DQRID : D050121.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/22/2004170008/28/20081500Suspect
more
Subject:
SGP/MFRSR/E7 - Low head temperature
DataStreams:sgpmfrsrE7.b1, sgpmfrsrlangplotE7.c1, sgpmfrsrE7.a0, sgpmfrsrlangleyE7.c1
Description:
A hardware change occurred on 20040922.  Following this change, the head temperature was 
not being well regulated.  The temperature should stay around 40 deg C, but often, 
especially in winter, values less than 35 deg C were observed.

There was never any obvious problems in the irradiance data, but that is not unexpected as 
any issues would be subtle.

It is likely the new Langley style calibrations being employed in the c1 level data will 
account for the lower head temperatures.  Even with this expectation, however, we are 
including c1 streams in this DQR so users are aware of potential issues.
Suggestions: 
Measurements:sgpmfrsrE7.a0:
  • hemisp_narrowband_filter1_raw
  • diffuse_hemisp_narrowband_filter3_raw
  • offset_broadband
  • logger_temp
  • time_offset
  • hemisp_broadband_raw
  • diffuse_hemisp_narrowband_filter6_raw
  • hemisp_broadband
  • hemisp_narrowband_filter4_raw
  • direct_horizontal_broadband
  • hemisp_narrowband_filter2_raw
  • hemisp_narrowband_filter2
  • hemisp_narrowband_filter1
  • diffuse_hemisp_narrowband_filter6
  • diffuse_hemisp_narrowband_filter5
  • diffuse_hemisp_narrowband_filter4
  • diffuse_hemisp_narrowband_filter3
  • diffuse_hemisp_narrowband_filter2
  • diffuse_hemisp_narrowband_filter1
  • hemisp_narrowband_filter6
  • diffuse_hemisp_broadband_raw
  • hemisp_narrowband_filter5
  • hemisp_narrowband_filter4
  • hemisp_narrowband_filter3
  • offset_filter3
  • offset_filter4
  • offset_filter5
  • offset_filter6
  • offset_filter1
  • offset_filter2
  • lat
  • diffuse_hemisp_narrowband_filter4_raw
  • alt
  • base_time
  • lon
  • hemisp_narrowband_filter3_raw
  • diffuse_hemisp_narrowband_filter5_raw
  • head_temp2
  • hemisp_narrowband_filter6_raw
  • alltime_hemisp_broadband
  • diffuse_hemisp_narrowband_filter1_raw
  • head_temp
  • direct_horizontal_narrowband_filter5
  • direct_horizontal_narrowband_filter6
  • diffuse_hemisp_narrowband_filter2_raw
  • alltime_hemisp_narrowband_filter5
  • alltime_hemisp_narrowband_filter4
  • alltime_hemisp_narrowband_filter6
  • alltime_hemisp_narrowband_filter1
  • alltime_hemisp_narrowband_filter3
  • alltime_hemisp_narrowband_filter2
  • time
  • diffuse_hemisp_broadband
  • logger_volt
  • hemisp_narrowband_filter5_raw
  • direct_horizontal_narrowband_filter1
  • direct_horizontal_narrowband_filter2
  • direct_horizontal_narrowband_filter3
  • direct_horizontal_narrowband_filter4
more
sgpmfrsrE7.b1:
  • alltime_hemisp_broadband
  • time
  • cosine_correction_we_filter1
  • direct_horizontal_narrowband_filter5
  • cosine_correction_we_filter2
  • direct_horizontal_narrowband_filter6
  • cosine_correction_we_filter3
  • cosine_correction_we_filter4
  • cosine_correction_we_filter5
  • cosine_correction_we_filter6
  • logger_volt
  • lat
  • alt
  • computed_cosine_correction_filter3
  • computed_cosine_correction_filter2
  • computed_cosine_correction_filter1
  • computed_cosine_correction_filter6
  • computed_cosine_correction_filter5
  • computed_cosine_correction_filter4
  • nominal_calibration_factor_filter1
  • nominal_calibration_factor_filter2
  • nominal_calibration_factor_filter3
  • nominal_calibration_factor_filter4
  • nominal_calibration_factor_filter5
  • nominal_calibration_factor_filter6
  • direct_horizontal_narrowband_filter1
  • direct_horizontal_narrowband_filter2
