SGP/EBBR - EBBR E19 Changeout, Data Missing/Incorrect

During changeout of the EBBR system at E19, data was missing for the
time period, except for 1815-1830 GMT, when the data was incorrect.

• soil_heat_flow_1_mv
• base_time
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• time_offset
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• lat
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• alt
• temp_trh_right_rr
• home_signal
• soil_temp_3_rr
• soil_moisture_1_r
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_2_r
• soil_temp_5_rr
• soil_moisture_5_r
• temp_trh_left_rr
• soil_heat_flow_5_mv
• lon
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• lon
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• lat
• time_offset
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• alt
• base_time
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• base_time
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_top
• lon
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• lat
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• time_offset
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• alt
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR - EBBR E19 Wind Speed Incorrect

The anemometer cups were frozen stalled during the period.

The following values were therefore incorrect:

5 minute:  wind_s, res_ws
15 minute: wind_s
30 minute: wind_s, res_ws

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR - EBBR E19 Net Radiation Incorrect

The net radiometer top dome was broken and water had entered.  Net 
radiation values are therefore incorrect during the period.

The affected data are:

5 minute:  q
15 minute: mv_q
30 minute: q, h, e

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E19 - EBBR E19 Wind Speed Iced

The anemometer was frozen stopped by freezing rain.  Indicated data is incorrect.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP EBBR E19 - E19 EBBR Left RH Probe Temperature Incorrect

The Left RH probe temperature was drifting.  The indicated measurements are incorrect.

• temp_trh_left_rr

• temp_trh_bottom
• vapor_pressure_top
• vapor_pressure_bottom
• temp_trh_top

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

SGP EBBR E19 - E19 EBBR Left Aspirator Housing Off

The left aspirator housing fell off and thus the indicated measurements are incorrect.

• temp_air_left
• rh_left_mv
• temp_trh_left_rr

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

• 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 E19 - E19 EBBR Left Air Temperature Incorrect

A bad capacitor on the J-panel caused left air temperature, and thus other measurements to 
be incorrect.

• temp_air_left

• temp_air_bottom
• temp_air_top

• 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 E19 - E19 EBBR Data Incorrect During J-panel Replacement

The indicated data was incorreect during a J-panel replacement.

• soil_moisture_2_r
• temp_trh_left_rr
• soil_moisture_1_r
• soil_temp_1_rr
• temp_trh_right_rr

• temp_trh_bottom
• vapor_pressure_bottom
• temp_trh_top
• vapor_pressure_top

• surface_soil_heat_flux_1
• soil_moisture_2
• soil_moisture_1
• soil_heat_capacity_2
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_top
• soil_heat_capacity_1
• vapor_pressure_top
• energy_storage_change_1
• temp_trh_bottom
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• bowen_ratio
• vapor_pressure_bottom
• Soil temperature mean 1(soil_temp_1)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP EBBR E19 - E19 EBBR Wind Direction Incorrect

The wind direction sensor was frozen stopped during the indicated period.

• wdir_vec_mean_mv

• wdir_vec_std
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)

SGP EBBR E19 - E19 EBBR Wind Speed Incorrect

The wind speed sensor was iced stopped for a while on this day.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP EBBR E19 - E19 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

• soil_temp_4_rr
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_heat_flow_1_mv
• temp_trh_right_rr
• temp_air_left
• atmos_pressure_mv
• soil_temp_3_rr
• rh_left_mv
• soil_moisture_1_r
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• wdir_vec_mean_mv
• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_2_r
• soil_temp_5_rr
• net_radiation_mv
• soil_moisture_5_r
• temp_trh_left_rr
• soil_heat_flow_5_mv
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• rh_top_fraction
• rh_bottom_fraction
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• vapor_pressure_top
• temp_air_bottom
• temp_reference
• vapor_pressure_bottom
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)
• Radiation, net(net_radiation)

• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• vapor_pressure_top
• energy_storage_change_1
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Radiation, net(net_radiation)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• soil_moisture_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_heat_capacity_4
• soil_moisture_4
• soil_heat_capacity_5
• soil_moisture_3
• surface_soil_heat_flux_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• surface_soil_heat_flux_3
• soil_heat_capacity_1
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)
• bowen_ratio
• soil_moisture_5
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_top
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• 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

• 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/E19 - Most Measurements Incorrect

Most measurements were incorrect for the indicated periods.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• soil_moisture_1
• surface_soil_heat_flux_2
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - All Measurements Zero

Measurements are often zero the first period after a CR10 restart.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• soil_moisture_1
• surface_soil_heat_flux_2
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Pressure Incorrect

The pressure measurement was incorrect.  This is used to determine the Bowen ratio, 
thereby affecting the sensible and latent heat fluxes also.

• Barometric Pressure(atmos_pressure)

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

SGP/EBBR/E19 - Measurements Incorrect After CR10 Replacement

Replacement of the CR10 datalogger caused most measurements to be incorrect, reason 
unknown.
A different logger was installed at the end of the specified period and this resolved the 
problem.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Low Battery Voltage

A battery voltage of less than 10.5 causes many of the sensors to produce incorrect 
measurements.
The 15 minute data contains the battery voltage and should be used to determine whether 
the measurements are usable, based on battery voltage.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Data Incorrect during 6 month checks

Some of the measurements are incorrect during the 6 month checks.

• 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

• 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/E19 - Water in Net Radiometer Dome

The net radiation measurement is incorrect. Measurements 
calculated using net radiation are also incorrect.  

No work-around is possible for this situation.

• Radiation, net(net_radiation)

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

SGP/EBBR/E19 - Incorrect data after power interruption

Most measurements are suspect after a power outage, caused by
replacement of the solar panel regulator.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• soil_moisture_1
• surface_soil_heat_flux_2
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Most Measurements Zero following Restart

Most of the measurements were zero, which normally happens after a 
datalogger restart.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Pressure Low

The barometric pressure sensor read about 10 mb low during this
period because a lead from the sensor was loose or disconnected.

The error does not affect any other measurements.

• Barometric Pressure(atmos_pressure)

• Barometric Pressure(atmos_pressure)

SGP/EBBR/E19 - Measurements zero following logger restart

Most of the measurements were zero, which normally happens after a 
datalogger restart.  The restart on 01/09/03 occurred after J-panel
replacements.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - All Data Zeros

All data (5, 15, and 30 minute) was zero after replacement of sensors and restart of the 
CR10.

This is a common occurrence.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Many Measurements Incorrect

Many measurements were incorrect during replacement of a multiplexer.

• temp_air_left
• soil_temp_4_rr
• soil_temp_3_rr
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_temp_5_rr
• temp_trh_left_rr
• temp_trh_right_rr
• temp_air_right

• temp_trh_bottom
• temp_trh_top
• temp_air_bottom
• temp_reference
• temp_air_top

• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• energy_storage_change_1
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• temp_air_bottom
• surface_soil_heat_flux_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• surface_soil_heat_flux_3
• temp_trh_top
• temp_air_top
• surface_soil_heat_flux_4
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• bowen_ratio
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E19 -  6 Month Checks

Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.

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

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

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

SGP/EBBR/E19  - Water in Net Radiometer; Surface Fluxes are Incorrect

The net radiometer top dome was punctured by migrating birds.  This alone does not cause 
incorrect net radiation measurements.  However, when it subsequently rains, water collects 
in the bottom dome, causing the net radiation measurements to be too large during the 
day and too small at night.

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E19 - Tair Right Offscale

The right air temperature data were going offscale.  This 
                  affected the calculation of sensible and latent heat 
                  fluxes.

• temp_air_right

• temp_air_bottom
• temp_air_top

• 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/E19 - Battery Voltage Too Low, Most Measurements Incorrect

Battery voltage dropped below levels required to sustain the 
               production of valid data.  The AC charger unit had failed.  
               This prevented charging of the battery during the night and
               prevented the solar panel regulator from properly charging 
               the battery during the day.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• time
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - AEM Stuck In One Position, Surface Fluxes Incorrect

The AEM home 15 and 30 outputs were both 40 mv
because the AEM was not exchanging.

