SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• Wind speed vector mean(wspd_vec_mean)
• 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)

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

The anemometer was frozen stopped by freezing rain.  Indicated data was incorrect.  The 
end date and time is a guess, based on conditions at surrounding sites (data was missing 
for a few days starting Dec. 27).

• Wind speed vector mean(wspd_vec_mean)
• 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)

SGP/EBBR/E20 - EBBR E20 Wind Speed Iced

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

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

• 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)

SGP/EBBR/E22 - EBBR E22 Wind Speed Iced

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

• 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)

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

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• Wind speed vector mean(wspd_vec_mean)
• 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)

SGP EBBR E22 - E22 EBBR Soil Moisture Lower Than Measurement Capability

The indicated measurements were incorrect because soil moisture dropped below (sometimes 
even negative) the ability of the probes to measure it.

• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• soil_heat_capacity_2
• soil_heat_capacity_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• surface_soil_heat_flux_5

• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_1_r
• soil_moisture_1_rr
• soil_moisture_5_r
• soil_moisture_3_rr
• soil_moisture_4_rr
• soil_moisture_2_r
• soil_moisture_5_rr
• soil_moisture_2_rr

SGP EBBR E22 - E22 EBBR Soil Moisture #3 Lower Than Can Be Measured

The soil moisture was too low to be measured correctly by probe #3.

• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• soil_heat_capacity_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• energy_storage_change_3
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• surface_soil_heat_flux_3
• soil_moisture_3

• soil_moisture_3_rr
• soil_moisture_3_r

SGP EBBR E22 - E22 EBBR Net Radiation Incorrect

Water inside the domes of the net radiometer caused measurements from it to be incorrect.  
Calculated latent and sensible heat fluxes were therefore incorrect also.

• 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 E20 - E20 EBBR Right Air T Incorrect

The right air temperature probe was incorrect frequently.  Inspection of
the right air temperature data will quickly show where it went offscale.
Bowen ratio, sensible heat flux, and latent heat flux were incorrect as a result.

• vapor_pressure_top
• temp_air_top
• temp_air_bottom
• vapor_pressure_bottom

• temp_air_right

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

SGP EBBR E20 - E20 EBBR Soil Temperatures Incorrect

All soil temperatures were incorrect for the indicated period.  
Latent and sensible heat fluxes were therefore incorrect also.

• soil_temp_2_rr
• soil_temp_4_rr
• soil_temp_3_rr
• soil_temp_1_rr
• soil_temp_5_rr

• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• 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)
• energy_storage_change_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• soil_temp_2
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• soil_heat_capacity_1

SGP EBBR E20 - E20 EBBR Data Incorrect During STP #3 Replacement

All data was incorrect during replacement of soil temperature 
probe #3.

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

• Raw data stream - documentation not supported

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_moisture_3_r
• soil_moisture_2_r
• soil_moisture_1_r
• 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
• battery_voltage
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_5_r
• soil_moisture_4_r
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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 E20 - E20 EBBR Data Incorrect After Program Restart

All data was incorrect after a datalogger program restart.

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

• Raw data stream - documentation not supported

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_moisture_3_r
• soil_moisture_2_r
• soil_moisture_1_r
• 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
• battery_voltage
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_5_r
• soil_moisture_4_r
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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 E20 - E20 EBBR Some Data Incorrect

Quantities requiring a starting value were incorrect; sensible and latent heat 
fluxes were therefore incorrect also.

• energy_storage_change_1
• surface_soil_heat_flux_5
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• surface_soil_heat_flux_2
• energy_storage_change_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• 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)

SGP EBBR E25 - E25 EBBR Soil Heat Flow #3 Incorrect

Soil Heat Flow #3 was frequently too small or large negative.
Average soil heat flow, sensible heat flux, and latent heat flux were
also incorrect during these times; these can be re-calculated from the 
remaining correct soil heat flows.

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

• soil_heat_flow_3_mv

SGP EBBR E25 - E25 EBBR Left Aspirator Not Working

The left aspirator unit of the AEM was not working.  Therefore the 
indicated measurements are incorrect.

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

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

• rh_left_mv
• temp_air_left
• temp_trh_left_rr

SGP EBBR E25 - E25 EBBR Soil Heat Flow #1 Incorrect

Soil Heat Flow #1 was always positive and therefore incorrect.
Average soil heat flow, sensible heat flux, and latent heat flux 
were therefore incorrect also.

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

• soil_heat_flow_1_mv

SGP EBBR E20 - E20 EBBR Data Incorrect

The data was incorrect because battery voltage was low.

