DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D140114.2 | SGP/SASHE/C1 - Temperature controller disabled | sgpsashenirC1.b1 | Suspect |
D140822.2 | SGP/SASHE/C1 - Instrument problem | sgpsashenirC1.b1 | Incorrect |
D140823.1 | SGP/SASHE/C1 - Instrument off-line for repair | sgpsashenirC1.b1 | Missing |
D140823.2 | SGP/SASHE/C1 - Severe shadowband alignment issue | sgpsashenirC1.b1 | Incorrect |
D150121.1 | MAO/PGH/PVC/SGP/SASHE/C1 - Reprocess: Stray light contamination at extreme wavelengths | sgpsashenirC1.b1 | Suspect |
D151231.1 | SGP/SASHE/C1 - Hard Drive Failure | sgpsashenirC1.b1 | Missing |
D160104.7 | SGP Site Power Outage Due to Winter Storm | sgpsashenirC1.b1 | Does not affect quality |
D160825.4 | SGP/SASHE/C1 - Poor alignment, banding issues | sgpsashenirC1.b1 | Incorrect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/20/2013 | 1200 | 01/14/2014 | 2000 | Suspect |
Subject: | SGP/SASHE/C1 - Temperature controller disabled |
DataStreams: | sgpsashenirC1.b1 |
Description: | After servicing of the SASHe on Dec 20, 2013 a temperature controller was left in a stand-by mode. The situation was corrected slightly before 20:00 UT on Jan 14, 2014. Both the "vis" and "nir" spectrometers have some potential for temperature sensitivity but the impact should not be severe given that the system is housed within a climate controlled building and the temperature gradients are small. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/27/2014 | 1630 | 04/27/2014 | 2030 | Incorrect |
05/16/2014 | 1630 | 05/16/2014 | 2030 | Incorrect |
04/28/2014 | 1630 | 04/28/2014 | 2030 | Incorrect |
05/28/2014 | 1630 | 05/28/2014 | 2030 | Incorrect |
05/24/2014 | 1630 | 05/24/2014 | 2030 | Incorrect |
05/17/2014 | 1630 | 05/17/2014 | 2030 | Incorrect |
04/24/2014 | 1630 | 04/24/2014 | 2030 | Incorrect |
05/15/2014 | 1630 | 05/15/2014 | 2030 | Incorrect |
05/13/2014 | 1630 | 05/13/2014 | 2030 | Incorrect |
04/23/2014 | 1630 | 04/23/2014 | 2030 | Incorrect |
05/22/2014 | 1630 | 05/22/2014 | 2030 | Incorrect |
04/22/2014 | 1630 | 04/22/2014 | 2030 | Incorrect |
05/21/2014 | 1630 | 05/21/2014 | 2030 | Incorrect |
05/26/2014 | 1630 | 05/26/2014 | 2030 | Incorrect |
05/27/2014 | 1630 | 05/27/2014 | 2030 | Incorrect |
04/21/2014 | 1630 | 04/21/2014 | 2030 | Incorrect |
05/25/2014 | 1630 | 05/25/2014 | 2030 | Incorrect |
05/23/2014 | 1630 | 05/23/2014 | 2030 | Incorrect |
05/14/2014 | 1630 | 05/14/2014 | 2030 | Incorrect |
04/25/2014 | 1630 | 04/25/2014 | 2030 | Incorrect |
05/19/2014 | 1630 | 05/19/2014 | 2030 | Incorrect |
05/18/2014 | 1630 | 05/18/2014 | 2030 | Incorrect |
05/20/2014 | 1630 | 05/20/2014 | 2030 | Incorrect |
04/26/2014 | 1630 | 04/26/2014 | 2030 | Incorrect |
Subject: | SGP/SASHE/C1 - Instrument problem |
DataStreams: | sgpsashenirC1.b1 |
Description: | The SASHe azimuth stage began to exhibit wear and lose the ability to consistently track the sun, ultimately leading to incorrect identification of the direct and diffuse irradiance components - especially in the hours around solar noon. Total hemispheric irradiances are of acceptable quality. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/28/2014 | 2155 | 07/01/2014 | 1822 | Missing |
Subject: | SGP/SASHE/C1 - Instrument off-line for repair |
DataStreams: | sgpsashenirC1.b1 |
Description: | Instrument was returned for repair of azimuth stage. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/03/2014 | 1200 | 08/12/2014 | 1559 | Incorrect |
Subject: | SGP/SASHE/C1 - Severe shadowband alignment issue |
DataStreams: | sgpsashenirC1.b1 |
Description: | A severe shadowband misalignment prevented identification of direct and diffuse irradiance components for the entire solar day. Total hemispheric irradiance is nominally acceptable. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/22/2011 | 0000 | 08/19/2014 | 2359 | Suspect |
Subject: | MAO/PGH/PVC/SGP/SASHE/C1 - Reprocess: Stray light contamination at extreme wavelengths |
DataStreams: | sgpsashenirC1.b1 |
Description: | The irradiance measurements at near the limits of the spectrometer wavelength ranges are subject to contamination from stray light within the spectrometer itself. This affects not only the basic measurement, but also can affect the calibration such that reported values may be either higher or lower than actual. Typically, this yields a high bias for measurements at the low wavelength limit and a low bias at the high wavelength limit. This causes opposite effects for AOD with a low bias at low wavelength and a high bias for high wavelengths. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/21/2015 | 0000 | 12/04/2015 | 0000 | Missing |
Subject: | SGP/SASHE/C1 - Hard Drive Failure |
DataStreams: | sgpsashenirC1.b1 |
Description: | Hard drive failed. No data collected at all. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/26/2015 | 0000 | 01/01/2016 | 2359 | Does not affect quality |
Subject: | SGP Site Power Outage Due to Winter Storm |
DataStreams: | sgpsashenirC1.b1 |
Description: | On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result was very very slick roads and mass power outages. The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th. The power was restored on 7:56 PM CDT on Wednesday, December 30th Site Emergency procedures were activated and Technicians drained water out of instrument reservoirs and other measures as needed, early Monday morning. On Wednesdays as roads and power started was restored to much of the areas east of I-35 , Site Technicians performed maintenance on several Extended Facilities. During this period, data are potentially missing, incorrect, or suspect. Carefully inspect the data before use. |
Measurements: | sgpsashenirC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/02/2016 | 0000 | 08/17/2016 | 1000 | Incorrect |
Subject: | SGP/SASHE/C1 - Poor alignment, banding issues |
DataStreams: | sgpsashenirC1.b1 |
Description: | Banding issues leading to imperfect shading dominate the data for this period. At times the banding issues were quite subtle leading to problems only for limited periods of the day especially when the sun is low and this leads to serious calibration errors. |
Measurements: | sgpsashenirC1.b1:
|