SGP/EBBR/E2 - Missing data

Data are missing and unrecoverable

• rh_right_mv
• Wind speed arithmetic mean(wspd_arith_mean)
• soil_temp_1_rr
• lat
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• rh_left_mv
• time_offset
• soil_heat_flow_4_mv
• lon
• soil_heat_flow_3_mv
• temp_reference_rr
• soil_moisture_5_rr
• soil_moisture_1_rr
• soil_temp_5_rr
• base_time
• soil_temp_2_rr
• temp_trh_left_rr
• home_signal
• atmos_pressure_mv
• soil_moisture_2_rr
• temp_air_left
• net_radiation_mv
• soil_heat_flow_1_mv
• soil_temp_3_rr
• wdir_vec_mean_mv
• soil_heat_flow_2_mv
• temp_air_right
• soil_moisture_3_rr
• alt
• soil_temp_4_rr
• temp_trh_right_rr
• battery_voltage

• energy_storage_change_1
• energy_storage_change_4
• energy_storage_change_5
• energy_storage_change_2
• soil_temp_5
• Wind speed arithmetic mean(wspd_arith_mean)
• energy_storage_change_3
• soil_temp_3
• soil_temp_4
• soil_temp_1
• soil_temp_2
• temp_air_top
• soil_heat_flow_4
• soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3
• soil_moisture_4
• soil_moisture_3
• vapor_pressure_top
• soil_moisture_2
• soil_moisture_1
• temp_air_bottom
• soil_moisture_5
• rh_top_fraction
• Wind speed vector mean(wspd_vec_mean)
• alt
• corr_soil_heat_flow_5
• corr_soil_heat_flow_1
• corr_soil_heat_flow_2
• corr_soil_heat_flow_3
• corr_soil_heat_flow_4
• Atmospheric pressure(atmos_pressure)
• temp_reference
• rh_bottom_fraction
• time_offset
• base_time
• vapor_pressure_bottom
• lat
• home_signal_30
• temp_trh_bottom
• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_4
• Wind direction vector mean(wdir_vec_mean)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• home_signal_15
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Radiation, net(net_radiation)
• lon
• temp_trh_top
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• bowen_ratio
• wdir_vec_std
• surface_soil_heat_flux_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3

• home_signal
• Radiation, net(net_radiation)
• time
• Wind speed arithmetic mean(wspd_arith_mean)
• time_offset
• vapor_pressure_top
• rh_top_fraction
• Wind direction vector mean(wdir_vec_mean)
• alt
• temp_reference
• lon
• lat
• temp_air_bottom
• Wind speed vector mean(wspd_vec_mean)
• Atmospheric pressure(atmos_pressure)
• base_time
• rh_bottom_fraction
• temp_trh_bottom
• wdir_vec_std
• temp_trh_top
• vapor_pressure_bottom
• temp_air_top

SGP/EBBR/E2 - Windspeed sensor failure

The windspeed sensor developed an abnormally high wind speed threshold due to worn 
bearings.

Wind speeds were often measured to be too low.  Inspect the data to identify suspect time 
periods.

• Wind speed arithmetic mean(wspd_arith_mean)

• Wind speed arithmetic mean(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed vector mean(wspd_vec_mean)
• Wind speed arithmetic mean(wspd_arith_mean)

SGP/EBBR/E7 - Windspeed threshhold too high

The wind speed sensor developed worn bearings and therefore too high a starting 
threshhold.

The data user should compare the EBBR wind speed with the SMOS wind speed to detect 
periods when the EBBR wind speed threshhold caused poor data quality.

• Wind speed arithmetic mean(wspd_arith_mean)

• Wind speed arithmetic mean(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed vector mean(wspd_vec_mean)
• Wind speed arithmetic mean(wspd_arith_mean)

SGP/EBBR/E8 - Failed Temp/RH sensor

The right Temperature-Humidity sensor failed. The measured temperature gradients were 
incorrect and thus the sensible and latent heat fluxes were incorrect for this extended 
period.

The sensor was replaced March 6.

• temp_trh_right_rr

• vapor_pressure_bottom
• temp_trh_top
• vapor_pressure_top
• temp_trh_bottom

• vapor_pressure_bottom
• temp_trh_bottom
• vapor_pressure_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• bowen_ratio
• temp_trh_top
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E4 - Wind Direction Stuck at Zero

The wind direction sensor was stuck at zero.

• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std

• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)

• wdir_vec_mean_mv

SGP/EBBR/E22 - Wind Direction Incorrect

Wind direction was flat-lining at 135 degrees and occasionally changed to 0.4 degrees.

• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std

• wdir_vec_std
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

• wdir_vec_mean_mv

SGP/EBBR/E4 - Instrument problem

Wind direction was flat lining near zero and incorrect.

• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std

• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std

• wdir_vec_mean_mv

SGP/EBBR/E20 - Reprocess: Wind Direction 20 Degrees Low

The EBBR wind direction was found to be misaligned 20 degrees low. 

This bias should have had no effect on the res_ws or sigma_wd measurements.

• Wind direction vector mean(wdir_vec_mean)

• wdir_vec_mean_mv

• Wind direction vector mean(wdir_vec_mean)

SGP/EBBR/E27 - Multiplexer #2 failure

A problem with the #2 Multiplexer caused a large number of measurements to be incorrect.  
Sensible and latent heat fluxes were often affected.

