Data Quality Reports for Session: 100692 User: anderberg Completed: 07/25/2006


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060630.11SGP/SIRS/E3 - Reprocess: Longwave Calibration errorsgpsirsE3.b1


DQRID : D060630.11
Start DateStart TimeEnd DateEnd Time
03/10/2004171502/08/20061730
Subject:
SGP/SIRS/E3 - Reprocess: Longwave Calibration error
DataStreams:sgpsirsE3.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 are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:sgpsirsE3.b1:
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)


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