DQRs for Session: 180681 User:javadniae1Completed: 10-23-2016

Data Quality Reports for Session: 180681 User: javadniae1 Completed: 10/23/2016

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D051110.1	SGP/CSPHOT/C1 - Missing data	sgpcsphotaotfiltC1.a1	Missing
D141031.6	SGP/CSPHOT/C1 - Obstruction	sgpcsphotaotfiltC1.a1	Incorrect
D150116.2	SGP/CSPHOT/C1 - Aerosol Optical Depth biased high for unknown reasons	sgpcsphotaotfiltC1.a1	Incorrect
D150130.5	SGP/CSPHOT/C1 - Instrument Problem	sgpcsphotaotfiltC1.a1	Incorrect
D151015.1	SGP/CSPHOT/C1 - PWV data affected by filter degradation	sgpcsphotaotfiltC1.a1	Suspect
D160104.7	SGP Site Power Outage Due to Winter Storm	sgpcsphotaotfiltC1.a1	Does not affect quality

DQRID : D051110.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
04/01/2016	0000	06/22/2016	2359	Missing
09/24/2013	0000	09/29/2013	2359	Missing
12/19/2011	2041	12/21/2011	2042	Missing
10/14/2013	0000	10/16/2013	2359	Missing
08/01/2013	0000	08/02/2013	2359	Missing
11/02/2005	1530	11/08/2005	1630	Missing
11/08/2012	0000	11/11/2012	2359	Missing
10/18/2013	0000	10/18/2013	2359	Missing
09/26/2015	0000	10/06/2015	2359	Missing

Subject:	SGP/CSPHOT/C1 - Missing data
DataStreams:	sgpcsphotaotfiltC1.a1
Description:	Data are missing and unrecoverable.
Measurements:	sgpcsphotaotfiltC1.a1: TripletVar_531 TripletVar_532 aot_551 aot_412 aot_555 TripletVar_380 TripletVar_1020 TripletVar_670 TripletVar_340 Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar) TripletVar_500 TripletVar_675 Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870) TripletVar_440 Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675) Altitude above mean sea level(alt) Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500) WaterError Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380) TripletVar_443 time last_processing_date Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020) Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500) aot_531 timeObs aot_532 base_time TripletVar_555 TripletVar_551 TripletVar_412 aot_490 TripletVar_490 TripletVar_1640 Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870) Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340) Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440) Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670) Column precip water vapor(pwv) TripletVar_870 aot_443 aot_675 Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870) time_offset Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640) Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440) zenith North latitude(lat) East longitude(lon) aot_667 TripletVar_667

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DQRID : D141031.6

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/31/2014	0000	10/26/2014	2359	Incorrect

Subject:	SGP/CSPHOT/C1 - Obstruction
DataStreams:	sgpcsphotaotfiltC1.a1
Description:	Spiderwebs found in the collimator tubes affected the 1640 channel data.
Measurements:	sgpcsphotaotfiltC1.a1: TripletVar_1640 Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)

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DQRID : D150116.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/18/2014	0000	08/04/2014	1348	Incorrect

Subject:	SGP/CSPHOT/C1 - Aerosol Optical Depth biased high for unknown reasons
DataStreams:	sgpcsphotaotfiltC1.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:	sgpcsphotaotfiltC1.a1: TripletVar_440 Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675) Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500) Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870) WaterError Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380) TripletVar_380 TripletVar_1020 Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640) Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440) TripletVar_670 Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020) Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500) TripletVar_340 TripletVar_1640 Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870) Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar) Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340) Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440) Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670) Column precip water vapor(pwv) TripletVar_870 Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870) TripletVar_500

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DQRID : D150130.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/23/2015	0000	01/27/2015	1600	Incorrect

Subject:	SGP/CSPHOT/C1 - Instrument Problem
DataStreams:	sgpcsphotaotfiltC1.a1
Description:	There was a possible obstruction or instrument malfunction causing errors in the data and showing diurnal dependence in the AOT data.
Measurements:	sgpcsphotaotfiltC1.a1: TripletVar_380 TripletVar_1020 TripletVar_670 TripletVar_1640 TripletVar_340 Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870) Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340) Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar) Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670) Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440) Column precip water vapor(pwv) TripletVar_870 TripletVar_500 Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870) TripletVar_440 Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675) Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500) Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870) Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380) WaterError Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640) Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440) zenith last_processing_date Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020) Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)

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DQRID : D151015.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/01/2015	0000	09/25/2015	2359	Suspect

Subject:	SGP/CSPHOT/C1 - PWV data affected by filter degradation
DataStreams:	sgpcsphotaotfiltC1.a1
Description:	PWV Data are questionable due to filter degradation.
Measurements:	sgpcsphotaotfiltC1.a1: Column precip water vapor(pwv)

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DQRID : D160104.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/26/2015	0000	01/01/2016	2359	Does not affect quality

Subject:	SGP Site Power Outage Due to Winter Storm
DataStreams:	sgpcsphotaotfiltC1.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:	sgpcsphotaotfiltC1.a1: timeObs base_time TripletVar_380 TripletVar_1020 TripletVar_670 TripletVar_1640 TripletVar_340 Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870) Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar) Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340) Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440) Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670) Column precip water vapor(pwv) TripletVar_870 TripletVar_500 Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870) TripletVar_440 Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675) Altitude above mean sea level(alt) Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500) Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870) Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380) WaterError time_offset Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640) Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440) zenith North latitude(lat) time East longitude(lon) last_processing_date Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020) Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)

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