DQR ID | Subject | Data Streams Affected |
---|---|---|
D051101.5 | SGP/SURTHREF/C1 - Temperature and RH probe failure | sgpsurthrefC1.b1 |
D051123.3 | SGP/SURTHREF/C1 - Instrument failure on Vaisala probe 1 and probe 3. | sgpsurthrefC1.b1 |
D111122.1 | SGP/SURTHREF/C1 - Incorrect RH, sensor V1 | sgpsurthrefC1.b1 |
D120703.4 | SGP/SURTHREF/C1 - Sensors out of calibration | sgpsurthrefC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/20/2005 | 2127 | 10/18/2005 | 2038 |
Subject: | SGP/SURTHREF/C1 - Temperature and RH probe failure |
DataStreams: | sgpsurthrefC1.b1 |
Description: | Temperature and RH probe V1 were failing intermittently. |
Measurements: | sgpsurthrefC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/2005 | 0533 | 12/01/2005 | 2025 |
12/03/2005 | 0747 | 12/12/2005 | 1930 |
Subject: | SGP/SURTHREF/C1 - Instrument failure on Vaisala probe 1 and probe 3. |
DataStreams: | sgpsurthrefC1.b1 |
Description: | For the dates: 11/01/2005 - 12/01/2005 T/RH probe Vaisala #3 failed. RH data was missing and the temp data wass higher than other probes. Corrosion on the connectors caused the problem. For the dates: 12/03/05 - 12/12/2005 T/RH probe Vaisala #1 Temperatures were lower than other sensors and intermittently failed. A loose wire was found and corrected. |
Measurements: | sgpsurthrefC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/15/2011 | 0000 | 11/10/2011 | 1845 |
Subject: | SGP/SURTHREF/C1 - Incorrect RH, sensor V1 |
DataStreams: | sgpsurthrefC1.b1 |
Description: | Temp/RH sensor V1 RH was running high on a consistent basis. |
Measurements: | sgpsurthrefC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/2008 | 0000 | 07/02/2012 | 2045 |
Subject: | SGP/SURTHREF/C1 - Sensors out of calibration |
DataStreams: | sgpsurthrefC1.b1 |
Description: | In Nov. 2011, RH values were noticed to be out of agreement with each other. It was found that the sensors had not been through annual calibrations (some had not been calibrated since 2008). Beginning Dec. 2011, sensors were swapped and calibrated as needed. As of 7/2/2012, all 6 sensors are up to date on calibrations. V2 replaced 12/12/2011. V1/V3/R2 replaced as of 01/24/2011. R1 replaced 4/23/2012. R3 replaced 7/3/2012. |
Measurements: | sgpsurthrefC1.b1:
|