DQR ID | Subject | Data Streams Affected |
---|---|---|
D050105.1 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 |
D050201.2 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 |
D070313.3 | TWP/SONDE/C1 - Surface RH value incorrect | twpsondewnpnC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/30/2004 | 2330 | 12/31/2004 | 0108 |
Subject: | TWP/SONDE/C1 - Bad RH at beginning of sounding |
DataStreams: | twpsondewnpnC1.b1 |
Description: | It appears that the RH sensor heating circuit failed during this portion of the sounding (approximately between 0km and 11km). The RH oscillates rapidly between low (~5 %RH) and not so low (~70 %RH) and the oscillation seems to stop when the temperature is below ~40 degC. According to Vaisala these are symptoms of failure in the ASIC (application specific integrated circuit) that controls the heating. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/2005 | 2330 | 01/08/2005 | 0102 |
Subject: | TWP/SONDE/C1 - Bad RH at beginning of sounding |
DataStreams: | twpsondewnpnC1.b1 |
Description: | It appears that the RH sensor heating circuit failed during this portion of the sounding (approximately between 0km and 12km). The RH oscillates rapidly between low (~2 %RH) and not so low (~80 %RH) and the oscillation seems to stop when the temperature is below ~40 degC. According to Vaisala these are symptoms of failure in the ASIC (application specific integrated circuit) that controls the heating. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/08/2007 | 0000 | 03/08/2007 | 0001 |
Subject: | TWP/SONDE/C1 - Surface RH value incorrect |
DataStreams: | twpsondewnpnC1.b1 |
Description: | The surface RH value of 77% when the value should have been in the low 60's. It appears the observers did not allow the sonde to equilibrate to ambient conditions before collecting the surface data. This error also caused the dew point to be incorrect. |
Measurements: | twpsondewnpnC1.b1:
|