  • direct_horizontal_narrowband_filter3
  • direct_horizontal_narrowband_filter4
  • direct_diffuse_ratio_filter1
  • logger_temp
  • time_offset
  • computed_cosine_correction_broadband
  • direct_horizontal_broadband
  • alltime_hemisp_narrowband_filter1
  • alltime_hemisp_narrowband_filter3
  • alltime_hemisp_narrowband_filter2
  • alltime_hemisp_narrowband_filter5
  • alltime_hemisp_narrowband_filter4
  • alltime_hemisp_narrowband_filter6
  • airmass
  • direct_diffuse_ratio_broadband
  • diffuse_hemisp_broadband
  • hemisp_broadband
  • hemisp_narrowband_filter4
  • hemisp_narrowband_filter3
  • hemisp_narrowband_filter6
  • hemisp_narrowband_filter5
  • wavelength_filter5
  • wavelength_filter6
  • wavelength_filter3
  • wavelength_filter4
  • wavelength_filter1
  • wavelength_filter2
  • diffuse_hemisp_narrowband_filter6
  • diffuse_hemisp_narrowband_filter5
  • diffuse_hemisp_narrowband_filter4
  • diffuse_hemisp_narrowband_filter3
  • diffuse_hemisp_narrowband_filter2
  • diffuse_hemisp_narrowband_filter1
  • hemisp_narrowband_filter2
  • hemisp_narrowband_filter1
  • cosine_correction_sn_broadband
  • cosine_correction_sn_filter6
  • cosine_correction_we_broadband
  • cosine_correction_sn_filter4
  • cosine_correction_sn_filter5
  • lon
  • cosine_solar_zenith_angle
  • nominal_calibration_factor_broadband
  • azimuth_angle
  • diffuse_correction_filter5
  • diffuse_correction_filter6
  • diffuse_correction_filter3
  • diffuse_correction_filter4
  • diffuse_correction_filter1
  • diffuse_correction_filter2
  • offset_filter1
  • offset_filter2
  • offset_filter3
  • offset_filter4
  • direct_normal_broadband
  • offset_filter5
  • offset_filter6
  • head_temp
  • diffuse_correction_broadband
  • cosine_correction_sn_filter2
  • cosine_correction_sn_filter3
  • cosine_correction_sn_filter1
  • direct_normal_narrowband_filter3
  • direct_normal_narrowband_filter2
  • direct_normal_narrowband_filter1
  • direct_normal_narrowband_filter6
  • direct_normal_narrowband_filter5
  • solar_zenith_angle
  • direct_normal_narrowband_filter4
  • base_time
  • normalized_transmittance_filter1
  • normalized_transmittance_filter2
  • normalized_transmittance_filter3
  • normalized_transmittance_filter4
  • normalized_transmittance_filter5
  • normalized_transmittance_filter6
  • offset_broadband
  • elevation_angle
  • head_temp2
  • direct_diffuse_ratio_filter6
  • direct_diffuse_ratio_filter5
  • direct_diffuse_ratio_filter4
  • direct_diffuse_ratio_filter3
  • direct_diffuse_ratio_filter2
  • bench_angle
more
sgpmfrsrlangplotE7.c1:
  • time_offset
  • lon
  • barnard_airmass
  • michalsky_rejected_filter3
  • michalsky_rejected_filter2
  • michalsky_rejected_filter5
  • michalsky_rejected_filter4
  • michalsky_rejected_filter6
  • michalsky_rejected_filter1
  • base_time
  • michalsky_airmass
  • barnard_lnI_filter2
  • barnard_lnI_filter3
  • barnard_lnI_filter1
  • barnard_rejected_filter1
  • barnard_rejected_filter2
  • barnard_rejected_filter3
  • barnard_rejected_filter4
  • barnard_rejected_filter5
  • barnard_rejected_filter6
  • barnard_lnI_filter6
  • barnard_lnI_filter4
  • barnard_lnI_filter5
  • michalsky_rejected_broadband
  • michalsky_lnI_broadband
  • barnard_lnI_broadband
  • michalsky_lnI_filter3
  • michalsky_lnI_filter4
  • michalsky_lnI_filter5
  • michalsky_lnI_filter6
  • alt
  • michalsky_lnI_filter1
  • michalsky_lnI_filter2
  • lat
  • barnard_rejected_broadband
more
sgpmfrsrlangleyE7.c1:
  • michalsky_good_fraction_filter1
  • michalsky_good_fraction_filter2
