DQR ID | Subject | Data Streams Affected |
---|---|---|
D000604.1 | SGP/MFRSR/E13 - Spikes in direct and diffuse data | sgpmfrsrE13.a0, sgpmfrsrE13.b1 |
D000610.1 | SGP/MFRSR/C1 - A/D Converter locked up | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D010831.9 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D010904.1 | SGP/MFRSR/E13 - 415 & 500 nm channels down | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D020628.12 | SGP/MFRSR/E13 - Hole in the diffuser | sgpmfrsrE13.a0, sgpmfrsrE13.b1 |
D020821.2 | SGP/MFRSR/C1 - Out-of-band filter leakage | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D030531.1 | SGP/MFRSR/C1 - Shadowband misalignment | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D030811.1 | SGP/MFRSR/C1 - Broadband and 500nm data suspect | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D030907.1 | SGP/MFRSR/C1 - Shadowband misalignment | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D040904.5 | SGP/MFRSR/C1 - Shadowband misalignment | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D051123.4 | SGP/MFRSR/C1 - Missing data | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D051227.5 | SGP/MFRSR/C1 - Shadowband Misalignment | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
D051230.6 | SGP/MFRSR/E13 - Missing data | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D060105.6 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D060505.1 | SGP/MFRSR/E13 - Shadowband misalignment (minor) | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D061207.2 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D070206.3 | SGP/MFRSR/E13 - Shadowband misalignment (minor) | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D070531.1 | SGP/MFRSR/E13 - Noisy data | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D080108.2 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D080222.2 | SGP/RSS/C1 - Stability and nonlinearity corrections | sgprssC1.00, sgprssC1.b1 |
D080304.1 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D080403.1 | SGP/MFRSR/E13 - Heater controller board failure | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D091117.3 | SGP/MFRSR/E13 - Heater controller failure | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1 |
D100115.2 | SGP/MFRSR/E13 - Heater board failure | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
D100224.4 | SGP/MFRSR/E13 - Shadowband Misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
D101220.2 | SGP/MFRSR/C1 - Shadowband Misalignment | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsraod1michC1.c1, sgpmfrsrlangplotC1.c1 |
D110513.5 | SGP/MFRSR/E13 - Heater board failure | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
D110607.2 | SGP/MFRSR/E13 - Shading Problem | sgpmfrsrE13.00, sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
D110607.4 | SGP/MFRSR/C1 - Shading Problem | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsraod1michC1.c1, sgpmfrsrlangplotC1.c1 |
D980623.1 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D981112.1 | SGP/MFRSR/C1 - Irradiances too high | sgpmfrsrC1.a0, sgpmfrsrC1.b1 |
D990119.1 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
D990517.1 | SGP/MFRSR/E13 - Shadowband misalignment | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/10/2000 | 2113 | 05/23/2000 | 2359 |
Subject: | SGP/MFRSR/E13 - Spikes in direct and diffuse data |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1 |
Description: | There are spikes in the direct normal and diffuse data. The spikes are fairly infrequent and do not adversely affect data quality. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/17/1997 | 0600 | 08/20/1997 | 1600 |
06/09/1998 | 0000 | 07/07/1998 | 2000 |
10/02/1998 | 0000 | 10/14/1998 | 2359 |
05/26/2000 | 0000 | 06/09/2000 | 2359 |
Subject: | SGP/MFRSR/C1 - A/D Converter locked up |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/12/2001 | 0000 | 06/30/2001 | 2359 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | Diffuse band was not adjusted correctly for PM observations. Only direct beam and diffuse radiation fields affected. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/03/2001 | 0000 | 06/04/2001 | 2359 |
Subject: | SGP/MFRSR/E13 - 415 & 500 nm channels down |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | 415nm & 500nm channels are down (filters 1 & 2). |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrlangplotE13.c1:
sgpmfrsrE13.b1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/14/2002 | 0100 | 04/22/2002 | 1900 |
Subject: | SGP/MFRSR/E13 - Hole in the diffuser |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1 |
Description: | A step change in the January 14, 2002 data was noticed. Upon inspection a small hole (bird peck?) was found in the diffuser. The entire head was replace and the instrument was returned to service 4/22 @1900. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/19/2001 | 0000 | 10/28/2002 | 2359 |
