Data Quality Reports for Session: 138870 User: bsyin1 Completed: 11/21/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030916.6SGP/BRS/C1 - low downwelling shortwave readingssgpbrsC1.00, sgpbrsC1.a2, sgpbrs20sC1.a0, sgpbrs60sC1.a1
D030917.6SGP/BRS/C1 - Missing data due to Ice storm and clock problemssgpbrsC1.00, sgpbrsC1.a2, sgpbrs20sC1.a0, sgpbrs60sC1.a1, sgp1swfanalbrs1longC1.c1,
sgp15swfanalbrs1longC1.c1


DQRID : D030916.6
Start DateStart TimeEnd DateEnd Time
03/05/2001000004/17/20032359
Subject:
SGP/BRS/C1 - low downwelling shortwave readings
DataStreams:sgpbrsC1.00, sgpbrsC1.a2, sgpbrs20sC1.a0, sgpbrs60sC1.a1
Description:
Downwelling shortwave (DS) values frequently drop below -10 W/m^2 at night, and are 
consistently 20-40 W/m^2 less than the calculated downwelling shortwave during the day in 
clear-sky conditions. Corrective maintenance on 12/1/2004 corrected this offset.  It is not 
clear which CM action corrected the problem since the DS instrument cable was grounded to a 
new location and the DS ventilator fan was found in poor condition and was replaced.  
Either of these issues could have led to the problem observed in this instrument.
Measurements:sgpbrs60sC1.a1:
  • 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)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
sgpbrs20sC1.a0:
  • inst_global
sgpbrsC1.00:
  • Raw data stream - documentation not supported
sgpbrsC1.a2:
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • down_short_hemisp_std
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)

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DQRID : D030917.6
Start DateStart TimeEnd DateEnd Time
03/09/2002200003/10/20022348
03/13/2002180003/14/20021500
Subject:
SGP/BRS/C1 - Missing data due to Ice storm and clock problems
DataStreams:sgpbrsC1.00, sgpbrsC1.a2, sgpbrs20sC1.a0, sgpbrs60sC1.a1, sgp1swfanalbrs1longC1.c1,
sgp15swfanalbrs1longC1.c1
Description:
Data are missing due to power failures caused by an ice storm
and resulting system/instrument clock problems.
Measurements:sgp15swfanalbrs1longC1.c1:
  • site
  • base_time
  • Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
  • solar_cos_z
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • sswfluxdn_cloudeffect
  • nsamples_clearsky_detection
  • time_offset
  • time_offset_LST
  • difratiodn_measured_stdev
  • gswfluxdn_cloudeffect
  • difcloudeffect_normalized
  • sswfluxdn_clearskyfit
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
  • guvbdn_measured
  • lon
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • difratiodn_clearskyfit
  • Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit)
  • lat
  • nsamples_cloudfraction
  • sswfluxdn_measured
  • difratiodn_measured
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit)
  • guvbdn_clearskyfit
  • sun_earth_distance
  • difswfluxdn_cloudeffect
  • nsamples_gswfluxdn_clearskyfit
  • base_time_LST
  • alt
  • nsamples_sswfluxdn_measured
  • Fractional Sky Cover(cloudfraction)
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
sgpbrs60sC1.a1:
  • up_long_hemisp_std
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • vBatt
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • down_long_hemisp_shaded_std
  • alt
  • down_short_hemisp_std
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • up_short_hemisp_std
  • down_short_diffuse_hemisp_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • time_offset
  • lat
  • short_direct_normal_std
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • base_time
  • lon
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • 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)
sgp1swfanalbrs1longC1.c1:
  • difswfluxdn_cloudeffect
  • lat
  • coef_clearsky_guvb_b
  • coef_clearsky_guvb_a
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • solar_cos_z
  • sswfluxdn_measured
  • guvbdn_measured
  • coef_clearsky_albedo_a
  • coef_clearsky_albedo_b
  • Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit)
  • sswfluxdn_cloudeffect
  • coef_clearsky_ssw_a
  • coef_clearsky_ssw_b
  • coef_clearsky_difratio_b
  • coef_clearsky_difratio_a
  • sun_earth_distance
  • coef_clearsky_gsw_b
  • coef_clearsky_gsw_a
  • coef_clearsky_dsw_c
  • sun_earth_distance_dailyaverage
  • coef_clearsky_dsw_a
  • coef_clearsky_dsw_b
  • lon
  • base_time
  • flag_clearsky_detection
  • time_offset
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • difratiodn_clearskyfit
  • guvbdn_clearskyfit
  • coef_date
  • Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
  • sswfluxdn_clearskyfit
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
  • base_time_LST
  • site
  • difratiodn_measured
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • time_offset_LST
  • alt
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit)
  • gswfluxdn_cloudeffect
sgpbrs20sC1.a0:
  • inst_diffuse
  • inst_down_long_shaded_dome_resist
  • lon
  • inst_up_long_dome_resist
  • alt
  • inst_up_short_hemisp
  • lat
  • base_time
  • time_offset
  • inst_global
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_down_long_shaded_case_resist
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist
  • inst_direct_normal
sgpbrsC1.00:
  • Raw data stream - documentation not supported
sgpbrsC1.a2:
  • down_long_hemisp_shaded_std
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • base_time
  • lat
  • inst_up_long_dome_temp
  • alt
  • up_long_hemisp_std
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • lon
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • inst_down_long_shaded_case_temp
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • down_short_diffuse_hemisp_std
  • inst_up_long_case_temp
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • down_short_hemisp_std
  • time_offset
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • inst_down_long_shaded_dome_temp
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • short_direct_normal_std
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • up_short_hemisp_std
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • vBatt

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