions (i.e. thin clouds encountered at SHEBA).

Recently, it has been shown (Liljegren, Boukabara, Cady-Pereira, and Clough, TGARS v. 43, 
pp 1102-1108, 2005) that the half-width of the 22 GHz water vapor line from the HITRAN 
compilation, which is 5 percent smaller than the Liebe and Dillon (1969) half-width used in 
Rosenkranz (1998), provided a better fit to the microwave brightness temperature 
measurements at 5 frequencies in the range 22-30 GHz, and yielded more accurate retrievals.  
Accordingly, revised MWR retrieval coefficients have been developed using MONORTM, which 
utilizes the HITRAN compilation for its spectroscopic parameters.  These new retrievals 
provide 3 percent less PWV and 2.6 percent greater LWP than the previous retrievals based on 
Rosenkranz (1998).

Although the MWR data will be reprocessed to apply the new monortm-based retrievals, for 
most purposes it will be sufficient to correct the data using the following factors:

PWV_MONORTM = 0.9695 * PWV_ROSENKRANZ
LWP_MONORTM = 1.026  * LWP_ROSENKRANZ

The Rosenkranz-based retrieval coefficients became active as follows (BCR 456):
SGP/C1 (Lamont)     4/16/2002, 2000
SGP/B1 (Hillsboro)  4/12/2002, 1600
SGP/B4 (Vici)       4/15/2002, 2300
SGP/B5 (Morris)     4/15/2002, 2300
SGP/B6 (Purcell)    4/16/2002, 2200
SGP/E14(Lamont)     4/16/2002, 0000
NSA/C1 (Barrow)     4/25/2002, 1900 
NSA/C2 (Atqasuk)    4/18/2002, 1700
TWP/C1 (Manus)      5/04/2002, 0200
TWP/C2 (Nauru)      4/27/2002, 0600
TWP/C3 (Darwin)     inception

The MONORTM-based retrieval coefficients became active as follows (BCR 984):

SGP/C1 (Lamont)     6/28/2005, 2300
SGP/B1 (Hillsboro)  6/24/2005, 2100
SGP/B4 (Vici)       6/24/2005, 2100
SGP/B5 (Morris)     6/24/2005, 2100
SGP/B6 (Purcell)    6/24/2005, 1942
SGP/E14(Lamont)     6/28/2005, 2300
NSA/C1 (Barrow)     6/29/2005, 0000 
NSA/C2 (Atqasuk)    6/29/2005, 0000
TWP/C1 (Manus)      6/30/2005, 2100
TWP/C2 (Nauru)      6/30/2005, 2100
TWP/C3 (Darwin)     6/30/2005, 2100
PYE/M1 (Pt. Reyes)  4/08/2005, 1900**

** At Pt. Reyes, the original retrieval coefficients implemented in March 2005 were based 
on a version of the Rosenkranz model that had been modified to use the HITRAN half-width 
at 22 GHz and to be consistent with the water vapor continuum in MONORTM.  These 
retrievals yield nearly identical results to the MONORTM retrievals.  Therefore the Pt. Reyes 
data prior to 4/08/2005 may not require reprocessing.

• Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
• Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)

• MWR column precipitable water vapor(vap)
• Averaged total liquid water along LOS path(liq)

• MWR column precipitable water vapor(vap)
• Averaged total liquid water along LOS path(liq)

• Averaged total liquid water along LOS path(liq)
• MWR column precipitable water vapor(vap)

• Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
• Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)

• Averaged total liquid water along LOS path(liq)
• MWR column precipitable water vapor(vap)

SGP/SIRS/E1 - Intermittantly missing downwelling diffuse

Starting on or about 10/26/2005 the downwelling diffuse hemispheric irradiance (Eppley 
8-48) instrument had intermittant missing values. Technicians found a loose wire on the 
instrument connector and repaired it on 4/4/2006. 

Use global shortwave hemispheric (PSP) component - normal incident component (CosZA*NIP) 
to calulate diffuse component.  Comparison of absolute difference between actual and 
computed diffuse component values and diffuse standard deviations > 1-2 W/m2 can help filter 
the noisy diffuse data.  There is no standard method.

• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)

• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)

• null(Raw data stream - documentation not supported)

SGP/SIRS/E19 - Ventilator failure

Dowenlling shortwave hemispheric instrument signal (Eppley PSP) is very erratic due to 
failed ventilator fan which was replaced during PM on 04/13/2006.

• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
  Deviation(down_short_hemisp_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)

• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)

• null(Raw data stream - documentation not supported)

SGP/SIRS/E20 - Instrument noise problem

Afer recovery from lightening strike the upwelling longwave SIRS Eppley PIR (UIR) has had 
noise on both dome and case thermistor measurements.  On 4/12/2006 techs replaced 
defective j-panel at base of tower.

• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
• Instantaneous Case Temperature(inst_up_long_case_temp)
• Instantaneous Dome Temperature(inst_up_long_dome_temp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
  Deviation(up_long_hemisp_std)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

• Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)

• null(Raw data stream - documentation not supported)

TWP/SMET/C3 - ORG data noisy due to degraded ground

SMET Rain Data began to be noisy during December 2005 and the problem slowly became worse 
over time so that in February 2006 the ORG was reporting with a constant background value 
of around 0.10 mm/hr rain rate.  ORG voltage showed a near constant value above the 85mV 
threshold.  The ground for the ORG had become degraded and was lost due to corrosion.

