Data Quality Reports for Session: 179434 User: ql_data Completed: 09/06/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D030917.6SGP/BRS/C1 - Missing data due to Ice storm and clock problemssgp15swfanalbrs1longC1.c1Missing
D050502.3SGP/BRS/C1 - SWFANAL Data description error sgp15swfanalbrs1longC1.c1Does not affect quality


DQRID : D030917.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/13/2002180003/14/20021500Missing
03/09/2002200003/10/20022348Missing
Subject:
SGP/BRS/C1 - Missing data due to Ice storm and clock problems
DataStreams:sgp15swfanalbrs1longC1.c1
Description:
Data are missing due to power failures caused by an ice storm
and resulting system/instrument clock problems.
Measurements:sgp15swfanalbrs1longC1.c1:
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • difratiodn_measured
  • time_offset
  • time_offset_LST
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
  • difratiodn_clearskyfit
  • site
  • guvbdn_clearskyfit
  • Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit)
  • sun_earth_distance
  • base_time
  • North latitude(lat)
  • difratiodn_measured_stdev
  • difswfluxdn_cloudeffect
  • Irradiance, shortwave, downwelling, diffuse, measured(difswfluxdn_measured)
  • nsamples_gswfluxdn_clearskyfit
  • solar_cos_z
  • gswfluxdn_cloudeffect
  • base_time_LST
  • difcloudeffect_normalized
  • sswfluxdn_clearskyfit
  • nsamples_cloudfraction
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • sswfluxdn_measured
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • sswfluxdn_cloudeffect
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
  • Altitude above mean sea level(alt)
  • guvbdn_measured
  • nsamples_clearsky_detection
  • East longitude(lon)
  • nsamples_sswfluxdn_measured
  • Fractional Sky Cover(cloudfraction)
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)

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DQRID : D050502.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/01/2001000012/10/20032359Does not affect quality
Subject:
SGP/BRS/C1 - SWFANAL Data description error
DataStreams:sgp15swfanalbrs1longC1.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:sgp15swfanalbrs1longC1.c1:
  • sswfluxdn_cloudeffect
  • difswfluxdn_cloudeffect
  • gswfluxdn_cloudeffect

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