Data Quality Reports for Session: 124760 User: perez Completed: 12/11/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030228.1SGP/IRT/C1 - wrong serial numbersgpirtC1.a1
D030324.1SGP/IRT25m/C1 - Reprocess: up_short_hemisp needs -1 multipliersgpirt25m20sC1.a0, sgpirt25mC1.00, sgpirt25mC1.a1, sgpirt25mC1.a2
D050105.2SGP/IRT/C1 - Reprocess: Some min and max values swappedsgpirtC1.b1
D060630.6SGP/IRT/C1 - Reprocess: Longwave Calibration errorsgpirt25mC1.b1


DQRID : D030228.1
Start DateStart TimeEnd DateEnd Time
11/05/2002221502/19/20031610
Subject:
SGP/IRT/C1 - wrong serial number
DataStreams:sgpirtC1.a1
Description:
When the IRT was moved from the MWR to a dedicated data logger, the wrong serial number 
was entered.
Measurements:sgpirtC1.a1:
  • Sky Infra Red Temperature Maxima(sky_ir_temp_max)
  • base time(base_time)
  • Logger panel temperature(logger_temp)
  • Dummy altitude for Zeb(alt)
  • lon(lon)
  • Battery Voltage(internal_voltage)
  • Sky Infra Red Temperature Minima(sky_ir_temp_min)
  • Time offset of tweaks from base_time(time_offset)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std)
  • lat(lat)

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DQRID : D030324.1
Start DateStart TimeEnd DateEnd Time
10/13/2001200203/21/20032024
Subject:
SGP/IRT25m/C1 - Reprocess: up_short_hemisp needs -1 multiplier
DataStreams:sgpirt25m20sC1.a0, sgpirt25mC1.00, sgpirt25mC1.a1, sgpirt25mC1.a2
Description:
The upwelling hemispheric shortwave measurement
   in the SGP.C1 IRT25m data streams for the time
   period noted requires a (-1) multiplier to correct
   for swapped connections at installation.
Measurements:sgpirt25mC1.a2:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
  • 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)
sgpirt25mC1.a1:
  • 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)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
sgpirt25mC1.00:
  • null(Raw data stream - documentation not supported)
sgpirt25m20sC1.a0:
  • Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_short_hemisp_tp)

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DQRID : D050105.2
Start DateStart TimeEnd DateEnd Time
12/18/2003160302/02/20052359
Subject:
SGP/IRT/C1 - Reprocess: Some min and max values swapped
DataStreams:sgpirtC1.b1
Description:
During the time period specified the minimum and maximum sky_ir_temp
values for the first record of each hour are swapped with the minimum
being reported as sky_ir_temp_max and the maximum being reported as
sky_ir_temp_min.
Measurements:sgpirtC1.b1:
  • Sky Infra Red Temperature Maxima(sky_ir_temp_max)
  • Sky Infra Red Temperature Minima(sky_ir_temp_min)

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DQRID : D060630.6
Start DateStart TimeEnd DateEnd Time
01/15/2004205202/14/20062050
Subject:
SGP/IRT/C1 - Reprocess: Longwave Calibration error
DataStreams:sgpirt25mC1.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:sgpirt25mC1.b1:
  • Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(inst_up_long_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)

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