• Precipitation mean(precip_mean)
• Precipitation maximum(precip_max)
• Precipitation standard deviation(precip_sd)
• precipitation minimum(precip_min)

SGP/EBBR/E8 - Sensible and Latent Heat Flux Suspect

The left humidity sensor produced large spikes frequently.  This resulted in incorrect 
measurements of vapor pressure gradient and thus calculations of sensible and latent heat 
flux.

• top vapor pressure(vp_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• Top humidity(hum_top)
• h(h)
• Bottom humidity(hum_bot)
• bottom vapor pressure(vp_bot)

• Bottom humidity(hum_bot)
• bottom vapor pressure(vp_bot)
• Top humidity(hum_top)
• top vapor pressure(vp_top)

• Left relative humidity(mv_hum_l)

TWP/SMET/C1 - Upper wind sensor failure

The upper wind speed sensor was binding at low wind speeds.  Comparison to the lower wind 
sensor showed that the upper sensor flat-lines for long periods of time.  The upper 
anemometer was replaced.

• Upper sensor, wind direction standard deviation(up_dir_sd)
• Upper sensor, wind direction vector average(up_dir_vec_avg)
• Upper sensor, wind speed maximum(up_spd_max)
• Upper sensor, wind speed arithmetic average(up_spd_arith_avg)
• Upper sensor, wind speed vector average(up_spd_vec_avg)
• Upper sensor, wind speed minimum(up_spd_min)
• Upper sensor, wind speed standard deviation(up_spd_sd)

SGP/SIRS/E2 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instanteous data records.  
Still, these data are considered far superior to the originally processed data.  The 
reprocessed data were archived in September 2006.

• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/SIRS/E3 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 
These modified procedures introduced a calibration bias in the longwave data.  The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.									      
The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second  averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in August 2006.

• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

SGP/SIRS/E4 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E5 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E7 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

SGP/SIRS/E8 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in February 2004.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instanteous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in September 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E9 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in December 2003. 
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instanteous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

SGP/SIRS/E10 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                               
              
The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in August 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E11 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.									      
The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in August 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/SIRS/E13 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in December 2003. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E15 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

SGP/SIRS/E16 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/SIRS/E18 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

SGP/SIRS/E19 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/SIRS/E20 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in November 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E21 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in November 2006.

• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

SGP/SIRS/E22 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.    
                                                                         
The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in August 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/SIRS/E24 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2004. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

SGP/SIRS/E27 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in May 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/SIRS/C1 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in December 2003. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

SGP/SIRS/E1 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.	

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data.  The 
reprocessed data were archived in October 2006.

• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric Pressure(AtmPress)

TWP/TSI/C1 - high control board temperature

The TT8 control board temperature was high, ~50C, so that the cooling fan was constantly 
on. It appears that the heat sinks were not transferred from the original board to the new 
one when it was replaced. The problem was corrected when heat sinks were installed.

• Pixel count: number thin in zenith circle(region.zenith.count.thin)
• Pixel count: number thin in horizon area(region.horizon.count.thin)
• Percentage thin cloud(percent.thin)
• Pixel count: number total indeterminant(count.unknown)
• Relative \'strength\' of direct sun(sun.strength)
• Pixel count: number opaque in sun circle(region.sun.count.opaque)
• Pixel count: number total in horizon area(region.horizon.count)
• Percent opaque cloud(percent.opaque)
• Pixel count: number below horizon in image(count.sub.horz)
• Sunshine meter(sunny)
• Solar azimuth angle(solar.azimuth)
• Pixel count: number total in processed circle(count.sky)
• Pixel count: number total opaque(count.opaque)
• Pixel count: number opaque in zenith circle(region.zenith.count.opaque)
• Pixel count: number total in zenith circle(region.zenith.count)
• Pixel count: camera and sun strip mask(count.mask)
• Pixel count: number thin in sun circle(region.sun.count.thin)
• Pixel count: number total thin(count.thin)
• Sun altitude above horizon(solar.altitude)
• Pixel count: number opaque in horizon area(region.horizon.count.opaque)
• Pixel count: number total between horizon and processed circle(count.sub.proczen)
• Pixel count: number total in sun circle(region.sun.count)
• Pixel count: box, outside mirror area(count.box)

NSA/MFR10M/C1 - Channel 415 noise

There are some very minor downward spikes in the 415 channel that were first noticed in 
the daytime data on 9/7/2006.  They occur throughout Sept and less into Oct/Nov.  The 
instrument was pulled on 11/22 and will be examined over the winter.  The spikes really are 
very minor, and at times only appear as minor bulges when the plot is expanded to a very 
large scale.

• 25 meter Upwelling Hemispheric Irradiance, Filter 1(up_hemisp_narrowband_filter1)

• 25 meter Upwelling Hemispheric Irradiance, Filter 1(up_hemisp_narrowband_filter1)

TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge added

A tipping bucket rain gauge was added to the TWP.C1 SMET suite of instruments on 20061017. 
 Effective 20060926, two new variables (count and rain amount) were added to the end of 
the twpsmet60sC1.b1 datastream.  Between 9/26 and 10/17, the data for these two variables 
are filled with zeros.  Users should not use the data during this period as the zeros 
are not representative of the rain fall at the site.  When reprocessing of this datastream 
occurs these variables will be added for the 19961009-20060926 and data from 
19961009-20061017 will be filled with -9999 (missing).

