DQRID : D030917.16
Start DateStart TimeEnd DateEnd Time
03/13/2002180103/14/20021602
03/09/2002210103/10/20022125
more
Subject:
SGP/SIRS/C1 - Missing data due to Ice storm and clock problems
DataStreams:sgpsirsC1.a2, sgpsirs60sC1.a1, sgpsirsC1.00, sgp1swfanalsirs1longC1.c1, sgpsirsC1.b1,
sgp15swfanalsirs1longC1.c1, sgpsirs20sC1.a0
Description:
Data are missing due to power failures caused by an ice storm
and resulting system/instrument clock problems.
Suggestions: 
Measurements:sgpsirs60sC1.a1:
  • Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Upwelling longwave hemispheric irradiance, pyrgeometer, maxima(up_long_hemisp_max)
  • Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
  • Time offset from base_time(time_offset)
  • base time in epoch(base_time)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
    Deviation(down_short_hemisp_std)
  • Downwelling longwave hemispheric irradiance, shaded pyrgeometer(down_long_hemisp_shaded)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Battery voltage(vBatt)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
    Standard Deviation(up_long_hemisp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
    Standard Deviation(up_short_hemisp_std)
  • Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • -180.0 - +180.0(alt)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
    Deviation(down_short_diffuse_hemisp_std)
  • North Latitude(lat)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • Downwelling longwave hemispheric irradiance, shaded pyrgeometer, standard
    deviation(down_long_hemisp_shaded_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • lon(lon)
more
sgp1swfanalsirs1longC1.c1:
  • Clear-sky Detection Flag (clrf)(flag_clearsky_detection)
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • Measured Downwelling Summed Shortwave Irradiance
    (dirfluxdn_measured+diffluxdn_measured) (ssw)(sswfluxdn_measured)
  • Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
  • site location(site)
  • Measured Downwelling Global UVB Irradiance (uvb)(guvbdn_measured)
  • Time Offset from base_time_LST(time_offset_LST)
  • Clear-sky Offset Coefficient c for Global minus Summed Shortwave Irradiance
    Difference (SCORc)(coef_clearsky_dsw_c)
  • Clear-sky Fit Coefficient a to Global minus Summed Shortwave Irradiance
    Difference (SCORa)(coef_clearsky_dsw_a)
  • Clear-sky Fit Coefficient b to Global minus Summed Shortwave Irradiance
    Difference (SCORb)(coef_clearsky_dsw_b)
  • Daily Averaged Distance from the Earth to the Sun (auavg)(sun_earth_distance_dailyaverage)
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • Clear-sky Fit Coefficient a to Summed Shortwave Irradiance (CSWa)(coef_clearsky_ssw_a)
  • Clear-sky Fit Coefficient b to Summed Shortwave Irradiance (CSWb)(coef_clearsky_ssw_b)
  • Date (YYMMDD LST) for which the Coefficients are Applicable(coef_date)
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • Measured Downwelling Diffuse Irradiance to Downwelling Global Irradiance Ratio
    (difr)(difratiodn_measured)
  • Time offset from base_time(time_offset)
  • Clear-sky Fit Estimated Downwelling Diffuse Irradiance to Downwelling Global
    Irradiance Ratio (cdifr)(difratiodn_clearskyfit)
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
  • Cosine of the Solar Zenith Angle Z (CosZ)(solar_cos_z)
  • Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)(guvbdn_clearskyfit)
  • base time in epoch(base_time)
  • Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
  • Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance
    (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)(sswfluxdn_clearskyfit)
  • Clear-sky Fit Coefficient b to Albedo (Albb)(coef_clearsky_albedo_b)
  • Clear-sky Fit Coefficient a to Albedo (Alba)(coef_clearsky_albedo_a)
  • -180.0 - +180.0(alt)
  • North Latitude(lat)
  • lon(lon)
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
  • Beginning Time of File (LST)(base_time_LST)
  • Distance from the Earth to the Sun (au)(sun_earth_distance)
  • Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements
    (calb)(albedosw_clearskyfit)
  • Clear-sky Fit Coefficient a to Global UVB Irradiance (UVBa)(coef_clearsky_guvb_a)
  • Clear-sky Fit Coefficient b to Global UVB Irradiance (UVBb)(coef_clearsky_guvb_b)
  • Clear-sky Fit Coefficient b to Diffuse Irradiance to Total Irradiance Ratio
    (DFRb)(coef_clearsky_difratio_b)
  • Clear-sky Fit Coefficient a to Diffuse Irradiance to Total Irradiance Ratio
    (DFRa)(coef_clearsky_difratio_a)
  • Difference: sswfluxdn_clearskyfit - sswfluxdn_measured (sswfcg)(sswfluxdn_cloudeffect)
  • Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
  • Clear-sky Fit Coefficient a to Global Shortwave Irradiance (CSWa)(coef_clearsky_gsw_a)
  • Clear-sky Fit Coefficient b to Global Shortwave Irradiance (CSWb)(coef_clearsky_gsw_b)
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
more
sgpsirsC1.a2:
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
    Deviation(down_short_hemisp_std)
  • Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • North Latitude(lat)
  • -180.0 - +180.0(alt)
  • lon(lon)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
  • Time offset from base_time(time_offset)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
  • Battery voltage(vBatt)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
    Standard Deviation(up_long_hemisp_std)
  • base time in epoch(base_time)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
  • Instantaneous upwelling pyrgeometer case thermistor temperature, pyrgeometer(inst_up_long_case_temp)
  • Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_netir)
  • Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
    Standard Deviation(up_short_hemisp_std)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
    Deviation(down_short_diffuse_hemisp_std)
  • Downwelling longwave hemispheric irradiance, shaded pyrgeometer(down_long_hemisp_shaded)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)
