Data Quality Reports for Session: 117891 User: perez Completed: 03/02/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060209.4NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensorsnsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00
D071025.3NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficientnsagndrad20sC1.a0, nsagndrad60sC1.b1


DQRID : D060209.4
Start DateStart TimeEnd DateEnd Time
02/07/2006091002/07/20062350
Subject:
NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00
Description:
During the power outage the upwelling global measurement from the PSP instrument shows a 
slight increase from -5 to +0 W/m2.  This is due to removal of thermal offsets induced by 
the AC heater during the power outage.  This heater is installed within the PSP 
ventilator - it is necessary for the NSA/C1 climate.
The upwelling longwave PIR instrument is unaffected due to case and dome temperature 
corrections.
The IRT is AC powered and was not operational during this time period.
Measurements:nsagndradC1.00:
  • null(Raw data stream - documentation not supported)
nsagndrad20sC1.a0:
  • Instantaneous Surface Infra-Red Signal(inst_sfc_ir_signal)
nsagndrad60sC1.b1:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D071025.3
Start DateStart TimeEnd DateEnd Time
10/04/2007013010/25/20072149
Subject:
NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficient
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:
Installed Gndrad PSP (upwelling shortwave hemispheric irradiance) had calibration 
coefficient RS applied when it should have used Rsc.  ARM is using IR corrected coefficients 
Rsc@45 and CFc@45 for PSPs deployed at all facilities.  

PSP #32012F3 should use RSc@45=109.39 and not Rs@45=110.97.  

Reprocessed to correct upwelling shortwave hemispheric irradiance (US) by:
US(new) = (US(old) / 110.97 ) * 109.39

Reprocessing completed March 2008.
Measurements:nsagndrad20sC1.a0:
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
nsagndrad60sC1.b1:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)

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