Data Quality Reports for Session: 144030 User: ql_data Completed: 07/31/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D110513.7SGP/MFRSR/E16 - Shadowband misalignmentsgpmfrsrE16.a0, sgpmfrsrE16.b1, sgpmfrsraod1michE16.c1, sgpmfrsrlangleyE16.c1,
sgpmfrsrlangplotE16.c1
D110613.1SGP/SIRS/E16 - Downwelling global SW incorrectsgpsirs20sE16.a0, sgpsirsE16.b1
D110805.1SGP/SIRS/E10 - MUX failuresgpsirs20sE10.a0, sgpsirsE10.b1


DQRID : D110513.7
Start DateStart TimeEnd DateEnd Time
01/27/2011190005/03/20111754
Subject:
SGP/MFRSR/E16 - Shadowband misalignment
DataStreams:sgpmfrsrE16.a0, sgpmfrsrE16.b1, sgpmfrsraod1michE16.c1, sgpmfrsrlangleyE16.c1,
sgpmfrsrlangplotE16.c1
Description:
There was a minor shading issue between 1745 UTC and 2230 UTC.  It is readily apparent in 
the April data.  Careful examination of the data record indicates the first noticeable 
instance of a problem is back on 20110127.  Though covered by this DQR, data from 20110127 
through the end of March should be OK for most users.
Measurements:sgpmfrsrE16.b1:
  • direct_diffuse_ratio_filter1
  • hemisp_broadband
  • direct_horizontal_broadband
  • direct_diffuse_ratio_filter3
  • direct_diffuse_ratio_filter2
  • direct_diffuse_ratio_filter5
  • direct_diffuse_ratio_filter4
  • direct_diffuse_ratio_filter6
  • diffuse_hemisp_broadband
  • direct_diffuse_ratio_broadband
  • Direct Normal Broadband Irradiance, broadband scale applied(direct_normal_broadband)
  • Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
  • Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
  • Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
  • Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
  • Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
  • Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
  • direct_horizontal_narrowband_filter2
  • direct_horizontal_narrowband_filter1
  • direct_horizontal_narrowband_filter4
  • direct_horizontal_narrowband_filter3
  • Radiation, shortwave, diffuse hemispheric irradiance, 940 nm wavelength(diffuse_hemisp_narrowband_filter6)
  • Radiation, shortwave, diffuse hemispheric irradiance, 870 nm wavelength(diffuse_hemisp_narrowband_filter5)
  • Radiation, shortwave, diffuse hemispheric irradiance, 673 nm wavelength(diffuse_hemisp_narrowband_filter4)
  • Radiation, shortwave, diffuse hemispheric irradiance, 615 nm wavelength(diffuse_hemisp_narrowband_filter3)
  • Radiation, shortwave, diffuse hemispheric irradiance, 500 nm wavelength(diffuse_hemisp_narrowband_filter2)
  • Radiation, shortwave, diffuse hemispheric irradiance, 415 nm wavelength(diffuse_hemisp_narrowband_filter1)
  • direct_horizontal_narrowband_filter5
  • direct_horizontal_narrowband_filter6
  • Radiation, shortwave, hemispheric irradiance, 415 nm wavelength(hemisp_narrowband_filter1)
  • Radiation, shortwave, hemispheric irradiance, 500 nm wavelength(hemisp_narrowband_filter2)
  • Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter5)
  • Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter6)
  • Radiation, shortwave, hemispheric irradiance, 615 nm wavelength(hemisp_narrowband_filter3)
  • Radiation, shortwave, hemispheric irradiance, 673 nm wavelength(hemisp_narrowband_filter4)
sgpmfrsrlangplotE16.c1:
  • michalsky_lnI_broadband
  • michalsky_lnI_filter3
  • michalsky_lnI_filter4
  • michalsky_lnI_filter1
  • michalsky_lnI_filter2
  • michalsky_lnI_filter5
  • michalsky_lnI_filter6
  • barnard_lnI_broadband
  • barnard_lnI_filter6
  • barnard_lnI_filter1
  • barnard_lnI_filter5
  • barnard_lnI_filter4
  • barnard_lnI_filter3
  • barnard_lnI_filter2
sgpmfrsrE16.a0:
  • diffuse_hemisp_narrowband_filter4_raw
  • Radiation, shortwave, hemispheric irradiance, 415 nm wavelength(hemisp_narrowband_filter1)
  • hemisp_narrowband_filter4_raw
  • Radiation, shortwave, hemispheric irradiance, 500 nm wavelength(hemisp_narrowband_filter2)
  • Radiation, shortwave, hemispheric irradiance, 615 nm wavelength(hemisp_narrowband_filter3)
  • Radiation, shortwave, hemispheric irradiance, 673 nm wavelength(hemisp_narrowband_filter4)
  • Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter5)
  • Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter6)
  • diffuse_hemisp_narrowband_filter3_raw
  • diffuse_hemisp_narrowband_filter6_raw
  • diffuse_hemisp_broadband
  • hemisp_narrowband_filter6_raw
  • diffuse_hemisp_narrowband_filter2_raw
  • hemisp_narrowband_filter3_raw
  • hemisp_broadband
  • diffuse_hemisp_narrowband_filter1_raw
  • direct_horizontal_narrowband_filter5
  • direct_horizontal_narrowband_filter6
  • Radiation, shortwave, diffuse hemispheric irradiance, 415 nm wavelength(diffuse_hemisp_narrowband_filter1)
  • Radiation, shortwave, diffuse hemispheric irradiance, 500 nm wavelength(diffuse_hemisp_narrowband_filter2)
  • Radiation, shortwave, diffuse hemispheric irradiance, 615 nm wavelength(diffuse_hemisp_narrowband_filter3)