Subject: | SGP/MFRSR/C1 - Out-of-band filter leakage |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | Testing of the batch of centrovision filters being used in the MFRSR C1 instrument indicate that the first four filters leak 'out of band' light. The leakage for each filter is (1)415nm 3%, (2)500nm 1-2%, (3)615nm 1-2%, (4)673nm 3%. Acceptable leakage is less than 0.5%. This leakage causes an error in the irradiance values (too high) at these four wavelengths and the optical depths calculated using this data will be too high. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/29/2003 | 1530 | 06/02/2003 | 1628 |
Subject: | SGP/MFRSR/C1 - Shadowband misalignment |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | During the time period specified, the shadowband was misaligned. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/06/2003 | 0000 | 05/01/2003 | 2359 |
Subject: | SGP/MFRSR/C1 - Broadband and 500nm data suspect |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | During this time period the broadband and 500nm channels intermittently reported erroneously high values due to a problem with the instruments loggerboard. The other channels were unaffected. This problem is sometimes evident as a sudden "step" shift in the values. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/05/2003 | 1900 | 09/09/2003 | 1959 |
Subject: | SGP/MFRSR/C1 - Shadowband misalignment |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | During the time period specified, the shadowband was misaligned. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/29/2004 | 1830 | 06/03/2004 | 1200 |
Subject: | SGP/MFRSR/C1 - Shadowband misalignment |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | During the time period specified, the shadowband was misaligned. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/1997 | 1806 | 06/09/1997 | 1322 |
07/19/1997 | 0608 | 07/21/1997 | 1706 |
01/31/1998 | 1705 | 02/02/1998 | 1707 |
03/09/1998 | 1807 | 03/11/1998 | 1707 |
04/27/1998 | 1107 | 04/29/1998 | 2008 |
10/31/1998 | 1112 | 11/03/1998 | 1448 |
12/25/1998 | 2111 | 12/28/1998 | 1526 |
03/13/1999 | 2311 | 03/15/1999 | 1954 |
08/12/2000 | 1310 | 08/14/2000 | 1911 |
08/18/2001 | 0002 | 08/20/2001 | 1602 |
01/30/2002 | 1802 | 02/11/2002 | 1502 |
03/09/2002 | 2002 | 03/12/2002 | 0702 |
07/23/2004 | 2002 | 07/26/2004 | 1455 |
02/17/2006 | 2002 | 02/21/2006 | 1603 |
07/15/2006 | 1104 | 07/17/2006 | 1404 |
12/18/2006 | 2104 | 12/20/2006 | 2130 |
12/22/2007 | 1704 | 12/24/2007 | 1604 |
04/26/2008 | 0004 | 04/28/2008 | 1904 |
11/10/2010 | 2210 | 11/12/2010 | 1610 |
Subject: | SGP/MFRSR/C1 - Missing data |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/2005 | 1650 | 12/29/2005 | 1705 |
Subject: | SGP/MFRSR/C1 - Shadowband Misalignment |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | Instrument not shading properly. Do not use any diffuse or direct irradiance data from this instrument during this period. Maintenance on 12/29/2005 resolved the problem. |
Measurements: | sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/02/1998 | 0036 | 05/04/1998 | 2210 |
10/31/1998 | 1112 | 11/03/1998 | 1934 |
12/25/1998 | 2112 | 12/28/1998 | 1547 |
03/14/1999 | 0019 | 03/16/1999 | 0321 |
08/18/2001 | 0008 | 08/21/2001 | 1708 |
01/30/2002 | 1808 | 02/11/2002 | 1509 |
03/09/2002 | 2007 | 03/12/2002 | 0708 |
05/23/2003 | 1708 | 05/27/2003 | 1408 |
07/23/2004 | 2107 | 07/26/2004 | 1408 |
11/11/2005 | 0508 | 11/14/2005 | 2008 |
01/06/2006 | 1707 | 01/09/2006 | 1608 |
02/17/2006 | 2007 | 02/21/2006 | 1608 |
07/15/2006 | 1108 | 07/17/2006 | 1408 |
02/08/2007 | 1508 | 02/11/2007 | 1228 |
02/15/2007 | 0407 | 02/17/2007 | 1232 |
03/16/2007 | 1843 | 03/18/2007 | 1930 |
Subject: | SGP/MFRSR/E13 - Missing data |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/2005 | 1445 | 12/29/2005 | 1700 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | Shading problem first evident on the 22nd. Overcast conditions during the previous week. The mostly clear day on 12/15/2005 shows no evidence of a shading problem. During this period do not use diffuse or direct data between 1430 and 1900 UTC. Maintenance on 12/29/2005 resolved this issue. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2006 | 1800 | 01/11/2006 | 1930 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment (minor) |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | A slight shading problem between the hours of 1800 and 2300 UTC. Avoid direct and diffuse data during this period. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/2006 | 1300 | 12/04/2006 | 1900 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | The shadowband was not shading the diffuser at all from the 1st until maintenance resolved the problem on 12/4 just before 1900 UTC. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/26/2007 | 1430 | 01/28/2007 | 1830 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment (minor) |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | There is a slight shading issue between 1430 and 1830 on the days covered by this DQR. It is a very slight problem, if it is really a shading issue. It is difficult to say with 100% certainty as it stopped without documented maintenance. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/08/2007 | 1500 | 03/18/2007 | 1900 |
