DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D030527.2 | SGP/SIRS/E27 - Instrument problem, Shadowband Misalignment | sgpsirsE27.b1 | Suspect |
D030901.1 | SGP/SIRS/E19 - Shadowband Misalignment | sgpsirsE19.b1 | Incorrect |
D030917.17 | SGP/SIRS/E13 - Missing data due to Ice storm and clock problems | sgpsirsE13.b1 | Missing |
D030917.18 | SGP/SIRS/E18 - Missing data due to Ice storm and clock problems | sgpsirsE18.b1 | Missing |
D030917.19 | SGP/SIRS/E2 - Missing data due to Ice storm and clock problems | sgpsirsE2.b1 | Missing |
D030922.4 | SGP/SIRS/E27 - Tracker Misalignment | sgpsirsE27.b1 | Incorrect |
D030922.5 | SGP/SIRS/E2 - Ventilator Fan Failure | sgpsirsE2.b1 | Incorrect |
D031020.2 | SGP/SIRS/E9 - Possible instrument drift | sgpsirsE9.b1 | Suspect |
D031020.3 | SGP/SIRS/E18 - Instrument noise problem | sgpsirsE18.b1 | Suspect |
D031124.8 | SGP/SIRS/E7 - Unknown problem with downwelling shortwave instrument (Eppley PSP) | sgpsirsE7.b1 | Incorrect |
D031208.6 | SGP/SIRS/E4 - Shadowband Misalignment | sgpsirsE4.b1 | Incorrect |
D040205.1 | SGP/SIRS/E1/E2/E3/E5/E8 - Snow on Radiometers | sgpsirsE2.b1, sgpsirsE8.b1 | Suspect |
D040226.1 | SGP/SIRS/E9 - PSP dome contamination | sgpsirsE9.b1 | Incorrect |
D040227.3 | SGP/SIRS/E2 - Reprocessing Notice (RID 293) | sgpsirsE2.b1 | Does not affect quality |
D040227.4 | SGP/SIRS/E15 - PSP dome contamination | sgpsirsE15.b1 | Incorrect |
D040320.2 | SGP/SIRS/E8 - Possible Contamination of DS PSP instrument | sgpsirsE8.b1 | Suspect |
D040405.2 | SGP/SIRS/E7 - PSP dome contamination | sgpsirsE7.b1 | Incorrect |
D040420.4 | SGP/SIRS/E27 - incorrect tracking | sgpsirsE27.b1 | Incorrect |
D040525.12 | SGP/SIRS/E19 - Metadata errors | sgpsirsE19.b1 | Does not affect quality |
D040608.3 | SGP/SIRS/E15 - NIP cable failure results in missing data | sgpsirsE15.b1 | Missing |
D040615.5 | SGP/SIRS/E12 - Incorrect Times | sgpsirsE12.b1 | Suspect |
D040621.3 | SGP/SIRS/E7 - Reprocessed: Corrected downwelling longwave calibrations | sgpsirsE7.b1 | Does not affect quality |
D040706.1 | SGP/SIRS/E22 - Failed NIP sensor cable | sgpsirsE22.b1 | Incorrect |
D040831.2 | SGP/SIRS/E7 - Reprocessing Notice (RID 287) | sgpsirsE7.b1 | Does not affect quality |
D040831.3 | SGP/SIRS/E8 - Reprocessing Notice (RID 291) | sgpsirsE8.b1 | Does not affect quality |
D040907.1 | SGP/SIRS/C1/E13 - Incorrect calibration coefficients | sgpsirsE13.b1 | Incorrect |
D050109.3 | SGP/SIRS/E12 - Ice obscured NIP | sgpsirsE12.b1 | Incorrect |
D050114.5 | SGP/SIRS/E15 - Failed NIP cable | sgpsirsE15.b1 | Incorrect |
D050117.1 | SGP/SIRS/E9 - Unknown -failed PSP ventilator fan | sgpsirsE9.b1 | Incorrect |
D050118.1 | SGP/SIRS/E20 - Reprocessed and Corrected: Incorrect calibration coefficients | sgpsirsE20.b1 | Does not affect quality |
D050131.23 | SGP/SIRS/E15 - Ice storm | sgpsirsE15.b1 | Missing |
D050131.25 | SGP/SIRS/E2 - Ice storm | sgpsirsE2.b1 | Missing |
D050131.28 | SGP/SIRS/E8 - Ice storm | sgpsirsE8.b1 | Missing |
D050131.29 | SGP/SIRS/E9 - Ice storm | sgpsirsE9.b1 | Missing |
D050205.3 | SGP/SIRS/E2 - Tracker mis-alignment | sgpsirsE2.b1 | Incorrect |
D050205.4 | SGP/SIRS/E18 - Possible PSP dome contamination | sgpsirsE18.b1 | Suspect |
D050206.3 | SGP/SIRS/E13 - Monthly Report | sgpsirsE13.b1 | Does not affect quality |
D050218.1 | SGP/SIRS/E7 - Reprocessed: Corrected Downwelling Longwave calibrations | sgpsirsE7.b1 | Does not affect quality |
D050303.1 | SGP/SIRS/E2 - Reprocessed: Incorrect DIR calibration coefficients | sgpsirsE2.b1 | Does not affect quality |
D050307.3 | SGP/SIRS/E7 - Downwelling Shortwave incorrect | sgpsirsE7.b1 | Incorrect |
D050414.2 | SGP/SIRS/E9 - Downwelling Shortwave values low | sgpsirsE9.b1 | Suspect |
D050429.1 | SGP/SIRS/E12 - Reprocessed and Corrected: Incorrect calibrations | sgpsirsE12.b1 | Does not affect quality |
D050520.1 | SGP/SIRS/E22 - Intermittent upwelling longwave data loss | sgpsirsE22.b1 | Missing |
D050601.1 | SGP/SIRS/E13 - Reprocessed and Corrected: incorrect calibrations | sgpsirsE13.b1 | Does not affect quality |
D050606.1 | SGP/SIRS/E7 - Downwelling longwave incorrect | sgpsirsE7.b1 | Incorrect |
D050621.1 | SGP/SIRS/E9 - Sensor cable failure | sgpsirsE9.b1 | Incorrect |
D050726.1 | SGP/SIRS/E4 - Dirt on Dome | sgpsirsE4.b1 | Suspect |
D050801.1 | SGP/SIRS/E8 - Downwelling Shortwave hemispheric (PSP) Dome Contamination | sgpsirsE8.b1 | Suspect |
D050810.3 | SGP/SIRS/E20 - Downwelling Shortwave PSP Damaged by Lightning | sgpsirsE20.b1 | Incorrect |
D060403.3 | SGP/SIRS/E19 - Ventilator failure | sgpsirsE19.b1 | Suspect |
D060403.4 | SGP/SIRS/E20 - Instrument noise problem | sgpsirsE20.b1 | Suspect |
D060523.1 | SGP/SIRS/E8 - Instrument cable problem | sgpsirsE8.b1 | Incorrect |
D060630.10 | SGP/SIRS/E2 - Reprocessed: Longwave Calibration error | sgpsirsE2.b1 | Does not affect quality |
D060630.12 | SGP/SIRS/E4 - Reprocessed: Longwave Calibration error | sgpsirsE4.b1 | Does not affect quality |
D060630.15 | SGP/SIRS/E7 - Reprocessed: Longwave Calibration error | sgpsirsE7.b1 | Does not affect quality |
D060630.16 | SGP/SIRS/E8 - Reprocessed: Longwave Calibration error | sgpsirsE8.b1 | Does not affect quality |
D060630.17 | SGP/SIRS/E9 - Reprocessed: Longwave Calibration error | sgpsirsE9.b1 | Does not affect quality |
D060630.20 | SGP/SIRS/E12 - Reprocessed: Longwave Calibration error | sgpsirsE12.b1 | Does not affect quality |
D060630.21 | SGP/SIRS/E13 - Reprocessed: Longwave Calibration error | sgpsirsE13.b1 | Does not affect quality |
D060630.22 | SGP/SIRS/E15 - Reprocessed: Longwave Calibration error | sgpsirsE15.b1 | Does not affect quality |
D060630.24 | SGP/SIRS/E18 - Reprocessed: Longwave Calibration error | sgpsirsE18.b1 | Does not affect quality |
D060630.25 | SGP/SIRS/E19 - Reprocessed: Longwave Calibration error | sgpsirsE19.b1 | Does not affect quality |
D060630.26 | SGP/SIRS/E20 - Reprocessed: Longwave Calibration error | sgpsirsE20.b1 | Does not affect quality |
D060630.28 | SGP/SIRS/E22 - Reprocessed: Longwave Calibration error | sgpsirsE22.b1 | Does not affect quality |
D060630.30 | SGP/SIRS/E27 - Reprocessed: Longwave Calibration error | sgpsirsE27.b1 | Does not affect quality |
D060718.2 | SGP/SIRS/E9 - Tracker Failure | sgpsirsE9.b1 | Incorrect |
D061115.2 | SGP/SIRS/E18 - Upwelling SW cable severed | sgpsirsE18.b1 | Incorrect |
D061208.1 | SGP/SIRS/E7 - Instrument noise | sgpsirsE7.b1 | Suspect |
D070112.6 | SGP/SIRS/E20 - Noise in Upwelling longwave data | sgpsirsE20.b1 | Suspect |
D070130.2 | SGP/SIRS/E18 - Noise in upwelling longwave data | sgpsirsE18.b1 | Suspect |
D070312.1 | SGP/SIRS/E9 - Tracker failure | sgpsirsE9.b1 | Incorrect |
D070320.1 | SGP/SIRS/E22 - Reprocessed and Corrected: Incorrect calibration coefficients | sgpsirsE22.b1 | Does not affect quality |
D070329.3 | SGP/SIRS/E9 - Downwelling SW cable problem | sgpsirsE9.b1 | Incorrect |
D070411.2 | SGP/SIRS/E7 - SIRS Power supply problems | sgpsirsE7.b1 | Missing |
D070615.2 | SGP/SIRS/E15 - NIP (short_direct_normal) failure | sgpsirsE15.b1 | Incorrect |
D070814.1 | SGP/SIRS/E7 - Downwelling shortwave data dropouts | sgpsirsE7.b1 | Incorrect |
D070925.1 | SGP/SIRS/E18 - NIP cable failure | sgpsirsE18.b1 | Incorrect |
D070927.1 | SGP/SIRS/E20 - Failed tracker and improperly configured tracker | sgpsirsE20.b1 | Incorrect |
D070927.2 | SGP/SIRS/E12 - Power supply problem affecting solar tracker | sgpsirsE12.b1 | Incorrect |
D071211.1 | SGP/SIRS/E19 - Reprocessed and Corrected: Incorrect calibration coefficients | sgpsirsE19.b1 | Does not affect quality |
D071217.3 | SGP/SIRS/E22 - Tracker failure | sgpsirsE22.b1 | Incorrect |
D071220.2 | SGP/SIRS/E12 - Failed ventilator fan | sgpsirsE12.b1 | Suspect |
D071221.2 | SGP/SIRS/E18 - Instrument noise problem | sgpsirsE18.b1 | Incorrect |
D071221.3 | SGP/SIRS/E19 - Tracker failure | sgpsirsE19.b1 | Incorrect |
D080104.1 | SGP/SIRS/E13 - Multiplexer failure | sgpsirsE13.b1 | Incorrect |
D080128.1 | SGP/SIRS/C1/E1/E10/E11/E12/E13/E15/E16/E18/E19/E2/E20/E21/E22/E24/E25/E27/E3/E4/E5/E6/E7/E8/E9 - Ice | sgpsirsE27.b1, sgpsirsE20.b1, sgpsirsE19.b1, sgpsirsE22.b1, sgpsirsE7.b1, sgpsirsE18.b1, sgpsirsE9.b1, sgpsirsE12.b1, sgpsirsE4.b1, sgpsirsE15.b1, sgpsirsE13.b1, sgpsirsE8.b1, sgpsirsE2.b1 | Suspect |
D080212.3 | SGP/SIRS/E4 - UPS failure | sgpsirsE4.b1 | Incorrect |
D080212.4 | SGP/SIRS/E18 - NIP condensation problem | sgpsirsE18.b1 | Incorrect |
D080317.1 | SGP/SIRS/E7 - Downwelling Shortwave failure | sgpsirsE7.b1 | Incorrect |
D080422.2 | SGP/SIRS/E4 - Tracker failure | sgpsirsE4.b1 | Incorrect |
D080515.1 | SGP/SIRS/E20 - Intermittent missing data | sgpsirsE20.b1 | Does not affect quality |
D080602.1 | SGP/SIRS/E22 - Tracker failure | sgpsirsE22.b1 | Incorrect |
D080610.1 | SGP/SIRS/E20 - Missing data | sgpsirsE20.b1 | Missing |
D080617.3 | SGP/SIRS/E4 - Tracker inoperative | sgpsirsE4.b1 | Incorrect |
D080625.2 | SGP/SIRS/E8 - Ventilator Fan Failure | sgpsirsE8.b1 | Suspect |
D080626.1 | SGP/SIRS/E18 - Ventilator Fan Failure | sgpsirsE18.b1 | Suspect |
D081013.4 | SGP/SIRS/E9 - Intermittent downwelling diffuse data | sgpsirsE9.b1 | Suspect |
D090424.2 | SGP/SIRS/E4 - Tracker inoperative | sgpsirsE4.b1 | Incorrect |
D090424.3 | SGP/SIRS/E9 - Incorrect timestamp | sgpsirsE9.b1 | Incorrect |
D090514.2 | SGP/SIRS/E12 - NIP failure | sgpsirsE12.b1 | Incorrect |
D090520.2 | SGP/SIRS/E7 - NIP failure | sgpsirsE7.b1 | Incorrect |
D090521.1 | SGP/SIRS/E27 - Reprocessed and Corrected: Incorrect calibration coefficients | sgpsirsE27.b1 | Does not affect quality |
D090522.2 | SGP/SIRS/E18 - Tracker failure | sgpsirsE18.b1 | Incorrect |
D090609.1 | SGP/SIRS/E27 - Tracker failure | sgpsirsE27.b1 | Incorrect |
D090720.1 | SGP/SIRS/E9 - Tracker failure | sgpsirsE9.b1 | Incorrect |
D090818.2 | SGP/SIRS/E18 - Reprocessed and Corrected: Incorrect calibrations | sgpsirsE18.b1 | Does not affect quality |
D090929.4 | SGP/SIRS/E18 - Dirt on dome | sgpsirsE18.b1 | Suspect |
D100128.1 | SGP/SIRS/E7 - Upwelling Longwave inconsistent | sgpsirsE7.b1 | Incorrect |
D100325.1 | SGP/SIRS/E9 - Downwelling SW sensor alignment/level | sgpsirsE9.b1 | Suspect |
D100628.2 | SGP/SIRS/E9 - TimeCheck Error | sgpsirsE9.b1 | Suspect |
D100811.1 | SGP/SIRS/E7 - NIP connector failure | sgpsirsE7.b1 | Incorrect |
D101103.2 | SGP/SIRS/E19 - Instrument mux problem | sgpsirsE19.b1 | Incorrect |
D101214.1 | SGP/SIRS/E19 - Intermittent bad data | sgpsirsE19.b1 | Suspect |
D110613.2 | SGP/SIRS/E15 - NIP failure | sgpsirsE15.b1 | Incorrect |
D110725.2 | SGP/SIRS/E13 - NIP damaged by lightning strike | sgpsirsE13.b1 | Incorrect |
D110805.2 | SGP/SIRS/E20 - Upwelling LW incorrect | sgpsirsE20.b1 | Incorrect |
D110902.3 | SGP/SIRS/E20 - Downwelling LW incorrect | sgpsirsE20.b1 | Incorrect |
D111115.3 | SGP/SIRS/E13 - Intermittent upwelling longwave | sgpsirsE13.b1 | Incorrect |
D120306.1 | SGP/SIRS/E9 - Tracker failure | sgpsirsE9.b1 | Incorrect |
D120720.1 | SGP/SIRS/E35 - Upwelling longwave resistor problem | sgpsirsE35.b1 | Incorrect |
D121003.1 | SGP/SIRS/E13 - Instrument problem | sgpsirsE13.b1 | Suspect |
D121003.2 | SGP/SIRS/E13 - Reprocessed: Incorrect UIR calibration | sgpsirsE13.b1 | Does not affect quality |
D121016.1 | SGP/SIRS/E32 - Reprocessed: Partial shading | sgpsirsE32.b1 | Does not affect quality |
D121018.8 | SGP/SIRS/E12 - Shadowband misalignment | sgpsirsE12.b1 | Incorrect |
D121211.1 | SGP/SIRS/E13 - Upwelling LW hemisp connection | sgpsirsE13.b1 | Incorrect |
D121212.1 | SGP/SIRS/E35 - Reprocessed: Partial shading | sgpsirsE35.b1 | Does not affect quality |
D121212.2 | SGP/SIRS/E35 - Reprocessed: Partial shading | sgpsirsE35.b1 | Does not affect quality |
D121212.3 | SGP/SIRS/E36 - Reprocessed: Partial shading | sgpsirsE36.b1 | Does not affect quality |
D121221.1 | SGP/SIRS/E18 - Multiplexer wiring problem | sgpsirsE18.b1 | Incorrect |
D130108.5 | SGP/SIRS/E34 - Tracker failure | sgpsirsE34.b1 | Incorrect |
D130201.3 | SGP/SIRS/E15 - Tracker misaligned | sgpsirsE15.b1 | Incorrect |
D130329.1 | SGP/SIRS/E13 - UIR Instrument problem | sgpsirsE13.b1 | Incorrect |
D130612.1 | SGP/SIRS/E15 - Missing NIP data | sgpsirsE15.b1 | Missing |