• base time(base_time)

TWP/SMET/C2 - Reprocess: Tipping bucket rain gauge added

A tipping bucket rain gauge was added to the TWP.C2 SMET suite of instruments on 20061129. 
Effective 20060926, two new variables (count and rain amount) were added to the end of 
the twpsmet60sC2.b1 datastream.  Between 9/26 and 11/29, the data for these two variables 
are filled with zeros.  Users should not use the data during this period as the zeros are 
not representative of the rain fall at the site.  When reprocessing of this datastream 
occurs these variables will be added for the 19981021-20060926 and data from 
19981021-20061129 will be filled with -9999 (missing).

• base time(base_time)

TWP/SMET/C3 - Reprocess: Tipping bucket rain gauge added

A tipping bucket rain gauge was added to the SMET suite of instruments effective 20060926. 
 Two new variables (count and rain amount) were added at the end of the twpsmet60sC1.b1 
datastream.  When reprocessing of this datastream occurs these variables will be added 
with -9999 (missing) as the value for dates prior to gauge installation.

• base time(base_time)

NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectly

The CMH temp and DP were higher than the co-located T/RH probe at the 2m level.  An 
incorrect calibration along with a failing thermistor caused the readings to be incorrect for 
both measured values Temp and Dew Point.

• Chilled Mirror Calculated Vapor Pressure(VPCMH)
• Chilled Mirror Calculated Relative Humidity(CMHRH)
• Chilled Mirror Dew Point(CMHDP)
• Chilled Mirror Temperature(CMHTemp)

NSA/METTWR/C1 - 40m wind sensor heater failure

The 40m wind direction became frozen at times.  The values from the sensor were flat-lined 
(stdev = 0) much of the time and did not match sensors from other levels.

• 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
• Standard Deviation of 40m Vector Averaged Wind Direction(WD40M_SDU_WVT)

TWP/SMET/C2 - Barometer failure

The barometer began experiencing problems with noise resulting in incorrect data.  The 
problem becames worse over time; after 12/19/2006 @0151 GMT the barometer data is completely 
missing.  The barometer was replaced.

• Barometric Pressure(atmos_pressure)

SGP/SIRS/E22 - Reprocess: Incorrect calibration coefficients

NIP (short_direct_normal) 29541E6 had an incorrect calibration coefficient in the logger 
program. 128.97 should have been 126.67 [W/m2/mV].

• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)

• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)

• null(Raw data stream - documentation not supported)

NSA/METTWR/C1 - PWS Data Questionable

There was a degradation in the PWS lenses.  New lenses were installed on 08/28/2007 but a 
proper calibration was not conducted until 10/10/2007.  Data  during the listed time 
period should be used with caution.

• 15 minute Present Weather Code(PwCod15mi)
• 1 minute Average Visibility(AvgVis1mi)
• Instant Present Weather Code(InstPwCod)
• 1 hour Present Weather Code(PwCod1hr)
• Cumulative Snow Sum(CumSnow)
• 10 minute Average Visibility(AvgVis10m)
• Precipitation Rate(PcpRate)
• Cumulative Water Sum(CumH2O)
• Present Weather Sensor Alarm(PWSAlarm)

SGP/EBBR/E4 - Instrument problem

Wind direction was flat lining near zero and incorrect.

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/SMOS/E7 - Wind sensor binding at low wind speeds

The wind sensor bearings were failing causing the wind speed sensor to report lower than 
actual wind speeds when the winds were below 2 m/s.  The wind monitor was replaced on 
05/29/2007 but this failed to correct the problem.  Subsequently, the site was flooded and it 
took some time to re-establish normal operations.  The wind sensor was again replaced on 
10/30/2007.  After replacement the wind data from the SMOS compared more favorably to 
the co-located EBBR data.

• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

NSA/METTWR/C1 - 20m RH Data Questionable

The 20m RH data was questionable at times.  When the data appeared to be poor was when the 
2m and 20m agreed better than the 20m and the 40m and/or 10m.

• Standard Deviation of 20m Calculated Dew Point(DP20M_STD)
• Standard Deviation of 20m Calculated Vapor Pressure(VP20M_STD)
• Standard Deviation of 20m Relative Humidity(RH20M_STD)
• 20m Average Relative Humidity(RH20M_AVG)
• 20m Average Calculated Vapor Pressure(VP20M_AVG)
• 20m Average Calculated Dew Point(DP20M_AVG)

SGP/RL/C1 - Invalid liquid water channel data

On 20060906, the liquid water channel (LWC) was disabled due to the removal of its 
photomultiplier tube (PMT).  Consequently, the signals recorded for the LWC contain either zero 
or pure noise after that date.

Also, starting on 20070522, the LWC was populated with data from the T2 channel as a 
result of a slight reconfiguration of the data acquisition system.

On 4 March 2008 The LW channel photomultiplier tube was reinstalled in the Raman lidar. 
Effective 0000 UTC on 5 March 2008 the LW channel began producing valid liquid water data 
once again.

• Count rate in the high liquid channel(liquid_counts_high)
• Summed analog signal in the liquid water channel(liquid_analog_high)

TWP/AERI/C2 - Conditioning Electronics Off

The conditioning electronics box on the Electronics was was switched off for the two days 
in question.  It might have been bumped or something.  It was turned back on at the end 
of the day on July 3rd, 2007.  Do not use the data from July 2nd or July 3rd.