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

• Raw data stream - documentation not supported

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_moisture_3_r
• soil_moisture_2_r
• soil_moisture_1_r
• 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
• battery_voltage
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_5_r
• soil_moisture_4_r
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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 E20 - E20 EBBR Net Radiation Data Incorrect

The net radiation data was incorrect while the top dome was being replaced.
Sensible and latent heat fluxes are therefore also incorrect.

• Radiation, net(net_radiation)

• 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)

SGP EBBR E20 - E20 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_mean_mv
• soil_moisture_3_r
• soil_moisture_2_r
• soil_moisture_1_r
• 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
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_5_r
• soil_moisture_4_r
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• soil_temp_2
• Barometric Pressure(atmos_pressure)
• 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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
• 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 - E22 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

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

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

SGP EBBR E25 - E25 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

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

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

SGP EBBR E20 - E20 EBBR Soil Temperature #3 Incorrect

The indicated measurements were incorrect while soil temperature probe #3
was not working.

• soil_temp_3_rr

• soil_heat_capacity_3
• energy_storage_change_3
• surface_soil_heat_flux_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• soil_temp_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 E25 - E25 EBBR Wind Direction Incorrect

The wind direction was incorrect at a constant 135 degrees during the indicated period.

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

SGP EBBR E25 - E25 EBBR Wind Direction Incorrect

The wind direction was incorrect at close to 0 degrees during the indicated period.
The sensor was replaced to resolve the problem.

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

SGP EBBR E22 - E22 EBBR 30 Minute Data Incorrect After Missing Data

Complete soil temperature information is not available
when the data is missing for the previous half hour.
Since soil temperature difference with time cannot be 
computed properly, the selected calculated quantities are incorrect.

• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• 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)
• energy_storage_change_1
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• surface_soil_heat_flux_5

SGP EBBR E25 - E25 EBBR Soil Heat Flow #3 Incorrect

The selected measurements and calculated quantities were
incorrect because soil heat flow sensor #3 indicated large
negative soil heat flow.

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

• soil_heat_flow_3_mv

SGP EBBR E25 - E25 EBBR Soil Heat Flow #1 Incorrect

The #1 soil heat flow sensor developed a +60 W m-2 bias
and thus indicated higher soil heat flows than the other
sensors.  This results in slightly higher sensible and latent heat
fluxes than is correct. The sensor was replaced on 2/21/01.

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

• soil_heat_flow_1_mv

SGP EBBR E25 - E25 EBBR Soil Heat Flow #3 Incorrect

Soil heat flow #3 was large negative during the indicated period.

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

• soil_heat_flow_3_mv

SGP EBBR E25 - E25 EBBR Soil Heat Flow #1 Incorrect

Soil heat flow #1 was large negative or large positive during the
indicated period.

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

• soil_heat_flow_1_mv

SGP EBBR E20 - E20 EBBR Soil Heat Flow #2 Incorrect

Broken leads for SHF #2 caused measurements from it to be
incorrect during the indicated period.

• soil_heat_flow_2_mv

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

SGP EBBR E20 - E20 EBBR Battery Voltage Low, Incorrect Data

Some measurements were incorrect because the battery voltage was low.

• soil_temp_2_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• soil_heat_flow_5_mv
• soil_temp_4_rr
• soil_heat_flow_2_mv
• soil_heat_flow_1_mv
• soil_temp_3_rr
• soil_temp_1_rr
• soil_temp_5_rr

• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• energy_storage_change_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• 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)

SGP EBBR E20 - E20 EBBR Battery Voltage Low, Data Incorrect

The indicated data was incorrect because the battery voltage was low.

• soil_temp_2_rr
• soil_heat_flow_3_mv
• soil_heat_flow_4_mv
• soil_heat_flow_5_mv
• soil_temp_4_rr
• soil_heat_flow_2_mv
• soil_heat_flow_1_mv
• soil_temp_3_rr
• soil_temp_1_rr
• soil_temp_5_rr

• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• energy_storage_change_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• 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)

SGP/EBBR/E20 - Reprocess: Soil Temperature #3 Incorrect

During the indicated period, TS #3 was large negative or positive or offscale.
Average soil heat flow, sensible heat flux, and latent heat flux were incorrect
when TS #3 was incorrect. Inspect the 15 and 30 minute TS #3 data to determine 
the times of incorrect data.

