SGP/EBBR - EBBR E13 Left Aspirator Not Working

A loss of the 12V DC power to the left aspirator caused it to stop
operating.  The affected measurements are:

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, h, e

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR - EBBR E13 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

• net_radiation

• sensible_heat_flux
• net_radiation
• latent_heat_flux

SGP/EBBR/E13 - failure of sensors

A lightning strike to the central cluster area shortly after 0800 GMT
on July 17 caused failure of several EBBR sensors: both humidity probes,
the barometer, soil heat flux #3, soil moisture # 1 and the wind
direction.
These failed sensors caused sensible, latent, and average soil heat flux
to be incorrect until site operations performed maintenance on July 24th.

Site Operations found a loose connection from soil moisture probe #1, 
removed barometer SN 6578 and replaced it with SN 6507, removed soil heat 
flux sensor #3 with SN 923022 and replaced it with SN 933199, repositioned 
the wind direction sensor - which was rotated approximately ninety degrees 
clockwise from its proper position, and removed the right humidity probe 
SN 460412 and replaced it with SN 460428.

• null(Raw data stream - documentation not supported)

• rh_left_mv
• temp_trh_left_rr

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13 - Failed Right Humidity Probe

A lightning strike to the central cluster area on 17 July 1995 caused
failure of several EBBR sensors including the right humidity probe.
On July 24th, site operations removed the right humidity probe SN 460412 and 
replaced it with SN 460428

In less than a day the right humidity probe output soared to over 113% and
has hovered around 112% since.  I consider all right probe values to be
incorrect due to this behavior.

Without a properly functioning right humidity probe, all values of top and
bottom relative humidity, top and bottom vapor pressure, Bowen
ratio, and latent and sensible heat fluxes are incorrect.

A working spare relative humidity probe was not available at that time.
The probe was replaced with a working, calibrated probe on 22 September 1995
at about 2108 GMT.  I have the examined the data since the day of the
replacement and find that the new probe is working well.  All E13 EBBR
measurements are presently correct.  The old probe S/N was 460428, the new
S/N is 460413.

• null(Raw data stream - documentation not supported)

• temp_trh_right_rr
• rh_right_mv

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13- Left humidity probe replaced

A lightning strike to the central cluster area on 17 July 1995 caused the
left humidity probe to fail.  Some of the period of incorrect data has been
 discussed in D0000531.4.  The left humidity probe was replaced on 25 July 
1995 at 1925 GMT (old SN 460413, new SN 460435).

• null(Raw data stream - documentation not supported)

• rh_left_mv
• temp_trh_left_rr

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect

The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions.  
Incorrect Bowen ratio, and latent and sensible heat fluxes resulted.

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Low battery voltage caused all data to be incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Low battery voltage caused all data to be incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

All data was incorrect for an unknown reason.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR Heat Capacities Incorrect

The soil heat capacities were incorrect, a result of the missing data from the previous 
half hour.

• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data were incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect

The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions.  
Incorrect Bowen ratio, and latent and sensible heat fluxes resulted.

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect

The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions.  
Incorrect Bowen ratio, and latent and sensible heat fluxes resulted.

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR All Data Incorrect

Battery voltage was too low.  All data was incorrect.

• home_signal
• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• temp_air_left
• wspd_arith_mean
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect

The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions.  
Incorrect Bowen ratio, and latent and sensible heat fluxes resulted.

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect

The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions.  
Incorrect Bowen ratio, and latent and sensible heat fluxes resulted.

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - E13 EBBR Flux Data Incorrect

The Automatic Exchange Mechanism was stuck inbetween the top and bottom positions.  
Incorrect Bowen ratio, and latent and sensible heat fluxes resulted.

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - E13 EBBR Soil Temperature #4 Suspect

Soil Temperature #4 produced noisy measurements, resulting in quantities
calculated from it to be of suspect quality.  This condition normally 
occurred early in the GMT day.  Sensible (h) and latent (e) heat fluxes
were not normally greatly affected.  Average surface heat flow was normally
slightly underestimated.

• soil_temp_4_rr

• sensible_heat_flux
• surface_soil_heat_flux_4
• soil_heat_capacity_4
• energy_storage_change_4
• soil_temp_4
• surface_soil_heat_flux_avg
• latent_heat_flux

SGP/EBBR/E13 - E13 EBBR Wind Direction Iced

The wind direction sensor was iced stopped for the indicated period.