  • Downwelling longwave hemispheric net infrared(down_long_netir)
  • Upwelling longwave hemispheric irradiance, pyrgeometer, maxima(up_long_hemisp_max)
  • 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Instantaneous downwelling pyrgeometer case thermistor temperature, shaded
    pyrgeometer(inst_down_long_shaded_case_temp)
  • Downwelling longwave hemispheric irradiance, shaded pyrgeometer, standard
    deviation(down_long_hemisp_shaded_std)
more
sgpsirsC1.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling longwave hemispheric irradiance, shaded pyrgeometer, standard
    deviation(down_long_hemisp_shaded_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • -180.0 - +180.0(alt)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • North Latitude(lat)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • lon(lon)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
    Deviation(down_short_hemisp_std)
  • Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_netir)
  • Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
  • Time offset from base_time(time_offset)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Instantaneous upwelling pyrgeometer case thermistor temperature, pyrgeometer(inst_up_long_case_temp)
  • Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
  • base time in epoch(base_time)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
    Standard Deviation(up_long_hemisp_std)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Battery voltage(vBatt)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
    Standard Deviation(up_short_hemisp_std)
  • Instantaneous downwelling pyrgeometer case thermistor temperature, shaded
    pyrgeometer(inst_down_long_shaded_case_temp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
    Deviation(down_short_diffuse_hemisp_std)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
  • Downwelling longwave hemispheric irradiance, shaded pyrgeometer(down_long_hemisp_shaded)
  • Downwelling longwave hemispheric net infrared(down_long_netir)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Upwelling longwave hemispheric irradiance, pyrgeometer, maxima(up_long_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
more
sgp15swfanalsirs1longC1.c1:
  • Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
  • Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
  • Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance
    (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)(sswfluxdn_clearskyfit)
  • Number of 1-minute Clear-sky Detections in the 15-minute Interval (Nclr)(nsamples_clearsky_detection)
  • Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
  • Distance from the Earth to the Sun (au)(sun_earth_distance)
  • Ratio of Measured minus Clear-sky Fit Estimated Downwelling Diffuse Shortwave
    Irradiance to Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance
    (di(difcloudeffect_normalized)
  • Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
  • Cosine of the Solar Zenith Angle Z (CosZ)(solar_cos_z)
  • -180.0 - +180.0(alt)
  • North Latitude(lat)
  • Time Offset from base_time_LST(time_offset_LST)
  • Fractional Sky Cover.(cloudfraction)
  • base time in epoch(base_time)
  • Number of 1-minute Cloud Fraction Estimates in the 15-minute Interval (Ncf)(nsamples_cloudfraction)
  • Time offset from base_time(time_offset)
  • Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
  • Average over the interval of the standard deviation of difratiodn_measured
    computed using a 3-5 sample window centered at each 1-min sample(difratiodn_measured_stdev)
  • site location(site)
  • lon(lon)
  • Measured Downwelling Summed Shortwave Irradiance
    (dirfluxdn_measured+diffluxdn_measured) (ssw)(sswfluxdn_measured)
  • Number of 1-minute Clear-sky Fit Downwelling Global Shortwave Irradiance
    Estimates in the 15-minute Interval (Ncsw)(nsamples_gswfluxdn_clearskyfit)
  • Measured Downwelling Global UVB Irradiance (uvb)(guvbdn_measured)
  • Measured Downwelling Diffuse Irradiance to Downwelling Global Irradiance Ratio
    (difr)(difratiodn_measured)
  • Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
  • Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
  • Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)(guvbdn_clearskyfit)
  • Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
  • Number of 1-minute Measured Downwelling Summed Shortwave Irradiances in the
    15-minute Interval (Nssw)(nsamples_sswfluxdn_measured)
  • Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
  • Beginning Time of File (LST)(base_time_LST)
  • Clear-sky Fit Estimated Downwelling Diffuse Irradiance to Downwelling Global
    Irradiance Ratio (cdifr)(difratiodn_clearskyfit)
  • Difference: sswfluxdn_clearskyfit - sswfluxdn_measured (sswfcg)(sswfluxdn_cloudeffect)
  • Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements
    (calb)(albedosw_clearskyfit)
more
sgpsirs20sC1.a0:
  • Instantaneous downwelling pyrgeometer dome thermistor resistance, shaded
    pyrgeometer(inst_down_long_shaded_dome_resist)
  • Instantaneous uncorrected downwelling shortwave diffuse, shaded pyranometer
    thermopile voltage(inst_diffuse)
  • lon(lon)
  • Instantaneous Upwelling Pyrgeometer Thermopile Pyrgeometer(inst_up_long_hemisp_tp)
  • -180.0 - +180.0(alt)
  • base time in epoch(base_time)
  • North Latitude(lat)
  • Instantaneous Downwelling Hemispheric Shortwave, Pyranometer Thermopile Voltage(inst_global)
  • Time offset from base_time(time_offset)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
  • Instantaneous downwelling pyrgeometer thermopile voltage, shaded pyrgeometer(inst_down_long_hemisp_shaded_tp)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous direct normal shortwave irradiance, pyrheliometer thermopile
    voltage(inst_direct_normal)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
more
sgpsirsC1.00:
  • (Raw data stream - documentation not supported)
more

Close this window