• soil_temp_3_rr

• energy_storage_change_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• soil_temp_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 E20 - E20 EBBR Soil Heat Flow #4 Incorrect

The SHF #4 produced large negative values during much of the
period because of a broken lead wire. Inspect the data to 
determine the times of incorrect SHF #4 values.

• soil_heat_flow_4_mv

• corr_soil_heat_flow_4
• surface_soil_heat_flux_4
• soil_heat_flow_4
• 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)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

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

• temp_air_left
• temp_air_right

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

SGP/EBBR/E22 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• vapor_pressure_top
• bowen_ratio
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• temp_air_top
• temp_air_bottom
• temp_trh_top
• 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/E22 - All Measurements Zero

The measurements are often all zero the first period after a CR10 restart, as occurred 
here.

• Raw data stream - documentation not supported

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

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

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

SGP/EBBR/E22 - AEM Hung or High Home Signals

The automatic exchange mechanism hung some times and continued to switch at other times, 
although with high home signal values.  If home signal values are not in the proper 
ranges, the gradient calculation is not performed properly by the CR10 program.  Affected flux 
measurements cannot be recalculated.

• bowen_ratio
• vapor_pressure_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• temp_air_top
• temp_air_bottom
• temp_trh_top
• 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/E25 - Reprocess: Soil Heat Flow #5 Negative Offset

Soil heat flow 5 was either too large negative or negative when it should have been 
positive; the cause of the negative offset is unknown, but is often the result of a failed 
J-panel over-voltage protection device.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:

ave_shf = (g1 + g2 + g3 + g4)/4

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

h = -(q + e + ave_shf)

• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• corr_soil_heat_flow_5
• soil_heat_flow_5
• surface_soil_heat_flux_5
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E20 - AEM Hung

The automatic exchange mechanism frequently hung in one position.  The home signals and 
automated qc in the netcdf data files indicate when this occurred.  Bowen ratio, sensible 
heat flux, and latent heat flux are incorrect for this condition.

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

• temp_air_left
• temp_air_right

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

SGP/EBBR/E20 - Battery Voltage Low

When the battery voltage is below 10.5 volts, most of the measurements are suspect.

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

• Raw data stream - documentation not supported

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(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
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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/E20 - Pressure Almost Constant

During the indicated period the pressure went to an almost constant 102 to 105 kPa.  This 
occurred after the replacement of another sensor.  The incorrect pressure values affect 
the sensible and latent heat flux calculations.

• Barometric Pressure(atmos_pressure)

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

SGP/EBBR/E20 - Reprocess: Soil Heat Flow #3 Incorrect During Sensor Changeout

Soil heat flow #3 measurements were incorrect during it's replacement.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:
    ave_shf = (g1 + g5)/2
    e = -(q + ave_shf)/(1 + bowen)
    h = -(q + e + ave_shf)

Note: during the time period referenced here, soil heat flow #4 and #2 were also
incorrect.  This quality information is documented in D020717.46, D020717.47 and
D020726.1.

• corr_soil_heat_flow_3
• soil_heat_flow_3
• surface_soil_heat_flux_3
• 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)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - Reprocess: Soil Heat Flow #2 Has a Negative Offset

Soil heat flow #2 measurements had a negative offset.  Negative values were too small and 
negative values occurred when positive values should have.  This can occur when there is 
a poor wire connection or a J-panel over-voltage protection device has failed.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:
   ave_shf = (g1 + g3 + g4 + g5)/4
   e = -(q + ave_shf)/(1 + bowen)
   h = -(q + e + ave_shf)

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

SGP/EBBR/E20 - Reprocess: Soil Heat Flow #4 Incorrect

Soil heat flow #4 was incorrect because it's wires were loose from the connection 
terminals.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:
   ave_shf = (g1 + g2 + g3 + g5)/4
   e = -(q + ave_shf)/(1 + bowen)
   h = -(q + e + ave_shf)

• corr_soil_heat_flow_4
• surface_soil_heat_flux_4
• soil_heat_flow_4
• 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)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - Measurements Zero

Most measurements were zero during the indicated periods.  This often happens for the 
first reported data time after a CR10 datalogger restart.

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

• Raw data stream - documentation not supported

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(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
• battery_voltage
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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/E20 - Reprocess: Soil Temperature #3 Incorrect

Soil temperature 3 was incorrect during the indicated periods.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:

ave_shf = (g1 + g2 + g4 + g5)/4

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

h = -(q + e + ave_shf)

• energy_storage_change_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• soil_temp_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/E20 - Measurements Incorrect During Sensor Changeout

The replacement of soil heat flow 2 caused the loss of initial soil temperature values 
used in the calculation of CES, G, C, ave_shf, bowen, e, and h.

