DQR ID | Subject | Data Streams Affected |
---|---|---|
D090522.1 | GRW/MWR/M1 - Loose mirror | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D100224.6 | GRW/MWR/M1 - Reprocess: Biased LWP retrievals-Updated retrieval coefficients | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D100326.2 | GRW/MWR/M1 - Incorrect ambient temperature | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D100716.1 | GRW/MWR/M1 - Incorrect instrument computer set-up | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D100830.1 | GRW/MWR/M1 - Erratic brightness temperature | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D100830.3 | GRW/MWR/M1 - Missing data | grwmwrlosM1.b1, grwmwrtipM1.a1 |
D110512.1 | GRW/MWRHF/M1 - Incorrect surface temp and RH | grwmwrhfM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2009 | 0000 | 06/16/2009 | 0745 |
Subject: | GRW/MWR/M1 - Loose mirror |
DataStreams: | grwmwrlosM1.b1, grwmwrtipM1.a1 |
Description: | The data from the MWR were suspicious and became progressively worse. The problem was traced back to the fact that the screw that keeps the mirror in place had become loose and the mirror was freely rotating. The mirror was tightened on 6/9/2009, however the measurements were noisy until 6/16, when the instrument was rebooted and all the connections checked. Measurements between 5/1 and 6/9 should not be used. Data between 6/9 and 6/16 are usable, although they are very noisy. |
Measurements: | grwmwrtipM1.a1:
grwmwrlosM1.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 |
---|---|---|---|
02/09/2010 | 1048 | 02/11/2010 | 1045 |
Subject: | GRW/MWR/M1 - Incorrect ambient temperature |
DataStreams: | grwmwrlosM1.b1, grwmwrtipM1.a1 |
Description: | The ambient temperature readings are incorrect. Problem appeared to have started around 10:48 GMT on 02/09, but was not really noticeable until slightly after 11 GMT, when tkair values dipped considerably. The dewblower was replaced on 2/11 and temperature readings returned to normal. |
Measurements: | grwmwrtipM1.a1:
grwmwrlosM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/11/2010 | 1800 | 08/09/2010 | 1400 |
Subject: | GRW/MWR/M1 - Incorrect instrument computer set-up |
DataStreams: | grwmwrlosM1.b1, grwmwrtipM1.a1 |
Description: | Starting late on 07/11 the instrument began to have very brief (< 1 min) data outages every few hours. By 07/12 data had become noticeably incorrect, particularly the PWV, LWP, TB23, and TB31. At ~17 Z on 0713 the missing data / no data available flags became more frequent. The problem was identified as improper settings of the instrument computer and was solved on 8/9. |
Measurements: | grwmwrtipM1.a1:
grwmwrlosM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/20/2010 | 1200 | 08/09/2010 | 1400 |
Subject: | GRW/MWR/M1 - Erratic brightness temperature |
DataStreams: | grwmwrlosM1.b1, grwmwrtipM1.a1 |
Description: | Around 12 Z on 7/20 both the PWV and 23.8 GHz brightness temp values began to diverge from those of the MWRP. By 7/22 both the LWP and 31.4 GHz brightness temp had followed suit. At 0600 Z on 7/22 multiple (10-20), brief (<=1 min) data outages began appearing hourly. The problem persisted intermittently until 8/9. On 8/9, changes in the settings of the computer restored the proper functionality of the MWR software. |
Measurements: | grwmwrtipM1.a1:
grwmwrlosM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/04/2010 | 1600 | 07/06/2010 | 1400 |
Subject: | GRW/MWR/M1 - Missing data |
DataStreams: | grwmwrlosM1.b1, grwmwrtipM1.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | grwmwrtipM1.a1:
grwmwrlosM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/06/2010 | 0000 | 01/06/2011 | 0800 |
Subject: | GRW/MWRHF/M1 - Incorrect surface temp and RH |
DataStreams: | grwmwrhfM1.b1 |
Description: | The surface temperature and surface relative humidity did not compare well with the co-located MET system. The temperature was not too different than the MET system, but trended differently. The MWRHF RH values were often 20% or greater different and trended inversely. |
Measurements: | grwmwrhfM1.b1:
|