Subject: | SGP/MFRSR/E13 - Noisy data |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | A refurbished head and Campbell logging system were installed at this site on Feb 2. An incorrect program was loaded into the logger resulting in very noisy data until the correct program was loaded on March 18. Avoid data during this period. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/16/2007 | 1300 | 12/18/2007 | 2000 |
12/22/2007 | 0000 | 12/28/2007 | 1630 |
12/28/2007 | 1630 | 01/09/2008 | 2359 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | Massive shading issue on 12/16 through 12/18. It was obviously found and resolved on 12/18. On 12/22 it looks like the shadowband stops functioning altogether. (It is likely it slipped on the motor shaft.) It continues like this until 12/28 @ 1630 when an attempt was made fix the problem. This was somewhat successful, but there is still a shading problem in the afternoon between 1730 and 2300 until 01/09/2008. Some data from 12/28/2007 - 01/09/2008 will be OK. Don't use data between the hours 1730 and 2300. Avoid data from other dates described in this DQR. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/01/2003 | 1200 | 09/27/2007 | 0017 |
Subject: | SGP/RSS/C1 - Stability and nonlinearity corrections |
DataStreams: | sgprssC1.00, sgprssC1.b1 |
Description: | From the very beginning after deployment in May 2003 we observed several effects that we did not anticipate during the pre-deployment lab test. They were: (1) Rapid drop in responsivity; (2) Responsivity having 1/lambda wavelike periodicity; (3) Appearance of nonlinearity within 3 months; (4) Larger than expected diurnal wavelength changes and long term wavelength drift. Right away we responded with development of correction algorithms and methods. (1) and (2) are corrected to within 2-3% with biweekly lamp calibrations; (3) Nonlinearity factor is derived from calibration data and applied in correction; and (4) is efficiently corrected with Fourier correlation algorithm applied to every spectrum (once a minute). Furthermore we perform Langley regression processing (not a part of official data stream) that corrects longer term drifts in responsivity and should correct calibration lamp biases. The Vo's from Langley regressions are available via RSS web page. The overhaul of the instrument is planned to eliminate or at least reduce nonlinerarity stability problems. We hope that after the overhaul data processing would be simplified and the frequency of calibrations would be reduced. |
Measurements: | sgprssC1.00:
sgprssC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/16/2007 | 1330 | 12/18/2007 | 2000 |
12/30/2007 | 1730 | 01/09/2008 | 2359 |
02/06/2008 | 1600 | 02/06/2008 | 1900 |
02/24/2008 | 1300 | 02/25/2008 | 1845 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | Between 20071216 and 20080225 there are four stretches where the instrument is not shading properly. Those periods have been accurately designated in this DQR. Data outside these ranges are OK. Avoid using this instrument during times covered by this DQR. The hemispheric data may be OK, but with other good choices (C1 MFRSR and NIMFR), it is suggested to just avoid E13. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/31/2008 | 0730 | 04/03/2008 | 1800 |
Subject: | SGP/MFRSR/E13 - Heater controller board failure |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | The heater controller board failed allowing the instrument head temperature to climb too high. The higher head temperatures affected the data. Do not use data covered by this DQR. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/16/2009 | 0114 | 11/18/2009 | 1520 |
Subject: | SGP/MFRSR/E13 - Heater controller failure |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | The heater board failed. A replacement board was installed on 20091118. The mentor recommends avoiding data while the heater is not functioning. |
Measurements: | sgpmfrsraod1michE13.c1:
sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/07/2010 | 0350 | 01/08/2010 | 1900 |
Subject: | SGP/MFRSR/E13 - Heater board failure |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
Description: | The heater controller board failed on 20100107 and was replaced on 20100108. Do not use data while the heater controller was not functioning. |
Measurements: | sgpmfrsraod1michE13.c1:
sgpmfrsrE13.a0:
sgpmfrsrlangplotE13.c1:
sgpmfrsrE13.b1:
sgpmfrsrcldod1minE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/30/2010 | 2000 | 02/02/2010 | 2359 |
Subject: | SGP/MFRSR/E13 - Shadowband Misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
Description: | It looks like poor weather may have caused the shadowband to slip slightly. The only affected days are 1/30 and 2/2. The days between, before, and after are all overcast. The first clear day after 2/2 is 2/9 when the problem is not evident. Affected data are from 1800 - sunset. |
Measurements: | sgpmfrsraod1michE13.c1:
sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrcldod1minE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/23/2010 | 1909 | 12/03/2010 | 1700 |
