DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D001218.1 | SGP/SONDE/B1 - Incorrect surface temperature | sgpsondewnpnB1.a1 | Incorrect |
D001221.3 | SGP/SONDE/B1 - Bad sounding data (incorrect calibration?) | sgpsondewnpnB1.a1 | Incorrect |
D021121.2 | SGP/SONDE/B1 - Temperature sensor failed | sgpsondewnpnB1.a1 | Incorrect |
D021229.1 | TWP/SONDE/C1 - Broken Temperature Sensor | twpsondewnpnC1.b1 | Incorrect |
D021231.2 | TWP/Sonde/C1 - Bad RH Values | twpsondewnpnC1.b1 | Suspect |
D030427.2 | TWP/SONDE/C1 - Questionable RH | twpsondewnpnC1.b1 | Suspect |
D030503.1 | TWP/SONDE/C1 - Bad RH | twpsondewnpnC1.b1 | Suspect |
D030603.3 | TWP/SONDE/C1 - Broken temperature sensor | twpsondewnpnC1.b1 | Incorrect |
D040228.1 | TWP/SONDE/C1 - Broken temperature sensor | twpsondewnpnC1.b1 | Incorrect |
D040228.3 | TWP/SONDE/C1 - Bad RH sensors | twpsondewnpnC1.b1 | Suspect |
D040530.1 | TWP/SONDE/C1 - Bad RH sensor | twpsondewnpnC1.b1 | Suspect |
D040606.1 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 | Suspect |
D040627.1 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 | Suspect |
D040627.2 | TWP/SONDE/C1 - Bad RH in short interval aloft | twpsondewnpnC1.b1 | Incorrect |
D040711.1 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 | Suspect |
D041011.3 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 | Incorrect |
D050105.1 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 | Suspect |
D050201.2 | TWP/SONDE/C1 - Bad RH at beginning of sounding | twpsondewnpnC1.b1 | Suspect |
D070313.3 | TWP/SONDE/C1 - Surface RH value incorrect | twpsondewnpnC1.b1 | Incorrect |
D090629.3 | TWP/SONDE/C1 - Wind data missing | twpsondewnpnC1.b1 | Missing |
D140513.5 | TWP/SONDE/C1 - Reprocessing Notice (RID 1122) | twpsondewnpnC1.b1 | Does not affect quality |
D140520.2 | TWP/SONDE/C1 - Reprocessing Notice (RID 1126) | twpsondewnpnC1.b1 | Does not affect quality |
D990124.2 | SGP/SONDE - Dry bias in sonde RH | sgpsondewnpnB1.a1 | Suspect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/12/2000 | 2330 | 12/12/2000 | 2330 | Incorrect |
Subject: | SGP/SONDE/B1 - Incorrect surface temperature |
DataStreams: | sgpsondewnpnB1.a1 |
Description: | The operator entered 8.1 degC as the surface temperature for this sounding instead of -8.1 degC. This is the only value affected. |
Measurements: | sgpsondewnpnB1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/16/2000 | 1430 | 12/16/2000 | 1700 | Incorrect |
Subject: | SGP/SONDE/B1 - Bad sounding data (incorrect calibration?) |
DataStreams: | sgpsondewnpnB1.a1 |
Description: | I'm not sure what happened here but the temperature data for this sounding clearly are wrong. Along with the missing humidity data and the problems the operator reported with his previous sounding it looks as if all the data in this file are bad. It may be that the sensor was damaged at launch (it was very windy). |
Measurements: | sgpsondewnpnB1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/18/2002 | 2043 | 11/18/2002 | 2229 | Incorrect |
Subject: | SGP/SONDE/B1 - Temperature sensor failed |
DataStreams: | sgpsondewnpnB1.a1 |
Description: | It appears that the temperature sensor on this sonde broke shortly after launch with the effect that the temperatures read approximately 30 degC too low. Other measurements that do not rely on the temperature, for example pressure and wind velocity, should be OK. |
Measurements: | sgpsondewnpnB1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/14/2003 | 2330 | 06/15/2003 | 0147 | Incorrect |
09/18/2002 | 2334 | 09/19/2002 | 0111 | Incorrect |
10/13/2002 | 1139 | 10/13/2002 | 1303 | Incorrect |
09/21/2002 | 2330 | 09/22/2002 | 0059 | Incorrect |
06/28/2003 | 2330 | 06/29/2003 | 0056 | Incorrect |
05/23/2003 | 2330 | 05/24/2003 | 0135 | Incorrect |
10/18/2002 | 2358 | 10/19/2002 | 0113 | Incorrect |
06/29/2003 | 1134 | 06/29/2003 | 1312 | Incorrect |
06/25/2003 | 2342 | 06/26/2003 | 0118 | Incorrect |
06/23/2003 | 1146 | 06/23/2003 | 1323 | Incorrect |
10/01/2002 | 2349 | 10/02/2002 | 0117 | Incorrect |
06/22/2003 | 1159 | 06/22/2003 | 1332 | Incorrect |
06/22/2003 | 2349 | 06/23/2003 | 0110 | Incorrect |
Subject: | TWP/SONDE/C1 - Broken Temperature Sensor |
DataStreams: | twpsondewnpnC1.b1 |
Description: | The temperature sensor on these radiosondes broke after launch. All the temperature related data are incorrect. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/21/2002 | 2336 | 12/22/2002 | 0119 | Suspect |
