SGP - Best Estimate Flux VAP files

The Best Estimate Flux VAP uses input from the 3 radiometer platforms located
at the SGP Central Facility to determine the best estimate of the various
broadband irradiance measurements. Prior to the installation and operation of
the 3rd set of radiometers at the SGP CF, a data set spanning 19950519 -
19970321 has been produced manually, and made available to the ARM community
via the ARM Archive. The purpose of this DQR is to notify users of the above
date range that covers the period the Best Estimate was manually produced, and
to point users to the ARM Technical Report Web page at
http://www.arm.gov/docs/documents/tech_reports/index.html for documentation on
the 'manual' methodology used, i.e. the documentation. Users should refer to
the ARM Technical Report titled 'The ARM Southern Great Plains Central Facility
Best Estimate Radiative Flux CD Presented at the April, 2002 ARM Science 
Team Meeting St. Petersburg, FL'

• up_short_hemisp_diff
• up_long_hemisp_flag
• down_long_hemisp_flag
• down_long_hemisp_diff
• short_direct_normal_flag
• up_short_hemisp_flag
• Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
• Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
• Radiation, net, surface(net_surface_radiation)
• down_short_diffuse_hemisp_flag
• down_short_diffuse_hemisp_diff
• up_long_hemisp_diff
• short_direct_normal_diff
• base_time
• Radiation, shortwave, upwelling, at level, gridded(albedo)
• alt
• lon
• Irradiance, longwave, downwelling, hemispheric(down_long_hemisp)
• Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
• Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
• lat
• zenith
• time_offset
• Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

SGP/SMOS/E13 - 6-month Calibration Checks

During the time periods specified, the SMOS.E13 tower was lowered for 6-month Calibration 
Checks.  During these times wind data are incorrect and temperature and humidity data may 
be incorrect.

Note, exact times when tower was down or maintenance was being performed is sometimes 
unknown.  Users should use the remaining data from these days with caution.

• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Temperature(time_min_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Barometric Pressure(max_bar_pres)

• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Temperature, air(temp)

• Humidity, relative(rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• sd_bar_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

SGP/SMOS/E13 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E13 - T/RH sensor failure

The T/RH sensor began to fail at high RH% values.  Since this site has an aspirated 
radiation shield, values in excess of the 104% manufacturer limit are not expected to occur due 
to rain or condensation.

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

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.

• difswfluxdn_cloudeffect
• sswfluxdn_cloudeffect
• gswfluxdn_cloudeffect

• gswfluxdn_cloudeffect
• sswfluxdn_cloudeffect
• difswfluxdn_cloudeffect

SGP/SIRS/E13 - 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.

• sswfluxdn_cloudeffect
• difswfluxdn_cloudeffect
• gswfluxdn_cloudeffect

• sswfluxdn_cloudeffect
• difswfluxdn_cloudeffect
• gswfluxdn_cloudeffect

SGP/THWAPS/C1 - Minor bias in saturation vapor pressure

The saturation vapor correction when temps are below 0C contained an error
in the multiplier.  The incorrect multiplier only equates to an error of
0.01 kPa which is less than the stated uncertainty of the measurement (+/-
0.035 kPa).

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/AERI/E14 - Sampling rate changes

The sampling rate of the SGP.E14 AERI was changed 4 times during July and August 2005. 
Data quality is not affected but faster sampling rate means that less scans are coadded and 
the signal-to-noise ratio of the spectral data will be different.

The E14 scan rate was increased to rapid sampling mode to support efforts at the SGP. 
However, a hard drive failure occurred during rapid sampling. A second hard drive was 
installed. We tested the new drive to make sure there was no problem by running the system at 
regular sampling speed. There were no problems so the AERI sampling rate was increased to 
rapid sampling mode. However, during observation, it was noted that the computer and hard 
drive could not keep up with the rapid sampling rate and the spectral data badly lagged 
the summary files, usually by 8 spectra. This lag time could have caused hard drive 
corruption because files were still being written when the system was trying to restart at 
00:00 GMT. The solution to the problem was to increase the sampling rate. The sampling rates 
are listed below.