Sensible and Latent Heat Fluxes are therefore
incorrect.

• temp_air_left
• temp_trh_left_rr
• temp_trh_right_rr
• 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

• 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/E19 - Data Missing During Recalibration Changeout

Data was missing during the recalibration changeout.

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• base_time
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• time_offset
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• lat
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• alt
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• lon
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• lon
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• lat
• time_offset
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• alt
• base_time
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• soil_moisture_2
• surface_soil_heat_flux_1
• soil_moisture_1
• surface_soil_heat_flux_2
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)
• soil_moisture_5
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• base_time
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_top
• lon
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• lat
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• time_offset
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• alt
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

• vegetation_height
• Heat flux, sensible, best estimate(hcomb)
• g3
• g4
• g5
• vp_top
• g1
• g2
• ces5
• lon
• ces2
• ces1
• ces4
• tair_bot
• wind_d
• ces3
• hum_top
• time_offset
• bowen
• home_15
• cs3
• cs2
• cs1
• cs5
• cs4
• tair_top
• Heat flux, latent(e)
• vp_bot
• shf5
• shf3
• shf4
• shf1
• shf2
• Corrected sensible heat flux(h)
• Radiation, net(q)
• ts3
• ts4
• ts5
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• ts1
• sm1
• ts2
• Heat flux, sensible, aerodynamic(ah)
• sm3
• sm2
• sm5
• sm4
• c_shf5
• c_shf2
• c_shf1
• c_shf4
• c_shf3
• Average soil heat flux(ave_shf)
• hum_bot
• thum_bot
• sigma_wd
• tref
• Heat flux, latent, best estimate(ecomb)
• thum_top
• base_time
• home_30
• austar
• res_ws
• alt
• lat
• Heat flux, latent, aerodynamic(ale)
• wind_s

SGP/EBBR/E19 - 6 Month Checks

Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.

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

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

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

SGP/EBBR/E19 - 6 Month Checks

Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.

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

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

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

SGP/EBBR/E19 - Data All Zeros

The time period after restart of the datalogger produced all
zero data.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• soil_moisture_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Most Data Incorrect

Most of the 5 minute data is incorrect after the restart of the datalogger.

• vapor_pressure_top
• Barometric Pressure(atmos_pressure)
• rh_top_fraction
• temp_air_bottom
• Radiation, net(net_radiation)
• vapor_pressure_bottom
• home_signal
• temp_air_top
• rh_bottom_fraction

SGP/EBBR/E19 - Wind Speed Sensor Frozen Stopped by Ice Storm

An ice storm froze the wind speed sensor to a stopped condition.
It is not known how long this condition existed, as data is missing
for more than 10 days after the end of the stated period.

The wind speed and residual wind speed measurements are incorrect.

This sensor failure does not affect the sensible and latent heat fluxes.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Low Battery Voltage Caused Incorrect Data

Battery voltage less than 10.5 V caused much data to be questionable or incorrect.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• soil_temp_4_rr
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• soil_heat_flow_5_mv
• soil_heat_flow_2_mv
• temp_air_right

• temp_trh_top
• time
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• 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)
• temp_trh_top
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19  - Wind Speed Frozen Stopped By Ice

An ice storm froze the wind speed sensor to a stopped condition.

The wind speed and residual wind speed measurements are incorrect.

This sensor failure does not affect the sensible and latent heat fluxes.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Reprocess: Incorrect Net Rad Calibration Coefficient

The net radiometer coefficient installed on 2/5/04 for nighttime (negative voltage 
calibration) was incorrect.

