DQR ID | Subject | Data Streams Affected |
---|---|---|
D020908.7 | SGP/MFRSR/E7 - Data not quality assured | sgpmfrsrE7.a0, sgpmfrsrE7.b1 |
D020908.8 | SGP/MFRSR/E8 - Data not quality assured | sgpmfrsrE8.a0, sgpmfrsrE8.b1 |
D030708.1 | SGP/MFRSR/E7 - errors due to loggerboard failure | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1 |
D031124.1 | SGP/MFRSR/E7 - Shadowband Misalignment | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
D040225.15 | SGP/MFRSR/E7 - Sensor failure 415nm | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
D050121.2 | SGP/MFRSR/E7 - Low head temperature | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
D051220.2 | SGP/MFRSR/E7 - Instrument not shading properly | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
D051227.3 | SGP/MFRSR/E7 - Missing data | sgpmfrsrE7.a0, sgpmfrsrE7.b1 |
D051227.6 | SGP/MFRSR/E8 - Missing data | sgpmfrsrE8.a0, sgpmfrsrE8.b1, sgpmfrsrlangleyE8.c1, sgpmfrsrlangplotE8.c1 |
D090903.1 | SGP/MFRSR/E7 - Heater problem | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
D091109.1 | SGP/MFRSR/E7 - Shadowband misalignment | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsraod1michE7.c1, sgpmfrsrlangplotE7.c1 |
D100730.1 | SGP/MFRSR/E7 - Shadowband slipped on motor shaft | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsraod1michE7.c1, sgpmfrsrlangplotE7.c1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/1999 | 0000 | 03/31/2001 | 2359 |
Subject: | SGP/MFRSR/E7 - Data not quality assured |
DataStreams: | sgpmfrsrE7.a0, sgpmfrsrE7.b1 |
Description: | Data from October 1, 1999 through March 2001 from MFRSR.E7 should be used with caution. During this time period only minimal quality control and maintenance were provided to the SGP extended facility MFRSRs because these data were considered to be of questionable value under the best of circumstances. That decision was reversed in 2001 when Joe Michalsky identified a means to make the MFRSR data scientifically useable. In the interim, the MFRSRs developed problems with shading, leveling, calibration and all-out hardware failures and the stock of spare MFRSRs was depleted and not replenished. Most of the shading and leveling problems have now been corrected in the field as well as possible, but almost all of the extended facilty MFRSRs still need to be recalibrated or replaced. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/1999 | 0000 | 03/31/2001 | 2359 |
Subject: | SGP/MFRSR/E8 - Data not quality assured |
DataStreams: | sgpmfrsrE8.a0, sgpmfrsrE8.b1 |
Description: | Data from October 1, 1999 through March 2001 from MFRSR.E8 should be used with caution. During this time period only minimal quality control and maintenance were provided to the SGP extended facility MFRSRs because these data were considered to be of questionable value under the best of circumstances. That decision was reversed in 2001 when Joe Michalsky identified a means to make the MFRSR data scientifically useable. In the interim, the MFRSRs developed problems with shading, leveling, calibration and all-out hardware failures and the stock of spare MFRSRs was depleted and not replenished. Most of the shading and leveling problems have now been corrected in the field as well as possible, but almost all of the extended facilty MFRSRs still need to be recalibrated or replaced. |
Measurements: | sgpmfrsrE8.b1:
sgpmfrsrE8.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/24/2003 | 1514 | 07/15/2003 | 1940 |
Subject: | SGP/MFRSR/E7 - errors due to loggerboard failure |
DataStreams: | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1 |
