Data Quality Reports for Session: 181251 User: chakrabortyt1 Completed: 11/14/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D051110.1SGP/CSPHOT/C1 - Missing datasgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Missing
D061127.1SGP/CSPHOT/C1 - Unit #99 removed for upgradesgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Missing
D070612.2SGP/CSPHOT/C1 - Not Performing Zenith Observations (Cloud Mode)sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Suspect
D070612.3SGP/CSPHOT/C1 - Missing datasgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Missing
D070612.4SGP/CSPHOT/C1 - Not Performing Zenith Observations (Cloud Mode)sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Does not affect quality
D080717.2SGP/CSPHOT/C1 - Instrument failuresgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Suspect
D081030.2SGP/CSPHOT/C1 - AOT 1640 channel data missingsgpcsphotaotC1.a1Missing
D101026.2SGP/CSPHOT/C1 - Robot errors/Obstruction in tubessgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Suspect
D120409.1SGP/CSPHOT/C1 - Solar tracking and Connector panel problemsgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Missing
D131115.2SGP/CSPHOT/C1 - ObstructionsgpcsphotaotC1.a1Suspect
D141031.6SGP/CSPHOT/C1 - ObstructionsgpcsphotaotC1.a1Incorrect
D150116.2SGP/CSPHOT/C1 - Aerosol Optical Depth biased high for unknown reasonssgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Incorrect
D150130.5SGP/CSPHOT/C1 - Instrument ProblemsgpcsphotaotC1.a1, sgpcsphotsizeC1.a1Incorrect
D151015.1SGP/CSPHOT/C1 - PWV data affected by filter degradationsgpcsphotaotC1.a1Suspect
D160104.7SGP Site Power Outage Due to Winter StormsgpcsphotsizeC1.a1, sgpcsphotaotC1.a1Does not affect quality


DQRID : D051110.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/01/2016000006/22/20162359Missing
09/24/2013000009/29/20132359Missing
12/19/2011204112/21/20112042Missing
10/14/2013000010/16/20132359Missing
08/01/2013000008/02/20132359Missing
11/02/2005153011/08/20051630Missing
11/08/2012000011/11/20122359Missing
10/18/2013000010/18/20132359Missing
09/26/2015000010/06/20152359Missing
Subject:
SGP/CSPHOT/C1 - Missing data
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
Data are missing and unrecoverable.
Measurements:sgpcsphotsizeC1.a1:
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • time
  • base_time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • sun_error
  • Column volume size distribution (dV/dlnr)(size)
  • num_of_angles
  • East longitude(lon)
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • aot_412
  • TripletVar_555
  • aot_490
  • aot_551
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • aot_667
  • aot_555
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • TripletVar_551
  • TripletVar_412
  • East longitude(lon)
  • TripletVar_490
  • TripletVar_870
  • timeObs
  • WaterError
  • TripletVar_667
  • Altitude above mean sea level(alt)
  • last_processing_date
  • time_offset
  • TripletVar_1020
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • aot_532
  • aot_531
  • TripletVar_675
  • North latitude(lat)
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • TripletVar_531
  • TripletVar_532
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • TripletVar_443
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_440
  • TripletVar_500
  • aot_675
  • time
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • base_time
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • aot_443
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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DQRID : D061127.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/29/2006153012/07/20061420Missing
Subject:
SGP/CSPHOT/C1 - Unit #99 removed for upgrade
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
S/N 99 was returned to Aeronet for calibration/modification at the end of Sept.  On 
return, the upgraded and recalibrated instrument was relocated to be next to the SWS.
Measurements:sgpcsphotsizeC1.a1:
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • time
  • base_time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • sun_error
  • Column volume size distribution (dV/dlnr)(size)
  • num_of_angles
  • East longitude(lon)
  • Aerosol optical thickness, from CSPHOT(tau440)
  • tail_level
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • East longitude(lon)
  • TripletVar_870
  • timeObs
  • WaterError
  • Altitude above mean sea level(alt)
  • last_processing_date
  • time_offset
  • TripletVar_1020
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • North latitude(lat)
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_440
  • TripletVar_500
  • time
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • base_time
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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DQRID : D070612.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/18/2007000002/05/20072359Suspect
Subject:
SGP/CSPHOT/C1 - Not Performing Zenith Observations (Cloud Mode)
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
There were problems associated with the implementation of "cloud mode" on the upgraded 
CSPHOT system resulting from problems with the programming on the internal EPROM.  The 
"cloud mode" did not work properly and other observations were also affected. For example, 
early morning sun and almucantar observations were missing.

