SGP/GOES/X1 - g12prof raw data lost due to server failure

The input GOES sounding data were irretrievably lost during this time period 
because of a failure of the computer that collects and processes those data.

• Raw data stream - documentation not supported

SGP/IAP/X1 - Aircraft grounded for maintenance

The IAP aircraft was grounded for maintenance (engine replacement).

• Raw data stream - documentation not supported

SGP/GOES/X1 - GOES-water retrieval system failed

On 2004-03-06, the computer at U.Wisconsin, that processes the GOES vertical sounder data 
and retrieves water-vapor profiles, failed.
Data are permanently lost.

• Raw data stream - documentation not supported

SGP/IAP/X1 - Missing data due to the upgrade of instrument

Since late June, the instruments on the
airplane have been moved to a new bigger plane in preparation for adding
a lot more instruments. The flights resumed in the early of September. No data are 
available during the period of upgrade.

• Raw data stream - documentation not supported

SGP/IRSI/C1 - IR sky cover

The IR sky cover emission measurements were mostly at 100%.

• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)

SGP/IRSI/C1 - maintenance

The data are missing due to hardware and/or software maintenance.

• qc_sky_cover_opaque_wide
• qc_reference_bb_temperature_3
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• East longitude(lon)
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow
• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• camera_temperature
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_sky_cover_thin_wide
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• reference_bb_temperature_1

• Altitude above mean sea level(alt)
• enclosure_temperature
• qc_reference_bb_temperature_2
• qc_precipitable_water_vapor
• qc_reference_bb_temperature_3
• camera_temperature
• qc_enclosure_temperature
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• qc_reference_bb_temperature_1
• time
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• qc_sky_cover_low_emission_wide
• qc_sky_cover_high_emission_narrow
• qc_external_bb_temperature_1
• qc_sky_cover_high_emission_wide
• North latitude(lat)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• reference_bb_temperature_3
• qc_sky_cover_low_emission_narrow
• reference_bb_temperature_1
• reference_bb_temperature_2
• East longitude(lon)
• external_bb_temperature_1
• external_bb_temperature_2
• qc_camera_temperature
• external_bb_temperature_3
• blackbody_radiance
• time_offset
• base_time
• qc_external_bb_temperature_2
• qc_external_bb_temperature_3
• Precipitable water vapor(precipitable_water_vapor)

SGP/IRSI/C1 - Incorrect visible sky cover

The night-time visible sky cover incorrectly measured 100%.

• Thin sky cover for wide field of view(sky_cover_thin_wide)
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• Thin sky cover narrow field of view(sky_cover_thin_narrow)

SGP/IRSI/C1 - hatch not operating

The blackbody hatch was not operating properly.

• qc_sky_cover_opaque_wide
• qc_reference_bb_temperature_3
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• East longitude(lon)
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow
• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• camera_temperature
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_sky_cover_thin_wide
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• reference_bb_temperature_1

• Altitude above mean sea level(alt)
• enclosure_temperature
• qc_reference_bb_temperature_2
• qc_precipitable_water_vapor
• qc_reference_bb_temperature_3
• camera_temperature
• qc_enclosure_temperature
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• qc_reference_bb_temperature_1
• time
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• qc_sky_cover_low_emission_wide
• qc_sky_cover_high_emission_narrow
• qc_external_bb_temperature_1
• qc_sky_cover_high_emission_wide
• North latitude(lat)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• reference_bb_temperature_3
• qc_sky_cover_low_emission_narrow
• reference_bb_temperature_1
• reference_bb_temperature_2
• East longitude(lon)
• external_bb_temperature_1
• external_bb_temperature_2
• qc_camera_temperature
• external_bb_temperature_3
• blackbody_radiance
• time_offset
• base_time
• qc_external_bb_temperature_2
• qc_external_bb_temperature_3
• Precipitable water vapor(precipitable_water_vapor)

SGP/IRSI/C1 - computer network failure

The internal computer was not on the network.

• qc_sky_cover_opaque_wide
• qc_reference_bb_temperature_3
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• East longitude(lon)
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow
• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• camera_temperature
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_sky_cover_thin_wide
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• reference_bb_temperature_1

• Altitude above mean sea level(alt)
• enclosure_temperature
• qc_reference_bb_temperature_2
• qc_precipitable_water_vapor
• qc_reference_bb_temperature_3
• camera_temperature
• qc_enclosure_temperature
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• qc_reference_bb_temperature_1
• time
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• qc_sky_cover_low_emission_wide
• qc_sky_cover_high_emission_narrow
• qc_external_bb_temperature_1
• qc_sky_cover_high_emission_wide
• North latitude(lat)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• reference_bb_temperature_3
• qc_sky_cover_low_emission_narrow
• reference_bb_temperature_1
• reference_bb_temperature_2
• East longitude(lon)
• external_bb_temperature_1
• external_bb_temperature_2
• qc_camera_temperature
• external_bb_temperature_3
• blackbody_radiance
• time_offset
• base_time
• qc_external_bb_temperature_2
• qc_external_bb_temperature_3
• Precipitable water vapor(precipitable_water_vapor)

SGP/IRSI/C1 - CPU overheating

The internal computer was overheating.

• qc_sky_cover_opaque_wide
• qc_reference_bb_temperature_3
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• East longitude(lon)
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow
• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• camera_temperature
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_sky_cover_thin_wide
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• reference_bb_temperature_1

• Altitude above mean sea level(alt)
• enclosure_temperature
• qc_reference_bb_temperature_2
• qc_precipitable_water_vapor
• qc_reference_bb_temperature_3
• camera_temperature
• qc_enclosure_temperature
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• qc_reference_bb_temperature_1
• time
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• qc_sky_cover_low_emission_wide
• qc_sky_cover_high_emission_narrow
• qc_external_bb_temperature_1
• qc_sky_cover_high_emission_wide
• North latitude(lat)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• reference_bb_temperature_3
• qc_sky_cover_low_emission_narrow
• reference_bb_temperature_1
• reference_bb_temperature_2
• East longitude(lon)
• external_bb_temperature_1
• external_bb_temperature_2
• qc_camera_temperature
• external_bb_temperature_3
• blackbody_radiance
• time_offset
• base_time
• qc_external_bb_temperature_2
• qc_external_bb_temperature_3
• Precipitable water vapor(precipitable_water_vapor)

SGP/IRSI/C1 - Hatch not operating

The data are intermittent due to inconsistent operation of the blackbody hatch.

• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• qc_sky_cover_opaque_wide
• camera_temperature
• qc_reference_bb_temperature_3
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_sky_cover_thin_wide
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• East longitude(lon)
• reference_bb_temperature_1
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow

• enclosure_temperature
• camera_temperature
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• reference_bb_temperature_3
• reference_bb_temperature_1
• reference_bb_temperature_2
• external_bb_temperature_1
• external_bb_temperature_2
• external_bb_temperature_3
• blackbody_radiance
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• Precipitable water vapor(precipitable_water_vapor)

SGP/IRSI/C1 - Reference blackbody temperatures exhibit many spikes

The reference blackbody temperatures and corresponding radiance exhibit many spikes.

• Thin sky cover for wide field of view(sky_cover_thin_wide)
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• reference_bb_temperature_3
• reference_bb_temperature_2
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• reference_bb_temperature_1
• Thin sky cover narrow field of view(sky_cover_thin_narrow)

• blackbody_radiance
• reference_bb_temperature_3
• reference_bb_temperature_1
• reference_bb_temperature_2

SGP/IRSI/C1 - External blackbody temperature exhibits many spikes

The external blackbody temperatures exhibit many spikes.

• Thin sky cover for wide field of view(sky_cover_thin_wide)
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• reference_bb_temperature_3
• reference_bb_temperature_2
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• reference_bb_temperature_1
• Thin sky cover narrow field of view(sky_cover_thin_narrow)

• external_bb_temperature_1
• external_bb_temperature_2
• external_bb_temperature_3

SGP/IRSI/C1 - Incorrect data processing

The IR sky cover data not processed correctly.

• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)

SGP/IRSI/C1 - Incorrect blackbody radiance

The blackbody radiance measurement is incorrect.

• blackbody_radiance

SGP/IRSI/C1 - Reference blackbody temperature missing

The power and temperature sensor cables to the blackbody were broken.

• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• qc_sky_cover_opaque_wide
• camera_temperature
• enclosure_temperature
• qc_reference_bb_temperature_3
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_sky_cover_thin_wide
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• East longitude(lon)
• reference_bb_temperature_1
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow

• reference_bb_temperature_3
• reference_bb_temperature_1
• reference_bb_temperature_2

SGP/IRSI/C1 - CPU overheated

The CPU intermittently overheated, interrupting the acquisition and processing of images. 
This caused periods of missing data, generally from early afternoon until late morning 
(restarted during daily rounds). A cooling unit was added to the system on 6/8 and the IRSI 
was returned to the vendor for repair on 6/19. The IRSI was re-installed on 7/19.

• qc_sky_cover_opaque_wide
• qc_reference_bb_temperature_3
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• East longitude(lon)
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow
• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• camera_temperature
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_sky_cover_thin_wide
• reference_bb_temperature_3
• reference_bb_temperature_2
• base_time
• reference_bb_temperature_1

• Altitude above mean sea level(alt)
• enclosure_temperature
• qc_reference_bb_temperature_2
• qc_precipitable_water_vapor
• qc_reference_bb_temperature_3
• camera_temperature
• qc_enclosure_temperature
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• qc_reference_bb_temperature_1
• time
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• qc_sky_cover_low_emission_wide
• qc_sky_cover_high_emission_narrow
• qc_external_bb_temperature_1
• qc_sky_cover_high_emission_wide
• North latitude(lat)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• reference_bb_temperature_3
• qc_sky_cover_low_emission_narrow
• reference_bb_temperature_1
• reference_bb_temperature_2
• East longitude(lon)
• external_bb_temperature_1
• external_bb_temperature_2
• qc_camera_temperature
• external_bb_temperature_3
• blackbody_radiance
• time_offset
• base_time
• qc_external_bb_temperature_2
• qc_external_bb_temperature_3
• Precipitable water vapor(precipitable_water_vapor)

SGP/EBBR/E40 - Missing Data

Data are not available

• Raw data stream - documentation not supported

SGP/EBBR/E40 - Wind Speed Flatlined

Wind speed is flatlined due to an icing event.

• Raw data stream - documentation not supported

SGP Site Power Outage Due to Winter Storm

On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought 
sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result 
was very very slick roads and mass power outages.
 
The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th.  
The power was restored on 7:56 PM CDT on Wednesday, December 30th
 
Site Emergency procedures were activated and Technicians drained water out of instrument 
reservoirs and other measures as needed, early Monday morning.
 
On Wednesdays as roads and power started was restored to much of the areas east of I-35 , 
Site Technicians performed maintenance on several Extended Facilities.

During this period, data are potentially missing, incorrect, or suspect.  Carefully 
inspect the data before use.

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• qc_sky_cover_opaque_wide
• qc_reference_bb_temperature_3
• qc_reference_bb_temperature_1
• qc_reference_bb_temperature_2
• Altitude above mean sea level(alt)
• Thin sky cover for wide field of view(sky_cover_thin_wide)
• qc_enclosure_temperature
• Opaque sky cover for wide field of view(sky_cover_opaque_wide)
• East longitude(lon)
• qc_sky_cover_thin_narrow
• time_offset
• qc_camera_temperature
• North latitude(lat)
• qc_sky_cover_opaque_narrow
• Thin sky cover narrow field of view(sky_cover_thin_narrow)
• time
• camera_temperature
• enclosure_temperature
• Opaque sky cover for narrow field of view(sky_cover_opaque_narrow)
• qc_sky_cover_thin_wide
• reference_bb_temperature_3
• base_time
• reference_bb_temperature_2
• reference_bb_temperature_1

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• Altitude above mean sea level(alt)
• enclosure_temperature
• qc_precipitable_water_vapor
• qc_reference_bb_temperature_2
• qc_reference_bb_temperature_3
• camera_temperature
• qc_enclosure_temperature
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• qc_reference_bb_temperature_1
• time
• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• qc_sky_cover_low_emission_wide
• qc_sky_cover_high_emission_narrow
• qc_external_bb_temperature_1
• North latitude(lat)
• qc_sky_cover_high_emission_wide
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• reference_bb_temperature_3
• qc_sky_cover_low_emission_narrow
• reference_bb_temperature_1
• reference_bb_temperature_2
• East longitude(lon)
• external_bb_temperature_1
• external_bb_temperature_2
• qc_camera_temperature
• external_bb_temperature_3
• blackbody_radiance
• time_offset
• base_time
• qc_external_bb_temperature_2
• qc_external_bb_temperature_3
• Precipitable water vapor(precipitable_water_vapor)

SGP/IRSI/C1 - IR image

When the power was restored after an ice storm, the IR camera appeared to have drifted out 
of temperature range and a "static" pattern was displayed at the top of each image, 
especially on clear days.

• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)

SGP/IRSI/C1 - Reprocess: IR sky cover

The IR-derived fractional sky cover values appear to be positively biased. The problem was 
corrected when the computer was restarted following scheduled software and security 
patch updates.

• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)

SGP/PSAP/C1 - PSAP flow incorrect

PSAP flow was set too low causing noise and particle loss

• Impactor particle size cut(impactor_state)
• spot_size_area
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• transmittance_red
• transmittance_blue
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• transmittance_green
• sample_volume
• sample_flow_rate

SGP/CPC/C1 - CPC fill valve replace

Data is missing

• f2_flags
• Altitude above mean sea level(alt)
• AOS number concentration of CN (concentration)(concentration)
• time_offset
• cpc_flow
• qc_concentration
• East longitude(lon)
• North latitude(lat)
• base_time
• time
• time_bounds
• dilution_correction_factor

SGP/DL/DLPROF/C1 - Data collected at vendor facility

Data collected during this period were recorded at the vendor facility in England (not 
SGP) for test purposes only.

• time_offset
• battery_voltage
• time
• MET air temperature(temperature)
• Pitch angle of the ship(pitch)
• Altitude above mean sea level(alt)
• North latitude(lat)
• Roll: starboard down positive(roll)
• base_time
• East longitude(lon)
• Atmospheric relative humidity(relative_humidity)

• base_time
• met_wdir
• nbeams
• time_offset
• Pressure, associated geometric height, at altitude, NGM model output(height)
• v_error
• met_lon
• snr_threshold
• Wind direction(wind_direction)
• East longitude(lon)
• wind_direction_error
• met_dt
• Median vertical velocity(w)
• met_wspd
• meridional wind componet(v)
• Eastward component of wind vector(u)
• residual
• Altitude above mean sea level(alt)
• wind_speed_error
• time
• elevation_angle
• met_spr_min
• correlation
• Wind speed, at 10 meters height(wind_speed)
• scan_duration
• met_spr
• mean_snr
• North latitude(lat)
• met_spr_max
• met_lat
• w_error
• met_alt
• u_error

• Altitude above mean sea level(alt)
• ecor_tke
• snr_75
• w_25
• base_time
• ceil_lon
• North latitude(lat)
• ecor_wt
• ecor_wq
• ceil_alt
• sample_frequency
• cbw_75
• ecor_w_kurt
• averaging_time
• ecor_h2o
• Pressure, associated geometric height, at altitude, NGM model output(height)
• time_offset
• ecor_alt
• ecor_lon
• ceil_cbh_25
• ecor_temp
• met_spr_max
• time
• met_lat
• dl_cbh_75
• Wavelength of spectrum data(wavelength)
• ceil_cloud_frequency
• nshots
• Median Doppler lidar cloud base vertical velocity(cbw)
• Vertical velocity kurtosis using SNR threshold(w_kurtosis)
• cbw_up_fraction
• ecor_ustar
• ngate_samples
• met_spr_min
• w_75
• Median vertical velocity(w)
• met_alt
• met_spr_mean
• ecor_lat
• Signal to noise ratio(snr)
• Median Doppler lidar cloud base height(dl_cbh)
• time_bounds
• snr_25
• East longitude(lon)
• noise
• met_lon
• ceil_cbh
• Vertical velocity skewness using SNR threshold(w_skewness)
• cbw_25
• Noise corrected vertical velocity variance(w_variance)
• ecor_w_var
• dl_cbh_zmax
• dl_cbh_25
• ecor_w_skew
• ceil_lat
• Fraction of time that a cloud is detected during averaging period from DL(dl_cloud_frequency)
• snr_threshold
• ceil_cbh_75
• ceil_cbh_zmax

SGP/DL/DLPROF/C1 - Instrumental artifact in vertical velocity variance profiles

Long-term averages of vertical velocity variance profiles developed from vertical staring 
data show a height-dependent sinusoidal modulation superimposed on the atmospheric 
variance profile. This modulation causes a wiggle in the variance profile. The period of the 
wiggle is about 350 m, and the effect is most obvious during hot afternoon periods in the 
summer months. The exact cause of this problem is not known, but we suspect that it may be 
caused by temperature sensitivity in beam alignment.

