DQR ID | Subject | Data Streams Affected |
---|---|---|
D060509.1 | TWP/GNDRAD/C3 - IRT failed | twpgndrad60sC3.b1 |
D060823.1 | TWP/GNDRAD/C3 - IRT bias | twpgndrad60sC3.b1 |
D070110.1 | TWP/GNDRAD/C2 - IRT signal | twpgndrad60sC2.b1 |
D070406.6 | TWP/GNDRAD/C2 - Reprocess: IRT calibration | twpgndrad60sC2.b1 |
D071204.1 | TWP/GNDRAD/C2 - Reprocessed: Incorrect calibration | twpgndrad20sC2.a0, twpgndrad60sC2.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/07/2006 | 0000 | 05/18/2006 | 2359 |
Subject: | TWP/GNDRAD/C3 - IRT failed |
DataStreams: | twpgndrad60sC3.b1 |
Description: | The IRT began to fail on 4/7/2006 and failed completely (apparently due to the internal power supply) on 4/27. It was replaced on 5/18. |
Measurements: | twpgndrad60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/19/2006 | 0000 | 06/27/2006 | 0344 |
Subject: | TWP/GNDRAD/C3 - IRT bias |
DataStreams: | twpgndrad60sC3.b1 |
Description: | The IRT reported higher surface temperatures than the PIR due to corrosion on the terminals of the lightning protection module and a ground wire error. The corrosion was cleaned and the wiring corrected. |
Measurements: | twpgndrad60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/2006 | 0400 | 02/04/2007 | 2316 |
Subject: | TWP/GNDRAD/C2 - IRT signal |
DataStreams: | twpgndrad60sC2.b1 |
Description: | When the other GNDRAD radiometers were replaced on 12/3/2006, the quality of the IRT signal began to degrade until 12/26 when it became unusable. The instrument was replaced on 2/4/2007. |
Measurements: | twpgndrad60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/04/2007 | 2317 | 02/17/2007 | 0400 |
Subject: | TWP/GNDRAD/C2 - Reprocess: IRT calibration |
DataStreams: | twpgndrad60sC2.b1 |
Description: | The configuration of the IRT was set to that used at TWP/C3. This caused the calibration of the data to be wrong. It was corrected by reconfiguring the IRT to match the datalogger program. These data can be reprocessed and corrected by adding 10K, i.e. sfc_ir_temp(new) = sfc_ir_temp(old) + 10K. |
Measurements: | twpgndrad60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2007 | 2202 | 11/30/2007 | 1724 |
Subject: | TWP/GNDRAD/C2 - Reprocessed: Incorrect calibration |
DataStreams: | twpgndrad20sC2.a0, twpgndrad60sC2.b1 |
Description: | The Gndrad PSP was changed out 11/25 but the datalogger program was not updated until 11/30. PSP #31293 installed 20071125.2202. Correct calibration coefficient = 123.46. Reprocessed to correct upwelling shortwave hemispheric irradiance (US) by: US(new) = (US(old) / 123.56 ) * 123.46 Reprocessing completed March 2008. |
Measurements: | twpgndrad60sC2.b1:
twpgndrad20sC2.a0:
|