• Ambient blackbody temperature(ABBbottomTemp)
• lat(lat)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Number of views in a sequence(sceneMirPosCount)
• Observation date(dateYYMMDD)
• Scene mirror motor driver heat sink temperature(motorDriverTemp)
• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Radiance standard deviation during ambient blackbody view averaged over
  (2510_2515 cm-1)(ABBviewStdDevRadiance2510_2515)
• Duration of scene view(sceneViewDuration)
• Detector temperature sensed via diode near detector(detectorTemp)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Ambient air temperature near the interferometer(airNearInterferometerTemp)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Limit applied to SWskyNEN in determination of SWskyNENacceptable(SWskyNENlimit)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• Limit applied to HBBtempDrift in determination of HBBstable flag(HBBtempDriftLimit)
• Number of terms used in finite field of view correction(numberOfTerms)
• Character string containing instrument name(instrumentUnitNumber)
• Weight factor for bottom used in calculating ambient blackbody temperature
  average(ABBbottomTempWeight)
• Blackbody controller Unit 1 power supply temperature(BBcontroller1temp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Signal conditioning electronics inside air temperature(SCEtemp)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• Blackbody controller Unit 2 power supply temperature(BBcontroller2temp)
• Hot blackbody temperature - apex(HBBapexTemp)
• Ambient air temperature near blackbodies(airNearBBsTemp)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Radiance standard deviation during hot blackbody view averaged over (985_990
  cm-1)(HBBviewStdDevRadiance985_990)
• Radiance standard deviation during ambient blackbody view averaged over
  (2282_2287 cm-1)(ABBviewStdDevRadiance2282_2287)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Radiance standard deviation during hot blackbody view averaged over (2295_2300
  cm-1)(HBBviewStdDevRadiance2295_2300)
• Radiance standard deviation during ambient blackbody view averaged over
  (2295_2300 cm-1)(ABBviewStdDevRadiance2295_2300)
• Resistive temperature of 97 Kohm fixed resistor located in SCE-P4 shell(fixed97KohmResistor)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• base time(base_time)
• Weight factor for apex used in calculating ambient blackbody temperature average(ABBapexTempWeight)
• Scene mirror temperature as measured at the center of the back of the mirror(sceneMirrorTemp)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• AERI interferometer temperature at second port(interferometerSecondPortTemp)
• xxx(dataAvailable)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Radiance standard deviation during ambient blackbody view averaged over (675_680
  cm-1)(ABBviewStdDevRadiance675_680)
• Blackbody cavity geometry factor(BBcavityFactor)
• Size of buffer holding initial spectrum(originalInterferogramSize)
• Imaginary radiance during sky view averaged over (2510_2515 cm-1)(skyViewImaginaryRadiance2510_2515)
• Time offset of tweaks from base_time(time_offset)
• Imaginary radiance during sky view averaged over (2295_2300 cm-1)(skyViewImaginaryRadiance2295_2300)
• AERI instrument data channel number(channelNumber)
• Factor used to convert single-scan noise to two-minute equivalent(twoMinuteNoiseEstimateFactor)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Corrective offset for final hot blackbody average temperature(HBBtempOffset)
• Corrective offset for final ambient blackbody average temperature(ABBtempOffset)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Radiance standard deviation during hot blackbody view averaged over (700_705
  cm-1)(HBBviewStdDevRadiance700_705)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Electronics rack ambient temperature measured at inside top of rack(rackAmbientTemp)
• Laser wavenumber used in definition of output wavenumber scale(outputLaserWavenumber)
• Scene mirror position encoder value(sceneMirPosEncoder)
• Weight factor for apex used in calculating hot blackbody temperature average(HBBapexTempWeight)
• Limit applied to LWskyNEN in determination of LWskyNENacceptable(LWskyNENlimit)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Interferometer front end fan airflow heated temperature: used with unheated
  temperature as measure of airflow.(frontEndFanAirHeatedTemp)
• Original laser wavenumber assumed for this instrument(originalLaserWavenumber)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Stirling cycle cooler expander temperature(coolerExpanderTemp)
• lon(lon)
• Motor step value given to motor controller to achieve proper mirror positioning(sceneMirrorMotorStep)
• Radiance standard deviation during ambient blackbody view averaged over (700_705
  cm-1)(ABBviewStdDevRadiance700_705)
• Scene mirror motor case temperature(mirrorMotorTemp)
• Julian Day including day and fraction of day(JulianDay)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Dummy altitude for Zeb(alt)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Radiance standard deviation during hot blackbody view averaged over (2282_2287
  cm-1)(HBBviewStdDevRadiance2282_2287)
• Ambient air temperature at hatch opening(outsideAirTemp)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Radiance standard deviation during ambient blackbody view averaged over (985_990
  cm-1)(ABBviewStdDevRadiance985_990)
• Version number of Operational Software(systemReleaseNumber)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• Radiance standard deviation during hot blackbody view averaged over (675_680
  cm-1)(HBBviewStdDevRadiance675_680)
• Hot blackbody temperature - rim top(HBBtopTemp)
• Imaginary radiance during sky view averaged over (700_705 cm-1)(skyViewImaginaryRadiance700_705)
• Relative Humidity measured in the Interferometer Enclosure(interferometerEnclosureRelativeHumidity)
• Observation longitude(Longitude)
• Imaginary radiance during sky view averaged over (985_990 cm-1)(skyViewImaginaryRadiance985_990)
• Interferometer window temperature measured on the outside of the aluminum window
  flange(interferometerWindowTemp)
• AERI ingest computer temperature measured at back panel of computer(computerTemp)
• Field of view half angle used in finite FOV correction(FFOVhalfAngle)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• Weight factor for top used in calculating ambient blackbody temperature average(ABBtopTempWeight)
• Resistive temperature of 12 Kohm fixed resistor located in SCE-P3 shell(fixed12KohmResistor)
• Observation latitude(Latitude)
• Size of buffer holding expanded spectrum before interpolation(expandedInterferogramSize)
• Stirling cooler power supply temperature measured at power supply frame(coolerPowerSupplyTemp)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Imaginary radiance during sky view averaged over (2282_2287 cm-1)(skyViewImaginaryRadiance2282_2287)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• Time (HHMMSS)(timeHHMMSS)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Interferometer front end fan airflow unheated temperature: used with heated
  temperature as measure of airflow.(frontEndFanAirUnheatedTemp)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• time(time)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• Radiance standard deviation during hot blackbody view averaged over (2510_2515
  cm-1)(HBBviewStdDevRadiance2510_2515)
• Ambient blackbody temperature - rim top(ABBtopTemp)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• Instrument scene mirror position identifier(sceneMirrorPosition)
• Weight factor for bottom used in calculating hot blackbody temperature average(HBBbottomTempWeight)
• Ambient blackbody temperature - apex(ABBapexTemp)
• Observation Altitude(Altitude)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Imaginary radiance during sky view averaged over (675_680 cm-1)(skyViewImaginaryRadiance675_680)
• Stirling cooler compressor temperature measured at compressor heatsink(coolerCompressorTemp)
• Weight factor for top used in calculating hot blackbody temperature average(HBBtopTempWeight)
• Hot blackbody temperature - rim bottom(HBBbottomTemp)
• AERI instrument unit serial number(AERIunitNumber)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Stirling cycle cooler current(coolerCurrent)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• Number of complete (forward+backward) interferogram scans in sample average(coadditionsCount)
• Relative humidity measured in the optics compartment atop the interferometer.(opticsCompartmentRelativeHumidity)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Resistive temperature of 2500 Ohm fixed resistor - banana plug mounted(fixed2500ohmResistor)
• Spare temperature sensor (location TBD)(spareTemp)