  • Radiation, shortwave, diffuse hemispheric irradiance, 673 nm wavelength(diffuse_hemisp_narrowband_filter4)
  • Radiation, shortwave, diffuse hemispheric irradiance, 870 nm wavelength(diffuse_hemisp_narrowband_filter5)
  • Radiation, shortwave, diffuse hemispheric irradiance, 940 nm wavelength(diffuse_hemisp_narrowband_filter6)
  • direct_horizontal_narrowband_filter2
  • direct_horizontal_narrowband_filter1
  • direct_horizontal_narrowband_filter4
  • direct_horizontal_narrowband_filter3
  • diffuse_hemisp_broadband_raw
  • direct_horizontal_broadband
  • hemisp_broadband_raw
  • hemisp_narrowband_filter1_raw
  • diffuse_hemisp_narrowband_filter5_raw
  • hemisp_narrowband_filter5_raw
  • hemisp_narrowband_filter2_raw
sgpmfrsrlangleyE16.c1:
  • barnard_optical_depth_filter6
  • barnard_optical_depth_filter4
  • barnard_optical_depth_filter5
  • barnard_optical_depth_filter2
  • barnard_optical_depth_filter3
  • barnard_optical_depth_filter1
  • barnard_angstrom_exponent
  • barnard_optical_depth_broadband
  • michalsky_optical_depth_filter6
  • michalsky_optical_depth_filter5
  • michalsky_optical_depth_filter4
  • michalsky_optical_depth_filter3
  • michalsky_optical_depth_filter2
  • michalsky_optical_depth_filter1
  • michalsky_angstrom_exponent
  • michalsky_optical_depth_broadband
sgpmfrsraod1michE16.c1:
  • hemisp_broadband_raw
  • diffuse_hemisp_narrowband_filter2_raw
  • Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
  • Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
  • Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
  • Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
  • hemisp_broadband
  • Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
  • diffuse_hemisp_narrowband_filter4_raw
  • Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
  • diffuse_hemisp_narrowband_filter5_raw
  • direct_diffuse_ratio_broadband
  • diffuse_hemisp_narrowband_filter1_raw
  • hemisp_narrowband_filter4_raw
  • Aerosol optical depth filter 1(aerosol_optical_depth_filter1)
  • diffuse_hemisp_narrowband_filter6_raw
  • Aerosol optical depth filter 2(aerosol_optical_depth_filter2)
  • Aerosol optical depth filter 3(aerosol_optical_depth_filter3)
  • Aerosol optical depth filter 4(aerosol_optical_depth_filter4)
  • Aerosol optical depth filter 5(aerosol_optical_depth_filter5)
  • hemisp_narrowband_filter5_raw
  • hemisp_narrowband_filter6_raw
  • hemisp_narrowband_filter3_raw
  • Radiation, shortwave, diffuse hemispheric irradiance, 615 nm wavelength(diffuse_hemisp_narrowband_filter3)
  • Radiation, shortwave, diffuse hemispheric irradiance, 673 nm wavelength(diffuse_hemisp_narrowband_filter4)
  • Radiation, shortwave, diffuse hemispheric irradiance, 415 nm wavelength(diffuse_hemisp_narrowband_filter1)
  • Radiation, shortwave, diffuse hemispheric irradiance, 500 nm wavelength(diffuse_hemisp_narrowband_filter2)
  • direct_horizontal_narrowband_filter1
  • direct_horizontal_narrowband_filter3
  • direct_horizontal_narrowband_filter2
  • direct_horizontal_narrowband_filter5
  • direct_horizontal_narrowband_filter4
  • Radiation, shortwave, diffuse hemispheric irradiance, 870 nm wavelength(diffuse_hemisp_narrowband_filter5)
  • direct_horizontal_narrowband_filter6
  • Radiation, shortwave, diffuse hemispheric irradiance, 940 nm wavelength(diffuse_hemisp_narrowband_filter6)
  • angstrom_exponent
  • Direct Normal Broadband Irradiance, broadband scale applied(direct_normal_broadband)
  • hemisp_narrowband_filter2_raw
  • diffuse_hemisp_broadband
  • direct_horizontal_broadband
  • Total optical depth direct narrowband filter 3(total_optical_depth_filter3)
  • Total optical depth direct narrowband filter 2(total_optical_depth_filter2)
  • Total optical depth direct narrowband filter 1(total_optical_depth_filter1)
  • Total optical depth direct narrowband filter 5(total_optical_depth_filter5)
  • Total optical depth direct narrowband filter 4(total_optical_depth_filter4)
  • Radiation, shortwave, hemispheric irradiance, 673 nm wavelength(hemisp_narrowband_filter4)
  • Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter5)
  • Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter6)
  • diffuse_hemisp_narrowband_filter3_raw
  • Radiation, shortwave, hemispheric irradiance, 415 nm wavelength(hemisp_narrowband_filter1)
  • Radiation, shortwave, hemispheric irradiance, 500 nm wavelength(hemisp_narrowband_filter2)
  • Radiation, shortwave, hemispheric irradiance, 615 nm wavelength(hemisp_narrowband_filter3)
  • hemisp_narrowband_filter1_raw
  • direct_diffuse_ratio_filter6
  • direct_diffuse_ratio_filter5
  • direct_diffuse_ratio_filter2
  • Io_filter4
  • Io_filter3
  • direct_diffuse_ratio_filter1
  • direct_diffuse_ratio_filter4
  • direct_diffuse_ratio_filter3
  • Io_filter5
  • Io_filter2
  • diffuse_hemisp_broadband_raw
  • Io_filter1

