DQR ID | Subject | Data Streams Affected |
---|
D040608.2 | SGP/BRS/C1 - NIP sensor failure | sgpbrs20sC1.a0, sgpbrsC1.00, sgpbrsC1.b1 |
D050206.1 | SGP/BRS/C1 - Monthly Summary | sgpbrsC1.b1 |
D050225.2 | SGP/BRS/C1 - Reprocess: Incorrect Calibration Coefficients | sgpbrs20sC1.a0, sgpbrsC1.00, sgpbrsC1.b1 |
D050322.1 | SGP/BRS/C1 - low downwelling shortwave readings | sgpbrs20sC1.a0, sgpbrsC1.00, sgpbrsC1.b1 |
D060630.7 | SGP/BRS/C1 - Reprocessed: Longwave Calibration error | sgpbrsC1.b1 |
D061102.1 | SGP/BRS/C1 - Reprocess: Calibration error in Downwelling Longwave measurement | sgpbrs20sC1.a0, sgpbrsC1.b1 |
Subject: | SGP/BRS/C1 - NIP sensor failure |
DataStreams: | sgpbrs20sC1.a0, sgpbrsC1.00, sgpbrsC1.b1
|
Description: | Normal incidence values of downwelling shortwave radiation were
reported as -9999 (missing). The NIP instrument was damaged by
lightning in the area near the time of failure. |
Measurements: | sgpbrs20sC1.a0: - Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
Voltage(inst_direct_normal)
sgpbrsC1.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpbrsC1.b1: - Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
- Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
|
Subject: | SGP/BRS/C1 - Reprocess: Incorrect Calibration Coefficients |
DataStreams: | sgpbrs20sC1.a0, sgpbrsC1.00, sgpbrsC1.b1
|
Description: | Lightening strike on or near 6/2/2004 took the BRS NIP(31747E6) out of service, on or near
6/15 the NIP was replaced and the datalogger program was changed to reflect the new
NIP(31343E6). On 8/5/2004 the DIR (Downwelling longwave) instrument was changed out and a new
program was loaded to reflect a new DIR. The new program contained the original
installed shortwave instrument calibration coefficients including NIP 31747E6. Thus from 8/5 to
when the shortwave instruments were changed out on 12/3 the wrong s/n and calibration
factor (i.e. 31747E6) was applied to the actual NIP(31343E6)installed at BRS C1. |
Measurements: | sgpbrs20sC1.a0: - Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
Voltage(inst_direct_normal)
sgpbrsC1.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpbrsC1.b1: - Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
- Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
|
Subject: | SGP/BRS/C1 - low downwelling shortwave readings |
DataStreams: | sgpbrs20sC1.a0, sgpbrsC1.00, sgpbrsC1.b1
|
Description: | Downwelling shortwave (DS) values frequently drop below -10 W/m^2 at night, and are
consistently 20-40 W/m^2 less than the calculated downwelling shortwave during the day in
clear-sky conditions. Corrective maintenance on 12/17/2004 corrected this offset. It is not
clear which CM action corrected the problem since the DS instrument cable was grounded to
a new location and the DS ventilator fan was found in poor condition and was replaced.
Either of these issues could have led to the problem observed in this instrument. |
Measurements: | sgpbrs20sC1.a0: - Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
Voltage(inst_global)
sgpbrsC1.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpbrsC1.b1: - Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
- Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
Deviation(down_short_hemisp_std) - Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
- Down-welling unshaded pyranometer voltage(down_short_hemisp)
|
Subject: | SGP/BRS/C1 - Reprocess: Calibration error in Downwelling Longwave measurement |
DataStreams: | sgpbrs20sC1.a0, sgpbrsC1.b1
|
Description: | On 20031211 the Downwelling LW pyrgeometer was replaced but the calibrations were not
updated. Calibrations have been corrected in data beginning 20040615. |
Measurements: | sgpbrs20sC1.a0: - Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
sgpbrsC1.b1: - Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
- Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
- Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
- Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
- Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
Deviation(down_long_hemisp_shaded_std)
|