  • michalsky_good_fraction_filter3
  • michalsky_good_fraction_filter4
  • michalsky_good_fraction_filter5
  • michalsky_good_fraction_filter6
  • barnard_number_points_filter5
  • barnard_number_points_filter6
  • time_offset
  • barnard_number_points_filter3
  • barnard_number_points_filter4
  • barnard_number_points_filter1
  • barnard_number_points_filter2
  • barnard_good_fraction_broadband
  • michalsky_optical_depth_filter2
  • michalsky_optical_depth_filter1
  • michalsky_optical_depth_filter4
  • michalsky_optical_depth_filter3
  • michalsky_optical_depth_filter6
  • michalsky_optical_depth_filter5
  • barnard_number_points_broadband
  • michalsky_badflag_broadband
  • barnard_angstrom_exponent
  • barnard_good_fraction_filter5
  • barnard_good_fraction_filter4
  • barnard_good_fraction_filter3
  • barnard_good_fraction_filter2
  • barnard_good_fraction_filter6
  • michalsky_number_points_filter1
  • michalsky_number_points_filter2
  • michalsky_number_points_filter3
  • michalsky_number_points_filter4
  • michalsky_number_points_filter5
  • michalsky_number_points_filter6
  • barnard_error_slope_filter1
  • michalsky_standard_deviation_broadband
  • barnard_error_fit_filter6
  • barnard_error_fit_filter5
  • barnard_error_fit_filter4
  • barnard_error_fit_filter3
  • barnard_error_fit_filter2
  • barnard_error_fit_filter1
  • barnard_good_fraction_filter1
  • michalsky_badflag_filter6
  • michalsky_badflag_filter5
  • michalsky_badflag_filter4
  • michalsky_badflag_filter3
  • michalsky_badflag_filter2
  • michalsky_badflag_filter1
  • barnard_badflag_broadband
  • michalsky_standard_deviation_filter6
  • michalsky_standard_deviation_filter1
  • michalsky_standard_deviation_filter2
  • michalsky_standard_deviation_filter3
  • base_time
  • michalsky_standard_deviation_filter4
  • michalsky_standard_deviation_filter5
  • michalsky_solar_constant_filter6
  • michalsky_solar_constant_filter5
  • michalsky_solar_constant_filter4
  • michalsky_solar_constant_filter3
  • lat
  • barnard_error_slope_broadband
  • michalsky_optical_depth_broadband
  • michalsky_good_fraction_broadband
  • michalsky_solar_constant_filter2
  • michalsky_solar_constant_filter1
  • michalsky_number_points_broadband
  • barnard_optical_depth_filter1
  • barnard_optical_depth_filter6
  • barnard_optical_depth_filter5
  • barnard_optical_depth_filter4
  • barnard_optical_depth_filter3
  • barnard_optical_depth_filter2
  • lon
  • barnard_error_slope_filter2
  • barnard_error_slope_filter3
  • barnard_error_slope_filter4
  • barnard_error_slope_filter5
  • barnard_error_slope_filter6
  • barnard_solar_constant_sdist_broadband
  • barnard_solar_constant_sdist_filter2
  • barnard_solar_constant_sdist_filter3
  • barnard_solar_constant_sdist_filter1
  • michalsky_solar_constant_broadband
  • barnard_solar_constant_sdist_filter6
  • barnard_solar_constant_sdist_filter4
  • barnard_solar_constant_sdist_filter5
  • barnard_badflag_filter2
  • barnard_badflag_filter1
  • barnard_badflag_filter4
  • barnard_badflag_filter3
  • barnard_optical_depth_broadband
  • michalsky_solar_constant_sdist_filter1
  • michalsky_solar_constant_sdist_filter2
  • michalsky_solar_constant_sdist_filter3
  • michalsky_solar_constant_sdist_filter4
  • michalsky_solar_constant_sdist_filter5
  • michalsky_solar_constant_sdist_filter6
  • barnard_error_fit_broadband
  • michalsky_solar_constant_sdist_broadband
  • michalsky_angstrom_exponent
  • barnard_badflag_filter6
  • barnard_badflag_filter5
  • alt
more

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