SGP/EBBR/E19 - Incorrect Sensible and Latent Heat Fluxes

The gradient measurements and latent and sensible heat fluxes were incorrect because the 
AEM was not exchanging. 

The problem was fixed by replacing the AEM.

• temp_air_left
• temp_air_right

• temp_trh_bottom
• vapor_pressure_bottom
• temp_trh_top
• temp_air_top
• vapor_pressure_top
• rh_top_fraction
• temp_air_bottom
• rh_bottom_fraction

• surface_soil_heat_flux_1
• temp_air_bottom
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_top
• temp_air_top
• rh_top_fraction
• vapor_pressure_top
• temp_trh_bottom
• rh_bottom_fraction
• bowen_ratio
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E15 - Incorrect Sensible and Latent Heat Fluxes

Incorrect gradient measurements and sensible and latent heat fluxes resulted from the AEM 
not exchanging.

• vapor_pressure_top
• rh_top_fraction
• temp_trh_bottom
• rh_bottom_fraction
• temp_trh_top
• vapor_pressure_bottom
• temp_air_top
• temp_air_bottom

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

• temp_air_left
• temp_air_right

SGP/EBBR/E7 - Barometric Pressure Incorrect

The pressure measurement sometimes dropped to zero during daytime because of 
unstable battery voltage.

• atmos_pressure_mv

• Atmospheric pressure(atmos_pressure)

• Atmospheric pressure(atmos_pressure)

SGP/EBBR/E8 - AEM Not Exchanging

The AEM hung in one position frequently and sometimes for many days during this period

While the AEM was not switching, the sensible and latent heat fluxes and gradient 
measurements were incorrect.

• temp_air_left
• temp_air_right

• vapor_pressure_top
• rh_top_fraction
• temp_trh_bottom
• temp_air_bottom
• vapor_pressure_bottom
• rh_bottom_fraction
• temp_trh_top
• temp_air_top

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

SGP/EBBR/E12 - Sensible and Latent Heat Fluxes Incorrect at Times

Large spikes in soil temperature #2 are causing the soil heat storage
term to blow up, and thus the average soil heat flow, sensible heat flux, 
and latent heat flux to be incorrect at times.

• soil_temp_2_rr

• energy_storage_change_2
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• surface_soil_heat_flux_2
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E22 - Sensible and Latent Heat Fluxes Incorrect

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

• vapor_pressure_top
• rh_bottom_fraction
• temp_trh_top
• vapor_pressure_bottom
• temp_air_top
• rh_top_fraction
• temp_trh_bottom
• temp_air_bottom

• temp_air_left
• temp_air_right

SGP/EBBR/E27 - Sensible and Latent Heat Fluxes Incorrect

The left T/RH probe temperature sensor was spiking some of the time during these periods. 
Therefore, sensible and latent heat fluxes were incorrect during parts of the periods as 
well.

• vapor_pressure_top
• temp_trh_bottom
• temp_trh_top
• vapor_pressure_bottom

• temp_trh_left_rr

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

SGP/EBBR/E22 - Fluxes Incorrect When Soil Heat Flow #3 Out of Range

When soil heat flow #3 exceeded the range limit in the EBBR program, it was replaced with 
9999es.  This caused the ave_shf and the sensible and latent heat fluxes to be incorrect.

• 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)

SGP/EBBR/E12 - Fluxes and Gradient Measurements Incorrect

The AEM hung in one position; therefore the fluxes and gradient measurements were 
incorrect.

• temp_air_right
• temp_trh_left_rr
• rh_left_mv
• rh_right_mv
• temp_air_left
• temp_trh_right_rr

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

• rh_top_fraction
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_air_bottom
• temp_air_top
• temp_trh_bottom
• vapor_pressure_top

SGP/EBBR/E13 - Missing Data

The Data was missing during these three periods for various reasons.

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

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

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

SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect

The AEM hung in one position; flux and gradient measurements were therefore incorrect.

• rh_left_mv
• temp_trh_left_rr
• temp_air_left
• temp_air_right
• temp_trh_right_rr
• rh_right_mv

• temp_air_top
• rh_top_fraction
• vapor_pressure_top
• temp_trh_top
• vapor_pressure_bottom
• rh_bottom_fraction
• temp_air_bottom
• temp_trh_bottom

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

SGP/EBBR/E13 - Net Radiation and Fluxes Suspect

The net radiometer had water in it, making the net radiation and flux measurements 
suspect; the latter do not appear to be incorrect, but should be considered as suspect anyway.

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E15 - Wind Speed Sensor Frozen Stopped

Freezing rain froze the wind speed sensor to a stopped condition during the period.

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

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

• Wind speed arithmetic mean(wspd_arith_mean)

SGP/EBBR/E18 - Wind Speed Zero

Wind Speed was zero, presumably because the sensor was frozen stopped during freezing 
rain.

• Wind speed arithmetic mean(wspd_arith_mean)

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

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

SGP/EBBR/E2 - Wind Speed Sensor Frozen Stopped

Freezing rain froze the wind speed sensor to a stopped condition.

