DQR ID | Subject | Data Streams Affected |
---|---|---|
D040127.3 | TWP/SONDE/C2 - Broken temperature sensors | twpsondewnpnC2.b1 |
D040421.1 | TWP/SMET/C2 - Wind Sensor failure | twpsmet60sC2.b1 |
D040425.1 | TWP/SONDE/C2 - Bad RH values aloft | twpsondewnpnC2.b1 |
D040711.2 | TWP/SONDE/C2 - RH sensor failure near surface | twpsondewnpnC2.b1 |
D040722.6 | TWP/SMET/C2 - All data missing due to logger change | twpsmet60sC2.b1 |
D040722.7 | TWP/SMET/C2 - connection and timing issues with new logger | twpsmet60sC2.b1 |
D040726.1 | TWP/SMET/C2 - Negative rainfall rates | twpsmet60sC2.b1 |
D040815.1 | TWP/SONDE/C2 - Operator used wrong calibration tape | twpsondewnpnC2.b1 |
D040824.2 | TWP/SMET/C2 - Incorrect rainrate equation used. | twpsmet60sC2.b1 |
D040921.1 | TWP/SONDE/C2 - RH sensor failure below 9km | twpsondewnpnC2.b1 |
D040921.2 | TWP/SONDE/C2 - Bad RH values aloft | twpsondewnpnC2.b1 |
D050301.1 | TWP/SMET/C2 - Instrument failure | twpsmet60sC2.b1 |
D050322.2 | TWP/SMET/C2 - Upper wind sensor failure | twpsmet60sC2.b1 |
D050601.5 | TWP/SMET/C2 - Reprocess: Incorrect Units Listed for Vapor Pressure | twpsmet60sC2.b1 |
D050714.1 | TWP/SMET/C2 - RH failure | twpsmet60sC2.b1 |
D050913.3 | TWP/SONDE/C2 - Bad RH sensor | twpsondewnpnC2.b1 |
D050920.4 | TWP/SMET/C2 - Instrument maintenance | twpsmet60sC2.b1 |
D050921.2 | TWP/SMET/C2 - ORG data incorrect | twpsmet60sC2.b1 |
D051005.6 | TWP/SMET/C2 - Tower down for calibration activities | twpsmet60sC2.b1 |
D051122.2 | TWP/SONDE/C2 - Broken temperature sensor | twpsondewnpnC2.b1 |
D051219.2 | TWP/SONDE/C2 - Broken temperature sensor | twpsondewnpnC2.b1 |
D060308.1 | TWP/SONDE/C2 - Broken temperature sensor | twpsondewnpnC2.b1 |
D060403.2 | TWP/SONDE/C2 - Broken temperature sensor | twpsondewnpnC2.b1 |
D060418.1 | TWP/SONDE/C2 - Bad RH in lower 8km | twpsondewnpnC2.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2003 | 0040 | 10/13/2003 | 0203 |
11/08/2003 | 2335 | 11/09/2003 | 0215 |
11/18/2003 | 1205 | 11/18/2003 | 1340 |
11/19/2003 | 1156 | 11/19/2003 | 1346 |
11/21/2003 | 0044 | 11/21/2003 | 0113 |
12/20/2003 | 1225 | 12/20/2003 | 1408 |
12/21/2003 | 0056 | 12/21/2003 | 0126 |
12/21/2003 | 1155 | 12/21/2003 | 1344 |
12/23/2003 | 0042 | 12/23/2003 | 0212 |
12/23/2003 | 1137 | 12/23/2003 | 1259 |
12/23/2003 | 2342 | 12/24/2003 | 0132 |
01/08/2004 | 1135 | 01/08/2004 | 1309 |
01/09/2004 | 1157 | 01/09/2004 | 1342 |
01/09/2004 | 1359 | 01/09/2004 | 1537 |
01/12/2004 | 2342 | 01/13/2004 | 0214 |
01/16/2004 | 1409 | 01/16/2004 | 1548 |
01/16/2004 | 2337 | 01/17/2004 | 0109 |
01/18/2004 | 1135 | 01/18/2004 | 1256 |
01/19/2004 | 0223 | 01/19/2004 | 0346 |
01/19/2004 | 2329 | 01/20/2004 | 0157 |
01/21/2004 | 1252 | 01/21/2004 | 1400 |
01/22/2004 | 0052 | 01/22/2004 | 0227 |
01/23/2004 | 1137 | 01/23/2004 | 1319 |
01/26/2004 | 1202 | 01/26/2004 | 0146 |
02/17/2004 | 1406 | 02/17/2004 | 1536 |
02/26/2004 | 1221 | 02/26/2004 | 1350 |
03/09/2004 | 1145 | 03/09/2004 | 1315 |
03/14/2004 | 1131 | 03/14/2004 | 1300 |
03/22/2004 | 1134 | 03/22/2004 | 1300 |
03/29/2004 | 2332 | 03/30/2004 | 0047 |
03/30/2004 | 2334 | 03/31/2004 | 0059 |
04/11/2004 | 2348 | 04/12/2004 | 0120 |
05/01/2004 | 2335 | 05/02/2004 | 0110 |
05/02/2004 | 2336 | 05/03/2004 | 0109 |
05/13/2004 | 2334 | 05/14/2004 | 0112 |
05/14/2004 | 1406 | 05/14/2004 | 1411 |
06/07/2004 | 0224 | 06/07/2004 | 0351 |
06/25/2004 | 1146 | 06/25/2004 | 1328 |
07/02/2004 | 0059 | 07/02/2004 | 0217 |
07/20/2004 | 0220 | 07/20/2004 | 0358 |
07/24/2004 | 1235 | 07/24/2004 | 1355 |
08/22/2004 | 1144 | 08/22/2004 | 1207 |
09/08/2004 | 1425 | 09/08/2004 | 1605 |
09/08/2004 | 2338 | 09/08/2004 | 2345 |
10/18/2004 | 2346 | 10/19/2004 | 0128 |
11/29/2004 | 2321 | 11/30/2004 | 0105 |
12/08/2004 | 1143 | 12/08/2004 | 1306 |
12/30/2004 | 1130 | 12/30/2004 | 1239 |
Subject: | TWP/SONDE/C2 - Broken temperature sensors |
DataStreams: | twpsondewnpnC2.b1 |
Description: | The temperature sensors on these radiosondes broke after launch. All temperature-related data are incorrect. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/10/2004 | 0000 | 04/24/2004 | 2303 |
Subject: | TWP/SMET/C2 - Wind Sensor failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | Wind sensor #2 (lower one) failed. Wind direction showed little or no variation, unlike the colocated sensor #1. This caused lower wind speed values as the sensor was not rotating properly to orient itself parallel to the wind stream. The sensor was replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/21/2004 | 1232 | 04/21/2004 | 1248 |