February 10 2005-July 5 2005 Blackbodies 46 coadds each, Sky view 90 coadds
July 6 2005 - July 22 2005 Blackbodies and Sky view 6 coadds each
July 23 2005 - July 28 2005 hard drive failure, no data
July 29 2005 - August 5 2005 Blackbodies 46 coadds each, Sky view 90 coadds
August 6 2005 - present Blackbodies and Sky view 12 coadds each

Dr. David Turner is preparing a VAP to reduce instrument noise when rapid sampling to the 
noise level of normal sampling. This VAP should correct the problem.

• instrumentUnitNumber
• calibrationHBBtemp
• alt
• dateYYMMDD
• missingDataFlag
• outsideAirTemp
• time
• hatchOpen
• sceneMirPosEncoderMaxDrift
• JulianDay
• lon
• channelNumber
• Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)
• Altitude
• wnum2
• atmosphericRelativeHumidity
• systemReleaseNumber
• Longitude
• lat
• time_offset
• wnum
• BBsupportStructureTemp
• base_time
• sceneMirrorAngle
• Time_UTC_hours
• calibrationAmbientTemp
• AERIunitNumber
• Latitude
• timeHHMMSS
• calibrationCBBtemp
• atmosphericPressure
• standard_dev_mean_rad
• sceneViewDuration
• calibratedSceneID

• dateYYMMDD
• missingDataFlag
• sceneViewDuration
• Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)
• atmosphericPressure
• standard_dev_mean_rad
• Time_UTC_hours
• BBsupportStructureTemp
• systemReleaseNumber
• Latitude
• instrumentUnitNumber
• lat
• channelNumber
• Longitude
• hatchOpen
• atmosphericRelativeHumidity
• calibrationAmbientTemp
• wnum2
• AERIunitNumber
• outsideAirTemp
• sceneMirrorAngle
• calibratedSceneID
• calibrationHBBtemp
• Altitude
• wnum
• timeHHMMSS
• sceneMirPosEncoderMaxDrift
• calibrationCBBtemp
• JulianDay
• time
• base_time
• alt
• time_offset
• lon