Negative net radiations during the subject period can be multiplied by
0.9419 to get corrected net radiation measurements.  The sensible (H)
and latent heat (LE) fluxes (which are very small at night anyway) can
be recalculated using the following equations (where B is Bowen ratio,
Rn is corrected net radiation, and G is soil heat flow):

LE = -(Rn + G)/(B + 1)

H = -(Rn + G + LE)

• Radiation, net(net_radiation)

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

• Corrected sensible heat flux(h)
• Heat flux, latent, aerodynamic(ale)
• Heat flux, sensible, aerodynamic(ah)
• Heat flux, latent(e)
• Radiation, net(q)

SGP/EBBR/E19 - Metadata errors

The latitude, longitude and altitude of the El Reno (E19) site were
incorrectly entered into the ARM database.  The correct location
of the EBBR.E19 instrument is:
    Lat: 35.557N
    Lon: 98.017W
    Alt:    421m

• alt
• lon
• lat

• lat
• lon
• alt

• alt
• lon
• lat

SGP/EBBR/E19 - Metadata errors

The latitude, longitude and altitude of the El Reno (E19) site were
incorrectly entered into the ARM database.  The correct location
of the EBBR.E19 instrument is:
       Lat: 35.557N
       Lon: 98.017W
       Alt:    421m

• lat
• lon
• alt

SGP/EBBR/E19 - AEM Hung Inbetween Home Positions

The AEM hung inbetween home positions, producing a home signal of zero.

Sensible and latent heat fluxes during this period are incorrect.

• 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

• 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/E19 - 6 Month Checks

Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.

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

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

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

SGP/EBBR/E19  - Wind Speed Frozen Stopped By Ice Storm

An ice storm froze the wind speed sensor to a stopped condition.

The wind speed and residual wind speed measurements are incorrect.

This sensor failure does not affect the sensible and latent heat fluxes.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19  - Wind Direction Frozen Stopped By Ice Storm

The wind direction sensor was frozen stopped by ice from a storm.  
The wind direction, sigma_wd, and residual wind speed measurements 
are incorrect.

• wdir_vec_mean_mv

• wdir_vec_std
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19  - Wind Speed Constant

Wind Speed was constant at 5 m/s during this period; the reason is unknown.

This sensor failure does not affect the sensible and latent heat fluxes.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Reprocess: Negative Net Rad calibrations

The calibration for negative net radiation was incorrectly entered in the datalogger 
program.

• Radiation, net(net_radiation)

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

SGP/EBBR/E19 - Net Radiation Incorrect - Cable Chewed by Rodents

The net radiation measurement was incorrect after the net radiometer cable was chewed by 
rodents.  Sensible and latent heat fluxes were therefore incorrect.

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E19 - metadata corrections

On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E19 data collected by ARM back to the beginning of the data 
set in May 1997. Please see the current metadata for correct information.  These changes 
do not affect data values or quality.	

The changes are summarized below:
1) Update of "sensor location" information
2) Addition of installation dates for the systems
3) Correction of soil type
4) Correction of soil moisture units (from "by volume" to "gravimetric")

• base_time

• base_time

• base_time

SGP/EBBR/E19 - Net Radiation, Sensible and Latent Heat Fluxes Incorrect

The net radiometer cable was chewed by an animal.  Net Radiation, Sensible Heat Flux, and 
Latent Heat Flux were incorrect during the stated periods.

• net_radiation_mv

• Radiation, net(net_radiation)

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

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/E19 - Sensible and latent heat flux and net radiation incorrect

Net radiation was too large, resulting in sensible and latent heat fluxes being too large. 
 The cause of the problem is unknown.

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E19 - Wind Speed Incorrect

Wind Speed was frozen stopped by ice and was incorrect during this period.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Wind direction sensor frozen near north

The wind direction sensor was frozen in place near north by freezing rain.

• wdir_vec_mean_mv

• wdir_vec_std
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Wind speed sensor frozen stopped

The wind speed sensor was frozen stopped by freezing rain.

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv

• wdir_vec_std
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/EBBR/E19 - Nighttime data missing

Battery supply voltage was insufficient at night to power the system resulting in missing 
data.