• Noise corrected vertical velocity variance(w_variance)

SGP/ARMBE2DGRID/X1 -  Reprocessed and Corrected:Will change ECOR input to QCECOR

DATA REPROCESSED and CORRECTED: 

The ARMBE2DGRID data was reprocessed with improved sensible and latent heat flux values. 
Input data from the ECOR instrument was replaced by the QCECOR Value-added product which 
applies more stringent automated quality checks on the eddy correlation data. 

ORIGINAL DQR CATEGORY: Transparent (Does not affect quality)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-07

REPROCESS IDENTIFICATION NUMBER: RID 1441

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

Data quality may be improved slightly after reprocessing for some sensible and latent heat 
flux values as input data from the ECOR instrument will be replaced with data from from 
the QCECOR Value-added product. The QCECOR VAP applies more stringent automated quality 
checks on the eddy correlation data.

• Sensible heat flux(sensible_heat_flux)
• Latent heat flux(latent_heat_flux)
• Surface sensible heat flux, domain mean(sensible_heat_flux_mean)
• Surface latent heat flux, domain mean(latent_heat_flux_mean)

SGP/ARMBESTNS/X1 - Reprocessed and Corrected: Will change ECOR input to QCECOR

DATA REPROCESSED and CORRECTED: 

The ARMBESTNS data was reprocessed with improved sensible and latent heat flux values. 
Input data from the ECOR instrument was replaced by the QCECOR Value-added product which 
applies more stringent automated quality checks on the eddy correlation data.

The reprocessing task will also provide the following variable name changes:
latent_heat_flux_ecor will become latent_heat_flux_qcecor
sensible_heat_flux_ecor will become sensible_heat_flux_qcecor
lat_ecor will become lat_qcecor
lon_ecor will become lon_qcecor
alt_ecor will become alt_qcecor
stn_ecor will become stn_qcecor 



ORIGINAL DQR CATEGORY: Transparent (Does not affect quality)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-07

REPROCESS IDENTIFICATION NUMBER: RID 1442

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

Data quality may be improved slightly after reprocessing for some sensible and latent heat 
flux values as input data from the ECOR instrument will be replaced with data from from 
the QCECOR Value-added product. The QCECOR VAP applies more stringent automated quality 
checks on the eddy correlation data.

The reprocessing task will also provide the following variable name changes:
latent_heat_flux_ecor will become latent_heat_flux_qcecor
sensible_heat_flux_ecor will become sensible_heat_flux_qcecor
lat_ecor will become lat_qcecor
lon_ecor will become lon_qcecor
alt_ecor will become alt_qcecor
stn_ecor will become stn_qcecor

• ECOR surface sensible heat flux(sensible_heat_flux_ecor)
• ECOR surface latent heat flux(latent_heat_flux_ecor)

SGP/CCN/C1 - % super saturation values change after instrument calibration

% super saturation scan values during this time period were 0.12, 0.23, 0.4, 0.85, 0.51, 
0.29 and 0.18. Before and after this time period the % super saturation scan values are 
0.15, 0.25, 0.4, 0.8, 0.5, 0.3 and 0.2.

• supersaturation_set_point

SGP/AOS/C1 - No flow control through impactor

New control board installed and system not rebooted to initiate communications. As a 
result there was no flow control through the impactors. This affects all instruments 
downstream of the impactors.

• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• transmittance_red
• transmittance_blue
• transmittance_green
• sample_volume
• Impactor particle size cut(impactor_state)
• spot_size_area
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• sample_flow_rate

• Bs_R_Dry_Neph3W_raw
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• T_Neph_Dry
• Bbs_R_Dry_Neph3W_raw
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• Impactor particle size cut(impactor_state)
• T_Neph_Inlet_Dry
• P_Neph_Dry
• Bbs_G_Dry_Neph3W_raw
• Bbs_B_Dry_Neph3W_raw
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• RH_Neph_Dry
• Bs_B_Dry_Neph3W_raw
• Bs_G_Dry_Neph3W_raw

• Bbs_B_Wet_Neph3W_raw
• RH_Neph_Wet
• Impactor particle size cut(impactor_state)
• P_Neph_Wet
• Bs_B_Wet_Neph3W_raw
• Bs_G_Wet_Neph3W_raw
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Bbs_G_Wet_Neph3W_raw
• T_Neph_Inlet_Wet
• Bbs_R_Wet_Neph3W_raw
• T_Neph_Wet
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• Bs_R_Wet_Neph3W_raw

SGP/AOS/C1 - Wildfire smoke plumes advecting over facility

Smoke from nearby wildfires advected through SGP C1 during the listed affected time 
ranges, resulting in high signals observable in many of the listed AOS datastreams.

• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)

• AOS CCN droplet count by bin size(N_CCN_dN)
• Mean number concentration of N_CCN(N_CCN)

• AOS number concentration of CN (concentration)(concentration)

• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)

• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)

SGP/CCN/C1 - Problem with flow control regulation

A problem with flow control regulation. The instrument was returned to manufacture DMT for 
repair. The column was found cracked and replaced. Data scans from 5/6/2016 15:36 to 
5/10/2016 16:00 use the default scan mode that steps from 0.2 to 1.0 %ss. After this time, 
the pyramid stepping scheme is implemented.

• T_inlet
• reported_temperature_gradient
• dT_OPC
• overflow
• Q_sample
• supersaturation_set_point
• eta_target
• AOS CCN droplet count by bin size(N_CCN_dN)
• T_read_gradient
• T_OPC
• T_nafion
• size_bin_bounds
• temperature_std
• proportional_valve_voltage
• dT_target_estimated
• T_read_TEC1
• T_read_TEC2
• T_read_TEC3
• seconds_after_transition
• eta
• T_set_gradient
• supersaturation_calculated
• size_bin
• T_set_TEC3
• T_set_TEC2
• first_stage_monitor_voltage
• T_set_TEC1
• Mean number concentration of N_CCN(N_CCN)
• T_sample
• eta_lookup_table
• supersaturation_calculated_target
• Q_sheath
• laser_current
• dilution_correction_factor
• P_sample
• AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
• temp_unstable

SGP/NEPHELOMETER/C1 - Incorrect Relative Humidity

Vaisala T/RH sensor on the outlet of the wet nephelometer gave negative values. Both the 
sensor and PID control board were replaced.

• RH_Neph_Wet

SGP/AOSMET/S01 - Missing wind data

Wind data are missing during this time. The sensor reported an invalid data code. Sensor 
was replaced.

• Wind speed(WindSpeed)
• Wind direction, relative to true North(WindDirection)

SGP/AOS/S01 - Impactor signal polarity backward

Impactor signal polarity backward. This is corrected in subsequent data after the a1. The 
impactor polarity affects the PSAP, TAP, Nephelometers and 3 lambda CAPS. The other 
instruments are not affected.

• Impactor particle size cut(impactor_state)

SGP/DL/DLPROF/C1 - Reprocess: Incorrect serial number

The instrument serial number that appears in the netcdf files global attributes is 
incorrect. The correct serial number is 0116-107.

• base_time

• base_time

SGP/AMC/E39 - Incorrect input sensitivity

The input sensitivity for the PAR_INC sensor at the datalogger was programmed incorrectly, 
creating a bias in the PAR_INC values.

• Raw data stream - documentation not supported

• par_inc_std
• Average incident PAR(par_inc)

SGP/OZONE/S01 - Filter not changed

Filter not changed. Pressure low and response to calibrations increased. The time before 
the filter change is considered suspect.

• Ozone pressure(ozone_pressure)
• Ozone concentration(ozone)
• ozone_bench_temp

SGP/PSAP/S01 - Data gaps > 1 h due to T < 0.7 (Operator couldn't change filter)

Gaps greater than 1 hour where transmission less than 0.7 (minimum recommended by 
Manufacturer).