• skyViewStdDevRadiance2282_2287
• HBBviewStdDevRadiance2510_2515
• Radiation, longwave, radiance, surface air, mean, 2295-2300 cm-1(surfaceLayerRadiance2295_2300)
• HBBviewStdDevRadiance2295_2300
• sceneMirrorMotorStep
• originalLaserWavenumber
• detectorTemp
• Radiation, longwave, brightness temp, surface air, mean, 2295-2300 cm-1(surfaceLayerAirTemp2295_2300)
• HBBtempOffset
• sceneMirrorTemp
• LWskyNEN
• frontEndFanAirUnheatedTemp
• frontEndFanAirTempDiff
• rainSensorIntensity
• SCEtemp
• Longitude
• Radiation, longwave, radiance, surface air, mean, 675-680 cm-1(surfaceLayerRadiance675_680)
• ABBmaxTempDiff
• outsideAirTemp
• HBBtopTemp
• calibratedSceneID
• SWskyNEN
• Altitude
• sunSensorIntensity
• numberOfTerms
• calibrationAmbientTemp
• Radiation, longwave, radiance, atmospheric window, mean, 985-990 cm-1(longwaveWindowRadiance985_990)
• spareTemp
• sceneMirPosEncoderDrift
• time_offset
• atmosphericRelativeHumidity
• LWresponsivity
• SWresponsivity
• Radiation, longwave, radiance, elevated air, mean, 2282-2287 cm-1(elevatedLayerRadiance2282_2287)
• coolerCompressorTemp
• Radiation, longwave, brightness temp, atmospheric window, mean, 985-990 cm-1(longwaveWindowAirTemp985_990)
• computerTemp
• skyViewStdDevRadiance675_680
• twoMinuteNoiseEstimateFactor
• LWskyNENacceptable
• BBcontroller1temp
• mirrorMotorTemp
• sceneMirPosEncoderMaxDrift
• fixed12KohmResistor
• time
• HBBbottomTemp
• ABBviewStdDevRadiance2282_2287
• interferometerWindowTemp
• sceneViewDuration
• ABBviewStdDevRadiance700_705
• HBBviewStdDevRadiance700_705
• AERIunitNumber
• HBBviewStdDevRadiance675_680
• HBBviewStdDevRadiance2282_2287
• fixed97KohmResistor
• ABBtempOffset
• interferometerEnclosureRelativeHumidity
• skyViewImaginaryRadiance675_680
• skyViewImaginaryRadiance2510_2515
• Latitude
• airNearInterferometerTemp
• ABBtopTempWeight
• motorDriverTemp
• alt
• coolerCurrent
• ABBapexTemp
• HBBtempDrift
• LW_HBB_NEN
• opticsCompartmentRelativeHumidity
• Radiation, longwave, brightness temp, elevated air, mean, 700-705 cm-1(elevatedLayerAirTemp700_705)
• Radiation, longwave, radiance, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowRadiance2510_2515)
• coolerPowerSupplyTemp
• hatchOpen
• interferometerSecondPortTemp
• ABBbottomTemp
• HBBviewStdDevRadiance985_990
• atmosphericPressure
• lon
• sceneMirrorAngle
• outputLaserWavenumber
• HBBtopTempWeight
• BBcontroller2temp
• Radiation, longwave, radiance, elevated air, mean, 700-705 cm-1(elevatedLayerRadiance700_705)
• skyViewStdDevRadiance985_990
• fixed2500ohmResistor
• skyViewStdDevRadiance2295_2300
• HBBapexTemp
• missingDataFlag
• HBBapexTempWeight
• calibrationHBBtemp
• ABBtopTemp
• instrumentUnitNumber
• Radiation, longwave, brightness temp, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowAirTemp2510_2515)
• ABBviewStdDevRadiance675_680
• skyViewImaginaryRadiance2295_2300
• LWskyNENlimit
• coolerExpanderTemp
• ABBviewStdDevRadiance2295_2300
• systemReleaseNumber
• ABBapexTempWeight
• BBsupportStructureTemp
• SW_HBB_NEN
• calibrationCBBtemp
• dateYYMMDD
• channelNumber
• airNearBBsTemp
• frontEndFanAirHeatedTemp
• HBBmaxTempDiff
• SWskyNENacceptable
• Radiation, longwave, brightness temp, surface air, mean, 675-680 cm-1(surfaceLayerAirTemp675_680)
• originalInterferogramSize
• ABBviewStdDevRadiance2510_2515
• HBBstable
• Radiation, longwave, brightness temp, elevated air, mean, 2282-2287 cm-1(elevatedLayerAirTemp2282_2287)
• skyViewImaginaryRadiance985_990
• maxSampleStdDev
• timeHHMMSS
• HBBtempDriftLimit
• skyViewStdDevRadiance2510_2515
• SWskyNENlimit
• HBBbottomTempWeight
• BBcavityFactor
• skyViewImaginaryRadiance2282_2287
• expandedInterferogramSize
• ABBbottomTempWeight
• JulianDay
• FFOVhalfAngle
• sceneMirrorPosition
• rackAmbientTemp
• Time_UTC_hours
• coadditionsCount
• sceneMirPosCount
• base_time
• skyViewImaginaryRadiance700_705
• dataAvailable
• skyViewStdDevRadiance700_705
• ABBviewStdDevRadiance985_990
• lat
• sceneMirPosEncoder

