DQR ID | Subject | Data Streams Affected |
---|---|---|
D020905.4 | SGP/IRT10m/C1 - Reprocess: IRT insufficiently insulated | sgpirt10mC1.b1 |
D060414.6 | SGP/IRT/C1 - changed output range for new datalogger | sgpirt10mC1.a1, sgpirt10mC1.b1 |
D060828.2 | SGP/IRT/C1 - UPS failing | sgpirt10mC1.b1 |
D120113.6 | SGP/IRT/C1 - Noisy 10m IRT data | sgpirt10mC1.b1 |
D121022.1 | SGP/IRT/C1 - Measurement range | sgpirt10mC1.b1, sgpirt25mC1.b1 |
D130211.1 | SGP/IRT/C1 - 10m IRT ground surface temperature | sgpirt10mC1.b1 |
D130806.2 | SGP/IRT/C1 - Noisy data | sgpirt10mC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/19/1997 | 0000 | 12/24/1998 | 1845 |
Subject: | SGP/IRT10m/C1 - Reprocess: IRT insufficiently insulated |
DataStreams: | sgpirt10mC1.b1 |
Description: | The upwelling IRT on the 10m tower was insufficiently insulated to maintain an internal reference temperature above 0 degrees C. Measurements of surface temperature were over-estimated when instrument was below freezing. Data will be reprocessed, but users can correct data using the following correction factor: If T_reference < -5?C, then IRT_corrected = (IRT_original - 32.993K)/0.87238 where T_reference can be estimated with ambient temperature (e.g. inst_up_long_hemisp_dome_temp or inst_up_long_dome_temp from SGP.E13 SIRS) |
Measurements: | sgpirt10mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/27/2001 | 1416 | 09/27/2001 | 1456 |
Subject: | SGP/IRT/C1 - changed output range for new datalogger |
DataStreams: | sgpirt10mC1.a1, sgpirt10mC1.b1 |
Description: | The tower was lowered and the analog output parameters were changed at 14:45 to compensate for the recent change in data acquisition from an MFR logger to a CR10X. |
Measurements: | sgpirt10mC1.a1:
sgpirt10mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/26/2006 | 0853 | 09/18/2006 | 1530 |
Subject: | SGP/IRT/C1 - UPS failing |
DataStreams: | sgpirt10mC1.b1 |
Description: | The IRT data were intermittently bad during this period due to a failing UPS. The problem was corrected by replacing the UPS. |
Measurements: | sgpirt10mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/03/2012 | 1530 | 01/04/2012 | 2030 |
Subject: | SGP/IRT/C1 - Noisy 10m IRT data |
DataStreams: | sgpirt10mC1.b1 |
Description: | The 10M IRT surface temperatures were very noisy because the connection to the data logger had become loose. |
Measurements: | sgpirt10mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2012 | 1800 | 08/04/2012 | 2059 |
Subject: | SGP/IRT/C1 - Measurement range |
DataStreams: | sgpirt10mC1.b1, sgpirt25mC1.b1 |
Description: | The ground surface temperature exceeded the maximum measurement of 50C on some days. The maximum was increased to 60C for IRT10m on 10/1/2012 at 15:25 and for IRT25m on 10/9/2012 at 21:45. |
Measurements: | sgpirt25mC1.b1:
sgpirt10mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/11/2012 | 0750 | 02/08/2013 | 1525 |
Subject: | SGP/IRT/C1 - 10m IRT ground surface temperature |
DataStreams: | sgpirt10mC1.b1 |
Description: | The 10m IRT was measuring lower ground surface temperature than the 25m IRT. The lens was cleaned on 12/19/2012 and replaced on 2/8/2013 but the difference in temperature appears to be due to the seasonal difference in surface cover - tall grass vesus bare soil. |
Measurements: | sgpirt10mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/05/2011 | 1603 | 07/14/2011 | 0303 |
07/26/2011 | 2021 | 07/26/2011 | 2310 |
08/03/2011 | 2242 | 08/12/2011 | 0627 |
Subject: | SGP/IRT/C1 - Noisy data |
DataStreams: | sgpirt10mC1.b1 |
Description: | The power supplied to the data logger was very "noisy" causing the surface temperature measurements to also be "noisy". |
Measurements: | sgpirt10mC1.b1:
|