Data Quality Reports for Session: 139434 User: dmfoper Completed: 01/06/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040615.5SGP/SIRS/E12 - Incorrect TimessgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0, sgp1swfanalsirs1longE12.c1,
sgp15swfanalsirs1longE12.c1
D050502.15SGP/SIRS/E21 - SWFANAL Data description error sgp1swfanalsirs1longE21.c1, sgp15swfanalsirs1longE21.c1
D050502.7SGP/SIRS/E12 - SWFANAL Data description error sgp1swfanalsirs1longE12.c1, sgp15swfanalsirs1longE12.c1


DQRID : D040615.5
Start DateStart TimeEnd DateEnd Time
02/19/2004221203/10/20042247
Subject:
SGP/SIRS/E12 - Incorrect Times
DataStreams:sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0, sgp1swfanalsirs1longE12.c1,
sgp15swfanalsirs1longE12.c1
Description:
The ntpd server (time adjustment) stopped working on Feb. 19th at 22:12:16 GMT, and the 
clock was corrected by -5600.177269 seconds
on March 10th at 22:47 GMT. The recorded times for observations are
off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds
on March 10th.
Measurements:sgpsirsE12.b1:
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • inst_up_long_case_temp
  • inst_down_long_shaded_case_temp
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • up_short_hemisp_std
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • down_short_diffuse_hemisp_std
  • down_long_hemisp_shaded_std
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • time_offset
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • vBatt
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • short_direct_normal_std
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • base_time
  • up_long_hemisp_std
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • inst_down_long_shaded_dome_temp
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • inst_up_long_dome_temp
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • down_short_hemisp_std
sgpsirsE12.00:
  • Raw data stream - documentation not supported
sgp15swfanalsirs1longE12.c1:
  • solar_cos_z
  • time_offset
  • difcloudeffect_normalized
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
  • guvbdn_clearskyfit
  • sswfluxdn_cloudeffect
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • nsamples_gswfluxdn_clearskyfit
  • sun_earth_distance
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • sswfluxdn_measured
  • nsamples_sswfluxdn_measured
  • nsamples_cloudfraction
  • time_offset_LST
  • base_time
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • difratiodn_clearskyfit
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit)
  • nsamples_clearsky_detection
  • gswfluxdn_cloudeffect
  • Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
  • Fractional Sky Cover(cloudfraction)
  • Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit)
  • difswfluxdn_cloudeffect
  • base_time_LST
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
  • difratiodn_measured
  • difratiodn_measured_stdev
  • site
  • guvbdn_measured
  • sswfluxdn_clearskyfit
sgp1swfanalsirs1longE12.c1:
  • coef_clearsky_albedo_a
  • coef_clearsky_albedo_b
  • time_offset_LST
  • coef_clearsky_guvb_a
  • coef_clearsky_guvb_b
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
  • guvbdn_measured
  • sswfluxdn_cloudeffect
  • Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
  • coef_date
  • sun_earth_distance_dailyaverage
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • flag_clearsky_detection
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • sswfluxdn_clearskyfit
  • gswfluxdn_cloudeffect
  • difratiodn_measured
  • coef_clearsky_difratio_b
  • coef_clearsky_difratio_a
  • sun_earth_distance
  • difratiodn_clearskyfit
  • coef_clearsky_gsw_a
  • coef_clearsky_dsw_c
  • coef_clearsky_dsw_a
  • coef_clearsky_dsw_b
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit)
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
  • coef_clearsky_ssw_a
  • guvbdn_clearskyfit
  • coef_clearsky_ssw_b
  • Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit)
  • sswfluxdn_measured
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • base_time_LST
  • site
  • coef_clearsky_gsw_b
  • solar_cos_z
  • difswfluxdn_cloudeffect
  • time_offset
  • base_time
sgpsirs20sE12.a0:
  • inst_down_long_shaded_case_resist
  • inst_global
  • inst_up_long_dome_resist
  • inst_up_long_case_resist
  • base_time
  • inst_direct_normal
  • inst_up_short_hemisp
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_up_long_hemisp_tp
  • time_offset
  • inst_down_long_shaded_dome_resist
  • inst_diffuse

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DQRID : D050502.15
Start DateStart TimeEnd DateEnd Time
09/13/1999235902/18/20012359
Subject:
SGP/SIRS/E21 - SWFANAL Data description error
DataStreams:sgp1swfanalsirs1longE21.c1, sgp15swfanalsirs1longE21.c1
Description:
The long name attribute for the cloud effect fields incorrectly
defines the cloud effect to be the difference between the 
clearskyfit and measured values:
   
"Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ;
   
The cloud effects are correctly calculated by subtracting the
irradiance calculated in the clear sky fit from the measured 
irradiance.
   
"Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ;
   
NOTE: this is just a documentation error.  The data are correctly
calculated.
Measurements:sgp1swfanalsirs1longE21.c1:
  • difswfluxdn_cloudeffect
  • gswfluxdn_cloudeffect
  • sswfluxdn_cloudeffect
sgp15swfanalsirs1longE21.c1:
  • sswfluxdn_cloudeffect
  • difswfluxdn_cloudeffect
  • gswfluxdn_cloudeffect

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DQRID : D050502.7
Start DateStart TimeEnd DateEnd Time
01/21/1996000010/28/20032359
Subject:
SGP/SIRS/E12 - SWFANAL Data description error
DataStreams:sgp1swfanalsirs1longE12.c1, sgp15swfanalsirs1longE12.c1
Description:
The long name attribute for the cloud effect fields incorrectly
defines the cloud effect to be the difference between the 
clearskyfit and measured values:
   
"Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ;
   
The cloud effects are correctly calculated by subtracting the
irradiance calculated in the clear sky fit from the measured 
irradiance.
   
"Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ;
   
NOTE: this is just a documentation error.  The data are correctly
calculated.
Measurements:sgp15swfanalsirs1longE12.c1:
  • sswfluxdn_cloudeffect
  • difswfluxdn_cloudeffect
  • gswfluxdn_cloudeffect
sgp1swfanalsirs1longE12.c1:
  • gswfluxdn_cloudeffect
  • sswfluxdn_cloudeffect
  • difswfluxdn_cloudeffect

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