• soil_heat_flow_1_mv
• soil_moisture_4_rr
• base_time
• soil_moisture_2_rr
• temp_air_left
• atmos_pressure_mv
• rh_left_mv
• time_offset
• soil_moisture_3_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• net_radiation_mv
• lat
• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• temp_reference_rr
• soil_temp_2_rr
• soil_moisture_1_rr
• time
• alt
• temp_trh_right_rr
• home_signal
• soil_moisture_5_rr
• soil_temp_3_rr
• soil_moisture_1_r
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_2_r
• soil_temp_5_rr
• soil_moisture_5_r
• temp_trh_left_rr
• soil_heat_flow_5_mv
• lon
• temp_air_right
• soil_heat_flow_2_mv

• temp_trh_top
• time
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• lon
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• lat
• time_offset
• vapor_pressure_top
• home_signal
• vapor_pressure_bottom
• Radiation, net(net_radiation)
• alt
• base_time
• rh_top_fraction
• rh_bottom_fraction
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_air_bottom
• temp_reference
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• vapor_pressure_top
• time
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• surface_soil_heat_flux_1
• soil_moisture_2
• surface_soil_heat_flux_2
• soil_moisture_1
• soil_moisture_4
• soil_moisture_3
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• rh_bottom_fraction
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_5
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• base_time
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• temp_trh_top
• lon
• home_signal_30
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• home_signal_15
• energy_storage_change_1
• Radiation, net(net_radiation)
• lat
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• wdir_vec_std
• soil_heat_capacity_1
• bowen_ratio
• Barometric Pressure(atmos_pressure)
• time_offset
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• alt
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• temp_air_bottom
• temp_reference
• temp_air_top
• rh_top_fraction
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3

SGP/EBBR/E19 - Battery Voltage Drop

EBBR battery voltage at E19, El Reno, OK declined to lower than acceptable
levels after long periods of clouds after initial installation.  The low
voltage condition worsened as Autumn progressed.  In November 1997 the
battery tested okay, but would not hold sufficient capacity at night or
during extended periods of clouds to keep the voltage high enough for the
EBBR to work properly.  At my request, the battery was replaced with a brand
new battery on 31 December 1997.  The new battery is presently maintaining
voltage level at night.

The voltage dropped to 10 volts or less many days before the battery change.
Voltages less than 10.3 volts affected a wide range of measured values, but
at different times.  When the voltage was much below 10 volts the home
signal became very large (several volts), a quirk of the AEM circuitry.
At various times, latent and sensible heat fluxes, soil temperature, air
temperature, relative humidity, vapor pressure, wind direction, soil heat
flux plate output, home signal, and atmospheric pressure (at least) were not
reported correctly by the CR10 datalogger.  At least the sensible and latent
heat fluxes should be considered to be incorrect when the battery voltage is
less than 10.3 volts.  The battery voltage is found in the 15 minute data.

• soil_temp_4_rr
• battery_voltage
• rh_right_mv
• soil_temp_1_rr
• soil_temp_2_rr
• temp_trh_right_rr
• home_signal
• temp_air_left
• atmos_pressure_mv
• soil_temp_3_rr
• rh_left_mv
• wdir_vec_mean_mv
• soil_temp_5_rr
• temp_trh_left_rr
• temp_air_right

• temp_trh_top
• wdir_vec_std
• rh_top_fraction
• rh_bottom_fraction
• temp_trh_bottom
• Barometric Pressure(atmos_pressure)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• vapor_pressure_top
• temp_air_bottom
• home_signal
• vapor_pressure_bottom
• temp_air_top
• Wind speed vector mean(wspd_vec_mean)

• home_signal_15
• vapor_pressure_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• temp_trh_bottom
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• wdir_vec_std
• rh_bottom_fraction
• Wind speed vector mean(wspd_vec_mean)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Barometric Pressure(atmos_pressure)
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• vapor_pressure_bottom
• soil_heat_flow_4
• soil_heat_flow_5
• 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
• corr_soil_heat_flow_5
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3
• home_signal_30

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

"Noisy" sensible and latent heat fluxes often occur during daytime periods
when the net radiation is smaller (less than 150 watts/m2), but this is not
the only condition under which it occurs.  During this condition especially,
the temperature gradient, RH gradient, and thus the vapor pressure
gradient are near zero; this causes the sensible and latent heat flux gradients
to be inaccurately calculated.  Good examples of these conditions occurred
on 28 December 1997 and 6 January 1998.  However, even when there is
substantial net radiation the problem does sometimes occur; good examples of
this are found during daytime or nighttime variously on 1, 2, 3, and 4
January 1998.  The conditions occur more fequently than at other EBBR sites;
they do occur at other EBBR sites, but less frequently.

