SGP/EBBR - EBBR E20 Data Incorrect from SHF #5

something, since the problem began during J-panel changeout the 4/7/99 PM.
At the 7/21/99 PM, the reference temperature was repaired and reseated.  At
that time the SHF #5 data became correct again; the two events are probably
related only in that other connections, including that of the SHF #5, were
probably reseated at the same time.  The report of the PM activity is not
detailed enough to determine the exact causes and fixes.

The incorrect SHF #5 data can be identified by it being an order of 
magnitude larger than the values from the other soil heat flow sensors.

Affected data are:

5 minute:  none
15 minute: mv_hft5
30 minute: shf5, c_shf5, g5, ave_shf, e, h

• 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 - EBBR E20 Thermocouple Data Incorrect

Left and right thermocouple air temperature data are incorrect during the
replacement of the right thermocouple.

Affected data are:

5 minute:  tair_bot, tair_top
15 minute: tai_r, tair_l
30 minute: tair_bot, tair_top, e, h, bowen

• temp_air_top
• temp_air_bottom

• temp_air_right
• temp_air_left

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

SGP/EBBR - EBBR E18 Right Humidity Incorrect

After the 3 December 99 lightning strike, the humidity portion of the 
right T/RH probe drifted downwards at times, causing vapor pressure 
gradients to be incorrectly measured.  Therefore, sensible and latent
heat fluxes were also incorrect.  Since much of the data from the period
is missing (because of latent effects of the lightning strike), little
data is actually affected. 

The affected data values were:

5 minute:  hum_top, hum_bot, vp_top, vp_bot
15 minute: mv_hum_r
30 minute: hum_top, hum_bot, vp_top, vp_bot, bowen, h, e

• rh_right_mv

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

• rh_bottom_fraction
• vapor_pressure_top
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR - EBBR E18 Data Incorrect After Lightning Strike

Immediately after the 3 December 99 lightning strike, all data from this 
EBBR system was incorrect.  The system crashed at the end of this period.

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

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

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

SGP/EBBR - EBBR E18 Much Data Missing After Lightning Strike

On 3 December 99 this EBBR system was struck by lightning.  Much of the 
data from this EBBR system for the stated period is missing.

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

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

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

SGP/EBBR - EBBR E20 Right Air Temperature Incorrect

The right air temperature (thermocouple) output was frequently offscale.
Examination of the 15 minute data will clearly show which times are
affected during the period.

The affected data are:

5 minute:  tair_top, tair_bot
15 minute: tair_r
30 minute: tair_top, tair_bot, bowen, h, e

• temp_air_top
• temp_air_bottom

• temp_air_right

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

SGP/EBBR - EBBR E18 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, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

• Radiation, net(net_radiation)

SGP/EBBR - EBBR E20 Left Air Temperature Incorrect

Left air temperature (thermocouple) was incorrect during part of the period,
thereby affecting top and bottom air temperature.

The affected data and times are:

5 minute:  tair_top (1935 GMT)
15 minute: tair_l (1945 GMT)
30 minute: tair_top, bowen, e, h (2000 GMT)

• temp_air_top

• temp_air_left

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

SGP/EBBR/E18 - EBBR E18 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, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E18 - EBBR E18 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, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_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/E18 - E18 EBBR Data Incorrect

The EBBR data was incorrect during maintenance.

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

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

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

SGP/EBBR/E18 - E18 EBBR Right RH Incorrect

Right RH being incorrect caused a number of calculated measurements to be
incorrect also, including Bowen ratio, and latent and sensible heat fluxes.

• temp_trh_right_rr
• rh_right_mv

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

• rh_bottom_fraction
• vapor_pressure_top
• rh_top_fraction
• vapor_pressure_bottom

SGP/EBBR/E18 - E18 EBBR Thum Right Incorrect

The temperature portion of the right T/RH probe was not working.  Calculated
vapor pressure, Bowen ratio, and sensible and latent heat fluxes were also incorrect.

• temp_trh_right_rr

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

• temp_trh_top
• temp_trh_bottom
• vapor_pressure_top
• vapor_pressure_bottom

SGP/EBBR/E18 - E18 EBBR Data Incorrect

The EBBR data was incorrect while the datalogger was being upgraded/replaced.

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

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

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

SGP/EBBR/E18 - E18 EBBR Data Incorrect

The EBBR data was incorrect just after power was restored.

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

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

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

SGP EBBR E18 - E18 EBBR Wind Direction Frozen

The wind direction sensor was frozen stopped.  The indicated measurements are incorrect as 
a result.

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

SGP EBBR E18 - E18 EBBR Wind Direction Frozen

The wind direction sensor was frozen stopped.  The indicated measurements are incorrect as 
a result.