Subject: | TWP/SONDE/C2 - Bad RH values aloft |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears that the RH sensor heating circuit on this sonde failed about 24 minutes into the flight. The RH values look reasonable, though somewhat noisy, from the surface to approximately 6.9 km (439 hPa) at which point they begin to oscillate between 0 and 100 %. This behavior stops when the sonde reaches approximately 11.5km (232 hPa) when the air temperature drops below -40 degC. The oscillation stops at that point, though the RH remains higher than might be expected even under supersaturated conditions. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/10/2004 | 1238 | 07/10/2004 | 1315 |
Subject: | TWP/SONDE/C2 - RH sensor failure near surface |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears that the RH sensor heating circuit failed during this sounding. The RH oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems to stop when the temperature is below ~35 degC. According to Vaisala these are symptoms of failure in the ASIC (application specific integrated circuit) that controls the heating. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2004 | 2003 | 07/07/2004 | 0137 |
Subject: | TWP/SMET/C2 - All data missing due to logger change |
DataStreams: | twpsmet60sC2.b1 |
Description: | All data are missing at this site during this time period due to collection system, logger and enclosure change. Data resumed after change. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/07/2004 | 0138 | 07/07/2004 | 2018 |
Subject: | TWP/SMET/C2 - connection and timing issues with new logger |
DataStreams: | twpsmet60sC2.b1 |
Description: | Atmospheric pressure data are intermittent during this time period due to connection problems and program timing issues with new logger installation. Data resumed normal operations after this time period. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/21/1998 | 0311 | 07/06/2004 | 0138 |
Subject: | TWP/SMET/C2 - Negative rainfall rates |
DataStreams: | twpsmet60sC2.b1 |
Description: | Due to limitations of the Zeno dataloggers all voltage measurements from the optical rain gauge (ORG) were converted to rainfall rates. This resulted in negative values for rain rates. Any value below 0.10 mm/hr should be considered to be 0 mm/hr. New dataloggers alleviated this problem. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/12/2004 | 0044 | 08/12/2004 | 0233 |
Subject: | TWP/SONDE/C2 - Operator used wrong calibration tape |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears as though the opperator used the wrong calibration tape for this sounding. The primary symptom is a jump in temperature from a surface value of 30.1 degC to the first value aloft of 61.0 degC. Secondly, the recorded serial number for this sounding is Z1430179 which is the same serial number recorded for the previous sounding. This problem points to three failures of procedure (I have notified TWP site ops by e-mail). The first failure is using the wrong tape. The second failure is not checking the radiosonde values before launch which relates to the third failure of not entering the radiosonde values as the surface values of the sounding. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/07/2004 | 0137 | 08/17/2004 | 2157 |
Subject: | TWP/SMET/C2 - Incorrect rainrate equation used. |
DataStreams: | twpsmet60sC2.b1 |
Description: | There are two different Optical Raingages in use at the TWP sites. The incorrect equation was used at this site. The incorrect equation is (25*(V^1.87)) - 0.15. The correct equation is (20*(V^2)) - 0.05. The correct equation was installed. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/16/2004 | 1135 | 09/16/2004 | 1210 |
Subject: | TWP/SONDE/C2 - RH sensor failure below 9km |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears that the RH sensor heating circuit failed during this sounding. The RH oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems to stop when the temperature is below ~35 degC. According to Vaisala these are symptoms of failure in the ASIC (application specific integrated circuit) that controls the heating. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/17/2004 | 1145 | 09/17/2004 | 1216 |
09/18/2004 | 0058 | 09/18/2004 | 0133 |
09/19/2004 | 1408 | 09/19/2004 | 1447 |
Subject: | TWP/SONDE/C2 - Bad RH values aloft |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears that the RH sensor heating circuit on these sondes failed after launch but resume proper operation when the ambient temperature dropped below ~40 degC. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/12/2005 | 1955 | 03/03/2005 | 0430 |