On 4/30/2007, the instrument was re-installed with cloud mode and was verified to be 
working.
Measurements:sgpcsphotsizeC1.a1:
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • time
  • base_time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • sun_error
  • Column volume size distribution (dV/dlnr)(size)
  • num_of_angles
  • East longitude(lon)
  • Aerosol optical thickness, from CSPHOT(tau440)
  • tail_level
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • East longitude(lon)
  • TripletVar_870
  • timeObs
  • WaterError
  • Altitude above mean sea level(alt)
  • last_processing_date
  • time_offset
  • TripletVar_1020
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • North latitude(lat)
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_440
  • TripletVar_500
  • time
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • base_time
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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DQRID : D070612.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/06/2007000003/02/20072359Missing
Subject:
SGP/CSPHOT/C1 - Missing data
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
Data are missing and unrecoverable.
Measurements:sgpcsphotsizeC1.a1:
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • time
  • base_time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • sun_error
  • Column volume size distribution (dV/dlnr)(size)
  • num_of_angles
  • East longitude(lon)
  • Aerosol optical thickness, from CSPHOT(tau440)
  • tail_level
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • East longitude(lon)
  • TripletVar_870
  • timeObs
  • WaterError
  • Altitude above mean sea level(alt)
  • last_processing_date
  • time_offset
  • TripletVar_1020
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • North latitude(lat)
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_440
  • TripletVar_500
  • time
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • base_time
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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DQRID : D070612.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/03/2007000004/29/20072359Does not affect quality
Subject:
SGP/CSPHOT/C1 - Not Performing Zenith Observations (Cloud Mode)
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
The instrument was temporarily replaced while the primary instrument was out for repairs. 
Data should be unaffected, however, zenith observations are not available during this 
time period.

On 4/30/2007, the primary instrument was re-installed with cloud mode and was verified to 
be working.
Measurements:sgpcsphotsizeC1.a1:
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • time
  • base_time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • sun_error
  • Column volume size distribution (dV/dlnr)(size)
  • num_of_angles
  • East longitude(lon)
  • Aerosol optical thickness, from CSPHOT(tau440)
  • tail_level
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • East longitude(lon)
  • TripletVar_870
  • timeObs
  • WaterError
  • Altitude above mean sea level(alt)
  • last_processing_date
  • time_offset
  • TripletVar_1020
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • North latitude(lat)
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_440
  • TripletVar_500
  • time
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • base_time
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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DQRID : D080717.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/22/2008000007/24/20082359Suspect
Subject:
SGP/CSPHOT/C1 - Instrument failure
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
There was a distinct cosine curve in the AOD data, which indicated a problem with the 
instrument, possibly due to a bad eprom in the control box.  The instrument was removed from 
service on 7/24/08 and replaced on 9/24/08.
Measurements:sgpcsphotsizeC1.a1:
  • Column volume size distribution (dV/dlnr)(size)
  • sun_error
  • zenith
  • sky_error
  • siz_index
  • num_of_angles
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_870
  • TripletVar_500
  • WaterError
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • Altitude above mean sea level(alt)
  • TripletVar_340
  • TripletVar_380
  • TripletVar_1020
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)

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DQRID : D081030.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/24/2008000007/25/20102359Missing
Subject:
SGP/CSPHOT/C1 - AOT 1640 channel data missing
DataStreams:sgpcsphotaotC1.a1
Description:
AOT 1640 channel data missing.  The instrument deployed at SGP from September 2008 to July 
2010 was not upgraded with this additional channel.
Measurements:sgpcsphotaotC1.a1:
  • TripletVar_1640
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)

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DQRID : D101026.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/14/2010000010/18/20102359Suspect
Subject:
SGP/CSPHOT/C1 - Robot errors/Obstruction in tubes
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
Data are questionable due to problems with the robot and possible obstruction in 
collimator tubes.
Measurements:sgpcsphotsizeC1.a1:
  • Column volume size distribution (dV/dlnr)(size)
  • sun_error
  • zenith
  • sky_error
  • siz_index
  • num_of_angles
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_870
  • TripletVar_500
  • WaterError
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • TripletVar_1020
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)

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DQRID : D120409.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/10/2011163212/18/20112222Missing
Subject:
SGP/CSPHOT/C1 - Solar tracking and Connector panel problem
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
Robot errors and issues with the connector panels resulted in an inability to find the Sun 
and therefore only cloud mode zenith radiance data were taken during this time.
Measurements:sgpcsphotsizeC1.a1:
  • Column volume size distribution (dV/dlnr)(size)
  • sun_error
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • base_time
  • time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • num_of_angles
  • East longitude(lon)
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_870
  • TripletVar_500
  • WaterError
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • TripletVar_1020
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)

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DQRID : D131115.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/17/2013000010/17/20132359Suspect
Subject:
SGP/CSPHOT/C1 - Obstruction
DataStreams:sgpcsphotaotC1.a1
Description:
There was a possible obstruction or instrument malfunction, causing errors in the data and 
showing diurnal dependence in the AOT data.

