Data Quality Reports for Session: 102292 User: rutan Completed: 10/25/2006


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060630.11SGP/SIRS/E3 - Reprocessed: Longwave Calibration errorsgpsirsE3.b1
D060630.12SGP/SIRS/E4 - Reprocessed: Longwave Calibration errorsgpsirsE4.b1
D060630.13SGP/SIRS/E5 - Reprocessed: Longwave Calibration errorsgpsirsE5.b1


DQRID : D060630.11
Start DateStart TimeEnd DateEnd Time
03/10/2004171502/08/20061730
Subject:
SGP/SIRS/E3 - Reprocessed: 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 have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second  averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data.  The 
reprocessed data were archived in August 2006.
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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DQRID : D060630.12
Start DateStart TimeEnd DateEnd Time
03/10/2004172002/22/20061615
Subject:
SGP/SIRS/E4 - Reprocessed: Longwave Calibration error
DataStreams:sgpsirsE4.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in ecember 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 have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data.

The reprocessed data were archived in October 2006.
Measurements:sgpsirsE4.b1:
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)


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DQRID : D060630.13
Start DateStart TimeEnd DateEnd Time
03/10/2004203002/22/20061817
Subject:
SGP/SIRS/E5 - Reprocessed: Longwave Calibration error
DataStreams:sgpsirsE5.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 have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data.

The reprocessed data were archived in October 2006.
Measurements:sgpsirsE5.b1:
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)


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