• Radiation, longwave, brightness temp, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowAirTemp2510_2515)
• HBBmaxTempDiff
• Radiation, longwave, radiance, elevated air, mean, 700-705 cm-1(elevatedLayerRadiance700_705)
• HBBstable
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)
• calibratedSceneID
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
• lon
• LWskyNEN
• time_offset
• skyViewStdDevRadiance2295_2300
• SWskyNENacceptable
• Altitude
• missingDataFlag
• skyViewStdDevRadiance675_680
• hatchOpen
• maxSampleStdDev
• dateYYMMDD
• Radiation, longwave, radiance, atmospheric window, mean, 985-990 cm-1(longwaveWindowRadiance985_990)
• ABBmaxTempDiff
• atmosphericPressure
• Radiation, longwave, radiance, atmospheric window, mean, 2510-2515 cm-1(shortwaveWindowRadiance2510_2515)
• AERIunitNumber
• Radiation, longwave, brightness temp, atmospheric window, mean, 985-990 cm-1(longwaveWindowAirTemp985_990)
• skyViewStdDevRadiance2510_2515
• SWresponsivity
• lat
• HBBtempDrift
• timeHHMMSS
• calibrationAmbientTemp
• Radiation, longwave, brightness temp, elevated air, mean, 2282-2287 cm-1(elevatedLayerAirTemp2282_2287)
• wnumsum9
• wnumsum8
• wnumsum5
• wnumsum4
• wnumsum7
• wnumsum6
• wnumsum1
• wnumsum2
• wnumsum3
• Time_UTC_hours
• sceneMirPosEncoderDrift
• HBB2minNENestimateNo2Ch2
• HBB2minNENestimateNo2Ch1
• frontEndFanAirTempDiff
• atmosphericRelativeHumidity
• time
• JulianDay
• Latitude
• sceneMirrorAngle
• Radiation, longwave, brightness temp, surface air, mean, 675-680 cm-1(surfaceLayerAirTemp675_680)
• SW_HBB_NEN
• base_time
• SWskyNEN
• Radiation, longwave, radiance, surface air, mean, 675-680 cm-1(surfaceLayerRadiance675_680)
• skyViewStdDevRadiance700_705
• Radiation, longwave, brightness temp, elevated air, mean, 700-705 cm-1(elevatedLayerAirTemp700_705)
• skyViewStdDevRadiance985_990
• LWskyNENacceptable
• ResponsivitySpectralAveragesCh2
• ResponsivitySpectralAveragesCh1
• Radiation, longwave, brightness temp, surface air, mean, 2295-2300 cm-1(surfaceLayerAirTemp2295_2300)
• sceneMirPosEncoderMaxDrift
• systemReleaseNumber
• wnumsum14
• wnumsum13
• wnumsum12
• wnumsum11
• wnumsum10
• Longitude
• dataAvailable
• LWresponsivity
• outsideAirTemp
• SkyNENCh2
• SkyNENCh1
• Radiation, longwave, radiance, elevated air, mean, 2282-2287 cm-1(elevatedLayerRadiance2282_2287)
• Radiation, longwave, brightness temp, 25 cm-1 spectral avgs, 3.3-5.5 um(SkyBrightnessTempSpectralAveragesCh2)
• Radiation, longwave, brightness temp, 25 cm-1 spectral avgs, 5.5-18 um(SkyBrightnessTempSpectralAveragesCh1)
• channelNumber
• calibrationHBBtemp
• Radiation, longwave, radiances, SD, 25 cm-1 spectral avgs, 3.3-5.5 um(SkyUniformityCh2)
• Radiation, longwave, radiances, SD, 25 cm-1 spectral avgs, 5.5-18 um(SkyUniformityCh1)
• HBB2minNENestimateNo1Ch1
• sunSensorIntensity
• Radiation, longwave, radiance, surface air, mean, 2295-2300 cm-1(surfaceLayerRadiance2295_2300)
• HBB2minNENestimateNo1Ch2
• rainSensorIntensity
• instrumentUnitNumber
• skyViewStdDevRadiance2282_2287
• sceneViewDuration
• alt
• LW_HBB_NEN
• calibrationCBBtemp

SGP/AERI/E14 - QC Data corrupted by static

The E14 AERI had elevated channel 2 short band responsivity and noise equivalent radiance 
values. These values are normally used to evaluate data quality. The cause of these high 
values is thought to be due to a static charge. The actual radiance plots are not 
affected.

• SWresponsivity
• SW_HBB_NEN

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.

• Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

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.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
• Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

SGP/AERI/E14 - Reprocess: Incorrect altitude reported

• alt
• Altitude

• Altitude
• alt

• Altitude
• alt

• Altitude
• alt

BSRN Pyran(PSP1) shadearm off alignment and NIP not tracking

Subject: BSRN Data Release (July 15 - July 19, 1994) 

Name: Trevor Ley (SRRB\NOAA)   Instrument Mentor Dr. John DeLuisi

Email address: trevor@srrb.noaa.gov

Telephone: (303) 497-7315

Institution: SRRB\NOAA


Platform/Measurement: BSRN Pyranometer (PSP1) shadearm off
alignment and NIP not tracking.

        what level data: a1

 period of time in question
        start: July 15, 1994 at 00:00:00 (GMT)

        end:   July 19, 1994 at 23:59:59  (GMT)


 Data should be labeled:
        
      -Calculated Global irradiance could be labeled
       "incorrect".
     - NIP not tracking correctly
       
 Discussion of Problem:

  1. The shadearm on the Pyranometer (PSP1), calculating diffuse  
     irradiance, was off alignment (power outage).  
 
     Use this algorithm to pick out the times that the 
     shadearm is off of alignment.