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

SGP EBBR E18 - E18 EBBR Left Ventilator Fan Not Working

The left ventilator fan was not working.  Some of the indicated measurements may be 
incorrect (under some wind speed and direction conditions, cloud cover, and time of day, some 
of the data may be correct).  The data is therefore described as suspect for the indicated 
period.

• temp_trh_left_rr
• temp_air_left
• rh_left_mv

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

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

SGP EBBR E20 - E20 EBBR Soil Heat Flow #3 Incorrect

Soil Heat Flow #3 was incorrect during the indicated periods.
Average soil heat flux, latent heat flux, and sensible heat
flux were therefore also incorrect.

• soil_heat_flow_3_mv

• corr_soil_heat_flow_3
• soil_heat_flow_3
• 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 - E20 EBBR Right Air T Incorrect

The right air temperature probe was incorrect while
connections for it were checked.  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 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
• 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)
• 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_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 - 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_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 - 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 E20 - E20 EBBR Data Incorrect

Data was incorrect right after a datalogger upgrade.

• 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
• 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 - 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_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 - 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 E18 - E18 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

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

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

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_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
• 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
• 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 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 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
• 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)
• 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
• 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)
• 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
• 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 E18 - E18 EBBR AEM Frozen, Data Incorrect

The AEM was frozen in one position. The  indicated data is incorrect.

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

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

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

SGP EBBR E18 - E18 EBBR Wind Direction Frozen, Data Incorrect

The wind direction sensor was frozen stopped.  
The indicated data is 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)
• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std

SGP EBBR E18 - E18 EBBR Wind Speed Frozen, Data Incorrect

The wind speed sensor was frozen stopped.  The indicated data are 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, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP EBBR E18 - E18 EBBR Right RH Incorrect

The RH portion of the T/RH probe produced incorrect data.
Sensible and latent heat fluxes and the Bowen ratio were
also incorrect.

• temp_trh_right_rr
• rh_right_mv

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

• temp_trh_top
• temp_trh_bottom
• rh_bottom_fraction
• vapor_pressure_top
• rh_top_fraction
• vapor_pressure_bottom

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

SGP/EBBR/E20 - T/RH Check

During the month of November 1994, site operations personnel conducted
field comparisons of the temperature and relative humidity sensors in the
EBBRs and the HMI31 portable T/RH meter (with the removable probe).  As is
reflected in the home signal output, the automatic exchange mechanism was
disabled in order to conduct the checks.

Measurements were taken every 5 minutes, for a half hour each in the
aspirated radiation shields (the HMI31 was inserted into the EBBR aspirated
radiation shield to provide the same aspiration as the EBBR sensors
received).  Measurements of aspirator flow were also recorded.  This
information was provided to the mentor.  The mentor then compared the field
checks with the data recorded by the EBBRs.

The periods of data and data fields that are incorrect because of the checks
are listed below.  Times are those at which the data are reported.


Data Fields
5 minute:  tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot
15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l
30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, bowen, e, h

5 minute:  1520, 1525, 1530, 1535, 1540, 1545, 1550, 1555, 1600,
           1605
15 minute: 1530, 1545, 1600, 1615
30 minute: 1530, 1600, 1630

(EDITOR'S NOTE:  The following analysis refers to all EBBRs installed in Nov 1994)

Results of the T/RH comparisons:
The combined accuracy of the HMI31 and EBBR temperature sensors
(thermocouples or PRTDs) is +/- 0.4 degrees C.  The combined accuracy of the
HMI31 and EBBR RH sensors is +/- 4% for RH less than 80%, and +/- 6% for RH
greater than 80%.  The combined accuracy for each pair of EBBR sensors of
the same type is essentially the same as the quantities stated above.

All of the pairs of EBBR sensors show differences that fall within the
stated combined accuracies.  Although this sounds wonderful, a few of the
differences are close to the combined accuracy, which, because of the small
differences in temperature being measured (normally smaller than the
magnitude of the combined accuracy) could lead to some incorrect estimation
of sensible and latent heat flux.  However, unless there would be substantial
differences of calibration slope of two sensors in a pair, the switching of
height of the sensors every 15 minutes by the automatic exchange mechanism
will remove the offset between the sensors.