D130618.1 | SGP/SIRS/E9 - Tracker inoperative | sgpsirsE9.b1 | Incorrect |
D130930.3 | SGP/SIRS/E34 - Ventilation fan failure | sgpsirsE34.b1 | Suspect |
D140127.2 | SGP/SIRS/E32 - Reprocessed: Incorrect longwave calibration coefficients | sgpsirsE32.b1 | Does not affect quality |
D140127.3 | SGP/SIRS/E34 - Reprocessed: Incorrect LW calibration coefficients | sgpsirsE34.b1 | Does not affect quality |
D140127.4 | SGP/SIRS/E35 - Reprocessed: Incorrect LW calibration coefficients | sgpsirsE35.b1 | Does not affect quality |
D140127.5 | SGP/SIRS/E36 - Reprocessed: Incorrect LW calibration coefficients | sgpsirsE36.b1 | Does not affect quality |
D140319.1 | SGP/SIRS/E32 - SIRS data logger program not running | sgpsirsE32.b1 | Missing |
D140417.2 | SGP/SIRS/E15 - tracker failure | sgpsirsE15.b1 | Missing |
D140509.2 | SGP/SIRS/E36 - Instrument problem | sgpsirsE36.b1 | Incorrect |
D140604.1 | SGP/SIRS/E15 - Data missing | sgpsirsE15.b1 | Missing |
D140724.1 | SGP/SIRS/E15 - Broken wire resulting in missing data | sgpsirsE15.b1 | Incorrect |
D140728.4 | SGP/SIRS/E15 - Solar tracker not functioning | sgpsirsE15.b1 | Incorrect |
D141111.1 | SGP/SIRS/E32 - Instrument problem | sgpsirsE32.b1 | Incorrect |
D141119.1 | SGP/SIRS/E35 - Instrument problem | sgpsirsE35.b1 | Incorrect |
D141124.1 | SGP/SIRS/E15 - Instrument problem | sgpsirsE15.b1 | Incorrect |
D151117.1 | SGP/SIRS/E12 - Tracker failure | sgpsirsE12.b1 | Incorrect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/16/2003 | 0000 | 06/18/2003 | 1845 | Suspect |
Subject: | SGP/SIRS/E27 - Instrument problem, Shadowband Misalignment |
DataStreams: | sgpsirsE27.b1 |
Description: | Downwelling and Upwelling longwave values are somewhat noisy due to noisy PIR (pygeometer) case and dome thermistor measurements on both the upwelling and downwelling PIRs. This problem dates back to the beginning of the SIRS E27 data stream. |
Measurements: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/28/2003 | 1200 | 09/04/2003 | 1526 | Incorrect |
Subject: | SGP/SIRS/E19 - Shadowband Misalignment |
DataStreams: | sgpsirsE19.b1 |
Description: | The solar tracker appears to have failed on 8/28. Fuse replaced on 09/04/03 and tracker returned to service at 15:26GMT |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/13/2002 | 1806 | 03/14/2002 | 1607 | Missing |
03/09/2002 | 2006 | 03/10/2002 | 1902 | Missing |
Subject: | SGP/SIRS/E13 - Missing data due to Ice storm and clock problems |
DataStreams: | sgpsirsE13.b1 |
Description: | Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/09/2002 | 2102 | 03/10/2002 | 2040 | Missing |
03/13/2002 | 1702 | 03/14/2002 | 1604 | Missing |
Subject: | SGP/SIRS/E18 - Missing data due to Ice storm and clock problems |
DataStreams: | sgpsirsE18.b1 |
Description: | Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/13/2002 | 1805 | 03/14/2002 | 1605 | Missing |
03/09/2002 | 2104 | 03/10/2002 | 2004 | Missing |
Subject: | SGP/SIRS/E2 - Missing data due to Ice storm and clock problems |
DataStreams: | sgpsirsE2.b1 |
Description: | Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/14/2003 | 1200 | 10/15/2003 | 1730 | Incorrect |
Subject: | SGP/SIRS/E27 - Tracker Misalignment |
DataStreams: | sgpsirsE27.b1 |
Description: | Suntracker failed at this facility. The suntracker was reset on 9/17, but this only temporarily fixed the problem and the tracker began failing again 9/18. Tracker was reset and realigned on 10/15/03 17:30GMT and has been operating properly since. |
Measurements: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/14/2003 | 1000 | 09/25/2003 | 1543 | Incorrect |
Subject: | SGP/SIRS/E2 - Ventilator Fan Failure |
DataStreams: | sgpsirsE2.b1 |
Description: | Measured downwelling shortwave data was very questionable, reporting nighttime values as low as -50 W/m^2, while differing from calculated downwelling shortwave by as much as 50 W/m^2 lower during the day. The first indication of a problem was around 10 UTC, 9/14, when measured DS values suddenly dropped below 10 W/m^2 for about a 2 hour period before sunrise, then were consistently lower than calculated DS by as much as 40 W/m^2 during the day. The problem got progressively worse with time until the ventilator fan was replace on 9/25. Ventilator fan failure changed the fundamental operating characteristics of this PSP and resulted in unpredictable biased measurements which cannot be corrected without additional empirical characterization of the radiometer in question. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/14/2003 | 0000 | 10/21/2003 | 1600 | Suspect |
Subject: | SGP/SIRS/E9 - Possible instrument drift |
DataStreams: | sgpsirsE9.b1 |
Description: | Downwelling shortwave values were too low, dropping below -10 W/m^2 at night and reading 30-50 W/m^2 lower than DS calculated from direct and diffuse measurements during the day. This problem became more noticeable beginning on 10/14, when nighttime values began to drop below -10 W/m^2 consistently. The problem was corrected with the annual instrument changout on 10/23/03. Although the downwelling shortwave instrument (DS) appears to be the problem a more likely scenario is that the cable connections became thermopile. The instrument changeout possibly reseated and corrected any poor connections. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/09/2003 | 1000 | 10/20/2003 | 0000 | Suspect |
Subject: | SGP/SIRS/E18 - Instrument noise problem |
DataStreams: | sgpsirsE18.b1 |
Description: | Upwelling longwave data was somewhat noisy during this period. There was a direct relation to the case and dome thermistor measurements for the upwelling longwave PIR (UIR). Data quality does not appear to be greatly affected overall, though instantaneous values had greater than usual variability. The noise disappeared on 10/19. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/21/2003 | 0317 | 12/03/2003 | 0000 | Incorrect |
Subject: | SGP/SIRS/E7 - Unknown problem with downwelling shortwave instrument (Eppley PSP) |
DataStreams: | sgpsirsE7.b1 |
Description: | Beginning around 0317 UTC, 11/21, downwelling shortwave values became anamolously high during the night, when they should have been around zero. Values returned to normal after SGP technicians reseated this instruments connections at 1215UTC 12/02/2003. The following day's data appeared normal. Appears that a poor connection was the culprit this time. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/04/2003 | 1700 | 12/08/2003 | 1200 | Incorrect |
Subject: | SGP/SIRS/E4 - Shadowband Misalignment |
DataStreams: | sgpsirsE4.b1 |
Description: | The solar tracker failed on 12/4, resulting in bad direct and diffuse measurements. The tracker started working again on 12/8 without Ops intervention. Technician maintenance checks on 12/3 and 12/17 reported correct tracker operation. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/02/2004 | 1200 | 02/02/2004 | 2000 | Suspect |
Subject: | SGP/SIRS/E1/E2/E3/E5/E8 - Snow on Radiometers |
DataStreams: | sgpsirsE2.b1, sgpsirsE8.b1 |
Description: | A large discrepancy between the measured values of downwelling hemispheric shortwave radiation and the derived values occurred on 2/02 at the listed sites. The difference is on the order of 200 Wm^(-2) at E2 and to a lesser extent at the other affected stations. This problem most likely resulted from a previous day or night snow/ice accumulation on the Direct(NIP), Downwelling Sortwave(PSP) and/or Downwelling Diffuse(8-48) instruments. During the morning hours of 02/02, Approx 1300-2000GMT, snow/ice was covering one or more of these three instruments resulting in faulty readings and incorrect derived downwelling shortwave values as well. Instrument readings indicate the problem resolved itself later in the day through normal meltoff. |
Measurements: | sgpsirsE2.b1:
sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/20/2004 | 1600 | 02/23/2004 | 0500 | Incorrect |
Subject: | SGP/SIRS/E9 - PSP dome contamination |
DataStreams: | sgpsirsE9.b1 |
Description: | Measured values of diffuse shortwave downwelling radiation fluctuated below derived values of downwelling shortwave radiation by 50 W/m^2 during the afternoon hours under clear conditions. SMOS precipitation and wind speed data reveals rain and wind the night before on 02/20/03 0100 GMT probably contaminated the PSP dome with dirt. Precipitation of .25mm on 02/23/04 0300 seems to have effectively cleared the PSP dome since PSP data on 02/24/04 compares correctly to direct and diffuse components. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/12/2004 | 1612 | 03/25/2004 | 1600 | Does not affect quality |
Subject: | SGP/SIRS/E2 - Reprocessing Notice (RID 293) |
DataStreams: | sgpsirsE2.b1 |
Description: | See below for details of reprocessing that was completed on 20150929. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements were : downwelling diffuse (DD), upwelling shortwave(US), direct normal (NIP) and downwelling shortwave(DS) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*118.11 US(corrected) = (US/113.19)*118.21 NIP(corrected)= (NIP/120.17)*119.08 DS(corrected) = (DS/118.46)*117.33 |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/20/2004 | 1900 | 02/29/2004 | 1700 | Incorrect |
Subject: | SGP/SIRS/E15 - PSP dome contamination |
DataStreams: | sgpsirsE15.b1 |
Description: | PSP dome was dirty. Afternoon values of downwelling shortwave radiation were less than derived values by about 50 W/m^2. PSP values compare well to derived PSP values after precip event on 02/29/04 1300-1600 GMT. Maintenance on 03/02 1713 GMT revealed no unusual contamination. Precip on 02/29 likely effectively cleaned the PSP dome. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/15/2004 | 1500 | 03/31/2004 | 1200 | Suspect |
Subject: | SGP/SIRS/E8 - Possible Contamination of DS PSP instrument |
DataStreams: | sgpsirsE8.b1 |
Description: | Downwelling hemispheric shortwave values drop at about 1500 GMT under clear sky conditions, typically from about 14:00GMT to 16:00GMT. This may be due to a dirty PSP but maintenance on 03/23/04 18:11 GMT revealed no more than typical light dust. The problem was essentially undetectable by 03/31/04 12:00. The time of day that the problem exists appears to be an exagerated PSP cosine response. No obvious reason presents why the problem appeared and then disappeared within this two week period. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/30/2004 | 1430 | 04/06/2004 | 2100 | Incorrect |
Subject: | SGP/SIRS/E7 - PSP dome contamination |
DataStreams: | sgpsirsE7.b1 |
Description: | Values of hemispheric downwelling shortwave radiation differed from derived values by 45 W/m^2 on 03/30 around 1430 GMT under clear sky conditions due to dirt on the dome. Maintenance reported cleaning heavy dust from dome on 04/06 2030 GMT. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/27/2004 | 1500 | 11/05/2004 | 1900 | Incorrect |
04/14/2004 | 1700 | 09/15/2004 | 1650 | Incorrect |
Subject: | SGP/SIRS/E27 - incorrect tracking |
DataStreams: | sgpsirsE27.b1 |
Description: | The solar tracker at E27 was not functioning properly. The problem affected tracker mounted instruments: downwelling diffuse 8-48 and direct normal pyrheliometer NIP. After tracker adjustment on 4/14/2004 1700GMT the tracker stopped tracking properly during afternoon hours. Attempts to correct tracker operation throughout the failure period resulted in variations on incorrect tracker operation. No replacement tracker was available. After adjustment on 9/15/2004 the tracker problem was resolved. It is unclear what, other than typical az and zen tracker software changes by field techs, corrected the problem. This problem period corresponds to the first time range specified (4/14 to 9/15). On 10/27/2004 a replacement tracker was installed at E27. Technical difficulties kept tracker out of service until 11/05/2004. The replacement tracker at E27 was put into serice by the field techs on 11/05/2004 1830GMT. The tracker has been tracking correctly since this time. This problem period corresponds to the second time range (10/27 to 11/05). |