          (PSP2-(NIP*cosine of zenith angle))/PSP1 < .90

   2. NIP tracker was down because of power outage.

Other observations/measurements impacted by this problem:

          * Calculated Global Irradiance and Diffuse Irradiance
          * Direct Normal Irradiance measurement is Wrong

Suggested Corrections of the Problem:  None

    


REQUIRED ACTIONS:

This report is informational no further action required

Experiment Center action required as follows:

     Supply with BSRN data release (July 15- July 19, 1994)


-------------------------------------------------------
TO BE FILLED IN UPON COMPLETION OF ACTION ABOVE:
 Action Taken:


Experiment Center:



Site Operations:



Archive:




EST:



-----------------------------------------------------------------
END

• Downwelling hemispheric infrared irradiance(psig)
• lat
• lon
• time_offset
• Calculated downwelling hemispheric diffuse solar irradiance(psp1)
• psp2
• base_time
• alt
• Observed direct-beam normal solar irradiance(nip)

SGP/AERI/C1 - Reprocessed AERI 00 data

The AERI00 data from 4/10/94 - 7/26/95 was reprocessed as outlined in P950525.4 to correct 
for a obstruction in the instrument's field of view.  The details of this correction are 
given in C951207.1.  This correction assumed that the obstruction was unchaged over this 
time period.  However, it was recently discovered, by examination of the preprocessed 
QME AERI/LBLRTM data that the data from 4/10/94 - 4/27/94 was "different" than the rest of 
the reprocessed QME results.  Examination of personal logs kept by staff at the 
University of Wisconsin - Madison showed that the AERI00 instrument was moved on 4/27/94 and 
therefore there it is possible that the obstruction in the field of view was changed.  It is 
recommended that the reprocessed AERI00 data from 4/10/94 - 4/27/94 be labelled as questionable.

• wnum2
• thermistor13
• thermistor12
• thermistor11
• thermistor10
• originalRecordNumber
• humidity_relative
• thermistor9
• thermistor6
• thermistor5
• thermistor8
• thermistor7
• thermistor2
• thermistor1
• thermistor4
• thermistor3
• thermistor0
• lon
• timeHHMMSS
• standard_dev_mean_rad
• base_time
• Barometric pressure(pressure)
• reflectedTemp
• time_offset
• alt
• wnum
• coldBBTemp
• Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)
• hotBBTemp
• timeBomemHHMM
• lat
• dataType

• thermistor5
• thermistor4
• thermistor3
• thermistor2
• thermistor9
• thermistor8
• thermistor7
• thermistor6
• thermistor0
• thermistor1
• Radiation, longwave, downwelling radiance, 0.5 cm-1 resolution, 3.3-5.5 um(mean_rad)
• wnum
• time_offset
• dataType
• coldBBTemp
• lat
• wnum2
• timeBomemHHMM
• alt
• lon
• timeHHMMSS
• Barometric pressure(pressure)
• standard_dev_mean_rad
• hotBBTemp
• humidity_relative
• originalRecordNumber
• thermistor13
• thermistor11
• thermistor12
• thermistor10
• reflectedTemp
• base_time

• base_time
• wave_num_avg_stan_dev_rad_2510
• wave_num_avg_rad_2295
• alt
• wave_num_avg_BT_2282
• wave_num_avg_BT_2510
• Barometric pressure(pressure)
• humidity_relative
• wave_num_avg_rad_700
• wave_num_avg_stan_dev_rad_985
• wave_num_avg_rad_675
• wave_num_avg_stan_dev_rad_700
• wave_num_avg_BT_2295
• thermistor9
• thermistor7
• thermistor8
• thermistor5
• thermistor6
• thermistor3
• thermistor4
• thermistor1
• thermistor2
• thermistor0
• wave_num_avg_rad_985
• wave_num_avg_rad_2282
• lon
• wave_num_avg_rad_2510
• wave_num_avg_BT_700
• time_offset
• wave_num_avg_stan_dev_rad_675
• dq_flag_ch2
• dq_flag_overall
• dq_flag_ch1
• wave_num_avg_BT_985
• thermistor10
• thermistor11
• hatch_flag
• wave_num_avg_stan_dev_rad_2295
• wave_num_avg_BT_675
• dataType
• lat
• wave_num_avg_stan_dev_rad_2282