DQRID : D090818.2
Start DateStart TimeEnd DateEnd Time
06/16/2009201907/14/20091915
more
Subject:
SGP/SIRS/E18 -  Reprocessed and Corrected: Incorrect calibrations
DataStreams:sgpsirs20sE18.a0, 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]
Suggestions: 
Measurements:sgpsirs20sE18.a0:
  • Instantaneous Downwelling Hemispheric Shortwave, Pyranometer Thermopile Voltage(inst_global)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
more
sgpsirsE18.b1:
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
    Deviation(down_short_hemisp_std)
  • Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
    Standard Deviation(up_short_hemisp_std)
  • 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
more

Close this window