SGP/EBBR/E18 - Reprocess: E18 EBBR Net Radiometer Calibration

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)

• Bowen ratio(bowen_ratio)
• -180.0 - +180.0(alt)
• AEM position indicator 0 to 15 mins(home_signal_15)
• Surface soil heat flux 5(surface_soil_heat_flux_5)
• Surface soil heat flux 4(surface_soil_heat_flux_4)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Surface soil heat flux 1(surface_soil_heat_flux_1)
• Bottom vapor pressure(vapor_pressure_bottom)
• Surface soil heat flux 3(surface_soil_heat_flux_3)
• Surface soil heat flux 2(surface_soil_heat_flux_2)
• Wind direction vector mean(wdir_vec_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Surface soil heat flux, average of fluxes 1-5(surface_soil_heat_flux_avg)
• base time in epoch(base_time)
• Reference temperature in enclosure(temp_reference)
• Top vapor pressure(vapor_pressure_top)
• North Latitude(lat)
• Soil heat flow 5, corrected for soil moisture(corr_soil_heat_flow_5)
• Soil heat flow 4, corrected for soil moisture(corr_soil_heat_flow_4)
• Soil temperature 1(soil_temp_1)
• Soil temperature mean 3(soil_temp_3)
• Net radiation(net_radiation)
• Soil temperature 2(soil_temp_2)
• Half hour averaged soil temperature 5(soil_temp_5)
• Top T/RH sensor temperature(temp_trh_top)
• Half hour averaged soil temperature 4(soil_temp_4)
• Soil moisture 5, gravimetric(soil_moisture_5)
• Soil moisture 4, gravimetric(soil_moisture_4)
• Bottom T/RH sensor temperature(temp_trh_bottom)
• Soil heat flow 3, corrected for soil moisture(corr_soil_heat_flow_3)
• Soil heat flow 2, corrected for soil moisture(corr_soil_heat_flow_2)
• Soil heat flow 1, corrected for soil moisture(corr_soil_heat_flow_1)
• Change in energy storage 5, 0-5 cm soil layer(energy_storage_change_5)
• Wind speed arithmetic mean(wspd_arith_mean)
• Time offset from base_time(time_offset)
• Change in energy storage 1, 0-5 cm soil layer(energy_storage_change_1)
• Change in energy storage 2, 0-5 cm soil layer(energy_storage_change_2)
• Change in energy storage 3, 0-5 cm soil layer(energy_storage_change_3)
• Bottom air temperature(temp_air_bottom)
• Change in energy storage 4, 0-5 cm soil layer(energy_storage_change_4)
• Soil moisture 1, gravimetric(soil_moisture_1)
• Soil moisture 3, gravimetric(soil_moisture_3)
• Soil moisture 2, gravimetric(soil_moisture_2)
• Soil heat flow 5(soil_heat_flow_5)
• Wind speed vector mean(wspd_vec_mean)
• lon(lon)
• Soil heat flow 1(soil_heat_flow_1)
• Soil heat flow 2(soil_heat_flow_2)
• Soil heat flow 3(soil_heat_flow_3)
• Soil heat flow 4(soil_heat_flow_4)
• Surface latent heat flux(latent_heat_flux)
• AEM position indicator 15 to 30 mins(home_signal_30)
• Top relative humidity (fractional)(rh_top_fraction)
• Soil heat capacity 1(soil_heat_capacity_1)
• Soil heat capacity 2(soil_heat_capacity_2)
• Surface sensible heat flux(sensible_heat_flux)
• Soil heat capacity 3(soil_heat_capacity_3)
• Top air temperature(temp_air_top)
• Atmospheric pressure(atmos_pressure)
• Soil heat capacity 4(soil_heat_capacity_4)
• Soil heat capacity 5(soil_heat_capacity_5)

• Wind direction vector mean standard deviation(wdir_vec_std)
• Time offset from base_time(time_offset)
• Top relative humidity (fractional)(rh_top_fraction)
• Wind direction vector mean(wdir_vec_mean)
• North Latitude(lat)
• Bottom vapor pressure(vapor_pressure_bottom)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Bottom T/RH sensor temperature(temp_trh_bottom)
• Atmospheric pressure(atmos_pressure)
• Top T/RH sensor temperature(temp_trh_top)
• -180.0 - +180.0(alt)
• Bottom air temperature(temp_air_bottom)
• base time in epoch(base_time)
• Wind speed arithmetic mean(wspd_arith_mean)
• Top vapor pressure(vapor_pressure_top)
• Net radiation(net_radiation)
• Top air temperature(temp_air_top)
• AEM position indicator(home_signal)
• Reference temperature in enclosure(temp_reference)
• lon(lon)
• Wind speed vector mean(wspd_vec_mean)