D Q R Report

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:	sgpcsphotaotC1.a1, sgpcsphotpfn1C1.a1, sgpcsphotaotfiltC1.00, sgpcsphotalmC1.00, sgpcsphotalm1duboC1.00, sgpcsphotcoarsepfn1C1.00, sgpcsphotppC1.00, sgpcsphotaotfiltqaC1.a1, sgpcsphotaotfiltqaC1.00, sgpcsphotsizeC1.a1, sgpcsphotaotC1.00, sgpcsphotppC1.a1, sgpcsphotalmC1.a1, sgpcsphotsizeC1.00, sgpcsphotalm1duboC1.a1, 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.
Suggestions:	Since the cause of the bias has not been determine, the data cannot be corrected, and should not be used. Use the mfrsr derive AOD instead.
Measurements:	sgpcsphotppC1.a1: pp_rad more sgpcsphotalmC1.a1: alm_rad more sgpcsphotaotfiltqaC1.00: Raw data stream - documentation not supported more sgpcsphotalm1duboC1.00: Raw data stream - documentation not supported more sgpcsphotaotfiltC1.a1: Angstrom440_675 aot_1640 TripletVar_1640 WaterError pwv TripletVar_340 aot_670 TripletVar_500 TripletVar_870 Angstrom440_675_Polar Angstrom500_870 aot_380 aot_500 Angstrom440_870 aot_340 TripletVar_380 aot_870 Angstrom380_500 TripletVar_670 aot_1020 TripletVar_1020 aot_440 Angstrom340_440 TripletVar_440 more sgpcsphotcoarsepfn1C1.00: Raw data stream - documentation not supported more sgpcsphotsizeC1.a1: siz_index alpha440_870 sun_error tau440 size sky_error tail1 tail2 tail_level more sgpcsphotaotC1.a1: TripletVar_1640 TripletVar_870 Angstrom440_675 aot_440 aot_1020 pwv aot_670 TripletVar_1020 aot_500 Angstrom340_440 aot_340 aot_1640 Angstrom440_675_Polar TripletVar_340 TripletVar_500 TripletVar_670 Angstrom440_870 WaterError TripletVar_440 aot_870 aot_380 Angstrom380_500 TripletVar_380 Angstrom500_870 more sgpcsphotppC1.00: Raw data stream - documentation not supported more sgpcsphotalmC1.00: Raw data stream - documentation not supported more sgpcsphotaotfiltqaC1.a1: Angstrom440_675 TripletVar_340 Angstrom440_675_Polar TripletVar_500 aot_870 TripletVar_870 aot_340 TripletVar_440 aot_1020 Angstrom380_500 aot_500 Angstrom500_870 WaterError TripletVar_1640 Angstrom440_870 TripletVar_380 aot_440 aot_1640 aot_670 TripletVar_1020 TripletVar_670 aot_380 pwv Angstrom340_440 more sgpcsphotalm1duboC1.a1: AOT_440 AOTExt673_T ASYM673_T AOTAbsp441_T size ASYM673_F ASYM673_C ASYM873_T SSA673_T SSA673_C ASYM873_C ASYM873_F SSA1022_T SSA673_F AOTExt673_C AOTExt673_F SSA1022_C sun_error SSA1022_F AOT_380 REFI_441 REFR_441 AOTAbsp873_C siz_index REFR_1022 EffRad_T AOTAbsp873_F AOTExt1022_F AOT_670 AOTAbsp873_T AOTExt1022_C EffRad_F EffRad_C tau440 REFI_1022 alpha440_870 ASYM1022_T AOT_1640 REFI_673 AOTExt1022_T REFR_673 AOTAbsp441_F ASYM1022_C ASYM1022_F AOTAbsp441_C ASYM441_T AOTExt441_T AOTAbsp673_T ASYM441_F StdDev_T ASYM441_C SSA441_T tail_level StdDev_C StdDev_F AOTAbsp1022_T AOT_1020 VolMedianRad_C AOTAbsp1022_F AOTAbsp1022_C AOTAbsp673_C AOTAbsp673_F AOT_340 AngstromParam870_440_AOT_Absp SSA873_C AOT_500 pwv SSA873_F VolMedianRad_F tail1 AOTExt873_F VolCon_T AOTExt873_C VolMedianRad_T AngstromParam870_440_AOT_Ext SSA441_F VolCon_F AOT_870 tail2 AOTExt873_T REFI_873 SSA441_C VolCon_C sky_error AOTExt441_C REFR_873 AOTExt441_F SSA873_T more sgpcsphotaotfiltC1.00: Raw data stream - documentation not supported more sgpcsphotpfn1C1.a1: tail2 tail1 sky_error sun_error tau440 siz_index alpha440_870 tail_level pfn_t more sgpcsphotsizeC1.00: Raw data stream - documentation not supported more sgpcsphotaotC1.00: Raw data stream - documentation not supported more

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