The comparisons between the EBBR sensors and the HMI31 T/RH meter showed
much larger differences.  The range of differences were: -2.4 to 0.0 degrees
for the thermocouples, -2.1 to 0.1 degrees for the RH probe PRTDs, and -6.6 to
6.7 percent for the RH sensors.  Six Thermocouples indicated differences from
the HMI31 greater than the combined accuracy.  Seven PRTDs indicated
differences from the HMI31 greater than the combined accuracy.  Four RH
sensors indicated differences from the HMI31 greater than the combined
accuracy.  The temperature differences (for both thermocouples and PRTDs)
were nearly all of one sign; the HMI31 indicated the greater temperature,
which may suggest a bias in the HMI31 temperature measurement, even though
a dozen differences of +/- 0.2 degrees were measured.  Four differences of
zero and only one positive difference (out of 40) were measured.  Thirteen of
the 20 RH differences were positive (HMI31 indicating the lower
RH), with the differences near the level of the combined accuracies being
approximately 50% positive and 50% negative.  It does not appear that the
HMI31 has a RH bias.

Plots of EBBR sensor/HMI31 differences as a function of time from the
installation of the individual sensors (a range of 10 to 30 months in the
field) shows no obvious pattern of sensor drift with time.  This is encouraging.

• 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/E20 - 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 this period, at least,
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 gradients.  Checks performed before or after the AEM
is disabled also lead to some incorrect data.

• 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/E18 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• temp_air_right
• temp_air_left

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

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

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/E18 - Version 6 Produced Noisy Fluxes

Version 6 of the CR10 program produced noisy latent and sensible heat fluxes.  That ended 
on 
March 29 after a recalibration unit was installed with version 8.

• 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/E18 - AEM Hung

The automatic exchange mechanism did not work properly for a number of time periods.  The 
Bowen ratio, latent heat flux, and sensible heat flux were incorrect also during this 
condition.

• temp_air_right
• temp_air_left

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

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

SGP/EBBR/E18 - Soil Heat Flows Incorrect After Calibration Changeout

The soil heat flows were incorrect while the EBBR changeout was being done.

• surface_soil_heat_flux_3
• soil_heat_flow_1
• surface_soil_heat_flux_2
• soil_heat_flow_2
• corr_soil_heat_flow_4
• surface_soil_heat_flux_1
• soil_heat_flow_3
• corr_soil_heat_flow_5
• soil_heat_flow_4
• surface_soil_heat_flux_5
• surface_soil_heat_flux_4
• soil_heat_flow_5
• 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)
• corr_soil_heat_flow_1
• corr_soil_heat_flow_2
• corr_soil_heat_flow_3
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

SGP/EBBR/E18 - Reprocess: Soil Heat Flow #1 Incorrect

Soil Heat Flow 1 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 = (g2 + g3 + g4 + g5)/4

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

h = -(q + e + ave_shf)

• soil_heat_flow_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• surface_soil_heat_flux_1
• 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/E18 - Left Air Temperature Incorrect

The left air temperature was incorrect much of the time, causing the Bowen ratio, sensible 
heat flux, and latent heat flux to be incorrect also.

• temp_air_left

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

• temp_air_bottom
• temp_air_top

SGP/EBBR/E18 - Reference Temperature Incorrect

The reference temperature was incorrect during the checks of the left air temperature 
sensor, leading to all gradient measurements, Bowen ratio, sensible heat flux, latent heat 
flux, soil temperature, and soil moisture measurements being incorrect.

• temp_air_right
• temp_air_left

• soil_temp_1
• soil_moisture_4
• soil_temp_2
• soil_moisture_5
• soil_temp_3
• soil_temp_4
• soil_temp_5
• energy_storage_change_5
• temp_reference
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_1
• energy_storage_change_2
• temp_air_top
• soil_moisture_3
• soil_moisture_2
• soil_moisture_1
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• temp_air_bottom
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• bowen_ratio
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• temp_air_top
• temp_trh_top
• temp_trh_bottom
• temp_air_bottom

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/E18 - Data Incorrect during 6 month checks

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

• temp_air_right
• temp_air_left

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

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

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/E18 - Reprocess: Soil Heat Flow #1 High

Soil Heat Flow #1 measurements were 2X to offscale high
during these periods.

See below for a work-around.

• soil_heat_flow_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• surface_soil_heat_flux_1
• 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/E18 - Reprocess: Soil Heat Flow #4 High

Soil Heat Flow #4 measurements were 2X or offscale high during this 
period when compared with the other soil heat flow measurements.

See below for a work-around.

• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• corr_soil_heat_flow_4
• soil_heat_flow_4
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• surface_soil_heat_flux_4
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)

SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart

Most of the measurements were zero, which normally happens after a 
datalogger restart.  The restart on 11/12/02 occurred after replacement
of soil heat flow #1.

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

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

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

SGP/EBBR/E18 - Data Incorrect After Logger Restart

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.

• surface_soil_heat_flux_3
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_5
• surface_soil_heat_flux_4
• energy_storage_change_5
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_1
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_2
• 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/E18 - 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, 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 - 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/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