Use the quality assured level 2.0 AOT data from AERONET when available 
(sgpcsphotaotfiltqaC1.a1). Level 2.0 data and post-calibration level 1.5 data should become available in 
2014. Users can also use MFRSR data if available.
Measurements:sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_870
  • TripletVar_500
  • WaterError
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • TripletVar_1020
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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DQRID : D141031.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/31/2014000010/26/20142359Incorrect
Subject:
SGP/CSPHOT/C1 - Obstruction
DataStreams:sgpcsphotaotC1.a1
Description:
Spiderwebs found in the collimator tubes affected the 1640 channel data.
Measurements:sgpcsphotaotC1.a1:
  • TripletVar_1640
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)

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DQRID : D150116.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/18/2014000008/04/20141348Incorrect
Subject:
SGP/CSPHOT/C1 - Aerosol Optical Depth biased high for unknown reasons
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
During this time period the aerosol optical depth is biased high by about +1. It 
apparently corrected itself at the end of this period so the cause of the offset is undetermined. 
It likely affected all the other data-products as well. The 3 point variance used to 
filter cloud affected observations are also unusually high even for cloud free days, so most 
data will already be marked bad automatically in the higher order products.
Measurements:sgpcsphotsizeC1.a1:
  • Column volume size distribution (dV/dlnr)(size)
  • sun_error
  • sky_error
  • siz_index
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_870
  • TripletVar_500
  • WaterError
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • TripletVar_1020
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)

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DQRID : D150130.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/23/2015000001/27/20151600Incorrect
Subject:
SGP/CSPHOT/C1 - Instrument Problem
DataStreams:sgpcsphotaotC1.a1, sgpcsphotsizeC1.a1
Description:
There was a possible obstruction or instrument malfunction causing errors in the data and 
showing diurnal dependence in the AOT data.
Measurements:sgpcsphotsizeC1.a1:
  • Column volume size distribution (dV/dlnr)(size)
  • sun_error
  • last_processing_date
  • base_time
  • zenith
  • sky_error
  • siz_index
  • num_of_angles
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_870
  • TripletVar_500
  • WaterError
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • last_processing_date
  • TripletVar_380
  • TripletVar_1020
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)

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DQRID : D151015.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/01/2015000009/25/20152359Suspect
Subject:
SGP/CSPHOT/C1 - PWV data affected by filter degradation
DataStreams:sgpcsphotaotC1.a1
Description:
PWV Data are questionable due to filter degradation.
Measurements:sgpcsphotaotC1.a1:
  • Column precip water vapor(pwv)

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DQRID : D160104.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/26/2015000001/01/20162359Does not affect quality
Subject:
SGP Site Power Outage Due to Winter Storm
DataStreams:sgpcsphotsizeC1.a1, sgpcsphotaotC1.a1
Description:
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.
Measurements:sgpcsphotsizeC1.a1:
  • Altitude above mean sea level(alt)
  • time_offset
  • timeObs
  • last_processing_date
  • time
  • base_time
  • bins
  • zenith
  • sky_error
  • North latitude(lat)
  • siz_index
  • alm_type
  • Aerosol optical thickness, Angstrom coefficient, from CSPHOT(alpha440_870)
  • Column volume size distribution (dV/dlnr)(size)
  • sun_error
  • num_of_angles
  • East longitude(lon)
  • tail_level
  • Aerosol optical thickness, from CSPHOT(tau440)
  • tail2
  • tail1
sgpcsphotaotC1.a1:
  • Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
  • TripletVar_1640
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
  • East longitude(lon)
  • timeObs
  • TripletVar_870
  • WaterError
  • Altitude above mean sea level(alt)
  • last_processing_date
  • TripletVar_1020
  • time_offset
  • Column precip water vapor(pwv)
  • Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
  • Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
  • Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
  • North latitude(lat)
  • TripletVar_670
  • Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
  • Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
  • zenith
  • Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
  • TripletVar_440
  • Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
  • TripletVar_500
  • time
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • TripletVar_380
  • Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
  • Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
  • base_time
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
  • Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

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END OF DATA