DQR ID | Subject | Data Streams Affected |
---|---|---|
D100715.3 | GRW/AOS/M1 - CCN Detector misalignment | grwaosccnM1.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 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/02/2010 | 1800 | 07/13/2010 | 1600 |
Subject: | GRW/AOS/M1 - CCN Detector misalignment |
DataStreams: | grwaosccnM1.a1 |
Description: | The CCN signal was unusually low about 100 particles/cc. The %SS growth curves were asymmetrical. Upon consultation with the manufacturer, DMT, it was predicted that the OPC detector was clogged or misaligned. I had the tech, Carlos, remove the detector and ship it back to Boulder. The detector was cleaned. An o-ring for a lens wasn't properly seated. The OPC was sent back to GRW and installed. Data looks normal after the reinstallation on July 13th. |
Measurements: | grwaosccnM1.a1:
|
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:
|