• transmittance_green
• tr_blue
• dilution_flow_valve_position
• spot_size_area
• Impactor particle size cut(impactor_state)
• transmittance_red_raw
• absorbance_red
• filter_unstable
• transmittance_blue_raw
• absorbance_green
• transmittance_red
• sample_flow_rate
• transmittance_blue_normalization_factor
• transmittance_green_normalization_factor
• transmittance_red_normalization_factor
• absorbance_blue
• seconds_after_transition
• dilution_flow_setpoint
• tr_green
• transmittance_green_raw
• dilution_flow
• transmittance_blue
• tr_red
• dilution_correction_factor

• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_PSAP3W)
• mass_flow
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_PSAP3W)
• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_PSAP3W)
• dilution_flow_setpoint
• transmittance_G
• dilution_flow
• transmittance_B
• transmittance_R
• dilution_flow_valve_position

• spot_size_area
• transmittance_red
• sample_volume
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Impactor particle size cut(impactor_state)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_green
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• sample_flow_rate
• transmittance_blue

• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• sample_volume
• sample_flow_rate
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_blue
• Impactor particle size cut(impactor_state)
• filter_unstable
• transmittance_red
• spot_size_area
• transmittance_green
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• dilution_correction_factor
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)

SGP/PSAP/S01 - Drier used for flow dilution turned off

Pentras drier used for flow dilution was turned off.  This is corrected in the b1-level 
data products as no dilution.

• transmittance_green
• tr_blue
• dilution_flow_valve_position
• spot_size_area
• Impactor particle size cut(impactor_state)
• transmittance_red_raw
• absorbance_red
• filter_unstable
• transmittance_blue_raw
• absorbance_green
• transmittance_red
• sample_flow_rate
• transmittance_blue_normalization_factor
• transmittance_green_normalization_factor
• transmittance_red_normalization_factor
• absorbance_blue
• seconds_after_transition
• dilution_flow_setpoint
• tr_green
• transmittance_green_raw
• dilution_flow
• transmittance_blue
• tr_red
• dilution_correction_factor

• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_PSAP3W)
• mass_flow
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_PSAP3W)
• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_PSAP3W)
• dilution_flow_setpoint
• transmittance_G
• dilution_flow
• transmittance_B
• transmittance_R
• dilution_flow_valve_position

• spot_size_area
• transmittance_red
• sample_volume
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Impactor particle size cut(impactor_state)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_green
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• sample_flow_rate
• transmittance_blue

• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• sample_volume
• sample_flow_rate
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_blue
• Impactor particle size cut(impactor_state)
• filter_unstable
• transmittance_red
• spot_size_area
• transmittance_green
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• dilution_correction_factor
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)

SGP/AOS/C1 - Under counting of CPC

The CPC count was lower than the CCN at the highest percent super saturation value (~1%) 
indicating an undercounting of the CPC due to either clogging or water condensing in the 
butanol. The CPC was removed and cleaned. The increase in signal relative to the CCN after 
cleaning was 5-10%.

• AOS number concentration of CN (concentration)(concentration)

SGP/AOS/PSAP/S01  - Occasional data dropout

Virtual machines did not synch perfectly with the PSAP output causing a 1-second dropout 
about every 10-20 minutes. Due to averaging in processing, this drop propagates into the 
processed data. 

As of 2016-06-13 the problem has been isolated to the output of instrument flow.  The 
instrument clock is slightly slower than data system clock such that approximately every 5 - 
10 minutes there is a second without data.

• transmittance_green
• tr_blue
• dilution_flow_valve_position
• spot_size_area
• Impactor particle size cut(impactor_state)
• transmittance_red_raw
• absorbance_red
• filter_unstable
• transmittance_blue_raw
• absorbance_green
• transmittance_red
• sample_flow_rate
• transmittance_blue_normalization_factor
• transmittance_green_normalization_factor
• transmittance_red_normalization_factor
• absorbance_blue
• seconds_after_transition
• dilution_flow_setpoint
• tr_green
• dilution_flow
• transmittance_green_raw
• transmittance_blue
• tr_red
• dilution_correction_factor

• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_PSAP3W)
• mass_flow
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_PSAP3W)
• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_PSAP3W)
• dilution_flow_setpoint
• transmittance_G
• dilution_flow
• transmittance_B
• transmittance_R
• dilution_flow_valve_position

• spot_size_area
• transmittance_red
• sample_volume
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Impactor particle size cut(impactor_state)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_green
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• sample_flow_rate
• transmittance_blue

• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• sample_volume
• sample_flow_rate
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_blue
• Impactor particle size cut(impactor_state)
• filter_unstable
• transmittance_red
• spot_size_area
• transmittance_green
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• dilution_correction_factor
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)

SGP/PSAP/S01 - Data gaps longer than 1 hour

Vendor specifies Transmission is greater than 0.7 for proper data.  These are a record of 
data gaps > 1 h generally where Transmission is less than 0.7.  Also included are 
non-operational periods.

• transmittance_green
• tr_blue
• dilution_flow_valve_position
• spot_size_area
• Impactor particle size cut(impactor_state)
• transmittance_red_raw
• absorbance_red
• filter_unstable
• transmittance_blue_raw
• absorbance_green
• transmittance_red
• sample_flow_rate
• transmittance_blue_normalization_factor
• transmittance_green_normalization_factor
• transmittance_red_normalization_factor
• absorbance_blue
• seconds_after_transition
• dilution_flow_setpoint
• tr_green
• transmittance_green_raw
• dilution_flow
• transmittance_blue
• tr_red
• dilution_correction_factor

• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_PSAP3W)
• mass_flow
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_PSAP3W)
• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_PSAP3W)
• dilution_flow_setpoint
• transmittance_G
• dilution_flow
• transmittance_B
• transmittance_R
• dilution_flow_valve_position

• spot_size_area
• transmittance_red
• sample_volume
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Impactor particle size cut(impactor_state)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_green
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• sample_flow_rate
• transmittance_blue

• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• sample_volume
• sample_flow_rate
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• transmittance_blue
• Impactor particle size cut(impactor_state)
• filter_unstable
• transmittance_red
• spot_size_area
• transmittance_green
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• dilution_correction_factor
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)

SGP/S01 - Tower inlet not operational

Inlet not operational in order to change met sensor.

• time_offset
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• East longitude(lon)
• P_Neph_Dry
• Altitude above mean sea level(alt)
• base_time
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• time
• T_Neph_Inlet_Dry
• mode_flag
• North latitude(lat)
• T_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• RH_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)

• qc_Bbs_B_Wet_Neph3W
• T_Neph_Inlet_Wet
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• qc_impactor_state
• North latitude(lat)
• qc_Bbs_G_Wet_Neph3W
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• qc_P_Neph_Wet
• mode_flag
• qc_T_Neph_Inlet_Wet
• Altitude above mean sea level(alt)
• qc_Bs_R_Wet_Neph3W
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• base_time
• Impactor particle size cut(impactor_state)
• time_offset
• East longitude(lon)
• density_correction_factor
• qc_T_Neph_Wet
• qc_RH_Neph_Wet
• time
• seconds_after_transition
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• T_Neph_Wet
• RH_Neph_Wet
• qc_Bs_G_Wet_Neph3W
• P_Neph_Wet
• qc_Bs_B_Wet_Neph3W
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• qc_Bbs_R_Wet_Neph3W

• time
• East longitude(lon)
• P_1um_hourly_average
• qc_impactor_state
• Impactor particle size cut(impactor_state)
• Altitude above mean sea level(alt)
• P_10um_hourly_average
• dP_10um_minus_1um
• North latitude(lat)
• impactor_inlet_RH
• P_Neph_Dry
• base_time
• time_offset
• seconds_after_transition

• Altitude above mean sea level(alt)
• geometric_mean
• hv_polarity
• aerosol_flow
• sheath_flow
• sample_pressure
• DMA_inner_radius
• median
• diameter_midpoint
• flow_time
• Sample temperature(sample_temperature)
• North latitude(lat)
• sample_relative_humidity
• geometric_mean_std
• low_voltage
• diffusion_correction
• bypass_flow
• tube_length
• reference_gas_temperature
• lower_size
• tube_diameter
• DMA_outer_radius
• gas_viscosity
• Total concentration(total_concentration)
• reference_gas_viscosity
• d50
• time_offset
• mean
• multiple_charge_correction
• base_time
• reference_mean_free_path
• time
• reference_gas_pressure
• mode
• mean_free_path
• status_flag
• high_voltage
• Sutherland_constant
• DMA_characteristic_length
• East longitude(lon)
• nanoparticle_agglomerate_mobility_analysis
• Number size distribution (dN/dlogDp)(number_size_distribution)