• Raw data stream - documentation not supported(raw)

• null(Raw data stream - documentation not supported)

• Rain sensor analog output: the rain sensor is located inside the hatch near the
  sky aperture and is used to flag the critical condition of rain falling on
  the AERI s(rainSensorIntensity)
• Wave number in reciprocal centimeters(wnumsum14)
• Longwave surface air brightness temperature from radiance average (675_680 cm-1)(surfaceLayerAirTemp675_680)
• Maximum Standard Deviation in Thermistor Channels 0..7(maxSampleStdDev)
• Wave number in reciprocal centimeters(wnumsum1)
• Longwave radiance average (675-680 cm-1) Surface Air(surfaceLayerRadiance675_680)
• Wave number in reciprocal centimeters(wnumsum2)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Wave number in reciprocal centimeters(wnumsum6)
• lon(lon)
• Time (HHMMSS)(timeHHMMSS)
• Longwave radiance average (700_705 cm-1) Elevated Air(elevatedLayerRadiance700_705)
• Wave number in reciprocal centimeters(wnumsum3)
• Wave number in reciprocal centimeters(wnumsum12)
• Wave number in reciprocal centimeters(wnumsum13)
• Wave number in reciprocal centimeters(wnumsum4)
• Wave number in reciprocal centimeters(wnumsum11)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
• Shortwave radiance average (2282_2287 cm-1) Elevated Air(elevatedLayerRadiance2282_2287)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
• Difference between frontEndFanAirHeatedTemp and frontEndFanAirUnheatedTemp
  indicative of front end air flow.(frontEndFanAirTempDiff)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Maximum Temperature Difference Between ABB Thermistors(ABBmaxTempDiff)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm-1)(elevatedLayerAirTemp2282_2287)
• Dummy altitude for Zeb(alt)
• Wave number in reciprocal centimeters(wnumsum7)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• Julian Day including day and fraction of day(JulianDay)
• Wave number in reciprocal centimeters(wnumsum5)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Radiance standard deviation during sky view averaged over (2295_2300 cm-1)(skyViewStdDevRadiance2295_2300)
• AERI instrument data channel number(channelNumber)
• Sun sensor analog output: The sun sensor has a view angle to the sky slightly
  larger than the interferometer FOV and is aligned to the interferometer
  line-of-sight. I(sunSensorIntensity)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• base time(base_time)
• Wave number in reciprocal centimeters(wnumsum8)
• Observation latitude(Latitude)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm-1(LWskyNEN)
• Longwave window radiance average (985_990 cm-1)(longwaveWindowRadiance985_990)
• time(time)
• Radiance standard deviation during sky view averaged over (2510_2515 cm-1)(skyViewStdDevRadiance2510_2515)
• Wave number in reciprocal centimeters(wnumsum9)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• Shortwave window radiance average (2510_2515 cm-1)(shortwaveWindowRadiance2510_2515)
• Version number of Operational Software(systemReleaseNumber)
• Radiance standard deviation during sky view averaged over (675_680 cm-1)(skyViewStdDevRadiance675_680)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Observation date(dateYYMMDD)
• Time offset of tweaks from base_time(time_offset)
• The maximum excursion of hot-blackbody temperature over 5 consecutive scenes,
  centered on the sky view(HBBtempDrift)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Observation longitude(Longitude)
• Character string containing instrument name(instrumentUnitNumber)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Maximum Temperature Difference Between HBB Thermistors(HBBmaxTempDiff)
• xxx(dataAvailable)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
• lat(lat)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm-1)(surfaceLayerAirTemp2295_2300)
• Wave number in reciprocal centimeters(wnumsum10)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm-1(SWskyNEN)
• Logical flag indicating whether HBB temperature is stable (true) or not stable
  (false). Determined using HBBtempDrift and HBBtempDriftLimit.(HBBstable)
• Radiance standard deviation during sky view averaged over (700_705 cm-1)(skyViewStdDevRadiance700_705)
• Observation Altitude(Altitude)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• Radiance standard deviation during sky view averaged over (985_990 cm-1)(skyViewStdDevRadiance985_990)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm-1)(elevatedLayerAirTemp700_705)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• Radiance standard deviation during sky view averaged over (2282_2287 cm-1)(skyViewStdDevRadiance2282_2287)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
• Duration of scene view(sceneViewDuration)
• Shortwave radiance average (2295_2300 cm-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
• Shortwave window brightness temperature from radiance average (2510_2515 cm-1)(shortwaveWindowAirTemp2510_2515)
• AERI instrument unit serial number(AERIunitNumber)
• Longwave window brightness temperature from radiance average (985_990 cm-1)(longwaveWindowAirTemp985_990)
• Difference between actual and ideal motor encoder values for current view
  indicative of quality of the mirror positioning.(sceneMirPosEncoderDrift)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)

• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• lat(lat)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• Time offset of tweaks from base_time(time_offset)
• AERI instrument data channel number(channelNumber)
• base time(base_time)
• Observation latitude(Latitude)
• lon(lon)
• Version number of Operational Software(systemReleaseNumber)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Mean of radiance spectra ensemble(mean_rad)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Time (HHMMSS)(timeHHMMSS)
• AERI instrument unit serial number(AERIunitNumber)
• Character string containing instrument name(instrumentUnitNumber)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Dummy altitude for Zeb(alt)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Observation Altitude(Altitude)
• Julian Day including day and fraction of day(JulianDay)
• Observation longitude(Longitude)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• Observation date(dateYYMMDD)
• Duration of scene view(sceneViewDuration)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• time(time)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• Wave number(wnum)

• Version number of Operational Software(systemReleaseNumber)
• Time (HHMMSS)(timeHHMMSS)
• Julian Day including day and fraction of day(JulianDay)
• time(time)
• Hot blackbody temperature used in calibration(calibrationHBBtemp)
• Ambient temperature used in calibration(calibrationAmbientTemp)
• AERI instrument unit serial number(AERIunitNumber)
• Mean of radiance spectra ensemble(mean_rad)
• Standard deviation of radiance spectra ensemble(standard_dev_mean_rad)
• lon(lon)
• lat(lat)
• Ambient air temperature at hatch opening(outsideAirTemp)
• Wave number(wnum)
• Type of scene that has been calibrated (ASCII character as float)(calibratedSceneID)
• Character string containing instrument name(instrumentUnitNumber)
• Time offset of tweaks from base_time(time_offset)
• Maximum departure from ideal of the mirror position over the course of all
  contributing views. Typically two hot, two ambient, and one scene view are
  examine(sceneMirPosEncoderMaxDrift)
• wavenumbers for standard deviation of radiance spectra(wnum2)
• BB Support Structure Temperature(BBsupportStructureTemp)
• Observation relative humidity at AERI blackbodies(atmosphericRelativeHumidity)
• Duration of scene view(sceneViewDuration)
• Logical flag indicating whether hatch is open (true) or not open (false)(hatchOpen)
• Observation Altitude(Altitude)
• Observation date(dateYYMMDD)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Cold blackbody temperature used in calibration(calibrationCBBtemp)
• Time at center of AERI sky observation period(Time_UTC_hours)
• Observation longitude(Longitude)
• Observation latitude(Latitude)
• Scene mirror view angle in non-negative degrees, measured clockwise looking into
  interferometer window.(sceneMirrorAngle)
• Logical flag indicating that a data record is missing (true/false(missingDataFlag)
• Observation atmospheric pressure in AERI electronics(atmosphericPressure)
• AERI instrument data channel number(channelNumber)