Subject: | TWP/Sonde/C1 - Bad RH Values |
DataStreams: | twpsondewnpnC1.b1 |
Description: | The RH values from the surface to approximately 11.5 km oscillate between reasonable values and zero. This is apparently caused by a failure in the RH sensor heating process. Although the oscillation stops when the heating stops (at temperatures below ~ -45degC) I think the values must be viewed as suspect. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/08/2003 | 2347 | 04/09/2003 | 0003 | Suspect |
Subject: | TWP/SONDE/C1 - Questionable RH |
DataStreams: | twpsondewnpnC1.b1 |
Description: | It appears that the RH sensor heating circuit failed during this portion of the sounding (approximately between 5km and 10km). The RH oscillates rapidly between low (~5 %RH) and not so low (~50 %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: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/29/2003 | 1123 | 04/29/2003 | 1205 | Suspect |
Subject: | TWP/SONDE/C1 - Bad RH |
DataStreams: | twpsondewnpnC1.b1 |
Description: | The RH sensor heating circuit failed on this radiosonde. The RH-related values obtained between 0 and 10000 meters oscillate between near-zero and reasonable ambient values. Above 10000 the RH values are likely correct. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/23/2003 | 2330 | 05/24/2003 | 0135 | Incorrect |
Subject: | TWP/SONDE/C1 - Broken temperature sensor |
DataStreams: | twpsondewnpnC1.b1 |
Description: | The temperature sensor on this radiosonde broke after launch. All the temperature-related data are incorrect. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/28/2004 | 2336 | 10/29/2004 | 0057 | Incorrect |
05/07/2004 | 1132 | 05/07/2004 | 1315 | Incorrect |
07/22/2004 | 2355 | 07/23/2004 | 0140 | Incorrect |
08/14/2004 | 2330 | 08/15/2004 | 0104 | Incorrect |
08/22/2004 | 2335 | 08/23/2004 | 0105 | Incorrect |
04/22/2004 | 1156 | 04/22/2004 | 1317 | Incorrect |
07/10/2004 | 1130 | 07/11/2004 | 1255 | Incorrect |
11/28/2004 | 2352 | 11/29/2004 | 0044 | Incorrect |
02/09/2004 | 1133 | 02/09/2004 | 1233 | Incorrect |
02/07/2004 | 2342 | 02/08/2004 | 0115 | Incorrect |
09/14/2004 | 2328 | 09/14/2004 | 2329 | Incorrect |
04/30/2004 | 2336 | 05/01/2004 | 0112 | Incorrect |
04/29/2004 | 1137 | 04/29/2004 | 1312 | Incorrect |
07/26/2004 | 2341 | 07/27/2004 | 0115 | Incorrect |
04/24/2004 | 1130 | 04/24/2004 | 1312 | Incorrect |
05/05/2004 | 1135 | 05/05/2004 | 1319 | Incorrect |
05/18/2004 | 1130 | 05/18/2004 | 1321 | Incorrect |
05/11/2004 | 1142 | 05/11/2004 | 1311 | Incorrect |
05/12/2004 | 1145 | 05/12/2004 | 1206 | Incorrect |
05/03/2004 | 2331 | 05/04/2004 | 0105 | Incorrect |
04/05/2004 | 2332 | 04/06/2004 | 0105 | Incorrect |
09/17/2004 | 2332 | 09/18/2004 | 0102 | Incorrect |
07/13/2004 | 1139 | 07/13/2004 | 1320 | Incorrect |
09/05/2004 | 2340 | 09/06/2004 | 0119 | Incorrect |
07/16/2004 | 2346 | 07/17/2004 | 0107 | Incorrect |
Subject: | TWP/SONDE/C1 - Broken temperature sensor |
DataStreams: | twpsondewnpnC1.b1 |
Description: | The temperature sensor on these radiosondes broke after launch All the temperature-related data are incorrect. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/06/2004 | 2341 | 02/07/2004 | 0133 | Suspect |
Subject: | TWP/SONDE/C1 - Bad RH sensors |
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 in a 20% range and the oscillation seems to stop when the temperature is below ~45 degC. 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 | Data Quality Metric |
---|---|---|---|---|
05/28/2003 | 2330 | 05/29/2003 | 0010 | Suspect |
Subject: | TWP/SONDE/C1 - Bad RH sensor |
DataStreams: | twpsondewnpnC1.b1 |
Description: | It appears that the RH sensor heating circuit failed during this portion of the sounding (approximately between the surface and 11km). The RH oscillates rapidly between low (~0 %RH) and high (~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 | Data Quality Metric |
---|---|---|---|---|
06/03/2004 | 1132 | 06/03/2004 | 1212 | Suspect |
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 (~15 %RH) and not so low (~50 %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 | Data Quality Metric |
---|---|---|---|---|
06/04/2004 | 0010 | 06/23/2004 | 2330 | Suspect |