• energy_storage_change_1
• surface_soil_heat_flux_5
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• surface_soil_heat_flux_2
• energy_storage_change_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• 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)
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• soil_heat_capacity_1

SGP/EBBR/E20 - Measurements Incorrect

Many measurements were incorrect because of the lack of an initial 15 minute value to use 
for gradient or soil change of energy storage calculations.

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

• Raw data stream - documentation not supported

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(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
• battery_voltage
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_4_rr
• soil_heat_flow_5_mv
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• soil_temp_2
• Barometric Pressure(atmos_pressure)
• 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• soil_moisture_2
• Wind speed vector mean(wspd_vec_mean)
• soil_moisture_1
• surface_soil_heat_flux_5
• 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/E20 - Reprocess: Soil Heat Flow #2 and #4 incorrect

Soil heat flow #2 measurements had a negative offset.  Negative values were too small and 
negative values occurred when positive values should have.  This can occur when there is 
a poor wire connection or a J-panel over-voltage protection device has failed.

Soil heat flow #4 was incorrect because it's wires were loose from the connection
terminals.

Average soil heat flow, sensible heat flux, and latent heat flux were affected;
these can be recalculated using the remaining good sets of soil sensors as follows: 
    ave_shf = (g1 + g3 + g5)/3
    e = -(q + ave_shf)/(1 + bowen)
    h = -(q + e + ave_shf)

• corr_soil_heat_flow_4
• surface_soil_heat_flux_2
• soil_heat_flow_2
• surface_soil_heat_flux_4
• soil_heat_flow_4
• 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)
• corr_soil_heat_flow_2
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the 
EBBR 30 minute netcdf header have been incorrect from the beginning 
of processing the data into netcdf files.  The correct units are 
MJ/m^3/C.

This does not affect the data quality.

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_4

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1

• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• soil_heat_capacity_3
• soil_heat_capacity_4

• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_4
• soil_heat_capacity_3

• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5

• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1

• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_1

• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_1

SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4,
cs5) in the EBBR 30 minute netcdf header have been 
incorrect from the beginning of processing the data
into netcdf files.  The correct units are MJ/m^3/C.
   
This does not affect the data quality.

(NOTE: The actual begin date of some of these data streams
 is as early as 7/4/93.  This DQR applies to all 30m EBBR
 data.)

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• soil_heat_capacity_3
• soil_heat_capacity_4

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5

• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1

• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2

• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_1

• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_1

SGP/EBBR/E20 - Data Incorrect during 6 month checks

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

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

• temp_air_left
• temp_air_right

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

SGP/EBBR/E22 - Data Incorrect during 6 month checks

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

• bowen_ratio
• vapor_pressure_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• temp_air_top
• temp_air_bottom
• temp_trh_top
• 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/E20 - Data Zero following logger restarts

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

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

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(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
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_4_rr
• soil_heat_flow_5_mv
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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/E20 - REPROCESS: Soil Temperature #2 Incorrect

Soil Temperature #2 was incorrect, apparently
from am loose wire after replacement of the EBBR unit.
The indicated measurements that are calculated using 
soil temperature are also incorrect.

See the work-around below.

• energy_storage_change_2
• surface_soil_heat_flux_2
• 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)
• soil_temp_2
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - Change of Energy Storage Incorrect

Because soil temperature measurements were not available 
from the beginning of the half hour, the change in soil 
energy storage could not be calculated and thus is 
incorrect.

There is no fix to this problem. Average Soil Heat Flow, 
Sensible Heat Flux (h), and Latent Heat Flux (e) can not 
be calculated using the available, remaining measurements.

• energy_storage_change_1
• surface_soil_heat_flux_5
• energy_storage_change_3
• energy_storage_change_2
• surface_soil_heat_flux_2
• energy_storage_change_5
• energy_storage_change_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• soil_temp_2
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)

SGP/EBBR/E20 - Battery voltage low

When Battery Voltage drops below 10.5 volts, most 
measurements are suspect and some are often incorrect.

The user will need to inspect the data carefully to 
determine the useability of the data.

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

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(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
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_4_rr
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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/E20 - Wind speed and direction frozen

Wind Speed and Dierction were frozen in place by an ice storm.

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

• 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 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)

SGP/EBBR/E22 - AEM Hung between home positions

When the AEM (Automatic Exchange Mechanism) is hung 
inbetween home positions, the gradients of temperature and 
relative humidity, and thus sensible and latent heat fluxes, 
are incorrect.