• 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/E20 - Suspect Measurements

Some measurements may be incorrect because of low supply voltage.

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

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

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

SGP/EBBR/E22 - Wind Speed Sensor Frozen Stopped

The wind speed sensor was frozen to a stopped condition.

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

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

• Wind speed arithmetic mean(wspd_arith_mean)

SGP/EBBR/E26 - Measurements Incorrect

Most measurements were incorrect during low battery voltage conditions.

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

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

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

SGP/EBBR/E27 - Flux and Gradient Measurements Incorrect

The sensible and latent heat flux and gradient measurements were incorrect
while the AEM was hung in one position.

• temp_trh_bottom
• temp_air_bottom
• rh_top_fraction
• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• temp_trh_top
• vapor_pressure_bottom

• temp_trh_right_rr
• rh_right_mv
• temp_air_right
• temp_air_left
• rh_left_mv
• temp_trh_left_rr

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

SGP/EBBR/E4 - Wind Speed Sensor Frozen Stopped

Freezing rain froze the Wind Speed sensor to a stopped condition.

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

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

• Wind speed arithmetic mean(wspd_arith_mean)

SGP/EBBR/E7 - Fluxes and Gradient Measurements Incorrect

The left AEM aspirator was not working during this period, resulting in incorrect gradient 
and flux measurements.

• temp_air_left
• rh_left_mv
• temp_trh_left_rr

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

• rh_bottom_fraction
• temp_air_bottom
• temp_air_top
• temp_trh_bottom
• rh_top_fraction
• vapor_pressure_top
• vapor_pressure_bottom
• temp_trh_top

SGP/EBBR/E8 - Flux and Gradient Measurements Suspect

The flux and gradient measurements were often incorrect when the AEM did not function 
properly.  The user needs to inspect the data (particularly the home signals) to determine 
when the AEM was and was not working.

• temp_trh_right_rr
• rh_left_mv
• temp_air_right
• temp_trh_left_rr
• rh_right_mv
• temp_air_left

• rh_top_fraction
• temp_trh_top
• temp_air_top
• vapor_pressure_top
• temp_trh_bottom
• temp_air_bottom
• rh_bottom_fraction
• vapor_pressure_bottom

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

SGP/EBBR/E8 - Wind Speed Sensor Frozen Stopped

Freezing rain froze the wind speed sensor to a stopped condition.

• 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 - Fluxes Incorrect; Left Humidity Near Zero

The left humidity was intermittently incorrect, therefore the sensible and latent heat 
fluxes were also.

• rh_left_mv

• vapor_pressure_bottom
• rh_bottom_fraction
• vapor_pressure_top
• rh_top_fraction

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

SGP/EBBR/E8 - Sensible and Latent Heat Flux Suspect

The left humidity sensor produced large spikes frequently.  This resulted in incorrect 
measurements of vapor pressure gradient and thus calculations of sensible and latent heat 
flux.

• rh_left_mv

• vapor_pressure_bottom
• rh_bottom_fraction
• vapor_pressure_top
• rh_top_fraction

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

SGP/EBBR/E27 - Instrument problem, Loose connections

The soil heat flow #1 sensor went offscale low on occasion.  This sometimes caused 
sensible and latent heat fluxes to be 9999ed out by the EBBR programming, but not always.

• soil_heat_flow_1_mv

• corr_soil_heat_flow_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• surface_soil_heat_flux_1
• soil_heat_flow_1
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E9 - Wind Speed Incorrect

The wind speed measurement was incorrect after the cup anemometer lost a cup.

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

• Wind speed arithmetic mean(wspd_arith_mean)

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

SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected

The left air temperature was incorrect, thus the Bowen ratio and sensible and latent heat 
fluxes were incorrect also.

• temp_air_left

• temp_air_top
• temp_air_bottom

• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• temp_air_bottom
• bowen_ratio
• temp_air_top
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems

The AEM did not function properly, thus sensible and latent heat fluxes were incorrect.

• temp_air_right
• temp_air_left

• temp_air_top
• rh_bottom_fraction
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• vapor_pressure_top
• temp_trh_top
• vapor_pressure_bottom

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

SGP/EBBR/E20 - Net Radiation, Fluxes Too Large

Net Radiation was way too large because of water in the bottom dome.
This resulted in the sensible and latent heat fluxes being too large also.

• Radiation, net(net_radiation)

• 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)

SGP/EBBR/E27 - Field fire burned AEM

A fire in the E27 field burned the AEM, making it non-functional.
Sensible and latent heat fluxes and gradients were incorrect during this period.

• temp_trh_bottom
• temp_air_bottom
• rh_top_fraction
• temp_air_top
• home_signal
• rh_bottom_fraction
• vapor_pressure_top
• temp_trh_top
• vapor_pressure_bottom

• home_signal
• temp_trh_right_rr
• rh_right_mv
• temp_air_right
• temp_air_left
• rh_left_mv
• temp_trh_left_rr

• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_air_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• home_signal_30
• rh_bottom_fraction
• home_signal_15
• rh_top_fraction
• temp_air_bottom
• temp_trh_bottom
• temp_trh_top
• vapor_pressure_top
• vapor_pressure_bottom
• bowen_ratio

SGP/EBBR/E27 - Sensible, Latent, and Average Soil Heat Fluxes Sometimes Incorrect

The Soil Heat Flow #1 sensor kept going offscale.