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 (~0 %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 | Data Quality Metric |
---|---|---|---|---|
06/21/2004 | 0010 | 06/21/2004 | 0011 | Incorrect |
Subject: | TWP/SONDE/C1 - Bad RH in short interval aloft |
DataStreams: | twpsondewnpnC1.b1 |
Description: | It appears that the RH sensor heating circuit on this sonde failed about 31 minutes into the flight. The RH values look reasonable from the surface to approximately 8.25 km at which point they begin to oscillate between 0 and 40%. This behavior stops when the sonde reaches approximately 11.0km 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: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/30/2004 | 1130 | 06/30/2004 | 1204 | Suspect |
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 (~2 %RH) and not so low (~90 %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 | Data Quality Metric |
---|---|---|---|---|
10/08/2004 | 1131 | 10/08/2004 | 1200 | Incorrect |
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 (~1 %RH) and high (~80 %RH). 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 | Data Quality Metric |
---|---|---|---|---|
12/30/2004 | 2330 | 12/31/2004 | 0108 | Suspect |
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 | Data Quality Metric |
---|---|---|---|---|
01/07/2005 | 2330 | 01/08/2005 | 0102 | Suspect |
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 | Data Quality Metric |
---|---|---|---|---|
03/08/2007 | 0000 | 03/08/2007 | 0001 | Incorrect |
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 | Data Quality Metric |
---|---|---|---|---|
06/21/2009 | 1100 | 06/24/2009 | 1100 | Missing |
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:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/26/2014 | 0342 | 04/26/2014 | 0524 | Does not affect quality |
Subject: | TWP/SONDE/C1 - Reprocessing Notice (RID 1122) |
DataStreams: | twpsondewnpnC1.b1 |
Description: | See below for details of reprocessing that was completed on 20140708. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- The operator input an incorrect surface value for relative humidity. The corrected raw and ptu files need to be reprocessed. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/18/2014 | 2331 | 05/19/2014 | 0114 | Does not affect quality |
Subject: | TWP/SONDE/C1 - Reprocessing Notice (RID 1126) |
DataStreams: | twpsondewnpnC1.b1 |
Description: | See below for details of reprocessing that was completed on 20140708. Original DQR category: 4 (Red, Incorrect). ---------------------------------------------------------- Operator entered incorrect surface relative humidity value. |
Measurements: | twpsondewnpnC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/27/1992 | 0000 | 05/31/2002 | 2359 | Suspect |
Subject: | SGP/SONDE - Dry bias in sonde RH |
DataStreams: | sgpsondewnpnB1.a1 |
Description: | Vaisala has confirmed ARM findings of an apparent dry bias in the relative humidity measured by RS-80H radiosondes. The cause of the dry bias is thought to be contamination of the humidity sensor by volatile organic substances originating from some plastic parts of the radiosonde. The amount of contamination is a function of the time between the date of sonde manufacture and its use. All RS-80H sondes manufactured before week 34 of 1998 will show this bias. After week 34 of 1998 Vaisala changed its packaging to reduce, but not eliminate the contamination problem. Starting with RS-80 radiosonde manufactured in late June 2000 Vaisala enclosed the sensor boom in an inert plastic shield, thereby eliminating the contamination that caused the dry bias. Starting in May 2001 at the SGP, May 2002 at the TWP, and later 2002 at the NSA, ARM has moved to using RS-90 radiosondes. These sondes are not subject to the contaminatino that caused the dry bias. Vaisala is in the process of developing an algorithm that can be used to estimate the correct RH from knowledge of the sonde age. All of the ARM sounding data have sufficient metadata available to apply the correction. Additionally, ARM has funded a Science Team effort (Milosevich) to develop a 'best' correction algorithm for the RS-80 radiosonde humidity data. When completed this algorithm will allow us to reprocess the accumulated RS-80 data and produce a new data platform with what we hope will be more accurate data. |
Measurements: | sgpsondewnpnB1.a1:
|