Data Quality Report for Order ID: 187470
User ID: dumask1    Date completed: 2017-08-29
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D140923.2 NSA/SURFSPECALB/C1 - Reprocessed and Corrected: Value Added Product error nsasurfspecalb1mlawerC1.s1 Note
D130725.1 NSA/SURFSPECALB/C1 - Data processing problem nsasurfspecalb1mlawerC1.c1 Note
 
DQR ID: D140923.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
1998-04-07 00:00:00 2016-06-10 23:59:59 Note
Subject: NSA/SURFSPECALB/C1 - Reprocessed and Corrected: Value Added Product error
Affected Datastreams: nsasurfspecalb1mlawerC1.s1
Description DATA REPROCESSED and CORRECTED: These data were reprocessed to fix the minor problem caused by the configuration. The configuration files needed to perform the transformations correctly were not released with the updated software. As a result the data is not as accurate as it could be because the alignment of the averaged data was assumed to be center of the averaging bin, but some instances exist where the averaging alignment was not at the center of the bin. This data product averages the input over a five minute period and then an additional transformation is applied to a longer time interval later in the process. The impact on this data is minor and expected to be under the uncertainty associated with the methods applied. This processing difference should not affect the use of the data. The data were archived in August 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::surfspecalb/fsite::nsa/ffac::nsa.C1 ORIGINAL DQR CATEGORY: Transparent (Does not affect quality) REPROCESSED and CORRECTED DATA ARCHIVED:2016-08 REPROCESS IDENTIFICATION NUMBER: RID 1234 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- The configuration files needed to perform the transformations correctly were not released with the updated software. As a result the data is not as accurate as it could be because the alignment of the averaged data was assumed to be center of the averaging bin, but some instances exist where the averaging alignment was not at the center of the bin. This data product averages the input over a five minute period and then an additional transformation is applied to a longer time interval later in the process. The impact on this data is minor and expected to be under the uncertainty associated with the methods applied. This processing difference should not affect the use of the data.
Measurements
  • surface_type_10m_tower (Derived surface type under the 10 tower)
  • estimated_spectral_albedo_10m (Spectral albedo estimated from mfr albedos using surface type and Mlawer algorithm at 10m tower)
  • be_hemisp_broadband_status_mfrsr (Estimation status flag for best estimate best measured hemispheric broadband irradiance from mfrsrC1)
  • broadband_from_spectral_albedo_10m (Broadband albedo at 10m tower estimated from integrating spectral albedos weighted by surface flux calculated from CHARTS)
 
DQR ID: D130725.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
1998-04-07 00:00:00 2011-11-25 00:00:00 Note
Subject: NSA/SURFSPECALB/C1 - Data processing problem
Affected Datastreams: nsasurfspecalb1mlawerC1.c1
Description An intermediate process, surfspecalb_transform, of the surfspecalb1mlawer VAP incorrectly treated its input datastream (intermediate datastream surfspecalbmfrsr.c0) as it had a bin alignment equal to the end of the bin, but it was actually the middle of the bin. The result was a shifting of the values with respect to time 10 seconds to the left. The impact on the primary measurement, spectral albedo, was considered to be less than the uncertainty of that measurement. The problem occurs for all measurements dimensioned by time.
Measurements
  • direct_normal_broadband_mfrsrC1 (Direct Normal Broadband Irradiance for mfrsrC1)
  • up_hemisp_narrowband_mfr10mC1 (10 meter Narrowband Upwelling Hemispheric Irradiance)
  • hemisp_broadband_mfrsrC1 (Hemispheric Broadband Irradiance for mfrsrC1, offset and cosine corrected, broadband scale factor applied)
  • surface_albedo_mfr_broadband_10m (Broadband surface albedo at the 10m tower)
  • base_time (Base time in Epoch)
  • hemisp_broadband_mfrsr (Best measured hemispheric broadband irradiance from mfrsrC1)
  • direct_normal_narrowband_mfrsrC1 (Narrowband Direct Normal Irradiance for mfrsrC1)
  • hemisp_broadband_facility_mfrsr (Hemispheric broadband irradiance used in calculating be_hemisp_broadband_mfrsr and surface_albedo_mfr_broadband_10m)
  • hemisp_narrowband_mfrsr (Best measured hemispheric narrowband irradiance from mfrsrC1)
  • diffuse_hemisp_narrowband_mfrsrC1 (Narrowband Diffuse Hemispheric Irradiance for mfrsrC1)
  • be_surface_albedo_psp_broadband_10m (PSP broadband surface albedo at the 10m tower (up_short_hemisp_qcrad1longC1/down_short_hemisp_qcrad1longC1))
  • cosine_solar_zenith_angle_mfr10mC1 (10 meter Cosine Solar Zenith Angle)
  • be_up_hemisp_broadband_mfr10mC1 (Best estimate 10 meter broadband upwelling hemispheric irradiance)
  • hemisp_narrowband_mfrsrC1 (Narrowband Hemispheric Irradiance for mfrsrC1)
  • time_offset (Time offset from base_time)
  • estimated_spectral_albedo_10m (Spectral albedo estimated from mfr albedos using surface type and Mlawer algorithm at 10m tower)
  • surface_albedo_mfr_narrowband_10m (Narrowband surface albedo at the 10m tower)
  • be_up_hemisp_broadband_status_mfr10mC1 (Estimation status flag for Best estimate 10 meter broadband upwelling hemispheric irradiance)
  • diffuse_hemisp_broadband_mfrsrC1 (Diffuse Hemispheric Broadband Irradiance for mfrsrC1)
  • time (Time offset from midnight)
  • be_surface_albedo_mfr_narrowband_10m_status (Estimation status flag for Best estimate Narrowband surface albedo at the 10m tower)
  • be_up_hemisp_narrowband_status_mfr10mC1 (Estimation status flag for Best estimate 10 meter narrowband upwelling hemispheric irradiance)
  • be_hemisp_narrowband_status_mfrsr (Estimation status flag for best estimate best measured hemispheric narrowband irradiance from mfrsrC1)
  • be_hemisp_broadband_mfrsr (Best estimate Best measured hemispheric broadband irradiance from mfrsrC1)
  • hemisp_narrowband_facility_mfrsr (Hemispheric narrowband irradiance used in calculating be_hemisp_narrowband_mfrsr,surface_albedo_mfr_narrowband_10m, and surface_albedo_mfr_narrowband_10m)
  • be_hemisp_broadband_status_mfrsr (Estimation status flag for best estimate best measured hemispheric broadband irradiance from mfrsrC1)
  • be_surface_albedo_mfr_broadband_10m_status (Estimation status flag for Best estimate Broadband surface albedo at the 10m tower)
  • be_surface_albedo_mfr_narrowband_10m (Best estimate Narrowband surface albedo at the 10m tower)
  • be_surface_albedo_mfr_broadband_10m (Best estimate Broadband surface albedo at the 10m tower)
  • up_hemisp_broadband_mfr10mC1 (10 meter Broadband Upwelling Hemispheric Irradiance)
  • be_hemisp_narrowband_mfrsr (Best estimate Best measured hemispheric narrowband irradiance from mfrsrC1)
  • be_up_hemisp_narrowband_mfr10mC1 (Best estimate 10 meter narrowband upwelling hemispheric irradiance)
  • broadband_from_spectral_albedo_10m (Broadband albedo at 10m tower estimated from integrating spectral albedos weighted by surface flux calculated from CHARTS)