• qc_P_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• P_Neph_Dry
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• qc_Bs_B_Dry_Neph3W
• qc_Bs_G_Dry_Neph3W
• RH_Neph_Dry
• mode_flag
• seconds_after_transition
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• qc_Bbs_B_Dry_Neph3W
• qc_Bbs_G_Dry_Neph3W
• T_Neph_Inlet_Dry
• North latitude(lat)
• qc_impactor_state
• base_time
• qc_Bs_R_Dry_Neph3W
• T_Neph_Dry
• qc_Bbs_R_Dry_Neph3W
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• qc_RH_Neph_Dry
• Impactor particle size cut(impactor_state)
• density_correction_factor
• time
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• time_offset
• qc_T_Neph_Inlet_Dry
• Altitude above mean sea level(alt)
• East longitude(lon)
• qc_T_Neph_Dry

• time_offset
• Altitude above mean sea level(alt)
• time
• base_time
• East longitude(lon)
• Impactor particle size cut(impactor_state)
• North latitude(lat)

• liquid_level
• condensation_temp
• AOS number concentration of CN (concentration)(concentration)
• ambient_pressure
• cabinet_temp
• nozzle_pressure
• East longitude(lon)
• dilution_flow_reading
• dilution_valve_position
• Altitude above mean sea level(alt)
• orifice_pressure
• time_offset
• time
• laser_current
• North latitude(lat)
• base_time
• dilution_flow_setpoint
• optics_temp
• saturation_temp
• fraction_full

• dry_diameter_setting
• Concentration of aerosol(aerosol_concentration)
• scan_time_setting
• North latitude(lat)
• num_bins
• bin_width
• bin_center
• time
• scan_max_diameter_setting
• sample_flow
• atomizer
• time_offset
• Total concentration(total_concentration)
• bin
• base_time
• scan_min_diameter_setting
• scan_type
• dry_rh_setting
• Altitude above mean sea level(alt)
• humid_rh
• East longitude(lon)

• aerosol_flow_calibrated
• nozzle_pressure
• optics_temp
• Altitude above mean sea level(alt)
• condensation_temp
• dilution_correction_factor
• dilution_flow_setpoint
• saturation_temp
• dilution_flow_reading
• fraction_full
• dilution_slope
• dilution_valve_position
• orifice_pressure
• ambient_pressure
• North latitude(lat)
• liquid_level
• qc_concentration
• cabinet_temp
• East longitude(lon)
• base_time
• AOS number concentration of CN (concentration)(concentration)
• time
• time_offset
• laser_current
• dilution_intercept

• reference_gas_pressure
• DMA_inner_radius
• sample_relative_humidity
• time_offset
• North latitude(lat)
• flow_time
• DMA_characteristic_length
• low_voltage
• tube_length
• East longitude(lon)
• bypass_flow
• gas_viscosity
• Total concentration(total_concentration)
• Sample temperature(sample_temperature)
• Number size distribution (dN/dlogDp)(number_size_distribution)
• lower_size
• geometric_mean
• aerosol_flow
• reference_mean_free_path
• mean_free_path
• mode
• status_flag
• mean
• reference_gas_viscosity
• d50
• Altitude above mean sea level(alt)
• reference_gas_temperature
• Sutherland_constant
• DMA_outer_radius
• time
• multiple_charge_correction
• hv_polarity
• median
• nanoparticle_agglomerate_mobility_analysis
• diameter_midpoint
• tube_diameter
• diffusion_correction
• geometric_mean_std
• base_time
• sample_pressure
• high_voltage
• sheath_flow

• absorbance_red
• sample_flow_rate
• dilution_correction_factor
• transmittance_blue_raw
• transmittance_red
• transmittance_red_normalization_factor
• North latitude(lat)
• time_offset
• transmittance_blue
• dilution_flow_valve_position
• qc_impactor_state
• transmittance_green_raw
• qc_sample_flow_rate
• tr_red
• tr_blue
• filter_unstable
• tr_green
• spot_size_area
• Altitude above mean sea level(alt)
• seconds_after_transition
• time
• qc_transmittance_blue
• transmittance_green
• base_time
• qc_transmittance_green
• transmittance_red_raw
• dilution_flow
• Impactor particle size cut(impactor_state)
• absorbance_green
• transmittance_green_normalization_factor
• dilution_flow_setpoint
• qc_transmittance_red
• East longitude(lon)
• transmittance_blue_normalization_factor
• absorbance_blue

• CCN_T_nafion_2
• CCN_T_nafion_1
• base_time
• CCN_baseline_monitor_2
• CCN_baseline_monitor_1
• CCN_overflow_1
• CCN_overflow_2
• CCN_T_set_TEC1_1
• CCN_T_set_TEC2_1
• CCN_T_set_TEC2_2
• CCN_T_set_TEC1_2
• CCN_P_sample_1
• CCN_P_sample_2
• size_bin_bounds
• North latitude(lat)
• time_offset
• AOS CCN droplet count by bin size, second column(N_CCN_dN_2)
• AOS CCN droplet count by bin size, first column(N_CCN_dN_1)
• CCN_Q_sample_2
• CCN_Q_sample_1
• CCN_laser_current_2
• CCN_laser_current_1
• size_bin
• CCN_OPC_set_1
• CCN_OPC_set_2
• time
• CCN_T_read_TEC3_1
• CCN_T_read_TEC3_2
• CCN_T_sample_2
• CCN_T_sample_1
• CCN_supersaturation_set_point_2
• CCN_supersaturation_set_point_1
• CCN_proportional_valve_voltage_2
• CCN_proportional_valve_voltage_1
• AOS number concentration of CCN, second column(N_CCN_2)
• Cloud droplet concentration number from summation of condensation nuclei counter
  size bins(N_CCN_1)
• CCN_first_stage_monitor_voltage_1
• CCN_first_stage_monitor_voltage_2
• CCN_T_nafion_set_2
• CCN_T_nafion_set_1
• CCN_T_inlet_2
• CCN_T_inlet_1
• CCN_Q_sheath_1
• CCN_Q_sheath_2
• CCN_T_read_TEC1_2
• CCN_T_read_TEC1_1
• CCN_temp_unstable_2
• CCN_temp_unstable_1
• East longitude(lon)
• CCN_T_set_TEC3_2
• CCN_T_set_TEC3_1
• CCN_temperature_gradient_1
• N_CCN_bin_number_1
• N_CCN_bin_number_2
• CCN_temperature_gradient_2
• CCN_T_read_TEC2_2
• CCN_T_read_TEC2_1
• CCN_T_OPC_2
• CCN_T_OPC_1
• CCN_T_inlet_set_1
• CCN_T_inlet_set_2
• Altitude above mean sea level(alt)
• CCN_alarm_code_2
• CCN_alarm_code_1

• North latitude(lat)
• time
• mass_flow
• dilution_flow
• East longitude(lon)
• transmittance_G
• transmittance_B
• dilution_flow_valve_position
• transmittance_R
• base_time
• Altitude above mean sea level(alt)
• dilution_flow_setpoint
• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_PSAP3W)
• time_offset
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_PSAP3W)
• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_PSAP3W)

• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• P_Neph_Wet
• mode_flag
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• Altitude above mean sea level(alt)
• East longitude(lon)
• T_Neph_Wet
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• North latitude(lat)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• RH_Neph_Wet
• T_Neph_Inlet_Wet
• time
• base_time
• time_offset

• North latitude(lat)
• time_offset
• time
• Altitude above mean sea level(alt)
• Ozone concentration(ozone)
• ozone_bench_temp
• Ozone pressure(ozone_pressure)
• East longitude(lon)
• base_time

• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• qc_RH_Neph_Wet
• qc_Bs_R_Wet_Neph3W
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• Bs_B_Wet_Neph3W_raw
• qc_T_Neph_Inlet_Wet
• qc_Bbs_B_Wet_Neph3W
• Bbs_B_Wet_Neph3W_raw
• qc_Bs_G_Wet_Neph3W
• Bs_G_Wet_Neph3W_raw
• qc_P_Neph_Wet
• North latitude(lat)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• time_bounds
• qc_Bs_G_Wet_Neph3W_raw
• qc_Bbs_B_Wet_Neph3W_raw
• qc_Bs_R_Wet_Neph3W_raw
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• Impactor particle size cut(impactor_state)
• qc_Bs_B_Wet_Neph3W_raw
• qc_T_Neph_Wet
• P_Neph_Wet
• T_Neph_Inlet_Wet
• qc_Bbs_R_Wet_Neph3W
• qc_Bbs_R_Wet_Neph3W_raw
• Bbs_R_Wet_Neph3W_raw
• time_offset
• East longitude(lon)
• base_time
• Bbs_G_Wet_Neph3W_raw
• Altitude above mean sea level(alt)
• RH_Neph_Wet
• time
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• qc_Bs_B_Wet_Neph3W
• Bs_R_Wet_Neph3W_raw
• T_Neph_Wet
• qc_Bbs_G_Wet_Neph3W_raw
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• qc_Bbs_G_Wet_Neph3W

