DQR ID | Subject | Data Streams Affected |
---|---|---|
D040412.2 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
D040421.3 | NSA/SKYRAD/C1 - itermittant IRT bias | nsaskyrad60sC1.b1 |
D040604.2 | NSA/NIMFR/C1 - Alignment problem | nsanimfrC1.a0, nsanimfrC1.b1 |
D040919.1 | NSA/GNDRAD/C1 - IRT power failure | nsagndrad60sC1.b1 |
D041025.1 | NSA/MFRSR/C1 - Failure of 500 nm channel | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
D041027.11 | NSA/NIMFR/C1 - No data collected during winter | nsanimfrC1.a0, nsanimfrC1.b1 |
D041027.6 | NSA/MFRSR/C1 - No data collected during winter | nsamfrsrC1.a0, nsamfrsrC1.b1 |
D041027.8 | NSA/MFR10M/C1 - No data collected during winter | nsamfr10mC1.a0, nsamfr10mC1.b1 |
D041129.2 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
D050112.1 | NSA/C1 - Site-wide power failure | nsa915rwptempconC1.a1, nsa915rwptempmomC1.a0, nsa915rwptempspecC1.a0, nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwpwindspecC1.a0, nsaaerich1C1.b1, nsaaerich2C1.b1, nsaaeriengineerC1.b1, nsaaerisummaryC1.b1, nsamettwr4hC1.b1, nsammcrmomC1.b1, nsamplC1.a1, nsamplpsC1.a0, nsamwrlosC1.b1, nsamwrpC1.b1, nsamwrtipC1.a1, nsatwrcam40mC1.a1, nsavceil25kC1.b1 |
D050217.2 | NSA/AERI/C1 - Blower motor failure | nsaaeriC1.00, nsaaerich2C1.b1, nsaaeriengineerC1.b1, nsaaerilblcloudsC1.c1, nsaaerirawC1.00, nsaaerisummaryC1.b1 |
D050224.3 | NSA/AERI/C1 - Blower Motor Failure -Channel 1 data effect | nsaaeriC1.00, nsaaeriengineerC1.b1, nsaaerilblcloudsC1.c1, nsaaerirawC1.00, nsaaerisummaryC1.b1 |
D050330.1 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
D050811.2 | NSA/NIMFR/C1 - Intermittent Data | nsanimfrC1.a0, nsanimfrC1.b1 |
D051101.2 | NSA/SKYRAD/C1 - IRT failure | nsaskyrad60sC1.b1 |
D060209.4 | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors | nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00 |
D060209.5 | NSA/SKYRAD/C1 - Power outage affecting some SKYRAD instruments | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1, nsaskyradC1.00 |
D060331.1 | NSA/AERI/C1 - Excessive Noise in C1 AERI data | nsaaerich1C1.b1, nsaaerisummaryC1.b1 |
D060630.39 | NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error | nsagndrad60sC1.b1 |
D080703.7 | NSA/MFRSR/C1 - Incorrect alltime units | nsamfrsrC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/31/2004 | 0000 | 04/15/2004 | 2359 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | During this time period the shadowband was misaligned. Portions of the data have acceptable shading and experienced data users can apply screening. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrlangleyC1.c1:
nsamfrsrC1.b1:
nsamfrsrC1.a0:
|
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 |
---|---|---|---|
05/26/2004 | 0600 | 06/03/2004 | 1925 |
Subject: | NSA/NIMFR/C1 - Alignment problem |
DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
Description: | NIMFR at the Barrow Site was not pointing directly at the sun because the solar tracker was not aligned correctly. As a consequence, the measured irradiances are too low. Once the alignment problem was fixed at 6/3/2004 1925 GMT, the problem was apparently solved. The NIP might similarly be affected. |
Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/15/2004 | 0000 | 09/22/2004 | 0552 |
Subject: | NSA/GNDRAD/C1 - IRT power failure |
DataStreams: | nsagndrad60sC1.b1 |
Description: | After performing corrective maintenance which involved turning off power to the GNDRAD instruments and data logger, power to the IRT was not restored. The problem was corrected by replacing the data logger. |
Measurements: | nsagndrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/22/2004 | 2359 | 11/05/2004 | 2030 |
Subject: | NSA/MFRSR/C1 - Failure of 500 nm channel |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | The 500nm channel measurement was reporting values near zero due to a loose cable. All other channels were reporting normal values. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrlangleyC1.c1:
nsamfrsrC1.b1:
nsamfrsrC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/16/1998 | 2336 | 03/16/1999 | 2042 |
11/18/1999 | 0250 | 02/03/2000 | 0048 |
11/01/2000 | 1802 | 04/25/2001 | 2328 |
11/06/2001 | 2310 | 03/15/2002 | 0210 |
11/07/2002 | 1903 | 03/06/2003 | 1502 |
11/17/2003 | 2303 | 04/06/2004 | 1702 |
11/08/2004 | 2302 | 02/17/2005 | 2002 |
11/28/2005 | 2303 | 03/14/2006 | 2002 |
11/20/2006 | 2202 | 03/20/2007 | 0002 |
10/31/2007 | 0003 | 03/06/2008 | 1502 |
Subject: | NSA/NIMFR/C1 - No data collected during winter |
DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/16/1998 | 2336 | 03/16/1999 | 2251 |
11/18/1999 | 1712 | 01/31/2000 | 1740 |
11/01/2000 | 1800 | 03/09/2001 | 1615 |
11/05/2001 | 2300 | 03/08/2002 | 1900 |
