DQR ID | Subject | Data Streams Affected |
---|---|---|
D060928.4 | NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry | nsasondewnpnC1.b1 |
D061011.1 | NSA/SONDE/C1 - Incorrect surface values of T and RH | nsasondewnpnC1.b1 |
D061114.3 | NSA/SONDE/C1 - RH sensor failure | nsasondewnpnC1.b1 |
D070124.1 | NSA/SONDE/C1 - Incorrect surface RH value | nsasondewnpnC1.b1 |
D070302.1 | NSA/SONDE/C1 - Temperature sensor broke at launch | nsasondewnpnC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/2006 | 0500 | 12/31/9999 | 2359 |
Subject: | NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry |
DataStreams: | nsasondewnpnC1.b1 |
Description: | The output precision of the following variables was increased 20060929: alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data. |
Measurements: | nsasondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/07/2006 | 0524 | 10/07/2006 | 0525 |
Subject: | NSA/SONDE/C1 - Incorrect surface values of T and RH |
DataStreams: | nsasondewnpnC1.b1 |
Description: | The radiosonde was launched too quickly after being removed from the ground check set. As a result, the system did not equilibrate with the local ground conditions and the automatically entered surface values are incorrect. |
Measurements: | nsasondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/28/2006 | 0532 | 10/28/2006 | 0710 |
Subject: | NSA/SONDE/C1 - RH sensor failure |
DataStreams: | nsasondewnpnC1.b1 |
Description: | It appears that one of the two RH sensors on this radiosonde was affected by ice after emerging from a low cold cloud. As a result the reported RH values oscillate by about 10 percent until the alternate heating cycle stops. I suspect the lower value is more close to correct, but can't be absolutely sure. |
Measurements: | nsasondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/29/2006 | 0517 | 12/29/2006 | 0518 |
Subject: | NSA/SONDE/C1 - Incorrect surface RH value |
DataStreams: | nsasondewnpnC1.b1 |
Description: | For an unknown reason the surface RH was reported a 0%. Becuase these values are entered automatically by the system, this is NOT likely an operator error. Examination of the raw data shows that the surface RH at launch time was approximately 81.2 %RH. |
Measurements: | nsasondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/27/2007 | 1955 | 02/27/2007 | 2131 |
Subject: | NSA/SONDE/C1 - Temperature sensor broke at launch |
DataStreams: | nsasondewnpnC1.b1 |
Description: | The temperature sensor on this sonde broke at launch. As a result all the thermodynamic data are incorrect. The wind data are OK, though there will be some uncertainty in the altitude values. This sounding was done at a non-standard time and it isn't clear whether it was delayed for some reason or a RHUBC sounding. In either case, there is no fix. |
Measurements: | nsasondewnpnC1.b1:
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