Sensible and Latent heat fluxes and the ave_shf were affected and sometimes
incorrect.

• soil_heat_flow_1_mv

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

SGP/EBBR/E27 - Low Battery Condition

A low battery condition caused most of the measurements to be incorrect.

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

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

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

SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale

There were several half hours during this period when the pressure went offscale or at 
least to a high value, causing the sensible and latent heat fluxes to be incorrect.

• atmos_pressure_mv

• Atmospheric pressure(atmos_pressure)

• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Atmospheric pressure(atmos_pressure)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E27 - Most Measurements Suspect

The wrong EBBR program was used at this site.  Therefore, most of the measurements are 
suspect.

Note: Mentor reports reprocessing will not correct this problem.

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

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

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

SGP/EBBR/E27 - Battery Voltage Problem - Measurements Incorrect

Battery voltage was too low much of the time during the period, thus most measurements 
were incorrect during much of the time period.

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

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

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

SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect

The net radiometer dome was cracked and water had gotten in, resulting in incorrect net 
radiation measurements and therefore incorrect sensible and latent heat flux measurements.

• net_radiation_mv

• 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)

• Radiation, net(net_radiation)

SGP/EBBR/E8 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect

The net radiometer top dome was broken and water had gotten into it.

Sensible and latent heat fluxes and net radiation were therefore incorrect.

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E12 - Net Radiation, and Sensible and Latent Heat Fluxes Incorrect

Rain entered into the net radiometer through a broken top dome.  Most of the net radiation 
values during the period are much too large, thus sensible and latent fluxes are also 
too large.

• 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)
• Radiation, net(net_radiation)

• net_radiation_mv

• Radiation, net(net_radiation)

SGP/EBBR/E12 - Soil Temperature #1 Incorrect

During much of this period soil temperature #1 was offscale or erratic.
Sensible and latent heat fluxes were not ususally affected.

• soil_temp_1_rr

• soil_heat_capacity_1
• energy_storage_change_1
• soil_temp_1
• surface_soil_heat_flux_1

SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative

During this period Soil Heat Flow #3 was sometimes incorrect (large negative); during 
those times, sensible and latent heat fluxes and average soil heat flux were sometimes (but 
not always incorrect).

• soil_heat_flow_3_mv

• soil_heat_flow_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• corr_soil_heat_flow_3
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect

During spikes in pressure upwards or downwards the sensible and latent heat fluxes were 
incorrect.

• atmos_pressure_mv

• Atmospheric pressure(atmos_pressure)

• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Atmospheric pressure(atmos_pressure)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low

Most measurements were incorrect during this period because the battery voltage was below 
10.5 volts.

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

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

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

SGP/EBBR/E22 - Net Radiation and Sensible and Latent Heat Fluxes Incorrect

Rain entered the net radiometer, causing net radiation, and thus sensible and latent heat 
fluxes, to be too large.

• 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)
• Radiation, net(net_radiation)

• Radiation, net(net_radiation)

• net_radiation_mv

SGP/EBBR/E4 - Soil Heat Flow #2 Incorrect at times

Soil Heat Flow #2 sometimes dropped to large negative values during daytime.

• soil_heat_flow_2_mv

• corr_soil_heat_flow_2
• 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)
• soil_heat_flow_2
• surface_soil_heat_flux_2
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E18 - Sensible and Latent Heat Fluxes Incorrect

Sensible and latent heat fluxes were incorrect during this period because the AEM was not 
exchanging.

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

SGP/EBBR/E22 - Soil Heat Flow #4 Incorrect - Sensible and Latent Heat Fluxes Sometimes 
Affected

Soil heat flow sensor #4 dropped to low values or offscale.

Sensible and latent heat fluxes were sometimes affected.

• 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_4
• soil_heat_flow_4
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• surface_soil_heat_flux_4

• soil_heat_flow_4_mv

SGP/EBBR/E13 - Battery failure

Data was missing entirely on parts of 10/22 and 10/23.

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

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

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

SGP/EBBR/E19 - Sensible and Latent Heat Fluxes Incorrect

The sensible and latent heat fluxes were incorrect when the top and bottom air 
temperatures were incorrect.

• temp_air_bottom
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_air_top
• bowen_ratio
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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/E13 - Radiometer dome broken

The top net radiometer dome was broken, yielding net radiation, sensible heat flux and 
latent heat flux that were too low.

The BEFLUX (SIRS) net radiation can be used as a replacement for the EBBR net radiation.

To correct the sensible and latent heat fluxes, determine the ratio of SIRS net radiation 
to EBBR net radiation for each daylight half hour and multiply that ratio times H and LE 
to obtain approximate corrected flux values.

• net_radiation_mv

• Radiation, net(net_radiation)

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

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