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DQRID : D110613.1
Start DateStart TimeEnd DateEnd Time
02/05/2011153203/07/20111855
Subject:
SGP/SIRS/E16 - Downwelling global SW incorrect
DataStreams:sgpsirs20sE16.a0, sgpsirsE16.b1
Description:
The down_short_hemisp (PSP instrument) values exhibit a large offset due to ventilator fan 
failure and induced instrument heating.  This offset cannot be corrected.  

Users can derive an estimate of global shortwave values with the following formula:
global = direct * cos(zenith angle) + diffuse
Measurements:sgpsirsE16.b1:
  • 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)
sgpsirs20sE16.a0:
  • inst_global

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DQRID : D110805.1
Start DateStart TimeEnd DateEnd Time
07/18/2010093306/22/20111713
Subject:
SGP/SIRS/E10 - MUX failure
DataStreams:sgpsirs20sE10.a0, sgpsirsE10.b1
Description:
Starting on 7/18/2010 there were periodic large dropouts in the downwelling shortwave 
hemipsheric data eventually leading to failures in all other SIRS data throughout the 
specified time range.   Subsequent and extensive corrective maintenance was ongoing until 
6/22/2011 when all measurement problems were resolved.  

Due to the extensive data disruption during this time range all data from this station is 
suspect.  

For shortwave datastreams,however, data review reveals that the VAP qcrad1longE10.c1 and 
s1 datastreams have accurately flagged and removed suspect shortwave data and provides the 
user the most accurate values available for short_direct_normal, down_short_diffuse and 
down_short_hemisp. 
The user is referred to the best estimate data in the s1 datastream.

Longwave data after 8/18/2010 1800GMT is known to be biased from 0 to +20 W/m2. The user 
is advised to not use the down_long_hemisp_shaded and up_long_hemisp datastreams in any 
form from 8/18/2010 to 6/22/2011.  The sgpqcradlong1E10 datastreams do not effectively flag 
potentially bad data.
Measurements:sgpsirsE10.b1:
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • inst_up_long_dome_temp
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • down_long_hemisp_shaded_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • short_direct_normal_std
  • up_short_hemisp_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • down_short_hemisp_std
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • down_short_diffuse_hemisp_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • up_long_hemisp_std
  • inst_down_long_shaded_dome_temp
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • inst_up_long_case_temp
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • inst_down_long_shaded_case_temp
sgpsirs20sE10.a0:
  • inst_up_long_dome_resist
  • inst_down_long_shaded_case_resist
  • inst_up_long_hemisp_tp
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_up_long_case_resist
  • inst_diffuse
  • inst_up_short_hemisp
  • inst_global
  • inst_down_long_shaded_dome_resist
  • inst_direct_normal

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END OF DATA