• sample_flow_rate
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• qc_transmittance_green
• filter_unstable
• qc_Ba_R_Weiss
• qc_Ba_R_raw
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• qc_Ba_B_Weiss
• Altitude above mean sea level(alt)
• time
• time_offset
• sample_volume
• base_time
• spot_size_area
• qc_sample_volume
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• qc_sample_flow_rate
• transmittance_red
• time_bounds
• qc_Ba_G_Weiss
• East longitude(lon)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• North latitude(lat)
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• Impactor particle size cut(impactor_state)
• qc_transmittance_red
• qc_transmittance_blue
• transmittance_green
• qc_Ba_G_raw
• dilution_correction_factor
• qc_Ba_B_raw
• transmittance_blue
• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)

• qc_Bs_G_Dry_Neph3W_raw
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• T_Neph_Dry
• P_Neph_Dry
• qc_Bs_B_Dry_Neph3W_raw
• time_offset
• T_Neph_Inlet_Dry
• East longitude(lon)
• qc_Bbs_R_Dry_Neph3W
• qc_Bbs_G_Dry_Neph3W_raw
• RH_Neph_Dry
• qc_Bbs_G_Dry_Neph3W
• Bbs_R_Dry_Neph3W_raw
• qc_T_Neph_Inlet_Dry
• qc_Bs_R_Dry_Neph3W_raw
• qc_RH_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• Altitude above mean sea level(alt)
• Bs_R_Dry_Neph3W_raw
• qc_P_Neph_Dry
• Bs_G_Dry_Neph3W_raw
• qc_Bbs_B_Dry_Neph3W_raw
• qc_Bs_B_Dry_Neph3W
• Bs_B_Dry_Neph3W_raw
• North latitude(lat)
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• qc_Bbs_B_Dry_Neph3W
• qc_T_Neph_Dry
• Impactor particle size cut(impactor_state)
• qc_Bs_R_Dry_Neph3W
• Bbs_B_Dry_Neph3W_raw
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• base_time
• time
• Bbs_G_Dry_Neph3W_raw
• qc_Bs_G_Dry_Neph3W
• qc_Bbs_R_Dry_Neph3W_raw
• time_bounds

• bin_num
• sample_pressure
• purge_flow
• East longitude(lon)
• current
• sampling_volume
• North latitude(lat)
• Particle size distribution, limited by lower_size_limit and upper_size_limit(size_distribution)
• lower_size_limit
• upper_size_limit
• reference
• scattering_voltage
• sheath_flow
• time
• flow
• time_offset
• Altitude above mean sea level(alt)
• auxiliary
• unit_temperature
• MET air temperature(temperature)
• base_time
• differential_voltage

• Altitude above mean sea level(alt)
• East longitude(lon)
• cabinet_temp
• optics_temp
• saturation_temp
• orifice_pressure
• time_offset
• liquid_level
• nozzle_pressure
• condensation_temp
• aerosol_flow
• qc_concentration
• base_time
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_pressure
• fraction_full
• laser_current
• time

• CCN_proportional_valve_voltage
• time
• CCN_T_sample
• CCN_T_read_TEC2
• CCN_T_read_TEC1
• CCN_T_read_TEC3
• CCN_laser_current
• CCN_supersaturation_set_point
• East longitude(lon)
• CCN_temperature_gradient
• AOS CCN droplet count by bin size(N_CCN_dN)
• CCN_T_inlet
• CCN_baseline_monitor
• CCN_OPC_set
• CCN_T_nafion
• CCN_T_set_TEC3
• CCN_T_set_TEC2
• CCN_T_set_TEC1
• CCN_T_nafion_set
• CCN_P_sample
• CCN_T_inlet_set
• Altitude above mean sea level(alt)
• Mean number concentration of N_CCN(N_CCN)
• CCN_Q_sheath
• size_bin_bounds
• CCN_T_OPC
• time_offset
• AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
• CCN_alarm_code
• CCN_first_stage_monitor_voltage
• base_time
• North latitude(lat)
• CCN_temp_unstable
• size_bin
• CCN_Q_sample
• CCN_overflow

• liquid_level
• nozzle_pressure
• time
• aerosol_flow
• condensation_temp
• base_time
• time_offset
• dilution_flow_reading
• orifice_pressure
• fraction_full
• cabinet_temp
• ambient_pressure
• AOS number concentration of CN (concentration)(concentration)
• optics_temp
• dilution_flow_setpoint
• East longitude(lon)
• Altitude above mean sea level(alt)
• laser_current
• dilution_valve_position
• North latitude(lat)
• saturation_temp

• East longitude(lon)
• Ambient air temperature(T_Ambient)
• Wind direction, relative to true North(WindDirection)
• Rain Duration(rain_duration)
• time
• Wind speed(WindSpeed)
• time_offset
• supply_volts
• ref_volts
• North latitude(lat)
• Rain amount(rain_amount)
• Ambient pressure(P_Ambient)
• base_time
• heater_volts
• Ambient air relative humidity(RH_Ambient)
• Rain Intensity(rain_intensity)
• heater_temp
• Altitude above mean sea level(alt)

• Aerosol light absorption coefficient, blue channel at dry or reference RH(Ba_B_Weiss)
• qc_sample_flow_rate
• qc_Ba_G_Weiss
• qc_Ba_G_raw
• Altitude above mean sea level(alt)
• qc_Ba_R_raw
• qc_sample_volume
• qc_Ba_R_Weiss
• transmittance_green
• Uncorrected aerosol light absorption coefficient, green channel at dry or
  reference RH(Ba_G_raw)
• sample_flow_rate
• East longitude(lon)
• time_offset
• Uncorrected aerosol light absorption coefficient, red channel at dry or
  reference RH(Ba_R_raw)
• base_time
• North latitude(lat)
• Aerosol light absorption coefficient, green channel at dry or reference RH(Ba_G_Weiss)
• time
• qc_Ba_B_raw
• time_bounds
• spot_size_area
• qc_transmittance_blue
• Impactor particle size cut(impactor_state)
• Uncorrected aerosol light absorption coefficient, blue channel at dry or
  reference RH(Ba_B_raw)
• sample_volume
• Aerosol light absorption coefficient, red channel at dry or reference RH(Ba_R_Weiss)
• qc_transmittance_red
• transmittance_blue
• qc_transmittance_green
• transmittance_red
• qc_Ba_B_Weiss

SGP/CPC/C1 - CPC laser fault

The CPC counts went to zero and laser error flag was present. Error flags returned to 
normal and cn counts returned.

• AOS number concentration of CN (concentration)(concentration)

SGP/NEPHELOMETER/C1 - Bad NEPH T/RH values from thermal gradients

Due to the thermal inertia of the instrument wall, slow signal response and a radial 
temperature gradient inside the instrument cavity, the reported RH and temperature inside the 
wet nephelometer are off by 2-10% RH and 1-2 degrees C. The radial temperature gradients 
inside the instrument need to be characterized at several locations within the instrument 
with respect to a calibrated Vaisala T and RH sensor at the instrument exit. The 
resulting fRH VAP needs to be recalculated and analyzed.

• RH_Neph_Wet
• T_Neph_Inlet_Wet
• T_Neph_Wet

SGP/NEPHELOMETER/S01 - No data available

Instruments offline. Data set to zero.