Description: | Some head temperature readings during this time period have erroneous spikes or become very erratic due to a loggerboard failure. Other measurements may have been impacted as well and user should use data during these timeperiods with caution |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrE7.b1:
sgpmfrsrE7.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/16/2003 | 0000 | 12/17/2003 | 1920 |
Subject: | SGP/MFRSR/E7 - Shadowband Misalignment |
DataStreams: | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | This instrument suffered a severe shadowband misalignment problem during this timeperiod. Data is incorrect during all times when there is measurable direct normal irradiance. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrE7.00:
sgpmfrsrlangleyE7.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/20/2004 | 1300 | 09/27/2004 | 1840 |
Subject: | SGP/MFRSR/E7 - Sensor failure 415nm |
DataStreams: | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | The 415nm channel for diffuse, direct, and hemispheric measurements on occasion erroneously reports values of zero or shows spikes with respect to the other channels. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrE7.00:
sgpmfrsrlangleyE7.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/22/2004 | 1700 | 08/28/2008 | 1500 |
Subject: | SGP/MFRSR/E7 - Low head temperature |
DataStreams: | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | A hardware change occurred on 20040922. Following this change, the head temperature was not being well regulated. The temperature should stay around 40 deg C, but often, especially in winter, values less than 35 deg C were observed. There was never any obvious problems in the irradiance data, but that is not unexpected as any issues would be subtle. It is likely the new Langley style calibrations being employed in the c1 level data will account for the lower head temperatures. Even with this expectation, however, we are including c1 streams in this DQR so users are aware of potential issues. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrlangleyE7.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/25/2005 | 1330 | 12/27/2005 | 1900 |
Subject: | SGP/MFRSR/E7 - Instrument not shading properly |
DataStreams: | sgpmfrsrE7.00, sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | This particular shading problem wasn't very severe, and in fact wasn't noticed until Dec 2005. Careful examination of the data reveal it likely started around Oct 25, though at time it was so slight it is unlikely to have more than a negligible effect on the data. The start of November 2005 is when a data user should become concerned, though it isn't until December that the mentor suggests ignoring the diffuse and direct data altogether. The hours to be concerned with are from 1400-1900 UTC. Outside these hours data are OK. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrE7.00:
sgpmfrsrlangleyE7.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/27/1998 | 1503 | 04/01/1998 | 1704 |
04/07/1998 | 0303 | 04/15/1998 | 1704 |
07/15/1998 | 1303 | 07/21/1998 | 1639 |
09/07/1998 | 2103 | 09/16/1998 | 1704 |
11/01/1998 | 2303 | 11/03/1998 | 1439 |
03/13/1999 | 2303 | 03/15/1999 | 1439 |
05/07/1999 | 2103 | 05/11/1999 | 2104 |
08/06/1999 | 2314 | 08/08/1999 | 0105 |
03/11/2000 | 1503 | 03/14/2000 | 2304 |
06/19/2000 | 1105 | 07/06/2000 | 1504 |
12/12/2000 | 0103 | 12/14/2000 | 1904 |
12/17/2000 | 0503 | 12/19/2000 | 2104 |
12/21/2000 | 2303 | 12/23/2000 | 2104 |
12/24/2000 | 0303 | 12/27/2000 | 1904 |
04/22/2001 | 2201 | 04/30/2001 | 1255 |