Measurements: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/01/2002 | 0000 | 05/06/2003 | 2359 | Does not affect quality |
Subject: | SGP/SIRS/E19 - Metadata errors |
DataStreams: | sgpsirsE19.b1 |
Description: | The latitude, longitude and altitude of the El Reno (E19) site were incorrectly entered into the ARM database. The correct location of the SIRS.E19 instrument is: Lat: 35.557N Lon: 98.017W Alt: 421m |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/03/2004 | 1122 | 06/08/2004 | 1700 | Missing |
Subject: | SGP/SIRS/E15 - NIP cable failure results in missing data |
DataStreams: | sgpsirsE15.b1 |
Description: | The NIP began reporting -9999 (missing) for all direct normal downwelling shortwave radiation. Maintenance 6/8 revealed a broken cable. Cable was repaired and NIP data returned to normal. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/19/2004 | 2212 | 03/10/2004 | 2247 | Suspect |
Subject: | SGP/SIRS/E12 - Incorrect Times |
DataStreams: | sgpsirsE12.b1 |
Description: | The ntpd server (time adjustment) stopped working on Feb. 19th at 22:12:16 GMT, and the clock was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on March 10th. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/20/2004 | 1825 | 06/29/2004 | 1915 | Does not affect quality |
Subject: | SGP/SIRS/E7 - Reprocessed: Corrected downwelling longwave calibrations |
DataStreams: | sgpsirsE7.b1 |
Description: | While attempting to correct calibration coefficients (see D040831.2) a new datalogger program was loaded which applied the wrong serial number and calibration coefficients to the downwelling longwave measurement. The data were reprocessed in September 2006 with the correct downwelling longwave calibrations and archived on 20061003. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/30/2004 | 0156 | 07/07/2004 | 1800 | Incorrect |
Subject: | SGP/SIRS/E22 - Failed NIP sensor cable |
DataStreams: | sgpsirsE22.b1 |
Description: | The suntracker was driven past it optical limit switch and pulled the direct normal (NIP) instrument cable from its connector. |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/20/2004 | 1845 | 04/20/2004 | 1825 | Does not affect quality |
Subject: | SGP/SIRS/E7 - Reprocessing Notice (RID 287) |
DataStreams: | sgpsirsE7.b1 |
Description: | See below for details of reprocessing that was completed on 20150929. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were : downwelling diffuse (8-48), upwelling shortwave(PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*108.50 US(corrected) = (US/113.19)*110.10 NIP(corrected)= (NIP/120.17)*122.26 DS(corrected) = (DS/118.46)*122.56 |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/10/2004 | 1825 | 04/20/2004 | 1825 | Does not affect quality |
Subject: | SGP/SIRS/E8 - Reprocessing Notice (RID 291) |
DataStreams: | sgpsirsE8.b1 |
Description: | See below for details of reprocessing that was completed on 20150929. Original DQR category: 4 (Red, Incorrect). ----------------------------------------------------------- During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)*116.37 US(corrected) = (US/113.19)*121.78 NIP(corrected)= (NIP/120.17)*122.47 DS(corrected) = (DS/118.46)*122.34 |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/27/2004 | 1830 | 09/07/2004 | 2130 | Incorrect |
Subject: | SGP/SIRS/C1/E13 - Incorrect calibration coefficients |
DataStreams: | sgpsirsE13.b1 |
Description: | After the DIR changeout on 8/27, the DLH measurements at the central facility vary significantly between pyrgeometers by as much as 65 Wm^(-2). It was discovered that the two downwelling pyrgeometers destined for C1 and E13 may have been swapped during installation. The instrument mentor is unsure of applied calibration coefficients during this DQR's time period. Backing out new downwelling longwave irradiances would be difficult in this case. Fortunately, the problem period is less than a fortnight. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/06/2005 | 0000 | 01/07/2005 | 2359 | Incorrect |
Subject: | SGP/SIRS/E12 - Ice obscured NIP |
DataStreams: | sgpsirsE12.b1 |
Description: | During the morning hours of 01/06, the direct normal shortwave readings are anomalously low in clear sky conditions, causing very large differences (approaching/exceeding 300 W/m^2) between the downwelling shortwave hemispheric (DSH) readings and the derived downwelling shortwave hemispheric readings. It would appear the NIP window had iced over during the previous days storm. The NIP window appears to have cleared itself by the morning of 2005/01/08. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/09/2005 | 0849 | 01/18/2005 | 1900 | Incorrect |
Subject: | SGP/SIRS/E15 - Failed NIP cable |
DataStreams: | sgpsirsE15.b1 |
Description: | After the ice storm, the SHORT_DIRECT_NORMAL values were bad or missing continuously. Corrective Maintenance on 01/18 found the NIP cable had broken inside the Bendix connector. The NIP cable was repaired and returned to service. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/23/2004 | 2315 | 01/25/2005 | 1800 | Incorrect |
Subject: | SGP/SIRS/E9 - Unknown -failed PSP ventilator fan |
DataStreams: | sgpsirsE9.b1 |
Description: | Downwelling shortwave hemispheric (DSH) readings appear to have a slight to moderate negative offset from derived DSH values. At night, this negative offset causes qc flags (since values are below the minimum threshold of -10 W/m^2). Differences between derived and actual DSH values are sometimes on the order of 50 W/m^2 due to this offset. The offset was discovered to be due to a failed ventilator fan which is used to clear the dome of the PSP, the instrument which measures the DSH. The ventilator likely seized or was intermittent and heated the PSP base giving an erroneous DSH reading. Field techs replaced the fan on 01/25/2005 1745GMT. The DSH has been reading normally since that time. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/27/2004 | 0000 | 02/16/2005 | 1930 | Does not affect quality |
Subject: | SGP/SIRS/E20 - Reprocessed and Corrected: Incorrect calibration coefficients |
DataStreams: | sgpsirsE20.b1 |
Description: | DATA REPROCESSED and CORRECTED: Data were archived in September 2016. SGP/SIRS/E20 - Reprocessed data to correct calibration coefficients, as noted below. SUGGESTIONS: Shortwave instrument measurements: Back out original mV readings and then reapply correct calibration coefficients. DownwellingDiffuse(corrected) = (DiffusePSP(incorr)[W/m2]/118.49(incorr)[W/m2*mV])*115.32[W/m2*mV) UpwellingShortwave = (US/121.67)*126.36 DirectShortwave=(NIP/123.58)*117.99 DownwellingShortwave = (DS/119.23)*126.47 Longwave instrument measurements: Back out original mV readings from NetIR and case and dome thermistor values from b1 file and reapply longwave eqn. described in the SIRS handbook (http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf section 7)using the correct calibration coefficients. UpwellingIRnet[uV](corrected) = (UIRnet[W/m2]/0.23585(incorr)[W/m2*uV])*0.2371(corr)[W/m2*uV) Then apply K0=-21.18(W/m2),K1=.2731(W/m2*uV),K2=1.0400,K3=-2.4460,Kr=7.044E-4 to the 4 coefficient eqn described in sec7 of the SIRS handbook DownwellingIRnet[uV](corr) = (DIRnet/0.27855)*0.2455 then apply K0=-21.19(W/m2),K1=.2455(W/m2*uV),K2=1.0390,K3=-2.4910,Kr=7.044E-4 ORIGINAL DQR CATEGORY: Red( Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-09 REPROCESS IDENTIFICATION NUMBER: RID 187 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- Sometime during the day of 12/27/2004(first avialable day of data) or 12/24-12/26 (no archive data available) the SIRS datalogger at E20 was loaded with an old version of an E20 program. The calibration coefficients and serial numbers do not match those installed. Field techs installed a correct datalogger program on 1/19/2005 1900GMT. However, sometime during 1/20/2005 the datalogger reverted to the wrong program again without user intervention. On 2/16/2005 the correct SIRS program was reloaded on the E20 datalogger. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/05/2005 | 0202 | 01/09/2005 | 0848 | Missing |
Subject: | SGP/SIRS/E15 - Ice storm |
DataStreams: | sgpsirsE15.b1 |
Description: | Data missing due to an ice storm. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/05/2005 | 0902 | 01/13/2005 | 1618 | Missing |
Subject: | SGP/SIRS/E2 - Ice storm |
DataStreams: | sgpsirsE2.b1 |
Description: | Data missing due to ice storm. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/04/2005 | 2102 | 01/11/2005 | 1943 | Missing |
Subject: | SGP/SIRS/E8 - Ice storm |
DataStreams: | sgpsirsE8.b1 |
Description: | Data missing due to ice storm. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/05/2005 | 0702 | 01/09/2005 | 1448 | Missing |
Subject: | SGP/SIRS/E9 - Ice storm |
DataStreams: | sgpsirsE9.b1 |
Description: | Data missing due to ice storm. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/03/2005 | 1654 | 02/05/2005 | 2359 | Incorrect |
Subject: | SGP/SIRS/E2 - Tracker mis-alignment |
DataStreams: | sgpsirsE2.b1 |
Description: | The solar tracker was not working correctly at this site from 2/3/2005 to 2/5/2005 2359GMT. After this time tracker mounted instruments appear to have been responding correctly. There was no maintenance intervention that rectified the tracking problem. This has happened in the past with the SGP SciTec trackers. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/03/2005 | 1200 | 02/15/2005 | 2250 | Suspect |
Subject: | SGP/SIRS/E18 - Possible PSP dome contamination |
DataStreams: | sgpsirsE18.b1 |
Description: | Downwelling shortwave hemispheric (DSH) measurements did not agree with derived DSH readings during the morning hours up to 1500GMT each clear day. PM cleaning on 2/16 2250 revealed nothing other than dirty water spots. A dirty or ice covered PSP dome may have been the cause, clearing itself before the PM crew arrived. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/01/2004 | 0000 | 01/01/2005 | 0000 | Does not affect quality |
Subject: | SGP/SIRS/E13 - Monthly Report |
DataStreams: | sgpsirsE13.b1 |
Description: | :Data quality this site-month is good. The offset for the Global PSP is about -7 W/m^2. The dominant problem here is the daytime 3 component problem. Direct and Diffuse are always too high and Global is too low. The problem occurs around the time that the testing regime switches from twilight to daytime testing regimes or from daytime to twilight. The flags occur in significant numbers on the 1st - 5th, 7th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular respect to this problem. Global goes below daytime empirical limits on both the 5th and 6th for substantial periods of time. Diffuse also goes below daytime empirical limits on the 6th in the afternoon. Upwelling Longwave is below empirical limits on the 24th. This may not be a problem, as many sites exhibited the same problem on the same night. Exceptionally cold temperatures may be the cause. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/02/2004 | 2045 | 02/22/2005 | 2050 | Does not affect quality |
Subject: | SGP/SIRS/E7 - Reprocessed: Corrected Downwelling Longwave calibrations |
DataStreams: | sgpsirsE7.b1 |
Description: | Incorrect DIR calibration coeffs and serial numbers were applied to the data from 11/02/2004 when the shortwave instruments were changed out. Field techs corrected the program during longwave instrument replacement on 2/22/2005. The data were reprocessed in September 2006 to apply the correct calibrations. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/10/2005 | 1620 | 03/10/2005 | 1600 | Does not affect quality |
Subject: | SGP/SIRS/E2 - Reprocessed: Incorrect DIR calibration coefficients |
DataStreams: | sgpsirsE2.b1 |
Description: | During the DIR/UIR instrument changeout on 2/10/2005 the new datalogger program contained incorrect calibration coefficients for the DIR instrument. The program was corrected on 3/10/2005. These data were reprocessed and archived in September 2006. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/03/2005 | 2200 | 04/05/2005 | 1950 | Incorrect |
Subject: | SGP/SIRS/E7 - Downwelling Shortwave incorrect |
DataStreams: | sgpsirsE7.b1 |