• T_Neph_Inlet_Dry
• P_Neph_Dry
• T_Neph_Dry
• mode_flag
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• RH_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)

• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• density_correction_factor
• mode_flag
• seconds_after_transition
• RH_Neph_Wet
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• T_Neph_Inlet_Wet
• P_Neph_Wet
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Impactor particle size cut(impactor_state)
• T_Neph_Wet
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)

• Bs_B_Dry_Neph3W_raw
• Bbs_R_Dry_Neph3W_raw
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• T_Neph_Dry
• RH_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• Impactor particle size cut(impactor_state)
• Bs_R_Dry_Neph3W_raw
• T_Neph_Inlet_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• Bbs_G_Dry_Neph3W_raw
• Bs_G_Dry_Neph3W_raw
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• P_Neph_Dry
• Bbs_B_Dry_Neph3W_raw
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)

• T_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• P_Neph_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• RH_Neph_Dry
• Impactor particle size cut(impactor_state)
• density_correction_factor
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• mode_flag
• T_Neph_Inlet_Dry
• seconds_after_transition

• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• RH_Neph_Wet
• T_Neph_Inlet_Wet
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• mode_flag
• T_Neph_Wet
• P_Neph_Wet
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)

• T_Neph_Wet
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• Bbs_B_Wet_Neph3W_raw
• Bbs_G_Wet_Neph3W_raw
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• P_Neph_Wet
• Bbs_R_Wet_Neph3W_raw
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• T_Neph_Inlet_Wet
• RH_Neph_Wet
• Bs_B_Wet_Neph3W_raw
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• Impactor particle size cut(impactor_state)
• Bs_G_Wet_Neph3W_raw
• Bs_R_Wet_Neph3W_raw

SGP/UHSAS/S01 - No data available

Instrument offline. No data available.

• North latitude(lat)
• sheath_flow
• auxiliary
• upper_size_limit
• scattering_voltage
• bin_num
• reference
• Altitude above mean sea level(alt)
• East longitude(lon)
• time
• flow
• sample_pressure
• current
• lower_size_limit
• unit_temperature
• purge_flow
• time_offset
• MET air temperature(temperature)
• differential_voltage
• Particle size distribution, limited by lower_size_limit and upper_size_limit(size_distribution)
• sampling_volume
• base_time

SGP/CCN/S01 - Data missing

Instrument offline. No data available.

• CCN_overflow_1
• CCN_overflow_2
• CCN_Q_sheath_1
• CCN_laser_current_2
• CCN_Q_sheath_2
• CCN_laser_current_1
• AOS number concentration of CCN, second column(N_CCN_2)
• Cloud droplet concentration number from summation of condensation nuclei counter
  size bins(N_CCN_1)
• size_bin
• CCN_T_read_TEC3_1
• CCN_T_read_TEC3_2
• CCN_T_sample_2
• CCN_T_sample_1
• CCN_T_set_TEC1_1
• CCN_first_stage_monitor_voltage_1
• CCN_T_read_TEC1_2
• CCN_T_read_TEC1_1
• CCN_first_stage_monitor_voltage_2
• CCN_OPC_set_1
• CCN_OPC_set_2
• CCN_T_read_TEC2_2
• CCN_T_set_TEC2_1
• size_bin_bounds
• CCN_T_set_TEC2_2
• CCN_T_read_TEC2_1
• CCN_T_set_TEC1_2
• CCN_T_nafion_set_2
• CCN_T_OPC_2
• CCN_temp_unstable_2
• CCN_temp_unstable_1
• CCN_T_nafion_set_1
• CCN_T_OPC_1
• East longitude(lon)
• North latitude(lat)
• CCN_T_set_TEC3_2
• CCN_T_nafion_2
• CCN_T_set_TEC3_1
• CCN_T_nafion_1
• CCN_temperature_gradient_1
• N_CCN_bin_number_1
• N_CCN_bin_number_2
• CCN_supersaturation_set_point_2
• CCN_temperature_gradient_2
• CCN_supersaturation_set_point_1
• CCN_T_inlet_set_1
• base_time
• CCN_T_inlet_set_2
• CCN_proportional_valve_voltage_2
• time_offset
• CCN_proportional_valve_voltage_1
• Altitude above mean sea level(alt)
• time
• CCN_T_inlet_2
• CCN_alarm_code_2
• CCN_T_inlet_1
• CCN_alarm_code_1
• AOS CCN droplet count by bin size, second column(N_CCN_dN_2)
• AOS CCN droplet count by bin size, first column(N_CCN_dN_1)
• CCN_Q_sample_2
• CCN_Q_sample_1
• CCN_P_sample_1
• CCN_P_sample_2
• CCN_baseline_monitor_2
• CCN_baseline_monitor_1

SGP/CCN/S01 -  Concentration measurement differences

Total particle number concentrations different approximately by 20-30% between the two 
columns at the same supersaturation setpoints. Possible cause - differences in column 
temperature gradients. Data is suspect. Updated calibration coefficients are needed to derive 
correct supersaturation values from the recorded temperatures.

• AOS CCN droplet count by bin size, second column(N_CCN_dN_2)
• AOS number concentration of CCN, second column(N_CCN_2)
• Cloud droplet concentration number from summation of condensation nuclei counter
  size bins(N_CCN_1)
• AOS CCN droplet count by bin size, first column(N_CCN_dN_1)
• CCN_supersaturation_set_point_2
• CCN_supersaturation_set_point_1

SGP/HTDMA/S01 - Water in the system

The instrument had water in the flow lines, clogging some of the filters and changing flow 
paths. No valid data.

• dry_rh_setting
• scan_min_diameter_setting
• bin_center
• dry_diameter_setting
• scan_time_setting
• scan_type
• sample_flow
• bin_width
• Concentration of aerosol(aerosol_concentration)
• humid_rh
• scan_max_diameter_setting
• bin
• atomizer
• Total concentration(total_concentration)
• num_bins

SGP/AOS/S01 - Missing Data

Data is missing during this time, likely due to power outage or computer failure.

• fraction_full
• condensation_temp
• time_offset
• aerosol_flow
• Altitude above mean sea level(alt)
• laser_current
• qc_concentration
• liquid_level
• base_time
• time
• East longitude(lon)
• cabinet_temp
• AOS number concentration of CN (concentration)(concentration)
• optics_temp
• saturation_temp
• nozzle_pressure
• North latitude(lat)
• ambient_pressure
• orifice_pressure

• bypass_flow
• Altitude above mean sea level(alt)
• geometric_mean
• hv_polarity
• tube_length
• reference_mean_free_path
• aerosol_flow
• time
• flow_time
• reference_gas_temperature
• Sample temperature(sample_temperature)
• reference_gas_pressure
• lower_size
• mode
• tube_diameter
• mean_free_path
• status_flag
• DMA_outer_radius
• high_voltage
• North latitude(lat)
• gas_viscosity
• Total concentration(total_concentration)
• reference_gas_viscosity
• sheath_flow
• sample_relative_humidity
• sample_pressure
• Sutherland_constant
• DMA_characteristic_length
• d50
• geometric_mean_std
• East longitude(lon)
• time_offset
• low_voltage
• DMA_inner_radius
• mean
• multiple_charge_correction
• median
• diameter_midpoint
• nanoparticle_agglomerate_mobility_analysis
• Number size distribution (dN/dlogDp)(number_size_distribution)
• base_time
• diffusion_correction

• condensation_temp
• base_time
• optics_temp
• dilution_flow_setpoint
• time_offset
• dilution_flow_reading
• orifice_pressure
• fraction_full
• cabinet_temp
• laser_current
• dilution_valve_position
• East longitude(lon)
• liquid_level
• Altitude above mean sea level(alt)
• ambient_pressure
• North latitude(lat)
• AOS number concentration of CN (concentration)(concentration)
• nozzle_pressure
• time
• aerosol_flow
• saturation_temp

• liquid_level
• dilution_valve_position
• laser_current
• Altitude above mean sea level(alt)
• orifice_pressure
• North latitude(lat)
• base_time
• condensation_temp
• time_offset
• dilution_flow_setpoint
• optics_temp
• saturation_temp
• ambient_pressure
• cabinet_temp
• AOS number concentration of CN (concentration)(concentration)
• nozzle_pressure
• East longitude(lon)
• dilution_flow_reading
• fraction_full
• time

• mode
• multiple_charge_correction
• tube_length
• East longitude(lon)
• status_flag
• reference_gas_pressure
• hv_polarity
• DMA_inner_radius
• mean
• median
• nanoparticle_agglomerate_mobility_analysis
• bypass_flow
• gas_viscosity
• Total concentration(total_concentration)
• diameter_midpoint
• tube_diameter
• sample_relative_humidity
• reference_gas_viscosity
• diffusion_correction
• d50
• Altitude above mean sea level(alt)
• time_offset
• reference_gas_temperature
• geometric_mean_std
• Sample temperature(sample_temperature)
• Number size distribution (dN/dlogDp)(number_size_distribution)
• base_time
• lower_size
• Sutherland_constant
• North latitude(lat)
• geometric_mean
• DMA_outer_radius
• flow_time
• sample_pressure
• aerosol_flow
• time
• DMA_characteristic_length
• high_voltage
• reference_mean_free_path
• mean_free_path
• sheath_flow
• low_voltage

