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 |
D090629.3 | TWP/SONDE/C1 - Wind data missing | 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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/21/2009 | 1100 | 06/24/2009 | 1100 |
Subject: | TWP/SONDE/C1 - Wind data missing |
DataStreams: | twpsondewnpnC1.b1 |
Description: | A GPS problem associated with Vaisala BBSS ground station software issues caused the ground stations to enter into an error state when using GPS wind finding. In some instances, the flight was aborted due to the error state and not data was collected. A workaround was developed to allow sondes to be launched without collecting wind data. |
Measurements: | twpsondewnpnC1.b1:
|