Description: | Downwelling shortwave values dropped off to unrealistic values frequently at this site (usually between 1600 GMT and 0000 GMT). SGP techs found this was due to a bad multiplexer and it was replaced 04/05/2005 1950GMT along with the downwelling shortwave cable. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/30/2005 | 0103 | 04/19/2005 | 1720 | Suspect |
Subject: | SGP/SIRS/E9 - Downwelling Shortwave values low |
DataStreams: | sgpsirsE9.b1 |
Description: | Downwelling Shortwave Hemispheric (DSH) irradiance values from the pyranometer instrument were frequently below the MIN value of -10 W/m^2 at night. DSH values also frequently disagreed with derived readings (at times well over 50 W/m^2 difference) during the daylight hours, especially in the morning. Field techs performed maintenance but could not find obvious instrument or connection problems. The low DSH values during nighttime were on the threshold of acceptable. Largest offsets acceptable with these pyranometers is typically -10 W/m2. The large derived vs. actual DSH differences during the daylight hours are the subject of ongoing ARM investigation. No instrument problems could be identified. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/26/2005 | 1726 | 05/03/2005 | 1840 | Does not affect quality |
Subject: | SGP/SIRS/E12 - Reprocessed and Corrected: Incorrect calibrations |
DataStreams: | sgpsirsE12.b1 |
Description: | DATA REPROCESSED and CORRECTED: During a site corrective maintenance, the SIRS.E12 data logger was power cycled. The data logger reverted to an old SIRS program with incorrect S/Ns and calibration coefficients for all Instruments at this a station. The raw data were modified and were run through the ingest to recalibrate the SW and LW data. The data were Archived in August 2016. Please retrieve the reprocessed data for use in your Analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E12 ORIGINAL DQR CATEGORY: Red( Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-08 REPROCESS IDENTIFICATION NUMBER: RID 202 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- During site corrective maintenance to resolve an Extended Facility data collection problem, the SIRS.E12 datalogger was power cycled (1725 GMT). The datalogger reverted to an old SIRS program with incorrect S/Ns and calibration coefficients for all instruments at this station. The SW data can be recalibrated as follows: First divide value by incorrectly applied cal coeff (first number) then multiply by correct cal coeff (second number) down_short_diffuse_hemisp 107.27 118.68 up_short_hemisp 113.19 127.95 short_direct_normal 120.17 120.52 down_short_hemisp 118.46 102.11 The LW data were recalibrated and reprocessed as part of a larger LW calibration task. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/07/2005 | 0000 | 07/20/2005 | 2000 | Missing |
Subject: | SGP/SIRS/E22 - Intermittent upwelling longwave data loss |
DataStreams: | sgpsirsE22.b1 |
Description: | Upwelling longwave hemispheric data drops out occasionally during the afternoon hours. Maintenance determined that the Upwelling LW Hemispheric irradiance instrument, the PIR, had a failed cable affecting only the thermopile measurement of this instrument. Cable was replaced 7/20/05 2000GMT. |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/25/2005 | 1409 | 06/02/2005 | 2205 | Does not affect quality |
Subject: | SGP/SIRS/E13 - Reprocessed and Corrected: incorrect calibrations |
DataStreams: | sgpsirsE13.b1 |
Description: | DATA REPROCESSED and CORRECTED: After a long data gap on 05/25/2005, presumably a power outage, short_direct_normal (NIP) was showing incorrect value as well as incorrect calibration coefficients in the data logger program. The SIRS. E13 data logger was power cycled (6/2/2005 GMT) and the correct program loaded into the SIRS data logger and storage module. The data during this time range were reprocessed to apply the correct calibration coefficients for Short_direct_normal data. The data were archived in September 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E1 ORIGINAL DQR CATEGORY: Red( Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-09 REPROCESS IDENTIFICATION NUMBER: RID 318 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- After a long data gap on 5/25/2005, presumably a power outage, the following datastreams were showing incorrect values as well as incorrect calibration coefficients in the datalogger program: down_long_hemisp_shaded (downwelling PIR instrument) up_long_hemisp (upwelling PIR instrument) short_direct_normal (NIP instrument) The SIRS.E13 datalogger was power cycled (6/2/2005 2200GMT) and the correct program loaded into the SIRS datalogger and storage module. The data during this time range can be recalibrated as follows: First divide value by incorrectly applied cal coeff (first number) then multiply by correct cal coeff (second number) short_direct_normal 120.28 124.58 up_long_netir 0.2386 0.2595 down_long_netir 0.3052 0.2304 Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K), inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual. up_long_hemisp k0 -18.3400 W/m^2\n, k1 0.2595 W/(m^2*uV)\n, k2 1.0380 unitless\n, k3 -2.7420 unitless\n, kr 0.0007044 K/uV\n, Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp (K),inst_down_long_dome_temp(K). down_long_hemisp_shaded k0 -11.6300 W/m^2\n, k1 0.2304 W/(m^2*uV)\n, k2 1.0190 unitless\n, k3 -2.4230 unitless\n, kr 0.0007044 K/uV\n, |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/05/2005 | 1950 | 04/19/2005 | 2100 | Incorrect |
Subject: | SGP/SIRS/E7 - Downwelling longwave incorrect |
DataStreams: | sgpsirsE7.b1 |
Description: | During maintenance to correct a problem with the downwelling shortwave data, the downwelling longwave instrument wiring was not properly fastened resulting in incorrect downwelling longwave hemispheric data. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/13/2005 | 2115 | 06/20/2005 | 2200 | Incorrect |
Subject: | SGP/SIRS/E9 - Sensor cable failure |
DataStreams: | sgpsirsE9.b1 |
Description: | The short_direct_normal measurements from the normal incident pyrheliometer (NIP) instrument were missing beginning 6/13/2005 2115GMT. On 6/20/2005 technicians found the NIP instrument cable broken, replaced it, and returned the instrument to service at 2200GMT. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/16/2005 | 1412 | 07/27/2005 | 1600 | Suspect |
Subject: | SGP/SIRS/E4 - Dirt on Dome |
DataStreams: | sgpsirsE4.b1 |
Description: | The downwelling shortwave hemispheric radiation data are suspect. The PSP dome appears to have been very dirty, especially during times when the sun angles were low. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/27/2005 | 1930 | 08/09/2005 | 1940 | Suspect |
Subject: | SGP/SIRS/E8 - Downwelling Shortwave hemispheric (PSP) Dome Contamination |
DataStreams: | sgpsirsE8.b1 |
Description: | The downelling shortwave hemispheric instrument (Eppley PSP) dome at this site had dirt or a smudge on it. This was most noticeable during mid to late afternoon hours (around 2100 GMT). PM cleaned the dome on 8/9/05 1940, correcting the problem. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/04/2005 | 2207 | 08/17/2005 | 1840 | Incorrect |
Subject: | SGP/SIRS/E20 - Downwelling Shortwave PSP Damaged by Lightning |
DataStreams: | sgpsirsE20.b1 |
Description: | The PSP was damaged by a lightning strike on 8/04/05 (22:10 GMT). Data from other radiometers are good after this event. The PSP, NIP and shaded 8-48 were replaced 8/17/05 and the system returned to service at 18:40 GMT. Downwelling Shortwave (DS) data from the unshaded PSP during this period is reported as 0.0 W/sq m. The DS can be computed from available Direct Normal (NIP), Downwelling Diffuse (DD), and the computed Solar Zenith Angle (SZA) using the following equation: DS = NIP * Cos(SZA) + DD Estimated uncertainties of the computed values are actually lower than those of the measured DS (+/- 3% or 4% vs. +/- 5% to 10% respectively, depending on SZA). |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/11/2006 | 0000 | 04/13/2006 | 1522 | Suspect |
Subject: | SGP/SIRS/E19 - Ventilator failure |
DataStreams: | sgpsirsE19.b1 |
Description: | Dowenlling shortwave hemispheric instrument signal (Eppley PSP) is very erratic due to failed ventilator fan which was replaced during PM on 04/13/2006. |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/20/2005 | 1930 | 04/12/2006 | 2040 | Suspect |
Subject: | SGP/SIRS/E20 - Instrument noise problem |
DataStreams: | sgpsirsE20.b1 |
Description: | Afer recovery from lightening strike the upwelling longwave SIRS Eppley PIR (UIR) has had noise on both dome and case thermistor measurements. On 4/12/2006 techs replaced defective j-panel at base of tower. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/22/2006 | 1300 | 05/30/2006 | 2020 | Incorrect |
Subject: | SGP/SIRS/E8 - Instrument cable problem |
DataStreams: | sgpsirsE8.b1 |
Description: | The short_direct_normal, down_short_diffuse_hemisp and up_short_hemisp data are missing or are spiking to negative numbers. On 20060530, technicians discovered cows had chewed on the instrument cables. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/12/2004 | 1630 | 02/23/2005 | 1615 | Does not affect quality |
Subject: | SGP/SIRS/E2 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE2.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in September 2006. |
Measurements: | sgpsirsE2.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/10/2004 | 1720 | 02/22/2006 | 1615 | Does not affect quality |
Subject: | SGP/SIRS/E4 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE4.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in March 2004. 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/20/2004 | 2000 | 02/07/2006 | 2005 | Does not affect quality |
Subject: | SGP/SIRS/E7 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE7.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/10/2004 | 1845 | 02/21/2006 | 1840 | Does not affect quality |
Subject: | SGP/SIRS/E8 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE8.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in February 2004. 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in September 2006. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/17/2003 | 1640 | 02/07/2006 | 1730 | Does not affect quality |
Subject: | SGP/SIRS/E9 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE9.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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instanteous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/22/2003 | 1640 | 02/14/2006 | 1710 | Does not affect quality |
Subject: | SGP/SIRS/E12 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE12.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/11/2003 | 1935 | 02/16/2006 | 1905 | Does not affect quality |
Subject: | SGP/SIRS/E13 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE13.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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/22/2003 | 1650 | 02/14/2006 | 1806 | Does not affect quality |
Subject: | SGP/SIRS/E15 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE15.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/22/2003 | 2200 | 02/14/2006 | 2100 | Does not affect quality |
Subject: | SGP/SIRS/E18 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE18.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/24/2003 | 1600 | 02/16/2006 | 1558 | Does not affect quality |
Subject: | SGP/SIRS/E19 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE19.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/23/2003 | 2100 | 02/15/2006 | 2030 | Does not affect quality |
Subject: | SGP/SIRS/E20 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE20.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in November 2006. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/23/2003 | 1830 | 02/15/2006 | 1741 | Does not affect quality |
