DQR ID | Subject | Data Streams Affected |
---|---|---|
D100224.6 | GRW/MWR/M1 - Reprocess: Biased LWP retrievals-Updated retrieval coefficients | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D100402.3 | GRW/WACR/M1 - Coherence Filter Contamination | grwwacrM1.b1 |
D110118.2 | GRW/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration by Aircraft | grw30ecorM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2009 | 0000 | 03/31/2010 | 1700 |
Subject: | GRW/MWR/M1 - Reprocess: Biased LWP retrievals-Updated retrieval coefficients |
DataStreams: | grwmwrlosM1.b1, grwmwrtipM1.a1 |
Description: | Retrieval coefficients were updated to screen for some bad soundings |
Measurements: | grwmwrtipM1.a1:
grwmwrlosM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/09/2009 | 1600 | 04/02/2010 | 1200 |
Subject: | GRW/WACR/M1 - Coherence Filter Contamination |
DataStreams: | grwwacrM1.b1 |
Description: | The coherence filter (software) that was added to the WACR under BCR-01500 was causing occasional contamination to WACR data. This was exhibited in the first 2000 m of range by streaking in the data over a period of time. It didn't occur often and when it did, it is quite obvious looking at the plots. On 4/2/2010 at 12:00 UTC, the coherence filter was modified to preclude working on signals with a SNR greater than 60 dB. The vendor thinks this will solve the problem. |
Measurements: | grwwacrM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/15/2009 | 1530 | 10/11/2010 | 0800 |
Subject: | GRW/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration by Aircraft |
DataStreams: | grw30ecorM1.b1 |
Description: | Aircraft landings, departures, and running aircraft on the airport pad were found to produce spikes in the half hourly CO2 flux and small spikes in CO2 concentration on many days during the entire deployment of the AMF1 at GRW. This influence sometimes occurred multiple periods in a day; this was typical of the year of data. The spikes range from only several micromoles s-1 m-2 to one hundred or more for flux (a typical spike was in the twenties) and near zero to 1.0 mmoles m-3 for CO2 concentration (typically around 0.15). Occasionally an influence on water vapor density was detected, but this was fairly rare and usually of very small magnitude. |
Measurements: | grw30ecorM1.b1:
|