11/05/2002 | 1903 | 03/06/2003 | 2002 |
11/17/2003 | 1903 | 03/31/2004 | 2302 |
11/08/2004 | 2202 | 02/18/2005 | 1802 |
11/28/2005 | 2302 | 03/27/2006 | 2102 |
11/20/2006 | 1957 | 04/06/2007 | 2025 |
10/30/2007 | 2303 | 03/06/2008 | 1502 |
Subject: | NSA/MFRSR/C1 - No data collected during winter |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1 |
Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
Measurements: | nsamfrsrC1.b1:
nsamfrsrC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/16/1998 | 2336 | 03/15/1999 | 1858 |
11/18/1999 | 0213 | 02/03/2000 | 0119 |
11/01/2000 | 1849 | 03/13/2001 | 0249 |
11/08/2001 | 0106 | 03/14/2002 | 0105 |
11/07/2002 | 2302 | 04/17/2003 | 0002 |
11/18/2003 | 1903 | 04/01/2004 | 2002 |
11/08/2004 | 2302 | 02/18/2005 | 1802 |
11/29/2005 | 1802 | 03/15/2006 | 0002 |
11/20/2006 | 2302 | 03/26/2007 | 1605 |
10/30/2007 | 2000 | 03/06/2008 | 1502 |
Subject: | NSA/MFR10M/C1 - No data collected during winter |
DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/2004 | 1600 | 10/03/2004 | 1838 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | During the time period specified, the shadowband was misaligned due to ice-accumulation on the band. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrlangleyC1.c1:
nsamfrsrC1.b1:
nsamfrsrC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/13/2004 | 1000 | 12/13/2004 | 2330 |
Subject: | NSA/C1 - Site-wide power failure |
DataStreams: | nsa915rwptempconC1.a1, nsa915rwptempmomC1.a0, nsa915rwptempspecC1.a0, nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwpwindspecC1.a0, nsaaerich1C1.b1, nsaaerich2C1.b1, nsaaeriengineerC1.b1, nsaaerisummaryC1.b1, nsamettwr4hC1.b1, nsammcrmomC1.b1, nsamplC1.a1, nsamplpsC1.a0, nsamwrlosC1.b1, nsamwrpC1.b1, nsamwrtipC1.a1, nsatwrcam40mC1.a1, nsavceil25kC1.b1 |
Description: | The Barrow facility experienced a site-wide power failure on 12/13. Power was restored to most instruments between 2250 and 2330 GMT. |
Measurements: | nsa915rwpwindconC1.a1:
nsatwrcam40mC1.a1:
nsa915rwptempconC1.a1:
nsa915rwpwindmomC1.a0:
nsamplC1.a1:
nsamplpsC1.a0:
nsamwrpC1.b1:
nsa915rwptempspecC1.a0:
nsa915rwptempmomC1.a0:
nsamettwr4hC1.b1:
nsaaeriengineerC1.b1:
nsaaerich2C1.b1:
nsaaerisummaryC1.b1:
nsamwrtipC1.a1:
nsavceil25kC1.b1:
nsa915rwpwindspecC1.a0:
nsamwrlosC1.b1:
nsaaerich1C1.b1:
nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/09/2005 | 2300 | 02/10/2005 | 2300 |
Subject: | NSA/AERI/C1 - Blower motor failure |
DataStreams: | nsaaeriC1.00, nsaaerich2C1.b1, nsaaeriengineerC1.b1, nsaaerilblcloudsC1.c1, nsaaerirawC1.00, nsaaerisummaryC1.b1 |
Description: | The blower motor failed on February 9, estimated time 23:00 GMT. The problem was repaired on February 10, 23:00 GMT. The blower motor serves two functions. It maintains the instrument window enclosure at the outside temperature and blows ice crystals from the enclosure. Failure of the motor caused the enclosure temperature to increase by approximately 12K (from 255 to 267K). Previous experience in comparing arctic instruments with the blower on and off have shown that if ice crystals enter the enclosure, there is a slight increase in the 3-5 um (ch 2) spectral intensity. It is unlikely that Ch 1 is affected. |
Measurements: | nsaaeriC1.00:
nsaaerilblcloudsC1.c1:
nsaaerirawC1.00:
nsaaerich2C1.b1:
nsaaeriengineerC1.b1:
nsaaerisummaryC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/09/2005 | 2300 | 02/10/2005 | 2300 |
Subject: | NSA/AERI/C1 - Blower Motor Failure -Channel 1 data effect |
DataStreams: | nsaaeriC1.00, nsaaeriengineerC1.b1, nsaaerilblcloudsC1.c1, nsaaerirawC1.00, nsaaerisummaryC1.b1 |
Description: | The blower motor failed on February 9, estimated time 23:00 GMT. The problem was repaired on February 10, 23:00 GMT. The blower motor serves two functions. It maintains the instrument window enclosure at the outside temperature and blows ice crystals from the enclosure. Failure of the motor caused the enclosure temperature to increase by approximately 12K (from 255 to 267K). Previous experience in comparing arctic instruments with the blower on and off have shown that if ice crystals enter the enclosure, there is a slight increase in the 3-5 um (ch 2) spectral intensity. It is unlikely that Ch 1 is affected. However, we can not be certain that there is no problem with the data. Hence, this DQR should be considered a warning that Channel 1 data may be affected. |
Measurements: | nsaaerilblcloudsC1.c1:
nsaaeriC1.00:
nsaaerirawC1.00:
nsaaerisummaryC1.b1:
nsaaeriengineerC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/19/2005 | 0000 | 07/05/2005 | 1500 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | There were shading problems during the specified period, at different times of the day during the time period. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrlangleyC1.c1:
nsamfrsrC1.b1:
nsamfrsrC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/08/2005 | 1700 | 08/11/2005 | 2359 |
Subject: | NSA/NIMFR/C1 - Intermittent Data |
DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
Description: | The NIMFR occasionally flat lined in comparison to the the co-located MFRSR. Poor electrical connection. Intermittent data are missing and unrecoverable. |
Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/31/2005 | 0600 | 01/18/2006 | 0032 |
Subject: | NSA/SKYRAD/C1 - IRT failure |
DataStreams: | nsaskyrad60sC1.b1 |
Description: | The IRT failed and was replaced with a spare. |
Measurements: | nsaskyrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/07/2006 | 0910 | 02/07/2006 | 2350 |
Subject: | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors |
DataStreams: | nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00 |
Description: | During the power outage the upwelling global measurement from the PSP instrument shows a slight increase from -5 to +0 W/m2. This is due to removal of thermal offsets induced by the AC heater during the power outage. This heater is installed within the PSP ventilator - it is necessary for the NSA/C1 climate. The upwelling longwave PIR instrument is unaffected due to case and dome temperature corrections. The IRT is AC powered and was not operational during this time period. |
Measurements: | nsagndradC1.00:
nsagndrad20sC1.a0:
nsagndrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/07/2006 | 0910 | 02/07/2006 | 2350 |
Subject: | NSA/SKYRAD/C1 - Power outage affecting some SKYRAD instruments |
DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1, nsaskyradC1.00 |
Description: | During the power outage the downwelling global measurement from the PSP instrument and downwelling diffuse 8-48 instrument shows a slight increase from -5 to +0 W/m2. This is due to removal of thermal offsets induced by the AC heater during the power outage. This heater is installed within the PSP ventilator - it is necessary for the NSA/C1 climate. The downwelling longwave PIR instrument is unaffected due to case and dome temperature corrections. The IRT is AC powered and was not operational during this time period. |
Measurements: | nsaskyradC1.00:
nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/30/2005 | 0000 | 07/01/2006 | 2359 |
Subject: | NSA/AERI/C1 - Excessive Noise in C1 AERI data |
DataStreams: | nsaaerich1C1.b1, nsaaerisummaryC1.b1 |
Description: | Initially it was believed that the greater noise level in AERI C1 data was due to the extended range detector, which has lower sensitivity. However, when the S01 AERI was installed next to the C1 AERI and it stabilized on 9/30/2005, it was observed that the noise levels on the newly installed S01 AERI were much lower than for the C1 AERI. Therefore, the excessive noise of the C1 AERI is not due to the fundamental nature of the extended range detector but instead due to failure within the detector. The failure could be due to a poor D* value of too high a detector temperature. It could also be caused by optical alignment issues. In either case, the spectral radiance data have much more noise and that results in larger error bars when using the radiance data, especially long wave data as monitored by the LW_HBB_NEN flag. On 9/30/2005, the S01 AERI, which is next to the C1 AERI, came on-line and is producing low noise data. The S01 data should be used instead of the C1 data where low noise requirements are needed. On 6/26/2006, the S01 AERI went offline due to a laser failure. The C1 AERI was moved to the connex where data were within reasonable limits for an extended range detector. Beginning 20060701, the C1 data are the preferred AERI data set at the NSA Barrow location. |
Measurements: | nsaaerisummaryC1.b1:
nsaaerich1C1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/04/2004 | 1600 | 12/21/2005 | 1855 |
Subject: | NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error |
DataStreams: | nsagndrad60sC1.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place are being reprocessing to remove the calibration bias. Note, this also affected standard deviation, maximum and minimum data fields. |
Measurements: | nsagndrad60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/18/1998 | 0000 | 07/08/2008 | 2359 |
Subject: | NSA/MFRSR/C1 - Incorrect alltime units |
DataStreams: | nsamfrsrC1.b1 |
Description: | Units of alltime_hemisp_broadband and alltime_hemisp_narrowband_filter(N) are incorrect. They should be counts. A low priority reprocessing task has been submitted to correct this metadata error. |
Measurements: | nsamfrsrC1.b1:
|