Description: | 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)
Field tech reports the datalogger program was corrected on 4/27/04. Archive data review
shows this was not the case and the corrected datalogger program was uploaded sometime
late day 5/4/04. The end date for this DQR was chosen to be 5/5/04 0000 the first full day
of the correct datalogger program.
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)*123.27
US(corrected) = (US/113.19)*127.75
NIP(corrected)= (NIP/120.17)*126.69
DS(corrected) = (DS/118.46)*126.56 |
Measurements: | sgpsirsE11.00: - Raw data stream - documentation not supported
sgpsirsE11.b1: - up_short_hemisp_std
- Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
- Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
- Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
- short_direct_normal_std
- Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
- down_short_diffuse_hemisp_std
- Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
- Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
- Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
- Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
- Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
- Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
- Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
- down_short_hemisp_std
- Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
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