• rh_top_fraction
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_air_bottom
• temp_air_top
• Radiation, net(net_radiation)
• home_signal
• Atmospheric pressure(atmos_pressure)
• vapor_pressure_top

• soil_heat_flow_2_mv
• atmos_pressure_mv
• soil_heat_flow_4_mv
• soil_heat_flow_1_mv
• temp_air_left
• home_signal
• soil_heat_flow_3_mv
• soil_heat_flow_5_mv
• rh_right_mv
• net_radiation_mv
• temp_air_right
• rh_left_mv

• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• soil_heat_flow_1
• surface_soil_heat_flux_2
• soil_heat_flow_2
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• Radiation, net(net_radiation)
• home_signal_30
• rh_bottom_fraction
• rh_top_fraction
• surface_soil_heat_flux_1
• vapor_pressure_top
• corr_soil_heat_flow_1
• temp_air_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• home_signal_15
• temp_air_bottom
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• bowen_ratio
• corr_soil_heat_flow_2
• vapor_pressure_bottom
• corr_soil_heat_flow_3
• corr_soil_heat_flow_4
• corr_soil_heat_flow_5

SGP/EBBR/E4 - Wind Direction Incorrect

The EBBR wind direction sat at about 60 degrees from 08/09 0230 GMT through 08/24 1930 GMT 
and was incorrect.

• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std

• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)

• wdir_vec_mean_mv

SGP/EBBR/E22 - H and LE Incorrect

Soil Heat Flow 1 bounced around and went offscale at times, resulting in the EBBR program 
setting sensible and latent heat fluxes to 9999es.

The problem ended during a PM visit, possibly because of routine checks and tightening of 
leads in terminal strips.

• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• corr_soil_heat_flow_1
• soil_heat_flow_1
• surface_soil_heat_flux_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)

• soil_heat_flow_1_mv

SGP/EBBR/E26 - Sensible and Latent Heat Fluxes Affected by bad temp sensor

The left Thum (temperature of the humidity sensor chamber) measurement was incorrect at 
times, affecting several measurements, including the sensible and latent heat fluxes.

• vapor_pressure_bottom
• temp_trh_top
• bowen_ratio
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_bottom
• vapor_pressure_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• temp_trh_left_rr

• temp_trh_top
• temp_trh_bottom
• vapor_pressure_bottom
• vapor_pressure_top

SGP/EBBR/E20 - Reprocess: Wind Direction 65 Degrees Low

The wind direction sensor reported wind directions that were 65 degrees too low because of 
a mis-alignment.

This bias should have no effect on the res_ws or sigma_wd measurements.

The wind direction data could be re-processed by adding 65 degrees.

• Wind direction vector mean(wdir_vec_mean)

• wdir_vec_mean_mv

• Wind direction vector mean(wdir_vec_mean)

SGP/EBBR/E9 - Net Radiation Incorrect

There was water in the net radiometer.  

The net radiation data was incorrect.

• Radiation, net(net_radiation)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

• net_radiation_mv

• Radiation, net(net_radiation)

SGP/EBBR/E27 - Measurements offscale

All J-panel 4 measurements (soil heat flows, net radiation, air temperatures, home 
signals, pressure, vapor pressure) were sometimes offscale or otherwise incorrect.  J-Panel was 
replaced 20080326 correcting the problem.

• temp_air_bottom
• temp_air_top
• Radiation, net(net_radiation)
• home_signal
• Atmospheric pressure(atmos_pressure)
• vapor_pressure_top
• vapor_pressure_bottom

• soil_heat_flow_2_mv
• home_signal
• soil_heat_flow_3_mv
• soil_heat_flow_5_mv
• soil_heat_flow_4_mv
• atmos_pressure_mv
• net_radiation_mv
• temp_air_right
• soil_heat_flow_1_mv
• temp_air_left

• corr_soil_heat_flow_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• surface_soil_heat_flux_2
• soil_heat_flow_1
• surface_soil_heat_flux_3
• soil_heat_flow_2
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• Radiation, net(net_radiation)
• temp_air_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• home_signal_30
• Atmospheric pressure(atmos_pressure)
• home_signal_15
• temp_air_bottom
• surface_soil_heat_flux_1
• vapor_pressure_top
• vapor_pressure_bottom
• corr_soil_heat_flow_2
• corr_soil_heat_flow_3
• corr_soil_heat_flow_4
• corr_soil_heat_flow_5

SGP/EBBR/E4 - Reprocess: Wind Direction Incorrect

The wind direction was misaligned by 180 degrees. If the wind direction was 180 degrees or 
less, add 180 degrees to give the correct direction.  If the wind direction was greater 
than 180 degrees, subtract 180 degrees to give the correct direction.

• Wind direction vector mean(wdir_vec_mean)

• Wind direction vector mean(wdir_vec_mean)

• wdir_vec_mean_mv

SGP/EBBR/E8 - RH Maximum too high

The absolute RH measurements were too high for RH > 100%. Use of first
(instead of second order) coefficients was no improvement.

The calculated sensible and latent heat fluxes were unaffected.

• rh_right_mv
• rh_left_mv

• rh_bottom_fraction
• rh_top_fraction

• rh_bottom_fraction
• rh_top_fraction