Subject: | SGP/MFRSR/C1 - Shadowband Misalignment |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsraod1michC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | Shadowband slipped on the motor shaft. Maintenance resolved the issue on 20101203 @ 1700 UTC. The shading issue is particularly bad. Do not use data covered by this DQR. |
Measurements: | sgpmfrsraod1michC1.c1:
sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/03/2011 | 0948 | 03/22/2011 | 2023 |
Subject: | SGP/MFRSR/E13 - Heater board failure |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
Description: | The heater board failed. Do not use data from the instrument while the heater board was not functioning. |
Measurements: | sgpmfrsraod1michE13.c1:
sgpmfrsrE13.a0:
sgpmfrsrlangplotE13.c1:
sgpmfrsrE13.b1:
sgpmfrsrcldod1minE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/2011 | 1500 | 01/13/2011 | 1930 |
Subject: | SGP/MFRSR/E13 - Shading Problem |
DataStreams: | sgpmfrsrE13.00, sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsraod1michE13.c1, sgpmfrsrlangplotE13.c1, sgpmfrsrcldod1minE13.c1 |
Description: | A very minor shading issue is first seen on 20110101, affecting data between 1530 UTC and 1930 UTC. The last day it is conclusively observed is 20110113. Subsequent days are cloudy, so we can't say for sure when it stopped. |
Measurements: | sgpmfrsraod1michE13.c1:
sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrcldod1minE13.c1:
sgpmfrsrlangleyE13.c1:
sgpmfrsrE13.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/05/2011 | 1400 | 04/05/2011 | 1900 |
Subject: | SGP/MFRSR/C1 - Shading Problem |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1, sgpmfrsrlangleyC1.c1, sgpmfrsraod1michC1.c1, sgpmfrsrlangplotC1.c1 |
Description: | On 20110405 in the morning there is a signature of a shading issue. This is the only time it is evident. Possible it was noticed right away during a regular site visit. Data the rest of the month look fine. |
Measurements: | sgpmfrsraod1michC1.c1:
sgpmfrsrlangleyC1.c1:
sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
sgpmfrsrlangplotC1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/04/1998 | 0000 | 06/16/1998 | 1715 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | The E13 MFRSR developed a shading problem on or about 05/04. (The exact date when this problem started is difficult to pin down exactly.) The shading problem is easy to identify on a clear day because plots of direct beam and diffuse irradiance versus time become "fuzzy". The total irradiance is not affected. In response to the shading problem, a whole sequence of events then ensued: these actions were designed to solve the shading problem but did not succeed until the very end. Here's a rundown of what took place: 98/05/11 - shadowband adjustment was made at 1544 GMT - this adjustment corrected the shading problem that occurred in the morning, but inadvertently caused a PM shading problem 98/05/20 - shadowband adjustment at 1804 GMT 98/05/21 - shadowband adjustment at 1630 GMT 98/06/01 - shadowband adjustment at 1910 GMT 98/06/02 - shadowband adjustmnet at 1550 GMT Alas, these adjustments did not solve the shading problem and it seemed to get worse (for example, on 06/11 the shading is VERY BAD from sunup until about 1500 LST). 98/06/16 - shadowband adjustment at 1715 GMT This final adjustment seems to a solved the problem! |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/14/1998 | 0000 | 10/24/1998 | 2359 |
Subject: | SGP/MFRSR/C1 - Irradiances too high |
DataStreams: | sgpmfrsrC1.a0, sgpmfrsrC1.b1 |
Description: | After the A/D convertor lock-up was corrected on 981014, the irradiances as measured by the MFRSR were about 20% too high. 981018 is a particular egregious example of measured irradiances that are too large. Cause of the problem is not known, though suspect some moisture got into the instrument (this was a period of much precipitation). After 981024, the MFRSR settled down and the irradiances returned to a normal range. |
Measurements: | sgpmfrsrC1.a0:
sgpmfrsrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/11/1999 | 2200 | 01/14/1999 | 2100 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | The E13 MFRSR suffered from shading problems. You can identify the shading problems by the "fuzziness" of data - it's an unmistakable pattern that is easy to identify. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/12/1999 | 0000 | 05/13/1999 | 2000 |
Subject: | SGP/MFRSR/E13 - Shadowband misalignment |
DataStreams: | sgpmfrsrE13.a0, sgpmfrsrE13.b1, sgpmfrsrlangleyE13.c1, sgpmfrsrlangplotE13.c1 |
Description: | On 5/12 and 5/13 the MFRSR (E13) had shading problems. These problems only affect the direct beam and diffuse radiation fields. You can see the problem vividly by looking at the direct beam (and diffuse radiation) for 5/12 -- you'll see a fuzziness in these fields centered about local noon. The shading problem was solved on about 05/13 at 2000 GMT. |
Measurements: | sgpmfrsrE13.a0:
sgpmfrsrE13.b1:
sgpmfrsrlangplotE13.c1:
sgpmfrsrlangleyE13.c1:
|