Subject: | SGP/SIRS/E22 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE22.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in July 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in August 2006. |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/16/2003 | 0002 | 02/15/2006 | 1750 | Does not affect quality |
Subject: | SGP/SIRS/E27 - Reprocessed: Longwave Calibration error |
DataStreams: | sgpsirsE27.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in May 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 have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006. |
Measurements: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/12/2006 | 1100 | 07/21/2006 | 1635 | Incorrect |
Subject: | SGP/SIRS/E9 - Tracker Failure |
DataStreams: | sgpsirsE9.b1 |
Description: | On July 12th the SIRS tracker failed to wake up that morning. On the 21st of July CM repaired the tracker. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/07/2006 | 0100 | 11/20/2006 | 2300 | Incorrect |
Subject: | SGP/SIRS/E18 - Upwelling SW cable severed |
DataStreams: | sgpsirsE18.b1 |
Description: | The Upwelling Shortwave signal was exceeding physical limits. Ops reported the upwelling shortwave cable was damaged by rodents. The cable was repaired and returned to service. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/31/2006 | 0600 | 12/12/2006 | 2105 | Suspect |
Subject: | SGP/SIRS/E7 - Instrument noise |
DataStreams: | sgpsirsE7.b1 |
Description: | Beginning around 10/31, the E7 UIR experienced an increasingly noisy signal. The thermopile signal was noisy, but case and dome thermistors are well behaved. Maintenance reseated the UIR cable connections on 12/12/2006 which effectively eliminated the UIR noise. The thermopile data from the upwelling pyrgeometer is noisy with resulting irradiance variations of up to 5 W/m2, but doesn't appear to have a bias. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/03/2006 | 1500 | 03/14/2007 | 1830 | Suspect |
Subject: | SGP/SIRS/E20 - Noise in Upwelling longwave data |
DataStreams: | sgpsirsE20.b1 |
Description: | Starting on 12/3/2006 there was occasional noise in the upwelling longwave case thermistor measurement adversely affecting the upwelling longwave irradiance measurements. The cable was replaced. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/18/2007 | 2230 | 07/24/2007 | 1400 | Suspect |
Subject: | SGP/SIRS/E18 - Noise in upwelling longwave data |
DataStreams: | sgpsirsE18.b1 |
Description: | After restart due to ice storm the upwelling longwave case and dome thermistors experienced intermittent noise. Last seen 7/24/2007, the noise is intermittent and can last several days. When noise is not apparent, upwelling longwave measurements appear normal. Only using upwelling longwave data that has been processed with ARMs qcrad VAP during this time period. Or, disregard upwelling longwave data during this time. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/14/2007 | 0000 | 02/20/2007 | 1800 | Incorrect |
Subject: | SGP/SIRS/E9 - Tracker failure |
DataStreams: | sgpsirsE9.b1 |
Description: | During this time range the solar tracker at E9 was not operating. PM on 2/20 1800GMT power cycled the tracker and it resumed normal operation. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/06/2006 | 1722 | 04/12/2007 | 1810 | Does not affect quality |
Subject: | SGP/SIRS/E22 - Reprocessed and Corrected: Incorrect calibration coefficients |
DataStreams: | sgpsirsE22.b1 |
Description: | DATA REPROCESSED and CORRECTED: NIP (short_direct_normal) 29541E6 had an incorrect calibration coefficient in the logger program. The correct calibration should have been 126.67 [W/m2/mV] instead of 128.97. The correct calibration was calculated as NIPIrr(cor) = NIPIrr(orig) * (126.67/128.97) = NIP(orig) * 0.982166 The data were archived in October 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E22 ORIGINAL DQR CATEGORY: Red (Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-10 REPROCESS IDENTIFICATION NUMBER: RID 387 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- NIP (short_direct_normal) 29541E6 had an incorrect calibration coefficient in the logger program. 128.97 should have been 126.67 [W/m2/mV]. |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/27/2007 | 0109 | 04/03/2007 | 1615 | Incorrect |
Subject: | SGP/SIRS/E9 - Downwelling SW cable problem |
DataStreams: | sgpsirsE9.b1 |
Description: | The down_short_diffuse_hemispheric data were erratic beginning 0109 GMT March 27 2007. Found rodents had chewed DD cable. Repaired April 3rd 1625GMT. Data are not recoverable. However, it can be reconstructed using the following shortwave instrument relationship on a minute by minute basis: |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/22/2007 | 1400 | 03/26/2007 | 1830 | Missing |
03/05/2007 | 1430 | 03/10/2007 | 1500 | Missing |
Subject: | SGP/SIRS/E7 - SIRS Power supply problems |
DataStreams: | sgpsirsE7.b1 |
Description: | Power supply problems to SIRS datalogger resulted in logger voltage dropping below minimum for operation. During these time ranges the datalogger was either not operating or operating intermittantly as battery voltage would go above and below logger voltage threshold of approx 9VDC. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/14/2007 | 1124 | 06/19/2007 | 1730 | Incorrect |
Subject: | SGP/SIRS/E15 - NIP (short_direct_normal) failure |
DataStreams: | sgpsirsE15.b1 |
Description: | Short_direct_normal was spiking to large positive and negative values (+2000/-2000) with extended periods of missing data. Repair of broken cable corrected the problem. Data are not recoverable. Suggest using remaining components (global hemispheric and global diffuse) to reconstruct direct normal data during this time period. See SIRS instrument handbook for details on this process. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/12/2007 | 1906 | 09/04/2007 | 1940 | Incorrect |
Subject: | SGP/SIRS/E7 - Downwelling shortwave data dropouts |
DataStreams: | sgpsirsE7.b1 |
Description: | The down_short_hemisp data was dropping out to negative numbers and had high negative offsets. PM techs reseated the cable connections and found the ventilator fan had failed. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/15/2007 | 1600 | 11/06/2007 | 2155 | Incorrect |
Subject: | SGP/SIRS/E18 - NIP cable failure |
DataStreams: | sgpsirsE18.b1 |
Description: | NIP cable failed and was repaired on 11/6 2155. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/14/2007 | 1856 | 06/06/2007 | 1745 | Incorrect |
01/15/2007 | 0000 | 03/14/2007 | 1855 | Incorrect |
Subject: | SGP/SIRS/E20 - Failed tracker and improperly configured tracker |
DataStreams: | sgpsirsE20.b1 |
Description: | On 1/15/2007 the E20 tracker failed due to weather. On 3/14 it was replaced but configured incorrectly (presumably the wrong lat/long). This wasn't discovered and corrected until 6/6/2007 1745GMT. All shortwave instruments dependent on proper tracker were affected. This includes measurements: downwelling shortwave diffuse and direct normal. Additionally, the global shortwave instrument have also been shaded during the second time range due to improperly set tracker. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/28/2007 | 2000 | 08/31/2007 | 1630 | Incorrect |
Subject: | SGP/SIRS/E12 - Power supply problem affecting solar tracker |
DataStreams: | sgpsirsE12.b1 |
Description: | The tracker failed during this time period due to a failed UPS. Tracker was placed on unregulated power on 8/31/2007 to correct the problem while a new UPS was ordered. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/13/2007 | 0000 | 01/04/2008 | 1645 | Does not affect quality |
Subject: | SGP/SIRS/E19 - Reprocessed and Corrected: Incorrect calibration coefficients |
DataStreams: | sgpsirsE19.b1 |
Description: | DATA REPROCESSED and CORRECTED: Sometime on 10/13 the SIRS data logger reverted to the old program used for the Previous set of coefficients (i.e. Before the scheduled 09/13 shortwave instrument swap out). Coefficients were such that the program change didn't result in easily discernible changes in the Data. The long wave instruments were not affected. The data were reprocessed to apply the correct calibration coefficients for all shortwave measurements. The data were archived in October 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E19 ORIGINAL DQR CATEGORY: Red (Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-10 REPROCESS IDENTIFICATION NUMBER: RID 491 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- Sometime on 10/13 the SIRS datalogger reverted to the old program used for the previous set of coefficients (i.e. before the scheduled 9/13 shortwave instrument swapout). Coefficients were such that the program change didn't result in easily discernable changes in the data. The longwave instruments were not affected. The Coefficients applied during this time were as follows (marked "Incorrect"): Incorrect "Diffuse PSP: 106.83 W/(m^2*mV)\n", Correct "Diffuse PSP: 113.35 W/(m^2*mV)\n", Incorrect "PSP-US: 119.40 W/(m^2*mV)\n", Correct "PSP-US: 117.97 W/(m^2*mV)\n", Incorrect "NIP: 120.41 W/(m^2*mV)\n", Correct "NIP: 121.72 W/(m^2*mV)\n", Incorrect "PSP-DS: 120.26 W/(m^2*mV)\n", Correct "PSP-DS: 122.52 W/(m^2*mV)\n", Shortwave data can be corrected by dividing by "Incorrect" coefficient and multiplying "Correct" coefficient. (e.g. down_short_diffuse_hemisp(cor) = down_short_diffuse_hemisp*(113.35/106.83)) |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/08/2008 | 0000 | 01/16/2008 | 1830 | Incorrect |
12/09/2007 | 0000 | 12/19/2007 | 2009 | Incorrect |
Subject: | SGP/SIRS/E22 - Tracker failure |
DataStreams: | sgpsirsE22.b1 |
Description: | The E22 tracker failed during the specified time periods. Power cycling the tracker restored normal operation both times. Adversely affected instruments are the down_short_diffuse (8-48) and short_direct_normal (NIP). |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/19/2007 | 0000 | 08/14/2007 | 1700 | Suspect |
Subject: | SGP/SIRS/E12 - Failed ventilator fan |
DataStreams: | sgpsirsE12.b1 |
Description: | Ventilator fan for the downwelling shortwave hemisheric failed during this time period. The thermal effects of daytime heating will skew the radiometric measurements of the thermopile instrument. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/12/2007 | 1030 | 01/02/2008 | 2240 | Incorrect |
Subject: | SGP/SIRS/E18 - Instrument noise problem |
DataStreams: | sgpsirsE18.b1 |
Description: | Starting May 12th 2007 DIR experiencing persistent, intermittent data dropouts and noise. PM found a damaged PIR cable and repaired 01/02/08 2240GMT. Noise seems to be unbiased and dropouts are beyond QC limits making QC flags a possible option in filtering for good data. However, using data during this period is not recommended. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/29/2007 | 0145 | 06/06/2007 | 1652 | Incorrect |
Subject: | SGP/SIRS/E19 - Tracker failure |
DataStreams: | sgpsirsE19.b1 |
Description: | On the evening of May 28th (5/29 0145) the E19 suntracker rewound past its limit switches breaking the downwelling diffuse instrument cable. It did not move again until PM found it nonoperational and reset it on June 6th. |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/27/2007 | 1900 | 01/07/2008 | 1525 | Incorrect |
Subject: | SGP/SIRS/E13 - Multiplexer failure |
DataStreams: | sgpsirsE13.b1 |
Description: | The down_short_hemisp (PSP), down_long_hemisp_shaded (DIR) and up_long_hemisp (UIR) experienced frequent dropouts due to a failing multiplexer. CM replaced mux on 1/7. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/10/2007 | 0000 | 12/25/2007 | 2359 | Suspect |
Subject: |
|
DataStreams: | sgpsirsE27.b1, sgpsirsE20.b1, sgpsirsE19.b1, sgpsirsE22.b1, sgpsirsE7.b1, sgpsirsE18.b1, sgpsirsE9.b1, sgpsirsE12.b1, sgpsirsE4.b1, sgpsirsE15.b1, sgpsirsE13.b1, sgpsirsE8.b1, sgpsirsE2.b1 |
Description: | Ice storms affected the SGP central and extended facilities starting Dec 10 0000GMT to mid/late December. Each facility was affected at various times and degrees dependant on elevation, latitude and whether power failed for short or extended periods of time. By December 15th most ice had melted from the radiometers at all the faclities but power outages and tracker failures persisted at some stations. |
