DQR ID | Subject | Data Streams Affected |
---|---|---|
D040421.3 | NSA/SKYRAD/C1 - itermittant IRT bias | nsaskyrad60sC1.b1 |
D060406.2 | NSA/METTWR/C2 - CMH Intake Fan Failure | nsamettwr2hC2.b1 |
D060426.2 | NSA/METTWR/C2 - CMH Data Suspect | nsamettwr2hC2.b1 |
D060426.4 | NSA/METTWR/C2 - CMH Data Suspect | nsamettwr2hC2.b1 |
D060426.6 | NSA/METTWR/C1 - CMH Data Suspect | nsamettwr4hC1.b1 |
D060526.3 | NSA/METTWR/C1 - Wind direction measurements suspect | nsamettwr4hC1.b1 |
D060724.1 | NSA/SKYRAD/C2 - Summer solstice shading of radiometers | nsaskyrad60sC2.b1 |
D060724.2 | NSA/SKYRAD/C1 - Summer solstice shading of radiometers | nsaskyrad60sC1.b1 |
D060817.4 | NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa | nsamettwr4hC1.b1 |
D060818.1 | NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa | nsamettwr2hC2.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/28/2003 | 0200 | 06/21/2006 | 0215 |
Subject: | NSA/SKYRAD/C1 - itermittant IRT bias |
DataStreams: | nsaskyrad60sC1.b1 |
Description: | A problem with the SKYRAD IRT that itermittantly produced a gradual increase in the sky temperature measurement then a sudden correction, as compared to AERI, appears to have been caused by a combination of a failing IR detector, a poor signal cable, a contaminated (with condensation or frost) mirror or lens, and low ambient temperatures. The positive bias was apparently not consistant in either frequency or duration but on days when the unusual behavior is observed, it usually occurred from about 00:00 to 06:00 local time. The instrument was repaired and recalibrated and the signal cable replaced. |
Measurements: | nsaskyrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/04/2006 | 1914 | 04/06/2006 | 2025 |
Subject: | NSA/METTWR/C2 - CMH Intake Fan Failure |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Intake fan failing causing poor readings from the CMH. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/2006 | 2212 | 04/11/2006 | 1812 |
Subject: | NSA/METTWR/C2 - CMH Data Suspect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH data was suspect due to incorrect intake fan installed. Proper spares were not on hand. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/20/2006 | 1535 | 04/20/2006 | 2110 |
Subject: | NSA/METTWR/C2 - CMH Data Suspect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH data was suspect due to blockage of intake by snow. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/25/2006 | 0037 | 04/11/2006 | 1811 |
Subject: | NSA/METTWR/C1 - CMH Data Suspect |
DataStreams: | nsamettwr4hC1.b1 |
Description: | CMH data was suspect due to incorrect calibration caused by procedural errors. The procedures were corrected and a new calibration completed. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/25/2006 | 0300 | 06/01/2006 | 0000 |
Subject: | NSA/METTWR/C1 - Wind direction measurements suspect |
DataStreams: | nsamettwr4hC1.b1 |
Description: | 20m wind direction standard deviation was 0 degrees for extended periods of time. This suggests the wind vane was icing up. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/2000 | 0000 | 08/05/2000 | 0000 |
05/08/2001 | 0000 | 08/05/2001 | 0000 |
05/08/2002 | 0000 | 08/05/2002 | 0000 |
05/08/2003 | 0000 | 08/05/2003 | 0000 |
05/08/2004 | 0000 | 08/05/2004 | 0000 |
05/08/2005 | 0000 | 08/05/2005 | 0000 |
05/08/2006 | 0000 | 08/05/2006 | 0000 |
Subject: | NSA/SKYRAD/C2 - Summer solstice shading of radiometers |
DataStreams: | nsaskyrad60sC2.b1 |
Description: | On and around the summer solstice, the NIP (Direct Normal shortwave measurement) and PSP (global hemispheic shortwave measurement) radiometers are shaded by other instruments or support structures. Shading azimuths have been determined for this site. The radiometer mentor suggests not using the data from the NIP and PSP radiometers when the sun is within the following azimuth bounds (typically from May 8th to August 5th of each year): Instr Obstruction AzStart AzEnd NIP rad table 356 17 PSP mfrsr 341 353 Note: There are a number of objects near the NW,N and NE horizon that may affect sunrise data near the summer soltice. |
Measurements: | nsaskyrad60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/1999 | 0000 | 08/05/1999 | 0000 |
05/08/2000 | 0000 | 08/05/2000 | 0000 |
05/08/2001 | 0000 | 08/05/2001 | 0000 |
05/08/2002 | 0000 | 08/05/2002 | 0000 |
05/08/2003 | 0000 | 08/05/2003 | 0000 |
05/08/2004 | 0000 | 08/05/2004 | 0000 |
05/08/2005 | 0000 | 08/05/2005 | 0000 |
05/08/2006 | 0000 | 08/05/2006 | 0000 |
Subject: | NSA/SKYRAD/C1 - Summer solstice shading of radiometers |
DataStreams: | nsaskyrad60sC1.b1 |
Description: | On and around the summer solstice, the NIP (Direct Normal shortwave measurement) and PSP (global hemispheic shortwave measurement) radiometers are shaded by other instruments or support structures. Shading azimuths have been determined for this site. The radiometer mentor suggests not using the data from the NIP and PSP radiometers when the sun is within the following azimuth bounds (typically from May 8th to August 5th of each year): Instrmt Obstruction AzStart AzEnd NIP rad table 346 358 NIP met tower 13 15 PSP mfrsr 6 16 |
Measurements: | nsaskyrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/31/2003 | 0000 | 07/12/2006 | 1608 |
Subject: | NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | nsamettwr4hC1.b1 |
Description: | Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community. |
Measurements: | nsamettwr4hC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2003 | 0000 | 07/12/2006 | 1853 |
Subject: | NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community. |
Measurements: | nsamettwr2hC2.b1:
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