• Standard deviation of the average radiance in the 985-990 wavenumber window
  during the AERI dwell time(aeri_dwell_atm_var_channel_1)
• Dummy altitude for Zeb(alt)
• Cloud base height from the MPL(mean_mpl_cbh)
• Ensemble average of 23.8 GHz sky brightness temperature from the MWR(mean_23tbsky)
• Standard deviation of the average radiance in the 2510-2515 wavenumber window
  during the AERI dwell time(aeri_dwell_atm_var_channel_2)
• Standard deviation of 31tbsky ensemble(sdev_31tbsky)
• Binary field indicating which inputs are available and used to set the
  nonclear_flag(nonclear_inputs)
• Standard deviation of cloud2 ensemble(sdev_cloud2_cbh)
• Standard deviation of mpl_cbh ensemble(sdev_mpl_cbh)
• Standard deviation of ratio ensemble about mean_dir_to_diff_ratio(sdev_dir_by_diff_ratio)
• Number of clear observations in ensemble(nobs_mpl_clear)
• Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)
• Standard deviation of the IR temperature ensemble(sdev_irt)
• Calculated cloud cover fraction from the WSI(cloud_cover_fract)
• Number of foggy observations in ensemble (probably condensation on the window)(nobs_mpl_foggy)
• Average IR temperature from the IRT (on the MWR)(mean_irt)
• Standard deviation of cloud1 ensemble(sdev_cloud1_cbh)
• Number of observations in each `large` MWR ensemble (23tbsky and 31tbsky)(nobs_mwr_ensembles_large)
• Number of cloudy observations in ensemble(nobs_cloud3_cbh)
• base time(base_time)
• Standard deviation of liq ensemble(sdev_liq)
• Number of observations in each MWR ensemble (23tbsky, 31tbsky, vap, liq)(nobs_mwr_ensembles)
• Cloud base height estimate from the field mean_AERI_BT_channel_1(cbh_AERI_channel_1)
• Retrieved profile sample time minus sonde launch time(sonde_offset_time)
• Ensemble average of total water vapor along LOS path from the MWR(mean_vap)
• Ensemble average of second cloud base height from the Belfort ceilometer(mean_cloud2_cbh)
• Standard deviation of 23tbsky ensemble(sdev_23tbsky)
• Ensemble average of 31.4 GHz sky brightness temperature from the MWR(mean_31tbsky)
• Standard deviation of 23tbsky ensemble(sdev_23tbsky_large)
• Time offset of tweaks from base_time(time_offset)
• Number of cloudy observations in ensemble(nobs_cloud1_cbh)
• IR temperature calculated from the AERI spectral response function used to
  mimick the output from the IR thermometer on the MWR(calculated_irt)
• Cloud detection flag from sgpaerilblcloudsC1.c1(nonclear_flag)
• Cloud base height estimate from the field mean_AERI_BT_channel_2(cbh_AERI_channel_2)
• lat(lat)
• Ensemble average of ratios of direct_norm_broadband divided by
  diffuse_hemisp_broadband from the SIROS(mean_dir_by_diff_ratio)
• Ensemble average of third cloud base height from the Belfort ceilometer(mean_cloud3_cbh)
• Average total liquid water along LOS path from the MWR(mean_liq)
• Standard deviation of vap ensemble(sdev_vap)
• Number of clear observations in ensemble(nobs_cloud2_clear)
• Number of cloudy observations in ensemble(nobs_mpl_cbh)
• AERI sample time minus WSI image time(wsi_offset_time)
• Number of clear observations in ensemble(nobs_cloud1_clear)
• Standard deviation of cloud3 ensemble(sdev_cloud3_cbh)
• Standard deviation of 31tbsky ensemble(sdev_31tbsky_large)
• Data quality flag for MPL cbh ensemble(mpl_cbh_dq_flag)
• Number of cloudy observations in ensemble(nobs_cloud2_cbh)
• Average of brightness temperatures calculated from AERI radiances within
  spectral window for channel 1: [1142.20,1147.03](mean_AERI_BT_channel_1)
• Serial number for the sonde used at this time.(sonde_serial_number)
• Ensemble average of first cloud base height from the Belfort ceilometer(mean_cloud1_cbh)
• Number of clear observations in ensemble(nobs_cloud3_clear)
• time(time)
• lon(lon)
• Average of brightness temperatures calculated from AERI radiances within
  spectral window for channel 2: [2506.20,2511.02](mean_AERI_BT_channel_2)
• Number of ratios in ensemble(nobs_dir_by_diff_ratio)

TWP/AERI/C2 - Reprocess: Incorrect lat/lon/alt

AERI reporting wrong lat/lon in data.  The values reported are representative of Darwin, 
not Nauru.  A low level reprocessing task has been submitted.

• lon(lon)
• lat(lat)

• Raw data stream - documentation not supported(raw)

• lon(lon)
• lat(lat)

• lon(lon)
• lat(lat)

• lon(lon)
• lat(lat)

• lon(lon)
• lat(lat)

SGP/SIRS/E20 - Failed tracker and improperly configured tracker

On 1/15/2007 the E20 tracker failed due to weather.  On 3/14 it was replaced but 
configured incorrectly (presumably the wrong lat/long).  This wasn't discovered and corrected 
until 6/6/2007 1745GMT.
All shortwave instruments dependent on proper tracker were affected.  This includes 
measurements: downwelling shortwave diffuse and direct normal.  Additionally, the global 
shortwave instrument have also been shaded during the second time range due to improperly set 
tracker.

• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
  Deviation(down_short_hemisp_std)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)

• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)
• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)
• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)

SGP/EBBR/E26 - Sensible and Latent Heat Fluxes Affected by bad temp sensor

The left Thum (temperature of the humidity sensor chamber) measurement was incorrect at 
times, affecting several measurements, including the sensible and latent heat fluxes.

• Temperature of left humidity sensor chamber(rr_thum_l)

• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)

• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top vapor pressure(vp_top)
• Temperature of bottom humidity sensor chamber(thum_bot)
• h(h)

SGP/SIRS/E11 - Failed ventilator fans

Ventilator fans for both the downwelling shortwave hemispheric and downwelling diffuse 
hemispheric instruments failed during this time period.  The thermal effects of daytime 
heating will skew the radiometric measurements of these thermopile instruments.

• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
  Deviation(down_short_hemisp_std)

• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)
• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)

SGP/TSI/C1 - Contamination of mirror

A persistent bird was landing on and polluting the mirror, multiple times throughout the 
day. Spikes were placed on the corners and top of the instrument (an affective deterrent 
in the past) but this bird had the agility to perch on the top-center of the mirror.