Measurements: | sgpsirsE7.b1:
sgpsirsE9.b1:
sgpsirsE18.b1:
sgpsirsE13.b1:
sgpsirsE12.b1:
sgpsirsE2.b1:
sgpsirsE8.b1:
sgpsirsE27.b1:
sgpsirsE22.b1:
sgpsirsE15.b1:
sgpsirsE20.b1:
sgpsirsE19.b1:
sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/13/2008 | 1400 | 01/23/2008 | 1817 | Incorrect |
Subject: | SGP/SIRS/E4 - UPS failure |
DataStreams: | sgpsirsE4.b1 |
Description: | On Jan 13th approximately 1400GMT the UPS failed at E4. This affected both the global and tracker mounted instruments. The affected measurements are down_short_hemisp(PSP), down_short_diffuse(8-48) and direct_normal(NIP) measurements. The PSP down_short_hemisp measurement doesn't rely on the tracker but is power ventilated and is adversely affected by daytime solar heating when the ventilator power fails. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/30/2008 | 0000 | 02/26/2008 | 2150 | Incorrect |
Subject: | SGP/SIRS/E18 - NIP condensation problem |
DataStreams: | sgpsirsE18.b1 |
Description: | NIP at E18 was measuring impossible values due to condensation on inside of NIP window. PM replaced NIP 2/26/2008 2150. Measured data are not recoverable. Use component sum method to reconstruct NIP data. NIP = (Global-Diffuse)/cos(ZA) |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/04/2008 | 1900 | 05/15/2008 | 1820 | Incorrect |
Subject: | SGP/SIRS/E7 - Downwelling Shortwave failure |
DataStreams: | sgpsirsE7.b1 |
Description: | The downwelling shortwave (Global PSP) values were dropping out. Problem started 2/4 but became persistent 3/9 and continued until replacement of Mux on 5/15. PSP data (down_short_hemisp) is not recoverable but can be calculated using: global = direct*cos(zenith angle) + diffuse See the SIRS instrument handbook for details of this component sum method. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/02/2008 | 1718 | 05/01/2008 | 1615 | Incorrect |
Subject: | SGP/SIRS/E4 - Tracker failure |
DataStreams: | sgpsirsE4.b1 |
Description: | On 4/2, the station experienced a power drop after which the tracker was not operational until it was reset on 5/1. The short_direct_normal (NIP instrument) and down_short_diffuse_hemispheric (8-48 instrument) data were bad during this time. The down_long_hemispheric (PIR) and down_short_hemispheric were unaffected by this failure. Upwelling instruments were also unaffected. Three component DQ checks were not valid during this time. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/04/2008 | 0000 | 05/04/2008 | 2359 | Does not affect quality |
Subject: | SGP/SIRS/E20 - Intermittent missing data |
DataStreams: | sgpsirsE20.b1 |
Description: | Data are intermittent during the time period specified. Missing data are not recoverable. Available data are satisfactory. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/06/2008 | 1100 | 06/19/2008 | 1716 | Incorrect |
05/27/2008 | 1540 | 06/04/2008 | 1825 | Incorrect |
Subject: | SGP/SIRS/E22 - Tracker failure |
DataStreams: | sgpsirsE22.b1 |
Description: | During the time ranges specified the SIRS solar tracker had failed for unspecified reasons. Measurements of short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) are incorrect and not recoverable. Longwave data are unaffected. |
Measurements: | sgpsirsE22.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/18/2005 | 2132 | 05/26/2005 | 1827 | Missing |
05/04/2008 | 1823 | 05/17/2008 | 1447 | Missing |
12/10/2007 | 1803 | 12/13/2007 | 1850 | Missing |
01/24/2003 | 1302 | 01/28/2003 | 1949 | Missing |
05/27/2005 | 0000 | 05/31/2005 | 0646 | Missing |
07/11/2003 | 0002 | 07/15/2003 | 2001 | Missing |
01/30/2003 | 0226 | 02/05/2003 | 1951 | Missing |
04/17/2008 | 2246 | 04/23/2008 | 1440 | Missing |
Subject: | SGP/SIRS/E20 - Missing data |
DataStreams: | sgpsirsE20.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/04/2008 | 1430 | 06/25/2008 | 1607 | Incorrect |
Subject: | SGP/SIRS/E4 - Tracker inoperative |
DataStreams: | sgpsirsE4.b1 |
Description: | Tracker was inoperative at this site 6/04 to 6/25 for unknown reasons. PM power cycled and reloaded program 6/25 1607 GMT. The short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) data are bad during this time and are not recoverable. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/06/2008 | 0330 | 07/08/2008 | 1750 | Suspect |
Subject: | SGP/SIRS/E8 - Ventilator Fan Failure |
DataStreams: | sgpsirsE8.b1 |
Description: | At the start time specified the PSP (down_short_hemisp) ventilator fan failed. PM replaced the fan 7/8/2008 1750. Ventilator failure does adversely affect radiometer measurements but the extent has not been quantified. Mentor suggests using component sum method detailed in SIRS instrument handbook where down_short_hemisp = down_short_diffuse + short_direct_normal * cos (zenith angle) for each time record. |
Measurements: | sgpsirsE8.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/18/2008 | 0000 | 06/30/2008 | 2110 | Suspect |
Subject: | SGP/SIRS/E18 - Ventilator Fan Failure |
DataStreams: | sgpsirsE18.b1 |
Description: | At the start time specified the PSP (down_short_hemisp) ventilator fan failed. PM replaced the fan 6/30/2008 2110. Ventilator failure does adversely affect radiometer measurements but the extent has not been quantified. Mentor suggests using component sum method detailed in SIRS instrument handbook where down_short_hemisp = down_short_diffuse + short_direct_normal * cos (zenith angle) for each time record. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/27/2008 | 1545 | 08/27/2008 | 1700 | Suspect |
08/20/2008 | 0500 | 08/20/2008 | 1200 | Suspect |
08/09/2008 | 1400 | 08/09/2008 | 1600 | Suspect |
09/03/2008 | 0000 | 09/03/2008 | 1830 | Suspect |
08/05/2008 | 0515 | 08/05/2008 | 0700 | Suspect |
10/27/2008 | 2303 | 10/27/2008 | 2324 | Suspect |
10/27/2008 | 1600 | 10/27/2008 | 1642 | Suspect |
08/28/2008 | 0300 | 08/28/2008 | 1200 | Suspect |
08/10/2008 | 0100 | 08/10/2008 | 1200 | Suspect |
Subject: | SGP/SIRS/E9 - Intermittent downwelling diffuse data |
DataStreams: | sgpsirsE9.b1 |
Description: | The downwelling diffuse (8-48) data were dropping out intermittently beginning on the night of 8/5. Ops repaired damaged cable on 11/12 but problem was last observed on 10/27. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/02/2009 | 0000 | 05/13/2009 | 2222 | Incorrect |
Subject: | SGP/SIRS/E4 - Tracker inoperative |
DataStreams: | sgpsirsE4.b1 |
Description: | Tracker failed on 04/02 until reset by Ops on 5/13. This adversely affected down_short_diffuse_hemisp and short_direct_normal data. Data are not recoverable. |
Measurements: | sgpsirsE4.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/22/2009 | 1600 | 04/24/2009 | 1606 | Incorrect |
Subject: | SGP/SIRS/E9 - Incorrect timestamp |
DataStreams: | sgpsirsE9.b1 |
Description: | The data collection computer lost communication with GPS for the affected time period at this site. The instrument time is not correct causing the data to be up to 30 minutes behind actual time by the end of the affected time period. The time shift is not linear and no known time correction could be applied to the affected data streams. More information is available contained in PIF P090429.1 |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/06/2009 | 1550 | 05/18/2009 | 1830 | Incorrect |
Subject: | SGP/SIRS/E12 - NIP failure |
DataStreams: | sgpsirsE12.b1 |
Description: | The short_direct_normal values are mostly missing (-9999) starting when the datastream came back from an extended period of no data files. Ops determined the NIP (short_direct_normal datastream) instrument had failed and it was replaced. Values of short_direct_normal can be reconstructed using the following relationship applied for each time period: short_direct_normal = (down_short_hemisp - down_short_diffuse)/cos (zenith angle) |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/12/2009 | 1848 | 08/18/2009 | 1930 | Incorrect |
Subject: | SGP/SIRS/E7 - NIP failure |
DataStreams: | sgpsirsE7.b1 |
Description: | The short_direct_normal data were reported as -9999 during this time period. The start of the bad data from the NIP instrument on 05/12 coincides with a SMOS report of 2 inches of rain. NIP data are not recoverable. Users can calculate short_direct normal component using component sum method as follows (for each minute of available data): short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle) |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/20/2009 | 1649 | 06/03/2009 | 2005 | Does not affect quality |
Subject: | SGP/SIRS/E27 - Reprocessed and Corrected: Incorrect calibration coefficients |
DataStreams: | sgpsirsE27.b1 |
Description: | DATA REPROCESSED and CORRECTED: The SIRS.E27 data logger reverted to a previous years configuration, possibly due to power outage and non-current logger program in storage module. The data were reprocessed to apply the correct calibration coefficients for all shortwave measurements. The data were Archived in August 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E27 ORIGINAL DQR CATEGORY: Red( Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-08 REPROCESS IDENTIFICATION NUMBER: RID 590 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- Logger reverted to previous years configuration, possibly due to power outage and non-current logger program in storage module. Note, the tracker had failed during this period as well. The configurations are as follows: Correct S/N and coefficients for this station during this time Diffuse PSP: 33268F3 PSP-US: 30811F3 NIP: 29578E6 PSP-DS: 30903F3 Diffuse PSP: 118.49 W/(m^2*mV) PSP-US: 116.66 W/(m^2*mV) NIP: 123.30 W/(m^2*mV) PSP-DS: 128.92 W/(m^2*mV) Incorrect S/N and coefficients applied during this time range. Diffuse PSP: 33366F3 PSP-US: 30961F3 NIP: 29009E6 PSP-DS: 20386F3 Diffuse PSP: 111.68 W/(m^2*mV) PSP-US: 111.85 W/(m^2*mV) NIP: 111.03 W/(m^2*mV) PSP-DS: 104.15 W/(m^2*mV) Data must be reprocessed for all shortwave instruments; longwave instruments are unaffected. The following corrections must be applied: down_short_diffuse_hemisp(new) = down_short_diffuse_hemisp(old) * 118.49/111.68 up_short_hemisp(new) = up_short_hemisp(old) * 116.66/111.85 short_direct_normal(new) = short_direct_normal(old) * 123.30 / 111.03 down_short_hemisp(new) = down_short_hemisp(old) * 128.92 / 104.15 |
Measurements: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/21/2009 | 0000 | 06/16/2009 | 2217 | Incorrect |
Subject: | SGP/SIRS/E18 - Tracker failure |
DataStreams: | sgpsirsE18.b1 |
Description: | The solar tracker was not operating during this time period. The short_direct_normal (NIP), down_short_diffuse_hemisp (8-48) were affected by the failure and should not be used. The PIR instrument should not be affected (down_long_hemisp_shaded) during this time. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/20/2009 | 1649 | 12/04/2009 | 2215 | Incorrect |
Subject: | SGP/SIRS/E27 - Tracker failure |
DataStreams: | sgpsirsE27.b1 |
Description: | Possible main power problem made may have caused the tracker to fail. Attempts to restart the old tracker, subsequent replacement and lack of spares contributed to incorrect data from the NIP (short_direct_normal datastream) and 8-48 (down_short_diffuse_hemisp datastream) until the time of site decommissioning. This facility was decommissioned and maintenance efforts ceased 10/1/2009. The instrument was removed from service 12/04/2009. Data are not recoverable. |
Measurements: | sgpsirsE27.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/16/2009 | 1124 | 07/21/2009 | 1520 | Incorrect |
03/20/2009 | 1212 | 04/01/2009 | 1605 | Incorrect |
Subject: | SGP/SIRS/E9 - Tracker failure |
DataStreams: | sgpsirsE9.b1 |
Description: | The solar tracker was not functioning during these periods. During both failure events PM found the solar tracker in its parked position. PM reset the tracker and it resumed normal operations. Data from instruments directly reliant on tracker operations (short_direct_normal, down_short_diffuse_hemisp) are not recoverable. The longwave data should not be affected. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/16/2009 | 2019 | 07/14/2009 | 1915 | Does not affect quality |
