Data Quality Reports for Session: 119011 User: lindsay1m1 Completed: 04/18/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D080602.2SGP/SIRS/E21 - Failed Trackersgpsirs20sE21.a0, sgpsirsE21.b1
D080627.1SGP/SIRS/E21 - Ventilator Fan Failuresgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
D080722.1SGP/SIRS/E21 - Tracker inoperativesgpsirs20sE21.a0, sgpsirsE21.b1


DQRID : D080602.2
Start DateStart TimeEnd DateEnd Time
05/27/2008130005/31/20081715
06/09/2008003006/10/20081900
Subject:
SGP/SIRS/E21 - Failed Tracker
DataStreams:sgpsirs20sE21.a0, sgpsirsE21.b1
Description:
During the time ranges specified the SIRS solar tracker had failed for unspecified 
reasons.  Measurements of short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) will be 
incorrect and not recoverable.  Longwave data are unaffected.
Measurements:sgpsirs20sE21.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE21.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)

Back To Table of Contents

DQRID : D080627.1
Start DateStart TimeEnd DateEnd Time
08/01/2007000007/01/20081500
Subject:
SGP/SIRS/E21 - Ventilator Fan Failure
DataStreams:sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
Description:
Start time is uncertain due to length of time this problem existed.  During the time frame 
specified the PSP (down_short_hemisp) and 8-48 (down_short_diffuse_hemisp) ventilator 
fans failed. PM replaced the fans 7/1/2008 1500. 
Ventilator failure does adversely affect thermopile radiometer measurements but the extent 
has not been quantified. The 8-48 is significantly less affected than the PSP. Mentor 
suggests using component sum method detailed in SIRS
instrument handbook where down_short_hemisp = down_short_diffuse +
short_direct_normal * cos (zenith angle) for each time record.
Measurements:sgpsirsE21.00:
  • null(Raw data stream - documentation not supported)
sgpsirs20sE21.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
sgpsirsE21.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)

Back To Table of Contents

DQRID : D080722.1
Start DateStart TimeEnd DateEnd Time
07/19/2008232407/30/20081450
07/31/2008113008/13/20081545
08/15/2008163009/24/20081445
09/25/2008120010/21/20082150
Subject:
SGP/SIRS/E21 - Tracker inoperative
DataStreams:sgpsirs20sE21.a0, sgpsirsE21.b1
Description:
The solar tracker at this site had numerous failures over the time range of this DQR.  The 
result is non-recoverable data for any direct normal (NIP) or diffuse (8-48) broadband 
measurement.  Longwave data is generally unaffected by such failures.
Measurements:sgpsirs20sE21.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE21.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)

Back To Table of Contents


END OF DATA