DQRID : D980623.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/10/1997200006/18/19981420Does not affect quality
more
Subject:
SGP/EBBR/E18 - Reprocessed and Corrected: E18 EBBR Net Radiometer Calibration
DataStreams:sgp5ebbrE18.b1, sgp30ebbrE18.b1
Description:
DATA REPROCESSED and CORRECTED: 

Incorrect calibration for the net radiometer was present upon startup of a newly installed 
EBBR, resulting in bad 5 and 30 minute q values during this time period. Simple 
multipliers were applied to correct data, and the sensible and latent heat fluxes were 
recalculated.

The data were archived in January 2017. Please retrieve the reprocessed data for use in 
your analysis. 

ORIGINAL DQR CATEGORY: Yellow (Suspect)

REPROCESSED and CORRECTED DATA ARCHIVED:2017-01

REPROCESS IDENTIFICATION NUMBER: RID 227

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--- ORIGINAL DQR DESCRIPTION ---
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When the CR10 program was loaded in the storage module of the newly 
installed EBBR unit at E18 on 10 September 1997, an incorrect 
calibration for the net radiometer was present.  The incorrect calibration
had apparently been entered into the storage module by the vendor before
the unit was shipped.  The .DOC file showed the correct calibration; 
therefore, we did not suspect a problem until comparisons with 
radiometers at other sites nearby were performed.  The program with the 
correct calibration was entered on 18 June 1998.  The 15 minute mv_q 
values were not affected.  The 5 and 30 minute q values during the period
above need to be corrected; multiply positive q values by 0.684, multiply 
negative values by 0.811; Sensible (h) and Latent Heat (e) fluxes for the
period need to be recalculated with the equations below.

e = -(q + ave_shf)/(1 + bowen)

h = -(e + ave_shf + q)
Suggestions: 
Measurements:sgp30ebbrE18.b1:
  • bowen_ratio
  • alt
  • home_signal_15
  • surface_soil_heat_flux_5
  • surface_soil_heat_flux_4
  • rh_bottom_fraction
  • surface_soil_heat_flux_1
  • vapor_pressure_bottom
  • surface_soil_heat_flux_3
  • surface_soil_heat_flux_2
  • wdir_vec_mean
  • wdir_vec_std
  • surface_soil_heat_flux_avg
  • base_time
  • temp_reference
  • vapor_pressure_top
  • lat
  • corr_soil_heat_flow_5
  • corr_soil_heat_flow_4
  • soil_temp_1
  • soil_temp_3
  • net_radiation
  • soil_temp_2
  • soil_temp_5
  • temp_trh_top
  • soil_temp_4
  • soil_moisture_5
  • soil_moisture_4
  • temp_trh_bottom
  • corr_soil_heat_flow_3
  • corr_soil_heat_flow_2
  • corr_soil_heat_flow_1
  • energy_storage_change_5
  • wspd_arith_mean
  • time_offset
  • energy_storage_change_1
  • energy_storage_change_2
  • energy_storage_change_3
  • temp_air_bottom
  • energy_storage_change_4
  • soil_moisture_1
  • soil_moisture_3
  • soil_moisture_2
  • soil_heat_flow_5
  • wspd_vec_mean
  • lon
  • soil_heat_flow_1
  • soil_heat_flow_2
  • soil_heat_flow_3
  • soil_heat_flow_4
  • latent_heat_flux
  • home_signal_30
  • rh_top_fraction
  • soil_heat_capacity_1
  • soil_heat_capacity_2
  • sensible_heat_flux
  • soil_heat_capacity_3
  • temp_air_top
  • atmos_pressure
  • soil_heat_capacity_4
  • soil_heat_capacity_5
more
sgp5ebbrE18.b1:
  • wdir_vec_std
  • time_offset
  • rh_top_fraction
  • wdir_vec_mean
  • lat
  • vapor_pressure_bottom
  • rh_bottom_fraction
  • temp_trh_bottom
  • atmos_pressure
  • temp_trh_top
  • alt
  • temp_air_bottom
  • base_time
  • wspd_arith_mean
  • vapor_pressure_top
  • net_radiation
  • temp_air_top
  • home_signal
  • temp_reference
  • lon
  • wspd_vec_mean
more

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