Subject: | SGP/SIRS/E18 - Reprocessed and Corrected: Incorrect calibrations |
DataStreams: | sgpsirsE18.b1 |
Description: | DATA REPROCESSED and CORRECTED: During instrument changeout the intended down_short_hemisp PSP and up_short_hemisp PSP were swapped resulting in incorrectly applied calibration coefficients. The problem was corrected by swapping the instruments into their proper positions. The correct calibration coefficients were applied to upwelling and downwelling shortwave measurements and the data were reprocessed. The data were archived in August 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E18 ORIGINAL DQR CATEGORY: Red( Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-08 REPROCESS IDENTIFICATION NUMBER: RID 605 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- During instrument changeout the intended down_short_hemisp PSP and up_short_hemisp PSP were swapped resulting in incorrectly applied calibration coefficients. The problem was corrected by swapping the instruments into their proper positions. Data will be reprocessed to apply correct calibrations: down_short_hemisp(cor)= down_short_hemisp(old)*[115.87/123.33] up_short_hemisp(cor)= up_short_hemisp(old)*[123.33/115.87] |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/26/2009 | 1353 | 11/17/2009 | 1545 | Suspect |
Subject: | SGP/SIRS/E18 - Dirt on dome |
DataStreams: | sgpsirsE18.b1 |
Description: | It appears that the PSP dome was dirty. There was a noticeable dip in down_short_hemisp values from 13:53 to 14:31 UTC every day after 09/26. This facility was decommissioned and maintenance efforts ceased 10/1/2009. The instrument was removed from service 11/17/2009. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/23/2009 | 1600 | 01/27/2010 | 1510 | Incorrect |
Subject: | SGP/SIRS/E7 - Upwelling Longwave inconsistent |
DataStreams: | sgpsirsE7.b1 |
Description: | The upwelling IR PIR instrument (up_long_hemisp) had bad connections during this time period. The case thermistor (Mux set #2) was reading erratic values and corrupting the up_long_hemisp data completely. The net_ir was valid but cannot be corrected without the case thermistor measurement to determine the incoming IR (i.e. up_long_hemisp). |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/18/2009 | 1625 | 03/16/2010 | 1518 | Suspect |
Subject: | SGP/SIRS/E9 - Downwelling SW sensor alignment/level |
DataStreams: | sgpsirsE9.b1 |
Description: | On clear days, the down_short_hemisp data (PSP instrument) exhibit asymmetry in its daily output curve especially when compared to derived downwelling shortwave. Ops corrected the problem by re-leveling the PSP on 3/16/2010. The issue may likely be due to a slowly sinking platform at this site or inadvertent loosening of instrument hold down screws. Problem may have developed slowly over the last year. Corrections are not easily quantifiable. Suggest using derived downwelling shortwave which is not dependent on the PSP instrument: derived DS = down_short_diffuse + short_direct_normal * cos(zenith angle) |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/07/2010 | 0005 | 05/07/2010 | 0215 | Suspect |
Subject: | SGP/SIRS/E9 - TimeCheck Error |
DataStreams: | sgpsirsE9.b1 |
Description: | The sgp.E9 instruments (EBBR, MET, SIRS, SWATS) time clocks were drifting outside the allowable +/-3 seconds. During the specified period, the swings ranged from -326 to +637 seconds. This period was around sunset May 6th (local time) and in the few hours immediately after sunset. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/05/2010 | 1700 | 08/10/2010 | 1628 | Incorrect |
Subject: | SGP/SIRS/E7 - NIP connector failure |
DataStreams: | sgpsirsE7.b1 |
Description: | After instrument replacement 8/5/2010 approx 1700GMT the short_direct_normal values became intermittent due to a failed NIP connector. Ops repaired the connector on 8/10 rectifying the problem. The short_direct_normal (NIP instrument) data are not recoverable during this period. Although there will be greater uncertainty the short_direct_normal can be reconstructed from the global and diffuse measurements for each minute of data using the following relationship: down_short_hemisp = short_direct_normal*cos(zenith angle) + down_short_diffuse. |
Measurements: | sgpsirsE7.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/31/2010 | 1925 | 08/31/2010 | 1630 | Incorrect |
Subject: | SGP/SIRS/E19 - Instrument mux problem |
DataStreams: | sgpsirsE19.b1 |
Description: | Beginning 7/31, the upwelling_longwave_hemispheric data were intermittent with periods of erratic and missing data typically during daylight hours. A multiplexer was found to be the problem and replaced 8/31 1630GMT. |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/21/2010 | 1912 | 10/10/2010 | 0015 | Suspect |
11/03/2010 | 1700 | 11/03/2010 | 1800 | Suspect |
Subject: | SGP/SIRS/E19 - Intermittent bad data |
DataStreams: | sgpsirsE19.b1 |
Description: | From 9/21 to 10/10 0015GMT the DSH (down_short_hemisp) values were intermittently missing while simultaneously ULH (up_long_hemisp) and DLHS (down_long_hemisp_shaded) values were much lower than possible values. This problem was attributed to an unidentified mux related problem. Although the problem did not recur after 10/10, the mux was replaced on 11/03. The problem was intermittent, occurring for significant parts of each day. The QC flags appear to adequately flag bad data. |
Measurements: | sgpsirsE19.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/17/2011 | 1100 | 06/28/2011 | 1600 | Incorrect |
03/11/2011 | 1900 | 05/02/2011 | 1513 | Incorrect |
Subject: | SGP/SIRS/E15 - NIP failure |
DataStreams: | sgpsirsE15.b1 |
Description: | The short_direct_normal (NIP instrument) cable failed during this time period. Data are not recoverable. Users can derive an estimate of direct normal values using the following formula: short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle) |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/12/2011 | 0539 | 06/14/2011 | 1556 | Incorrect |
Subject: | SGP/SIRS/E13 - NIP damaged by lightning strike |
DataStreams: | sgpsirsE13.b1 |
Description: | Apparent lightning strike in the instrument cluster area resulted in a failed NIP. The SIRS was due for calibration change outs so the US, DS, DD and NIP were replaced. The updated program was loaded at approximately 1730 GMT. An estimate of direct normal values can be derived using the following formula: short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle) |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/02/2011 | 2142 | 06/15/2011 | 1900 | Incorrect |
Subject: | SGP/SIRS/E20 - Upwelling LW incorrect |
DataStreams: | sgpsirsE20.b1 |
Description: | The UIR signal (up_long_hemisp datastream) had connection and cabling problems during the time period specified. Site ops personnel replaced the Multiplexer on 6/15/2011 at 19:00 resolving the problem. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/16/2011 | 2100 | 07/13/2011 | 1811 | Incorrect |
Subject: | SGP/SIRS/E20 - Downwelling LW incorrect |
DataStreams: | sgpsirsE20.b1 |
Description: | The downwelling longwave hemispheric shaded (down_long_hemisp_shaded ) values periodically were missing or incorrect. Connections on the Multiplexer were reseated on 7/13/2011 at 18:11 resolving the problem. |
Measurements: | sgpsirsE20.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/19/2011 | 1512 | 10/27/2011 | 1559 | Incorrect |
Subject: | SGP/SIRS/E13 - Intermittent upwelling longwave |
DataStreams: | sgpsirsE13.b1 |
Description: | Beginning 9/19/2011 @ 15:12, the upwelling longwave values are often spiking to large and small values throughout the day. A multiplexer was found to be the problem and the ops replaced it on 10/27/2011. Incorrect data are not recoverable for the specified time range. However, good data exists within the time range. The SGPQCRAD VAP data stream provides flags for "good" data and appears to accurately flag bad data during this time range. Users are advised to use this data stream to screen for correct up_long_hemisp values. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/03/2012 | 0000 | 02/13/2012 | 1823 | Incorrect |
Subject: | SGP/SIRS/E9 - Tracker failure |
DataStreams: | sgpsirsE9.b1 |
Description: | The solar tracker was not functioning during these periods. OPS found the solar tracker not running, power cycled suntracker and it normal operations resumed. Data from instruments directly reliant on tracker operations (short_direct_normal and down_short_diffuse_hemisp) are not recoverable. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/09/2012 | 0000 | 06/28/2012 | 2009 | Incorrect |
Subject: | SGP/SIRS/E35 - Upwelling longwave resistor problem |
DataStreams: | sgpsirsE35.b1 |
Description: | The up_long_hemisp was missing or showing intermittent spikes for the specified period. OPS discovered a bad UIR resistor and replaced it with new resistor. |
Measurements: | sgpsirsE35.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/13/2012 | 0000 | 09/20/2012 | 2045 | Suspect |
Subject: | SGP/SIRS/E13 - Instrument problem |
DataStreams: | sgpsirsE13.b1 |
Description: | up_long_hemisp measurements are intermittant and remain so after extensive troubleshooting. This problem will likly remain open ended until site ops can replace the cable which serves the up_long_hemisp instrument (i.e. the Eppley PIR). |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/30/2012 | 2058 | 09/20/2012 | 1852 | Does not affect quality |
Subject: | SGP/SIRS/E13 - Reprocessed: Incorrect UIR calibration |
DataStreams: | sgpsirsE13.b1 |
Description: | For the time range specified the UIR had incorrect calibration coefficients applied. The k1 coefficient applied was 0.25042 when it should have been 0.2558. This resulted in the instrument under reporting up_long_hemsip by approximately 2.1%. Reprocessing completed 20121119 |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/05/2012 | 0000 | 05/15/2012 | 2359 | Does not affect quality |
Subject: | SGP/SIRS/E32 - Reprocessed: Partial shading |
DataStreams: | sgpsirsE32.b1 |
Description: | Shading of the PSP radiometer occurred after sunrise for a few minutes between 1215 and 1300 UTC affecting the downwelling_shortwave_hemisp variable as well as the associated min, max, std, and inst measurements. The shading was caused by the presence of a narrow antenna that was later relocated. The data have been reprocessed to set specific affected periods to the missing_value (-9999). Specific times affected were: 20120505: 1221-1229 20120506: 1230 20120509: 1233-1237 20120510: 1235-1239 20120513: 1243 20120514: 1243-1244 |
Measurements: | sgpsirsE32.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/02/2012 | 1530 | 10/18/2012 | 1930 | Incorrect |
Subject: | SGP/SIRS/E12 - Shadowband misalignment |
DataStreams: | sgpsirsE12.b1 |
Description: | The E12 tracker had failed from 7/20 to 8/2. The tracker was replaced and returned to service on 8/2. However, the tracker was not aligned correctly until 10/18. Data for short_direct_normal (NIP instrument) and down_short_diffuse (8-48 instrument) are bad and not recoverable during this entire time range. |
Measurements: | sgpsirsE12.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/25/2012 | 0850 | 11/21/2012 | 1540 | Incorrect |
Subject: | SGP/SIRS/E13 - Upwelling LW hemisp connection |
DataStreams: | sgpsirsE13.b1 |
Description: | On 10/25 an intermittent problem began on the up_long_hemispheric (UIR) instrument dome thermistor which resulted in incorrect or missing calculated flux. Maintenance tightened connections on 11/21 which appears to have resolved the problem. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/16/2012 | 0000 | 05/05/2012 | 2359 | Does not affect quality |
Subject: | SGP/SIRS/E35 - Reprocessed: Partial shading |
DataStreams: | sgpsirsE35.b1 |