There is no work-around to this problem.

• bowen_ratio
• vapor_pressure_top
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• temp_air_top
• temp_air_bottom
• temp_trh_top
• 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/E22 - Water inside Broken Net Rad Dome

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

No work-around is possible for this situation.

• 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)

SGP/EBBR/E20 - AEM Hung between Home Positions

When the AEM (Automatic Exchange Mechanism) is hung 
inbetween home positions, the gradients of temperature and 
relative humidity, and thus sensible and latent heat fluxes, 
are incorrect.

There is no work-around to this problem.

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

• temp_air_left
• temp_air_right

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

SGP/EBBR/E20 - REPROCESS: Heat Flow #3 and #5 Incorrect

Soil Heat Flow #3 was incorrect because part of the lead
wire was cut; apparent vandalism.

Soil Heat Flow #5 had been incorrect because of other
causes, but was replaced at the same time as #3.

• surface_soil_heat_flux_5
• corr_soil_heat_flow_5
• corr_soil_heat_flow_3
• soil_heat_flow_3
• soil_heat_flow_5
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_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/E20 - Data incorrect during instrument maintenance

Most of the data was incorrect just after the EBBR unit was replaced.

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

• atmos_pressure_mv
• Wind speed, lower, 1-min avg(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
• battery_voltage
• temp_air_left
• rh_right_mv
• temp_air_right
• soil_moisture_2_rr
• soil_temp_2_rr
• home_signal
• soil_temp_3_rr
• temp_trh_right_rr
• soil_moisture_4_rr
• soil_heat_flow_5_mv
• soil_temp_4_rr
• 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, lower, 1-min avg(wspd_arith_mean)
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• Barometric 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)
• temp_trh_bottom
• wdir_vec_std
• 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
• 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/E20 - REPROCESS: Soil Heat Flow #5 Incorrect

Soil Heat Flow #5 was incorrect during these periods. 
 
See below for a work-around.

• surface_soil_heat_flux_5
• corr_soil_heat_flow_5
• soil_heat_flow_5
• 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)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - REPROCESS: Soil Temperature #1 Incorrect

Soil Temperature #1 was intermittently incorrect.
The cause is unknown. The indicated measurements 
that are calculated using soil temperature are 
also incorrect.

• energy_storage_change_1
• surface_soil_heat_flux_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)
• soil_temp_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - REPROCESS: Soil Temperature #3 Incorrect

Soil Temperature #3 was incorrect.
The cause is apparently vandalism; the probe leads were cut. 
The indicated measurements that are calculated using soil 
temperature are also incorrect.

DQR D030117.19 already provides the work-around for
calculating correct sensible (h) and latent heat (e) fluxes,
as soil heat flow #3 and soil heat flow #5 were also incorrect
during this period.  That work-around is repeated below.

• energy_storage_change_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• soil_temp_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/E20 - Resistance-based Measurements Incorrect

When the Reference Temperature in the EBBR 
enclosure is not reported correctly, it
affects all resistance-based measurements
that are adjusted with the temperature of 
the reference junction.

No work-around is possible for this situation.

• temp_air_top
• temp_air_bottom

• temp_air_left
• temp_air_right

• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• temp_air_top
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• energy_storage_change_1
• energy_storage_change_3
• energy_storage_change_2
• temp_air_bottom
• energy_storage_change_5
• energy_storage_change_4
• soil_temp_3
• soil_temp_4
• soil_temp_5
• soil_temp_1
• soil_temp_2
• temp_reference
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)

SGP/EBBR/E20 - REPROCESS: Net Rad Coefficients Incorrect

The Net Radiometer coefficients were incorrect in the CR10
program when the replacement EBBR unit was installed on
08/09/02.

The data can be easily corrected; see the Suggestion area below.

• 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/E20 - REPROCESS: Soil Temperature #1 and Soil Heat Flow #5 Incorrect

Soil Temperature #1 and Soil Heat Flow #5 were incorrect
during these periods. The indicated calculated measurements
are also incorrect.

• energy_storage_change_1
• surface_soil_heat_flux_5
• corr_soil_heat_flow_5
• surface_soil_heat_flux_1
• soil_heat_flow_5
• 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)
• soil_temp_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E25 - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the 
EBBR 30 minute netcdf header have been incorrect from the beginning 
of processing the data into netcdf files.  The correct units are 
MJ/m^3/C.

This does not affect the data quality.

