Data Quality Report

Data Quality Report for Order ID: 186937
User ID: allisonm Date completed: 2017-07-27

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D101020.5	NSA/AOS/X1 - Data processing problem	nsaaosX1.a1	Note

DQR ID: D101020.5 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2009-01-01	00:00:00	2009-12-31	00:00:00	Note

Subject:	NSA/AOS/X1 - Data processing problem
Affected Datastreams:	nsaaosX1.a1
Description	The AOS data was reprocessed for the AMF, SGP and NSA sites. There was an error in the processing of the corrections for the PSAP absorption signal such that a low pass filter was implemented for the scattering data used in these corrections.The difference between the corrected and previous data is < 0.05 Mm-1 (below the instrument detection limit) and should not have a significant effect on the previous data.Data will be reprocessed at a later time when more significant changes to the data processing are implemented.
Measurements	Ba_G_Dry_1um_PSAP1W_1 (Aerosol light absorption coefficient, green channel, 1 um particle diameter) Ba_R_Dry_1um_PSAP3W_1 (Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut) Ba_B_Dry_1um_PSAP3W_1 (Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut) Ba_G_Dry_1um_PSAP3W_1 (Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut) Ba_G_Dry_10um_PSAP1W_1 (Aerosol light absorption coefficient, green channel, 10 um particle diameter) Ba_B_Dry_10um_PSAP3W_1 (Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut) Ba_G_Dry_10um_PSAP3W_1 (Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut) Ba_R_Dry_10um_PSAP3W_1 (Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut)