DQR ID | Subject | Data Streams Affected |
---|---|---|
D040412.1 | NSA/MFRSR/C2 - Stepper Motor Failure | nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1, nsamfrsrC2.a0, nsamfrsrC2.b1, nsamfrsrC2.00 |
D040412.2 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrlangplotC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1 |
D041129.2 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1 |
D050330.1 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1 |
D050504.1 | NSA/MFRSR/C2 - Shadowband Misalignment | nsamfrsrC2.a0, nsamfrsrC2.b1, nsamfrsrC2.00, nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1 |
D051007.2 | NSA/MFRSR/C2 - Low sun elevation | nsamfrsrC2.00, nsamfrsrC2.a0, nsamfrsrC2.b1, nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1 |
D060831.1 | NSA/MFRSR/C1 - Minor shading problem | nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.b1, nsamfrsrC1.a0 |
D061027.4 | NSA/MFRSR/C1 - Ch 673 false signal | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
D070813.1 | NSA/MFRSR/C2 - Instrument shading problem | nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1, nsamfrsrC2.a0, nsamfrsrC2.b1 |
D080401.2 | NSA/MFRSR/C1 - Sensor shading problem | nsamfrsrC1.00, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
D090302.2 | NSA/MFRSR/C2 - Shadowband misalignment | nsamfrsraod1michC2.c1, nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1, nsamfrsrC2.a0, nsamfrsrC2.b1 |
D090708.3 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/03/2004 | 0000 | 04/21/2004 | 1400 |
Subject: | NSA/MFRSR/C2 - Stepper Motor Failure |
DataStreams: | nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1, nsamfrsrC2.a0, nsamfrsrC2.b1, nsamfrsrC2.00 |
Description: | The stepper motor failed intermittently causing noisy data with spikes and drops in the signal. |
Measurements: | nsamfrsrlangleyC2.c1:
nsamfrsrlangplotC2.c1:
nsamfrsrC2.00:
nsamfrsrC2.a0:
nsamfrsrC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/31/2004 | 0000 | 04/15/2004 | 2359 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrlangplotC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1 |
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:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/2004 | 1600 | 10/03/2004 | 1838 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.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:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/19/2005 | 0000 | 07/05/2005 | 1500 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.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:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/25/2005 | 0000 | 05/12/2005 | 1700 |
Subject: | NSA/MFRSR/C2 - Shadowband Misalignment |
DataStreams: | nsamfrsrC2.a0, nsamfrsrC2.b1, nsamfrsrC2.00, nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1 |
Description: | A shading problem occurred with this instrument. The problem is severe enough that it is suggested to not use the direct or diffuse data during the affected period. |
Measurements: | nsamfrsrlangleyC2.c1:
nsamfrsrlangplotC2.c1:
nsamfrsrC2.00:
nsamfrsrC2.a0:
nsamfrsrC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/02/2005 | 1701 | 11/15/2005 | 2359 |
Subject: | NSA/MFRSR/C2 - Low sun elevation |
DataStreams: | nsamfrsrC2.00, nsamfrsrC2.a0, nsamfrsrC2.b1, nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1 |
Description: | The instrument had a slight shading problem, particularly evident in the 415nm channel. The sun elevation is low which translate to high cosine correction resulting in significant noise. Data at this time of year should always be used with caution. The instrument is scheduled to be removed as soon as weather allows. |
Measurements: | nsamfrsrlangleyC2.c1:
nsamfrsrlangplotC2.c1:
nsamfrsrC2.00:
nsamfrsrC2.a0:
nsamfrsrC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/01/2006 | 0000 | 08/31/2006 | 2359 |
Subject: | NSA/MFRSR/C1 - Minor shading problem |
DataStreams: | nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.b1, nsamfrsrC1.a0 |
Description: | There was a very minor shading problem when the instrument resumed banding after solar midnight. This only affected a small portion of each day; not more than two hours after the instrument resumed banding after solar midnight. 7/9 is the best example of the problem. The boundaries of this DQR are a little loose as the often cloudy conditions make it difficult to precisely say when the problem stopped. Maintenance was performed on 9/5, but the problem was not visible sometime before that. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/14/2006 | 2300 | 03/27/2006 | 2100 |
Subject: | NSA/MFRSR/C1 - Ch 673 false signal |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | Channel 673 was reporting bad data immediately after the post winter installation. The cause was likely a bad connection. All other channels are OK. Do not use 673 for the period covered by this DQR. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/01/2007 | 0000 | 08/31/2007 | 2359 |
Subject: | NSA/MFRSR/C2 - Instrument shading problem |
DataStreams: | nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1, nsamfrsrC2.a0, nsamfrsrC2.b1 |
Description: | There is a slight shading issue occurring between 1230 UTC and 1730 UTC. It is first noticed around 6/1/2007 and is very slight. It is last noticed on 8/10/2007. This DQR runs through 8/31/2007 since the rest of the month is cloudy and it is hard to determine when the shading issue stopped. |
Measurements: | nsamfrsrlangleyC2.c1:
nsamfrsrlangplotC2.c1:
nsamfrsrC2.a0:
nsamfrsrC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/06/2008 | 1800 | 06/19/2008 | 2000 |
Subject: | NSA/MFRSR/C1 - Sensor shading problem |
DataStreams: | nsamfrsrC1.00, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | Immediately following the post winter re-installation, a shading problem is evident between the hours of 1900 and 0200 (spans midnight). This continues until 4/10/2008 when an attempt was made to resolve the problem. It helped some, but shifted the shading problem between the hours of 0200 - 1900. On 6/19/2008 site maintenance resolved the problem. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsraod1michC1.c1:
nsamfrsrlangleyC1.c1:
nsamfrsrC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/04/2009 | 2030 | 03/02/2009 | 2202 |
Subject: | NSA/MFRSR/C2 - Shadowband misalignment |
DataStreams: | nsamfrsraod1michC2.c1, nsamfrsrlangleyC2.c1, nsamfrsrlangplotC2.c1, nsamfrsrC2.a0, nsamfrsrC2.b1 |
Description: | Instrument was experiencing shading problems. Because of the very low sun angles it is difficult to determine what ranges of data are OK. Mentor suggests avoiding data covered by this DQR. |
Measurements: | nsamfrsrlangleyC2.c1:
nsamfrsrlangplotC2.c1:
nsamfrsrC2.a0:
nsamfrsrC2.b1:
nsamfrsraod1michC2.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/05/2009 | 0000 | 08/11/2009 | 1830 |
Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
Description: | There is a minor shading issue at high zenith angles (0530 - 1630 UTC). Due to extremely persistent cloudy conditions, maintenance was not attempted until 20090811. Cloudy conditions persisted, and it was never clear from the data if the instrument was shading properly at high zenith angles. Therefore, the DQR end date is listed as the time maintenance was performed. |
Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsraod1michC1.c1:
nsamfrsrlangleyC1.c1:
|