• PNG data stream - documentation not supported(png)

• (MPEG data stream - documentation not yet available)

• Pixel count: number thin in zenith circle(region.zenith.count.thin)
• Pixel count: number opaque in zenith circle(region.zenith.count.opaque)
• Pixel count: number total in processed circle(count.sky)
• Percent opaque cloud(percent.opaque)
• Pixel count: number total in zenith circle(region.zenith.count)
• Pixel count: number total thin(count.thin)
• Percentage thin cloud(percent.thin)
• Pixel count: number total opaque(count.opaque)

• JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

SGP/AERI/E14 - Reprocess: Incorrect altitude reported

• Observation Altitude(Altitude)
• Dummy altitude for Zeb(alt)

• Observation Altitude(Altitude)
• Dummy altitude for Zeb(alt)

• Observation Altitude(Altitude)
• Dummy altitude for Zeb(alt)

• Dummy altitude for Zeb(alt)
• Observation Altitude(Altitude)

SGP/EBBR/E4 - Reprocess: Wind Direction Incorrect

The wind direction was misaligned by 180 degrees. If the wind direction was 180 degrees or 
less, add 180 degrees to give the correct direction.  If the wind direction was greater 
than 180 degrees, subtract 180 degrees to give the correct direction.

• wind direction (relative to true north)(wind_d)

• wind direction (relative to true north)(wind_d)

• Wind direction (relative to true north)(mv_wind_d)

NSA/SKYRAD/C1 - Tracker inoperative

Tracker stopped working at this site during the time range specified. Reason for failure 
is unknown.  Tracker power cycled and restarted by maintenance 06/30 2008 1740 GMT.

The short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) data are bad during 
this time.  Data are not recoverable.

• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)

• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)
• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)

SGP/MFRSR/En - Incorrect alltime units

Units of alltime_hemisp_broadband and alltime_hemisp_narrowband_filter(N) are incorrect.  
They should be counts.  A low priority reprocessing task has been submitted to correct 
this metadata error.

• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)

• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)

• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)

• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)

• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)

• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)

• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)

• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)

• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)

• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)

• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)

• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)

• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)

• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)

• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)

• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)

• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)

• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)

SGP/OKM/X1 - Overview of Automated Data Quality - June 2008

Below is a link to an overview from Cindy Morgan and Alex Gartside, the Mesonet QA 
managers of the automated quality assurance results for the June 2008 Oklahoma Mesonet Data.

 OKLAHOMA MESONET/ARS QUALITY ASSURANCE REPORT June 2008 

• soil temperature at 10cm beneath bare soil(tbare10)
• soil temperature at 5 cm beneath bare soil(tbare5)
• soil temperature at 30 cm beneath natural sod cover(tsoil30)
• 10 cm soil temp(tsoil10)
• soil temperature at 5 cm beneath natural sod cover(tsoil5)
• Batter Voltage(vbat)

• standard deviation of wind direction(wdir_sigma)
• standard deviation of wind speed(wspd_sigma)
• Relative humidity inside the instrument enclosure(rh)
• air temperature at 1.5m(tdry_1_5m)
• precipitation(prec_amt)
• vector average wind magnitude(wvec_10m)
• average wind speed at 2m(wspd_2m)
• vector average of wind direction measured at 10m(wdir_10m)
• solar radiation(srad)
• air temperature at 9m(tdry_9m)
• average wind run (arithmetic average speed) at 10m(wspd_10m)
• maximum 3-second wind speed within the 5-minute averaging period(wspd_max)
• Retrieved pressure profile(pres)

• vector average of wind direction measured at 10m(wdir_10m)
• solar radiation(srad)
• average wind run (arithmetic average speed) at 10m(wspd_10m)
• Retrieved pressure profile(pres)
• Relative humidity inside the instrument enclosure(rh)
• average wind speed at 2m(wspd_2m)
• air temperature at 1.5m(tdry_1_5m)
• precipitation(prec_amt)
• air temperature at 9m(tdry_9m)
• standard deviation of wind direction(wdir_sigma)
• maximum 3-second wind speed within the 5-minute averaging period(wspd_max)
• standard deviation of wind speed(wspd_sigma)
• vector average wind magnitude(wvec_10m)

• soil temperature at 5 cm beneath natural sod cover(tsoil5)
• soil temperature at 10cm beneath bare soil(tbare10)
• Batter Voltage(vbat)
• soil temperature at 30 cm beneath natural sod cover(tsoil30)
• soil temperature at 5 cm beneath bare soil(tbare5)
• 10 cm soil temp(tsoil10)

SGP/MWR/C1 - Valid LWP > 1mm excluded from 5 min avgs

The limit of maximum valid liquid water path was set at 1 mm.  Although
this limit was selected 'conservatively' so as to definitely flag
precipitation-contaminated data in the 20-second (sgpmwrlos) files,
the effect has been to exclude valid liquid water paths greater than 1
mm from the 5-minute averages (sgp5mwravg).

The maximum limits for precipitable water vapor (PWV) and liquid water
path (LWP) have been removed, and the averaging algorithm instead
excludes data on the basis of the brightness temperature flags.  These
flags are set below a minimum of 2.75 K (cosmic background) and above
a maximum of 100 K (precipitation).

• Averaged total liquid water along LOS path(liq)
• Standard deviation about the mean for the total liquid water amount(liq_sdev)