DQR ID | Subject | Data Streams Affected |
---|---|---|
D030821.2 | NSA/SKYRAD/C1 - IRT incorrect min/max value | nsaskyrad60sC1.b1 |
D030821.3 | NSA/SKYRAD/C2 - IRT incorrect min/max values | nsaskyrad60sC2.b1 |
D031007.1 | NSA/SKYRAD/C2 - IRT measurements during precipitation events | nsaskyrad60sC2.b1 |
D031007.2 | NSA/SKYRAD/C1 - IRT measurements during precipitation events | nsaskyrad60sC1.b1 |
D031226.1 | NSA/SKYRAD/C1 - NSA B&W nighttime offset in Barrow too large | nsaskyradC1.00, nsaskyrad60sC1.a1, nsaskyrad60sC1.b1 |
D080919.1 | NSA/GNDRAD/C1 - Net radiometer removed | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 03/03/2003 | 2359 |
Subject: | NSA/SKYRAD/C1 - IRT incorrect min/max value |
DataStreams: | nsaskyrad60sC1.b1 |
Description: | The values of valid_min and valid_max for field sky_ir_temp were incorrectly assigned to -49.7 and +50.0 C, respectively. The actual values should be -60 and +40 C. |
Measurements: | nsaskyrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0248 | 03/01/2003 | 2359 |
Subject: | NSA/SKYRAD/C2 - IRT incorrect min/max values |
DataStreams: | nsaskyrad60sC2.b1 |
Description: | The values of valid_min and valid_max for field sky_ir_temp were incorrectly assigned to -49.7 and +50.0 C, respectively. The actual values should be -60 and +40 C. |
Measurements: | nsaskyrad60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/21/1999 | 0000 | 06/01/2003 | 2130 |
Subject: | NSA/SKYRAD/C2 - IRT measurements during precipitation events |
DataStreams: | nsaskyrad60sC2.b1 |
Description: | The IRT measurement of sky/cloud temperature was in question during precipitation events because rain or snow could accumulate in the upward-pointed lens barrel. This was corrected by reorienting the IRT to measure the sky temperature as reflected by a gold mirror. |
Measurements: | nsaskyrad60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/1999 | 0000 | 03/28/2003 | 0200 |
Subject: | NSA/SKYRAD/C1 - IRT measurements during precipitation events |
DataStreams: | nsaskyrad60sC1.b1 |
Description: | The IRT measurement of sky/cloud temperature was in question during precipitation events because rain or snow could accumulate in the upward-pointed lens barrel. This was corrected by reorienting the IRT to measure the sky temperature as reflected by a gold mirror. |
Measurements: | nsaskyrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/20/2001 | 0000 | 01/23/2002 | 0000 |
Subject: | NSA/SKYRAD/C1 - NSA B&W nighttime offset in Barrow too large |
DataStreams: | nsaskyradC1.00, nsaskyrad60sC1.a1, nsaskyrad60sC1.b1 |
Description: | This problem only became apparent as NSA C1 nights became long enough for full darkness. The shaded global diffuse instrument (Eppley 8-48) showed a negative nighttime offset larger than the expected 0 to -4 W/m2. Typically -5 to -8 W/m2. This size of offset is not uncommon with Eppley PSPs but not observed with Eppley 8-48s. The problem was corrected with replacement of mounting screws which were creating a ground loop. |
Measurements: | nsaskyradC1.00:
nsaskyrad60sC1.b1:
nsaskyrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/03/2000 | 0000 | 03/03/2003 | 2359 |
Subject: | NSA/GNDRAD/C1 - Net radiometer removed |
DataStreams: | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
Description: | The net radiometer was removed from the NSA.C1 GNDRAD instrument suite on Feb 3, 2000. Net rad variables were filled with garbage data until Sept 23, 2000 and with missing values (-9999) until 20041103. The net rad variables were removed from the netcdf files after 20041103. A reprocessing task (RID-526) has been submitted to the queue to address the need to add metadata to the NSA.C1 GNDRAD netcdf files documenting the missing data as well as to move toward a consistent datastream format throughout time. |
Measurements: | nsagndrad60sC1.b1:
nsagndrad60sC1.a1:
|