• ambient_pressure
• East longitude(lon)
• base_time
• fraction_full
• aerosol_flow_calibrated
• AOS number concentration of CN (concentration)(concentration)
• nozzle_pressure
• time
• optics_temp
• Altitude above mean sea level(alt)
• time_offset
• laser_current
• condensation_temp
• dilution_slope
• dilution_valve_position
• dilution_correction_factor
• North latitude(lat)
• dilution_flow_setpoint
• saturation_temp
• orifice_pressure
• liquid_level
• qc_concentration
• cabinet_temp
• dilution_intercept
• dilution_flow_reading

SGP/AOS/S01 - Instrument Sampling From Cabin and Not From Aerosol Inlet

When examining the ratio of the total number concentration from the SMPS vs. the CPCF, a 
shift in the ratio was detected following a site visit where the SMPS was used to 
calibrate other instruments.  Upon further examination by site ops, it was noticed that the 
tubing from the aerosol inlet to the SMPS was not connected.  The instrument had been sampling 
from the cabin and not from the atmosphere.

• mode
• geometric_mean
• Number size distribution (dN/dlogDp)(number_size_distribution)
• Total concentration(total_concentration)
• geometric_mean_std
• median
• mean

• mode
• geometric_mean
• Total concentration(total_concentration)
• mean
• geometric_mean_std
• Number size distribution (dN/dlogDp)(number_size_distribution)
• median

SGP/ARMBESTNS/X1 - Reprocess: OKM and KSU Mesonet Data Error

The VAP code is not correctly handling the situation when the number of sites changes 
within a month for the OKM and KAM data. Use the OKM and KAM data with caution.

• KAM air temperature(temp_kam)
• OKM u wind component(u_wind_okm)
• OKM air temperature(temp_okm)
• OKM surface pressure(pressure_okm)
• KAM v wind component(v_wind_kam)
• OKM relative humidity(rh_okm)
• KAM relative humidity(rh_kam)
• KAM precipitation rate(precip_rate_kam)
• OKM v wind component(v_wind_okm)
• KAM u wind component(u_wind_kam)
• OKM precipitation rate(precip_rate_okm)

SGP/ARMBE2DGRID/X1 - Reprocess: OKM and KSU Mesonet Data Error

The VAP code is not correctly handling the situation when the number of sites changes 
within a month for the OKM and KAM data. This is impacting some of the fields in the 
ARMBE2DGRID data.

• Temperature mean(temp_mean)
• Rain, surface, 1-min avg(precip_rate_mean)
• Wind speed, S-to-N component, at altitude, derived from ETA model(v_wind)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Precipitation intensity(precip_rate)
• V wind component, domain mean(v_wind_mean)
• Wind speed, W-to-E component, at altitude(u_wind)
• Humidity, relative, on hybrid-b grid, derived from RUC model(rh)
• Temperature, air, 60-m height, 30-min intervals(temp)
• Surface pressure, domain mean(pressure_mean)
• U wind component, domain mean(u_wind_mean)
• surface pressure(pressure)

SGP/CPC/C1 - Low CPC signal

The CPC signal was low as the result of a weak laser. As TSI no longer services this 
instrument no replacement is available.

• f2_flags
• AOS number concentration of CN (concentration)(concentration)
• cpc_flow
• dilution_correction_factor

SGP/NEPHELOMETER/C1 - Condensation caused incorrect relative humidity

WetNeph inlet RH was incorrect due to problems with condensation. Sensor was removed and 
dried out.

• T_Neph_Inlet_Dry

• T_Neph_Inlet_Wet

SGP/SMPS/S01 - Power disruption

Disruption in power to the AOS over the weekend prevented instruments that require manual 
startup to be down for more than 24 hours.

• DMA_characteristic_length
• bypass_flow
• Altitude above mean sea level(alt)
• geometric_mean
• hv_polarity
• d50
• tube_length
• reference_mean_free_path
• aerosol_flow
• flow_time
• time
• geometric_mean_std
• reference_gas_temperature
• Sample temperature(sample_temperature)
• lower_size
• reference_gas_pressure
• mode
• East longitude(lon)
• mean_free_path
• tube_diameter
• status_flag
• time_offset
• low_voltage
• DMA_outer_radius
• high_voltage
• DMA_inner_radius
• mean
• North latitude(lat)
• gas_viscosity
• multiple_charge_correction
• Total concentration(total_concentration)
• reference_gas_viscosity
• sheath_flow
• median
• diameter_midpoint
• sample_relative_humidity
• nanoparticle_agglomerate_mobility_analysis
• sample_pressure
• Number size distribution (dN/dlogDp)(number_size_distribution)
• base_time
• Sutherland_constant
• diffusion_correction

• mode
• multiple_charge_correction
• Altitude above mean sea level(alt)
• tube_length
• time_offset
• reference_gas_temperature
• geometric_mean_std
• Sample temperature(sample_temperature)
• status_flag
• East longitude(lon)
• reference_gas_pressure
• hv_polarity
• DMA_inner_radius
• mean
• Number size distribution (dN/dlogDp)(number_size_distribution)
• median
• nanoparticle_agglomerate_mobility_analysis
• base_time
• bypass_flow
• Sutherland_constant
• lower_size
• North latitude(lat)
• gas_viscosity
• geometric_mean
• Total concentration(total_concentration)
• DMA_outer_radius
• flow_time
• diameter_midpoint
• tube_diameter
• reference_gas_viscosity
• sample_relative_humidity
• sample_pressure
• aerosol_flow
• time
• DMA_characteristic_length
• diffusion_correction
• high_voltage
• reference_mean_free_path
• mean_free_path
• sheath_flow
• low_voltage
• d50

SGP/OZONE/S01 - Reprocess: sgpaosozoneS01.a1 to sgpaoso3S01.a1

The sgpaosozoneA01.a1 data is being renamed to aoso3.a1. In addition to 
the rename, we are adding data from raw data columns that were missed. These additional 
columns will be used in subsequent downstream processing.

• time
• North latitude(lat)
• Ozone pressure(ozone_pressure)
• time_offset
• base_time
• East longitude(lon)
• Altitude above mean sea level(alt)
• Ozone concentration(ozone)
• ozone_bench_temp

SGP/IRSI/C1 - Cooler failure

The cooling device failed allowing the interior of the enclosure to consistently exceed 40 
C. An external air conditioner was powered-on, a solar-reflective panel was added, and 
the internal cooler was replaced.

• High emission sky cover for wide field of view(sky_cover_high_emission_wide)
• Low emission sky cover for wide field of view(sky_cover_low_emission_wide)
• High emission sky cover for narrow field of view(sky_cover_high_emission_narrow)
• Low emission sky cover for narrow field of view(sky_cover_low_emission_narrow)
• Precipitable water vapor(precipitable_water_vapor)

SGP/GOES8 - Gap in GOES8 file availability

GOES-8 was commanded into safe hold mode at approximately 4 AM EST on
Tuesday, October 27, in response to a large attitude disturbance.
GOES-10 was placed into a full disk imaging mode beginning at
approximately 8 AM (EST) October 28th to cover for the GOES-8 outage.

Since the GOES8 data feeds the minnis products and the profiles derived
by the University of Wisconsin (sgpg8profX1) these data are unavailable
for the same time period that the GOES8 data are unavailable. We did
receive GOES10 data for some of the period that we are missing GOES8.
The GOES10 data are available for 981028 from 0100 to 1800(GMT), every half
hour. We will be processing these files as a new data stream but there
will be a delay until the ingest is modified to handle the GOES10.

• Raw data stream - documentation not supported

SGP/GOES8 - Missing Data because of University of Wisconsin Computer Problems

Wayne Feltz, who supplies us with these data said the data for these
two days was missing because of problems with the University of 
Wisconsin computer that generates the data files.

• Raw data stream - documentation not supported

SGP/GOES8 - Data Missing

Data are missing for this time period because of problems with the
University of Wisconsin computer on which these data are processed.

• Raw data stream - documentation not supported