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5

SGP/EBBR/E25  - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4,
   cs5) in the EBBR 30 minute netcdf header have been 
   incorrect from the beginning of processing the data
   into netcdf files.  The correct units are MJ/m^3/C.
   
   This does not affect the data quality.

(NOTE: The actual begin date of some of these data
streams is as early as 5/22/97.  This DQR applies to
all 30m EBBR data.)

• cs1
• cs2
• cs5
• cs4
• cs3

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5

SGP/EBBR/E20 - RHtop Zero

The RHtop value in the 30 minute file is zero.  5 and 15 minute files show RHtop 
correctly. This behavior has been seen infrequently and can probably be attributed to a CR10 
communication error.

No other data, including the fluxes, are affected.

• rh_top_fraction

SGP/EBBR/E22 - home30 too large

The home30 measurements sometimes exceeded 34.9999, resulting in the
qc flag being set.

However, this does not create any data quality issues.  The qc flag is
set just to provide an alert that the automatic exchange mechanism may have a problem; in 
this case data was not affected.

An electronics repair solved the problem.

• home_signal_30

• home_signal

• home_signal

SGP/EBBR/E20 - Soil Heat Flow#5 Incorrect

Soil Heat Flow #5 was producing incorrect values.  Average soil heat flow, sensible heat 
flux, and latent heat flux were affected.

• soil_heat_flow_5_mv

• surface_soil_heat_flux_5
• corr_soil_heat_flow_5
• soil_heat_flow_5
• 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)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20 - Soil Storage Incorrect After Startup

For the half hour data after CR10 datalogger startup, stored soil temperature values do 
not exist from the beginning of the half hour.  Therefore soil heat storage can not be 
calculated correctly.

This affects numerous measurements that are calculated using soil heat storage.

• energy_storage_change_1
• surface_soil_heat_flux_5
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• surface_soil_heat_flux_2
• energy_storage_change_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_3
• 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)

SGP/EBBR/E20 -  6 Month Checks

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

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

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

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

SGP/EBBR/E22 -  6 Month Checks

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

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

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

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

SGP/EBBR/E22 - AEM Hung Inbetween Home Positions

The AEM was hung inbetween home positions.

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

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

SGP/EBBR/E22 - AEM Home Signals Too High

The AEM home signals were too large at times during the indicated period;
it has been determined by the vendor that this is usually caused by electrical noise in 
the vicinity. When the 30 minute data shows a home 30 signal of 35 or more, the bowen 
ratio, and sensible and latent heat flux 
measurements are incorrect 

Removing the jumper between 4L and AG on the CR10 and adding a jumper to Multiplexer 2, 
Set 6, between L1 and L2 fixed the problem.  The
vendor intends to make this modification to all EBBR systems as they return
for re-calibration.

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

SGP/EBBR/E20 - Fuse Blown in AEM

When the EBBR system restarted on 15 Oct. 2003, the AEM
malfunctioned.  Surface fluxes data during this period
are incorrect.

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

• temp_air_left
• temp_air_right

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

SGP/EBBR/E20 - Reprocess: Soil Temperature Probe #1 Measurements Spiked

The soil temperature #1 measurement spiked quite high at times.

This affected a number of measurements that are dependent on the 
soil temperature measurements.

• soil_temp_1_rr

• energy_storage_change_1
• surface_soil_heat_flux_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)
• soil_temp_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E20  - Water in Net Radiometer, Surface Fluxes 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.

• Radiation, net(net_radiation)

• 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)

SGP/EBBR/E22  - Water in Net Radiometer, Surface Fluxes 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.

• 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/E20 - 6 Month Checks

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

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

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

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

SGP/EBBR/E22 - 6 Month Checks

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

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

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

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

SGP/EBBR/E20 - Wind Direction Incorrect

Wind direction is incorrect, reading at or about 0 or 15 to 25 degrees.

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

• wdir_vec_mean_mv

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

SGP/EBBR/E20 - Pressure Sensor Data Incorrect

The E20 pressure sensor suffered
from spikes in pressure, which were related to 
increases in voltage during the day as the 
solar panels charged the battery.  These spikes
were not of a magnitude that would affect the 
30 minute surface fluxes.

Replacement of the pressure sensor solved the problem.

• Barometric Pressure(atmos_pressure)

• atmos_pressure_mv

• Barometric Pressure(atmos_pressure)

SGP/EBBR/E20  - Wind Speed Sensor Frozen By Ice Storm

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

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

• 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)

SGP/EBBR/E22  - Wind Speed Sensor Frozen By Ice Storm

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

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