Data Quality Reports for Session: 146535 User: perez Completed: 12/17/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D121004.1SGP/SIRS/E33 - Instrument noise problemsgpsirs20sE33.a0, sgpsirsE33.b1
D121010.1SGP/SIRS/E33 - Instrument noise problemsgpsirsE33.b1, sgpsirs20sE33.a0
D121025.2SGP/SIRS/E33 - Reprocess: Incorrect UIR calibrationsgpsirs20sE33.a0, sgpsirsE33.b1
D121025.3SGP/SIRS/E33 - Reprocess: Incorrect DIR calibrationsgpsirs20sE33.a0, sgpsirsE33.b1
D121119.2SGP/SIRS/E33 - Reprocess: Incorrect LW calibrationsgpsirs20sE33.a0, sgpsirsE33.b1
D121211.6SGP/SIRS/E33 - Obstructionsgpsirs20sE33.a0, sgpsirsE33.b1


DQRID : D121004.1
Start DateStart TimeEnd DateEnd Time
02/01/2012000008/14/20121559
Subject:
SGP/SIRS/E33 - Instrument noise problem
DataStreams:sgpsirs20sE33.a0, sgpsirsE33.b1
Description:
The UIR instrument (up_long_hemisp) had significant noise starting from the commission 
date.  On 8/14/2012 15:59 the UIR was replaced which corrected the noise problem.
Measurements:sgpsirs20sE33.a0:
  • inst_up_short_hemisp
  • inst_up_long_case_resist
  • inst_up_long_hemisp_tp
  • inst_up_long_dome_resist
sgpsirsE33.b1:
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • inst_up_long_case_temp
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • inst_up_long_dome_temp
  • up_long_hemisp_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

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DQRID : D121010.1
Start DateStart TimeEnd DateEnd Time
08/14/2012161508/17/20121816
Subject:
SGP/SIRS/E33 - Instrument noise problem
DataStreams:sgpsirsE33.b1, sgpsirs20sE33.a0
Description:
During troubleshooting of the UIR (up_long_hemisp) the UIR and DIR (down_long_hemsip) 
pyrgeometers were swapped to help isolate an instrument noise issue.  After this swap it was 
determined that the noise was associated with this specific instrument.

For the time range specified 8/14 to 8/17 the DIR data are not recoverable since the 
instrument was faulty (it was the old bad UIR). The instrument was replaced with spare on 8/17.
Measurements:sgpsirs20sE33.a0:
  • inst_down_long_shaded_dome_resist
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_down_long_shaded_case_resist
sgpsirsE33.b1:
  • down_long_hemisp_shaded_std
  • inst_down_long_shaded_dome_temp
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • inst_down_long_shaded_case_temp
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)

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DQRID : D121025.2
Start DateStart TimeEnd DateEnd Time
08/14/2012160009/26/20121839
Subject:
SGP/SIRS/E33 - Reprocess: Incorrect UIR calibration
DataStreams:sgpsirs20sE33.a0, sgpsirsE33.b1
Description:
During troubleshooting of the UIR (up_long_hemisp) the UIR and DIR (down_long_hemsip) 
pyrgeometers were swapped to help isolate an instrument noise issue.  

The replacement UIR instrument installed on 8/14 had incorrect calibration coefficients 
applied.  The serial number was correct.

wrong UIR k1 cal = 0.2376
correct UIR k1 cal = 0.2451

Data from 8/14 to 9/26 will be reprocess.
Measurements:sgpsirs20sE33.a0:
  • inst_up_short_hemisp
  • inst_up_long_case_resist
  • inst_up_long_hemisp_tp
  • inst_up_long_dome_resist
sgpsirsE33.b1:
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • up_long_hemisp_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

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DQRID : D121025.3
Start DateStart TimeEnd DateEnd Time
08/17/2012181709/26/20121839
Subject:
SGP/SIRS/E33 - Reprocess: Incorrect DIR calibration
DataStreams:sgpsirs20sE33.a0, sgpsirsE33.b1
Description:
During troubleshooting of the UIR (up_long_hemisp) the UIR and DIR (down_long_hemsip) 
pyrgeometers were swapped to help isolate an instrument noise issue.  That swap resulted in 
bad DIR data from 8/14-8/17 (documented in D121010.1)

A replacement DIR instrument installed on 8/17 had incorrect calibration coefficients 
applied.  The serial number was correct.

wrong DIR k1 cal = 0.2967
correct DIR k1 cal =  0.3086

Data from 8/17 to 9/26 will be reprocess.
Measurements:sgpsirs20sE33.a0:
  • inst_down_long_shaded_dome_resist
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_down_long_shaded_case_resist
sgpsirsE33.b1:
  • down_long_hemisp_shaded_std
  • inst_down_long_shaded_dome_temp
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • inst_down_long_shaded_case_temp
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)

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DQRID : D121119.2
Start DateStart TimeEnd DateEnd Time
08/17/2011000008/14/20121600
Subject:
SGP/SIRS/E33 - Reprocess: Incorrect LW calibration
DataStreams:sgpsirs20sE33.a0, sgpsirsE33.b1
Description:
During the time range specified the UIR and DIR serial numbers are correct but incorrect 
calibration coefficients were applied in the datalogger.  

up_long_hemisp (SN# 30058F3) 
  wrong k1 cal :0.2679 W/(m^2*uV)
  correct k1 cal: 0.2740 W/(m^2*uV)

down_long_hemisp (SN# 30085F3) 
  wrong k1 cal :0.2376 W/(m^2*uV)
  correct k1 cal: 0.2451 W/(m^2*uV)

Data will be reprocessed.
Measurements:sgpsirs20sE33.a0:
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_down_long_shaded_case_resist
  • inst_up_long_dome_resist
  • inst_down_long_shaded_dome_resist
  • inst_up_long_case_resist
  • inst_up_long_hemisp_tp
sgpsirsE33.b1:
  • inst_down_long_shaded_dome_temp
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • inst_up_long_dome_temp
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • down_long_hemisp_shaded_std
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • inst_up_long_case_temp
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • inst_down_long_shaded_case_temp
  • up_long_hemisp_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)

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DQRID : D121211.6
Start DateStart TimeEnd DateEnd Time
04/16/2012000005/30/20122359
Subject:
SGP/SIRS/E33 - Obstruction
DataStreams:sgpsirs20sE33.a0, sgpsirsE33.b1
Description:
Shading of the PSP and NIP radiometers occurred after sunrise each day of the reported 
date period, during the time between 1145 and 1215 UTC. Issue is present in the downwelling 
shortwave hemispheric and shortwave direct normal variables. The shading was caused by 
the presence of an antenna that was later relocated. Data is to be reprocessed and 
designated as missing for the affected time period each day.
Measurements:sgpsirs20sE33.a0:
  • inst_direct_normal
  • inst_global
sgpsirsE33.b1:
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • down_short_hemisp_std
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)

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