Data Quality Report

Data Quality Report for Order ID: 187581
User ID: mmaahn Date completed: 2017-09-06

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D140611.17	NSA/MPLCMASK/C1 - Reprocessing Notice (RID 1137)	nsa30smplcmask1zwangC1.c1	Note
D170802.4	NSA/MPLCMASK/C1 - Reprocess: Instrument correction error	nsa30smplcmask1zwangC1.c1	Suspect

DQR ID: D140611.17 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2006-09-29	00:00:00	2014-06-06	23:59:00	Note

Subject:	NSA/MPLCMASK/C1 - Reprocessing Notice (RID 1137)
Affected Datastreams:	nsa30smplcmask1zwangC1.c1
Description	See below for details of reprocessing that was completed on 20140807. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- Linear depolarization ratio calculation is incorrect in the VAP processing code.
Measurements	linear_depol_ratio (Linear depolarization ratio)

DQR ID: D170802.4 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2010-10-07	00:00:00	2017-07-25	23:59:59	Suspect

Subject:	NSA/MPLCMASK/C1 - Reprocess: Instrument correction error
Affected Datastreams:	nsa30smplcmask1zwangC1.c1
Description	Overlap and dead-time instrument corrections in the 30smplcmask1zwang VAP were not applied in the correct order. As a result, very high backscatter signals near 500 m can sometimes exceed the acceptable maximum signal for applying a dead-time correction. Regions, where the dead-time correction is not applied, appear as an artificial band or artifact. Cloud detection is not impacted by this issue.
Measurements	backscatter_snr (Signal to noise ratio of backscatter) linear_depol_ratio (Linear depolarization ratio) linear_depol_snr (Signal to noise ratio for the linear depolarization ratio) backscatter (Total attenuated backscatter)