DQR ID | Subject | Data Streams Affected |
---|---|---|
D021004.20 | NSA/GNDRAD/C1 - PIR thermopile instantaneous values intermittently read zero | nsagndrad20sC1.a1 |
D080728.1 | NSA/GNDRAD/C1 - IRT incorrect | nsagndrad60sC1.a1 |
D080729.2 | NSA/GNDRAD/C1 - IRT scale factor | nsagndrad60sC1.a1 |
D990924.1 | NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated | nsagndrad60sC1.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/1998 | 2157 | 03/31/2001 | 2359 |
Subject: | NSA/GNDRAD/C1 - PIR thermopile instantaneous values intermittently read zero |
DataStreams: | nsagndrad20sC1.a1 |
Description: | GNDRAD intermittently reported false zero values for the third instantaneous value (50 sec after the minute) of the PIR thermopile voltage. |
Measurements: | nsagndrad20sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/1998 | 0000 | 05/13/1998 | 2152 |
Subject: | NSA/GNDRAD/C1 - IRT incorrect |
DataStreams: | nsagndrad60sC1.a1 |
Description: | The IRT data were very noisy and unrepresentative. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/13/1998 | 2152 | 06/04/1998 | 2208 |
Subject: | NSA/GNDRAD/C1 - IRT scale factor |
DataStreams: | nsagndrad60sC1.a1 |
Description: | The IRT scale factors in the data logger were incorrectly set to m = 100 degC/V, b = -60 degC. They were corrected to 25 degC/V and -50 degC. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/1998 | 2156 | 12/22/2000 | 2020 |
Subject: | NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated |
DataStreams: | nsagndrad60sC1.a1 |
Description: | IRT had insufficient heating 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 the ambient temperature (e.g. inst_up_long_hemisp_dome_temp or inst_up_long_dome_temp) |
Measurements: | nsagndrad60sC1.a1:
|