Description: | Shading of the PSP radiometer occurred after sunrise for a few minutes each day of the reported date period, between 1200 and 1300 UTC. Issue was present in the downwelling shortwave hemispheric variable. The shading was caused by the presence of a narrow antenna that was later relocated. The data have been reprocessed to set specific affected periods to the missing_value (-9999). |
Measurements: | sgpsirsE35.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/16/2012 | 0000 | 05/30/2012 | 2359 | Does not affect quality |
Subject: | SGP/SIRS/E35 - Reprocessed: Partial shading |
DataStreams: | sgpsirsE35.b1 |
Description: | Shading of the NIP radiometer occurred after sunrise for a few minutes each day of the reported date period, between 1145 and 1215 UTC. Issue was present in the direct normal variable. The shading was caused by the presence of a narrow antenna that was later relocated. The data have been reprocessed to set specific affected periods to the missing_value (-9999). |
Measurements: | sgpsirsE35.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/17/2012 | 0000 | 05/04/2012 | 2359 | Does not affect quality |
Subject: | SGP/SIRS/E36 - Reprocessed: Partial shading |
DataStreams: | sgpsirsE36.b1 |
Description: | Shading of the PSP radiometer occurred for a few minutes after sunrise each day of the reported date period, between 1200 and 1315 UTC. Issue was present in the downwelling shortwave hemispheric variable. The shading was caused by the presence of a narrow antenna that was later relocated. The data have been reprocessed to set specific affected periods to the missing_value (-9999). |
Measurements: | sgpsirsE36.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/10/2001 | 1800 | 07/10/2002 | 1330 | Incorrect |
Subject: | SGP/SIRS/E18 - Multiplexer wiring problem |
DataStreams: | sgpsirsE18.b1 |
Description: | Review of archived data discovered a SGP/SIRS/E18 mutiplexer problem that wasn't properly documented. The multiplexer wiring caused incorrect temperature readings on the up_long_hemisp(UIR) and down_long_hemisp(DIR) instruments. This resulted in incorrect flux measurements for the time range specified. The upwelling and downwelling longwave data in the sgpsirsE18.b1 datastream are not recoverable. However, the qc checks performed in the spgqcrad1longE18.c1 datastream do effectively filter out the bad data during this time range. |
Measurements: | sgpsirsE18.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/26/2012 | 0000 | 01/03/2013 | 1923 | Incorrect |
Subject: | SGP/SIRS/E34 - Tracker failure |
DataStreams: | sgpsirsE34.b1 |
Description: | The tracker at failed to wake up on 12/26/2012. The problem persisted throughout the time range specified. On 1/3/2013 the tracker was power cycled and returned to normal operation. The tracker malfunction adversely affected the data from the direct normal instrument (short_direct_normal). Also affected is the diffuse shaded global data (down_short_diffuse). |
Measurements: | sgpsirsE34.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/27/2012 | 1300 | 12/13/2012 | 1800 | Incorrect |
Subject: | SGP/SIRS/E15 - Tracker misaligned |
DataStreams: | sgpsirsE15.b1 |
Description: | During this time the tracker was misaligned due to an internal mechanical failure. Tracker was repaired and returned to service on 12/13/2012 at 18:00 UTC. Affected data are short_direct_normal and down_short_diffuse_hemisp. Generally, data are not recoverable. However, there are periods when the tracker was shading properly each day. The sgpqcrad1long vap datastream adequately finds periods of good data and the user is directed to using that datastream for quality checked diffuse and direct data. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/30/2013 | 0000 | 03/26/2013 | 2122 | Incorrect |
Subject: | SGP/SIRS/E13 - UIR Instrument problem |
DataStreams: | sgpsirsE13.b1 |
Description: | Due to a bad connection the up_long_hemisp datastream (upwelling Epply PIR instrument) has intermittent missing data during the time range specified. Missing data are not recoverable. However, the sgpqcrad1longE13.c1 datastream adequately identifies missing values and removes them. Recommendation to the user is to use this VAP datastream for valid values of up_long_hemisp irradiance from this station. |
Measurements: | sgpsirsE13.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/17/2013 | 0304 | 05/28/2013 | 1540 | Missing |
05/30/2013 | 0110 | 06/06/2013 | 1625 | Missing |
Subject: | SGP/SIRS/E15 - Missing NIP data |
DataStreams: | sgpsirsE15.b1 |
Description: | The radiometer tracker over-wound and pulled the pyrheliometer (NIP) cable from its connector resulting in missing short_direct_normal data during the specified time ranges. Cable repaired on 5/28 but only lasted two days. Cable was replaced 6/6 resolving the problem. The short_direct_normal data are not recoverable. The data can be approximated from the two other shortwave datastreams available using the following relationship: short_direct_normal = (down_short_hemisp - down_short_diffuse)/cos(zenith angle) |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/19/2013 | 2020 | 05/22/2013 | 2105 | Incorrect |
Subject: | SGP/SIRS/E9 - Tracker inoperative |
DataStreams: | sgpsirsE9.b1 |
Description: | The solar tracker was not functioning during this periods. OPS found the solar tracker not running, power cycled 05/22/13 and normal operation resumed. Data from instruments directly reliant on tracker operations (short_direct_normal and down_short_diffuse_hemisp) are not recoverable. |
Measurements: | sgpsirsE9.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/01/2013 | 0000 | 09/24/2013 | 1700 | Suspect |
Subject: | SGP/SIRS/E34 - Ventilation fan failure |
DataStreams: | sgpsirsE34.b1 |
Description: | On June 1, 2013 the ventilator fan on the PSP (down_short_hemisp) instrument failed. This adversely affected the down_short_hemisp data during the specified period. Data review indicates the daytime DS data appear unaffected during the problem period. However, the additional uncertainly in down_short_hemisp due to this failure is not quantifiable. The down_short_hemisp from the b1 datastream should be avoided during this time period. The sgpqcrad1longE34 BestEstimate_down_short_hemisp remains the most accurate estimate of down_short_hemisp since it primarily uses the unaffected direct normal and diffuse measurements. |
Measurements: | sgpsirsE34.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/21/2013 | 1556 | 12/19/2013 | 1945 | Does not affect quality |
Subject: | SGP/SIRS/E32 - Reprocessed: Incorrect longwave calibration coefficients |
DataStreams: | sgpsirsE32.b1 |
Description: | During the time range specified the UIR and DIR serial numbers were correct but incorrect calibration coefficients were applied in the datalogger. up_long_hemisp (SN# 29595F3) wrong k1 cal :0.22037 W/(m^2*uV) correct k1 cal: 0.2257 W/(m^2*uV) down_long_hemisp (SN# 29593F3) wrong k1 cal :0.22919 W/(m^2*uV) correct k1 cal: 0.2404 W/(m^2*uV) |
Measurements: | sgpsirsE32.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/09/2013 | 1810 | 12/19/2013 | 1759 | Does not affect quality |
Subject: | SGP/SIRS/E34 - Reprocessed: Incorrect LW calibration coefficients |
DataStreams: | sgpsirsE34.b1 |
Description: | During the time range specified the UIR and DIR serial numbers were correct but incorrect calibration coefficients were applied in the datalogger. up_long_hemisp (SN# 30009F3) wrong k1 cal :0.30648 W/(m^2*uV) correct k1 cal: 0.32051 W/(m^2*uV) down_long_hemisp (SN# 30011F3) wrong k1 cal :0.26565 W/(m^2*uV) correct k1 cal: 0.27855 W/(m^2*uV) |
Measurements: | sgpsirsE34.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/17/2013 | 2025 | 12/18/2013 | 1655 | Does not affect quality |
Subject: | SGP/SIRS/E35 - Reprocessed: Incorrect LW calibration coefficients |
DataStreams: | sgpsirsE35.b1 |
Description: | up_long_hemisp (SN# 31641F3) wrong k1 cal :0.2482 W/(m^2*uV) correct k1 cal: 0.2545 W/(m^2*uV) down_long_hemisp (SN# 31642F3) wrong k1 cal :0.25875 W/(m^2*uV) correct k1 cal: 0.2646 W/(m^2*uV) |
Measurements: | sgpsirsE35.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/16/2013 | 1914 | 12/18/2013 | 2153 | Does not affect quality |
Subject: | SGP/SIRS/E36 - Reprocessed: Incorrect LW calibration coefficients |
DataStreams: | sgpsirsE36.b1 |
Description: | During the time range specified the UIR and DIR serial numbers were correct but incorrect calibration coefficients were applied in the datalogger. up_long_hemisp (SN# 29591F3) wrong k1 cal :0.2309 W/(m^2*uV) correct k1 cal: 0.2387 W/(m^2*uV) down_long_hemisp (SN# 30691F3) wrong k1 cal :0.24376 W/(m^2*uV) correct k1 cal: 0.2646 W/(m^2*uV) |
Measurements: | sgpsirsE36.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/03/2014 | 1200 | 03/10/2014 | 1523 | Missing |
Subject: | SGP/SIRS/E32 - SIRS data logger program not running |
DataStreams: | sgpsirsE32.b1 |
Description: | During the time range specified the data logger was not running. This was caused initially by a power failure at the site. |
Measurements: | sgpsirsE32.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/28/2013 | 0245 | 07/09/2013 | 1740 | Missing |
Subject: | SGP/SIRS/E15 - tracker failure |
DataStreams: | sgpsirsE15.b1 |
Description: | During the time range specified the E15 tracker failed and severed the cables to the direct (short_direct_normal) and diffuse(down_short_diffuse_hemisp) instruments. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/22/2014 | 1200 | 05/08/2014 | 1600 | Incorrect |
Subject: | SGP/SIRS/E36 - Instrument problem |
DataStreams: | sgpsirsE36.b1 |
Description: | During the time range specified the solar tracker at this station was inoperative. This adversely affects the down_short_diffuse_hemisp data stream (shaded global 8-48 instrument) and short_direct_normal data stream (pyrheliometer instrument). |
Measurements: | sgpsirsE36.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/19/2014 | 2142 | 05/30/2014 | 1557 | Missing |
Subject: | SGP/SIRS/E15 - Data missing |
DataStreams: | sgpsirsE15.b1 |
Description: | The Short Direct Normal (NIP) instrument had a broken wire in the connector causing data to be missing or incorrect. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/07/2014 | 1728 | 07/18/2014 | 1933 | Incorrect |
06/27/2014 | 0835 | 07/03/2014 | 0859 | Incorrect |
Subject: | SGP/SIRS/E15 - Broken wire resulting in missing data |
DataStreams: | sgpsirsE15.b1 |
Description: | The Short Direct Normal (NIP) instrument had a broken wire in the connector. The broken wire was repaired on 7/18/14. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/03/2014 | 0900 | 07/07/2014 | 1728 | Incorrect |
Subject: | SGP/SIRS/E15 - Solar tracker not functioning |
DataStreams: | sgpsirsE15.b1 |
Description: | The solar tracker was not functioning during the affected time range resulting in incorrect data. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/28/2014 | 1832 | 11/03/2014 | 1630 | Incorrect |
Subject: | SGP/SIRS/E32 - Instrument problem |
DataStreams: | sgpsirsE32.b1 |
Description: | The solar tracker was not functioning during the affected time range, resulting in incorrect data. |
Measurements: | sgpsirsE32.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/09/2014 | 1200 | 11/13/2014 | 1700 | Incorrect |
Subject: | SGP/SIRS/E35 - Instrument problem |
DataStreams: | sgpsirsE35.b1 |
Description: | The solar tracker was not functioning during the affected time range, resulting in incorrect data. |
Measurements: | sgpsirsE35.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/05/2014 | 1300 | 11/20/2014 | 2000 | Incorrect |
Subject: | SGP/SIRS/E15 - Instrument problem |
DataStreams: | sgpsirsE15.b1 |
Description: | Short_direct_normal instrument not operating correctly during the affected time period. |
Measurements: | sgpsirsE15.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/20/2012 | 0144 | 08/02/2012 | 1521 | Incorrect |
Subject: | SGP/SIRS/E12 - Tracker failure |
DataStreams: | sgpsirsE12.b1 |
Description: | Tracker failed and instrument was not correctly tracking the sun. |
Measurements: | sgpsirsE12.b1:
|