11/19/2001 | 2017 | 12/18/2001 | 2002 |
01/30/2002 | 1502 | 02/12/2002 | 1802 |
05/08/2002 | 0801 | 05/21/2002 | 1602 |
07/19/2002 | 2102 | 07/22/2002 | 2002 |
10/02/2002 | 2002 | 10/09/2002 | 1700 |
02/06/2003 | 1202 | 02/11/2003 | 1902 |
02/28/2003 | 1602 | 03/07/2003 | 1802 |
04/19/2003 | 1302 | 04/22/2003 | 1703 |
08/29/2003 | 0602 | 09/05/2003 | 1658 |
04/24/2004 | 0402 | 04/30/2004 | 1608 |
07/04/2004 | 1302 | 07/09/2004 | 1703 |
10/31/2004 | 2202 | 11/02/2004 | 2003 |
01/05/2005 | 0102 | 01/11/2005 | 1954 |
10/27/2009 | 1600 | 11/02/2009 | 2359 |
Subject: | SGP/MFRSR/E7 - Missing data |
DataStreams: | sgpmfrsrE7.a0, sgpmfrsrE7.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/09/1997 | 1908 | 12/11/1997 | 1909 |
12/16/1997 | 0509 | 12/22/1997 | 2109 |
11/01/1998 | 2303 | 11/03/1998 | 1439 |
03/13/1999 | 2303 | 03/15/1999 | 1839 |
07/01/1999 | 0703 | 07/06/1999 | 1904 |
10/06/1999 | 1303 | 10/09/1999 | 2305 |
10/10/1999 | 2109 | 10/12/1999 | 2306 |
10/14/1999 | 2303 | 10/16/1999 | 0305 |
10/23/1999 | 1903 | 10/26/1999 | 1904 |
06/01/2000 | 1703 | 06/06/2000 | 1440 |
10/13/2000 | 1703 | 10/24/2000 | 1440 |
11/13/2000 | 1303 | 11/20/2000 | 1640 |
10/21/2001 | 0302 | 10/23/2001 | 1727 |
11/14/2001 | 1702 | 11/19/2001 | 1827 |
06/15/2002 | 2302 | 06/18/2002 | 1803 |
06/20/2002 | 0002 | 06/25/2002 | 2054 |
08/09/2002 | 2302 | 08/12/2002 | 1728 |
05/16/2003 | 0602 | 05/20/2003 | 1657 |
07/13/2003 | 2002 | 07/15/2003 | 1722 |
07/27/2003 | 2002 | 07/29/2003 | 1740 |
08/12/2003 | 1702 | 08/26/2003 | 2302 |
09/05/2003 | 1435 | 09/09/2003 | 1833 |
08/21/2004 | 1602 | 08/24/2004 | 1803 |
01/04/2005 | 2102 | 01/11/2005 | 2003 |
11/16/2005 | 1905 | 11/28/2005 | 0505 |
08/20/2007 | 0130 | 09/05/2007 | 1900 |
Subject: | SGP/MFRSR/E8 - Missing data |
DataStreams: | sgpmfrsrE8.a0, sgpmfrsrE8.b1, sgpmfrsrlangleyE8.c1, sgpmfrsrlangplotE8.c1 |
Description: | Data are missing and unrecoverable |
Measurements: | sgpmfrsrlangleyE8.c1:
sgpmfrsrlangplotE8.c1:
sgpmfrsrE8.b1:
sgpmfrsrE8.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/17/2009 | 1900 | 09/29/2009 | 1700 |
Subject: | SGP/MFRSR/E7 - Heater problem |
DataStreams: | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | Heater started acting up on 8/17. Data were unreliable when the heater was not functioning properly. Replacing the heater controller on 9/29 resolved the issue. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrlangleyE7.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/03/2009 | 1200 | 11/24/2009 | 1815 |
Subject: | SGP/MFRSR/E7 - Shadowband misalignment |
DataStreams: | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsraod1michE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | The head was pulled for calibration, and after re-installation it exhibited a rather severe shading problem. Avoid data during this period. Maintenance on 20091124 resolved the problem. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsraod1michE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrlangleyE7.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/21/2010 | 1230 | 03/31/2010 | 1800 |
Subject: | SGP/MFRSR/E7 - Shadowband slipped on motor shaft |
DataStreams: | sgpmfrsrE7.a0, sgpmfrsrE7.b1, sgpmfrsrlangleyE7.c1, sgpmfrsraod1michE7.c1, sgpmfrsrlangplotE7.c1 |
Description: | The shadowband slipped on the motor shaft to such a degree it was not shading the diffuser at all. Maintenance resolved the problem on 20100331. Do not use data covered by this DQR. |
Measurements: | sgpmfrsrE7.a0:
sgpmfrsrlangplotE7.c1:
sgpmfrsraod1michE7.c1:
sgpmfrsrE7.b1:
sgpmfrsrlangleyE7.c1:
|