Subject: | TWP/SMET/C2 - Instrument failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | Upper wind sensor failed. Wind direction was reported at a near constant value of 69 degrees and was significantly different than the lower wind sensor's direction values. Sensor replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/09/2005 | 2300 | 04/17/2005 | 0332 |
Subject: | TWP/SMET/C2 - Upper wind sensor failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | After replacement on 03/03/2005 the upper wind sensor began reporting erroneous values again on 03/09/2005 becoming very apparent after 03/17/2005. Wind speed data appears reasonable but the wind direction data do not agree well with the lower wind sensor. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/07/2004 | 0000 | 05/19/2005 | 2359 |
Subject: | TWP/SMET/C2 - Reprocess: Incorrect Units Listed for Vapor Pressure |
DataStreams: | twpsmet60sC2.b1 |
Description: | The netcdf header file incorrectly listed the units of Vapor Pressure as hPa when in fact they were kPa. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/10/2005 | 1900 | 07/14/2005 | 2226 |
Subject: | TWP/SMET/C2 - RH failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | The RH values were frequently over MAX value of 104% starting on 7/10/2005 through end of period. Sensor was replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/03/2005 | 2350 | 07/04/2005 | 0024 |
07/10/2005 | 2340 | 07/11/2005 | 0021 |
07/19/2005 | 2332 | 07/20/2005 | 0016 |
Subject: | TWP/SONDE/C2 - Bad RH sensor |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears that the RH sensor heating circuit failed during this sounding. The RH oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems to stop when the temperature is below -50 degC. According to Vaisala these are symptoms of failure in the ASIC (application specific integrated circuit) that controls the heating. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/21/2005 | 1625 | 09/21/2005 | 1815 |
Subject: | TWP/SMET/C2 - Instrument maintenance |
DataStreams: | twpsmet60sC2.b1 |
Description: | Instrument calibration and testing were taking place for brief periods. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/19/2005 | 0809 | 09/19/2005 | 1902 |
Subject: | TWP/SMET/C2 - ORG data incorrect |
DataStreams: | twpsmet60sC2.b1 |
Description: | Data from the ORG was incorrect due to heavy condensation on the lens. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/19/2005 | 0200 | 09/19/2005 | 0330 |
Subject: | TWP/SMET/C2 - Tower down for calibration activities |
DataStreams: | twpsmet60sC2.b1 |
Description: | Tower lowered, wind vanes spun at different frequencies, and ORG tested with electronic rain. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/19/2005 | 2334 | 11/20/2005 | 0153 |
11/21/2005 | 2332 | 11/22/2005 | 0140 |
Subject: | TWP/SONDE/C2 - Broken temperature sensor |
DataStreams: | twpsondewnpnC2.b1 |
Description: | The temperature sensor on this radiosonde broke after launch. All the temperature-related data are incorrect. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/07/2005 | 1153 | 12/07/2005 | 1323 |
Subject: | TWP/SONDE/C2 - Broken temperature sensor |
DataStreams: | twpsondewnpnC2.b1 |
Description: | The temperature sensor on this radiosonde broke after launch. All the temperature-related data are incorrect. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/15/2006 | 1144 | 01/15/2006 | 1328 |
01/19/2006 | 1318 | 01/19/2006 | 1320 |
01/22/2006 | 1149 | 01/22/2006 | 1315 |
02/14/2006 | 0055 | 02/14/2006 | 0207 |
02/21/2006 | 0232 | 02/21/2006 | 0359 |
Subject: | TWP/SONDE/C2 - Broken temperature sensor |
DataStreams: | twpsondewnpnC2.b1 |
Description: | The temperature sensor on this radiosonde broke after launch. All the temperature-related data are incorrect. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/27/2006 | 0043 | 03/27/2006 | 0208 |
Subject: | TWP/SONDE/C2 - Broken temperature sensor |
DataStreams: | twpsondewnpnC2.b1 |
Description: | The temperature sensor on this radiosonde broke after launch. All the temperature-related data are incorrect. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/10/2006 | 0247 | 04/10/2006 | 0314 |
Subject: | TWP/SONDE/C2 - Bad RH in lower 8km |
DataStreams: | twpsondewnpnC2.b1 |
Description: | It appears that the RH sensor heating circuit failed during this sounding. The RH oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems to stop when the temperature is below ~35 degC. According to Vaisala these are symptoms of failure in the ASIC (application specific integrated circuit) that controls the heating. |
Measurements: | twpsondewnpnC2.b1:
|