• net_radiation_mv

• Radiation, net(net_radiation)

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

SGP/EBBR/E19- EBBR Frozen Wind Speed

Wind speed cups were frozen during the indicated time periods. All 5,
15, and 30 minute data values indicated  are incorrect for the periods
listed.

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - 3-Month Check

During EBBR 3 month checks the Automatic Exchange Mechanism is disabled
(reflected by home signals near zero) so that the two aspirator units can be
placed at the same height.  The measurements during these periods 
do not produce correct outputs of bowen ratio (bowen), sensible heat flux
(h), or latent heat flux (e), nor do the air temperature and relative 
humidity measurements indicate correct gradients.  Checks performed before 
or after the AEM is disabled also lead to some incorrect data.  Incorrect 5,
15 minute and half hour data occurs for the period indicated.

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

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

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

SGP/EBBR/E19 - Six-Month Checks

During EBBR 6 month checks (formally called 3 month checks) the Automatic 
Exchange Mechanism is disabled (reflected by home signals near zero) so that
the two aspirator units can be placed at the same height.  The measurements
during these periods do not produce correct outputs of bowen ratio (bowen), 
sensible heat flux (h), or latent heat flux (e), nor do the air temperature
and relative humidity measurements indicate correct gradients.  Checks 
performed just before or after the AEM is disabled also lead to some 
incorrect data.  Incorrect 5, 15 minute and half hour data occurs for the 
period indicated.

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

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

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

SGP/EBBR/E19 - Wind Direction Data Incorrect (revised)

The wind direction sensor was iced stopped by freezing rain, 
resulting in the following values being incorrect:

5 minute:  res_ws, wind_d, sigma_wd
15 minute: mv_wind_d
30 minute: res_ws, wind_d, sigma_wd

• wdir_vec_mean_mv

• wdir_vec_std
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Wind Speed Data Incorrect

The wind speed sensor was iced stopped by freezing rain, 
resulting in the following values being incorrect:

5 minute:  wind_s, res_ws
15 minute: wind_s
30 minute: wind_s, res_ws,

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Wind Speed Data Incorrect

The wind speed sensor was iced stopped by freezing rain, 
resulting in the following values being incorrect:

5 minute:  wind_s, res_ws
15 minute: wind_s
30 minute: wind_s, res_ws,

• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

• Raw data stream - documentation not supported

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E19 - Net Radiation Incorrect

Water in the net radiometer dome made the net radiation data incorrect.
Comparison with surrounding EBBR sites should allow for an approximate
correction of the net radiation data.

• net_radiation_mv

• Radiation, net(net_radiation)

• Radiation, net(net_radiation)

SGP/EBBR/E19 - Incorrect Tref, Tair Data, Bowen Ratio, latent and sensible heat fluxes

All Tref and Tair temperatures, plus bowen ratio, latent heat flux,
and sensible heat flux values are incorrect for this period.  This problem
was caused by mistakenly removing the Tref sensor.

• temp_air_left
• temp_air_right

• temp_reference
• temp_air_bottom
• temp_air_top

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

SGP/EBBR/E19 - Temperature of Left Humidity Probe Incorrect

A poorly seated lead caused the temperature reading from the left humidity
probe to be incorrect. This also affects the calculated vapor pressures,the
Bowen ratio, and the sensible and latent heat fluxes.

The affected values are:

5 minute:  thum_top, thum_bot, vp_top, vp_bot
15 minute: rr_thum_l
30 minute: thum_top, thum_bot, vp_top, vp_bot, bowen, e, h

• temp_trh_left_rr

• temp_trh_bottom
• vapor_pressure_top
• vapor_pressure_bottom
• temp_trh_top

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