• wdir_vec_mean_mv

• wdir_vec_mean
• wdir_vec_std
• wspd_vec_mean

• wspd_vec_mean
• wdir_vec_std
• wdir_vec_mean

SGP/EBBR/E13 - E13 EBBR Soil Heat Flow #4 Incorrect

Soil Heat Flow #4 was large positive or negative, but always
incorrect during the indicated period. This resulted in overestimates
or underestimates of laetnt and sensible heat fluxes and average
soil heat flow.

• soil_heat_flow_4_mv

• sensible_heat_flux
• soil_heat_flow_4
• surface_soil_heat_flux_4
• corr_soil_heat_flow_4
• surface_soil_heat_flux_avg
• latent_heat_flux

SGP EBBR E13 - E13 EBBR Soil T #4 Incorrect

Soil Temperature #4 floated around, causing average soil heat flow
to sometimes be too small (resulting too small a sensible heat flux and
too large a latent heat flux) or too large (resulting in too large a 
sensible heat flux and too small a latent heat flux).  Investigation of
g4 will indicate when these conditions occurred and the likely effect on
sensible and latent heat fluxes.

• soil_temp_4_rr

• sensible_heat_flux
• surface_soil_heat_flux_4
• energy_storage_change_4
• soil_temp_4
• surface_soil_heat_flux_avg
• latent_heat_flux

SGP EBBR E13 - E13 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

• soil_temp_4_rr
• temp_air_right
• soil_heat_flow_1_mv
• soil_temp_1_rr
• soil_heat_flow_4_mv
• atmos_pressure_mv
• soil_moisture_4_r
• temp_reference_rr
• soil_moisture_2_r
• soil_moisture_1_rr
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• soil_moisture_4_rr
• temp_air_left
• wspd_arith_mean
• soil_moisture_3_rr
• net_radiation_mv
• soil_heat_flow_2_mv
• soil_moisture_1_r
• temp_trh_left_rr
• soil_moisture_5_rr
• soil_moisture_5_r
• soil_heat_flow_3_mv
• soil_temp_3_rr
• soil_temp_2_rr
• soil_moisture_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• soil_moisture_3_r
• rh_right_mv

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_heat_flow_2
• soil_moisture_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - Reprocess: E13 EBBR Soil heat Flows #1 and #2 Incorrect

Soil Heat Flow probes #1 and #2 were incorrect during the
indicated period (and for some time afterward, to be covered in another
DQR).  Outputs from the probes were typically too large negative or 
too large positive.

• soil_heat_flow_2_mv
• soil_heat_flow_1_mv

• soil_heat_flow_2
• sensible_heat_flux
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• soil_heat_flow_1
• latent_heat_flux

SGP EBBR E13 - E13 EBBR Data Incorrect

The 5 and 15 minute data was zero and thus the thirty minute data was
also incorrect.  This occurs after the restart of an EBBR system, in
this case after a recalibration unit changeout.

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

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect

The left T/RH Probe Temperature was often incorrect, causing the other indicated
measurements to be incorrect also.

• temp_trh_left_rr

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• temp_trh_bottom
• latent_heat_flux

SGP EBBR E13 - E13 EBBR Left T/RH Probe Temperature Incorrect

The left T/RH Probe Temperature was often incorrect, causing the other indicated
measurements to be incorrect also.  

When the home30 signal had an offset, the top RH probe temperature was incorrect
but not the bottom RH probe temperature.

• temp_trh_left_rr

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• latent_heat_flux

SGP EBBR E13 - E13 EBBR AEM in Mid Position

The AEM stopped before reaching the end of it's travel,
causing the home signals to be between 0 and 3 during 
much of this period (therefore the data is colored yellow).  

All gradient data, sensible heat flux, latent heat flux,
and the Bowen ratio are incorrect during this condition.

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP EBBR E13 - E13 EBBR AEM Home 30 Offset

The AEM home30 signal is offset by approximately 25;
it appears that the electronics of the AEM is adding
the home15 and home30 voltages together when the AEM is
in the home30 position.

All gradient data, sensible heat flux, latent heat flux,
and the Bowen ratio are incorrect during this condition.

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP EBBR E13 - E13 EBBR AEM Home 30 Offset or AEM in Mid Position

The AEM stopped before reaching the end of it's travel,
causing the home signals to be between 0 and 3 during 
part of this period.

The AEM home30 signal is offset by approximately 25 
during part of this period; it appears that the electronics 
of the AEM is adding the home15 and home30 voltages 
together when the AEM is in the home30 position.

All gradient data, sensible heat flux, latent heat flux,
and the Bowen ratio are incorrect during these conditions.

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect

This condition occurred most of the time during the 
indicated period (hence color yellow).

The left air temperature was incorrect only when the AEM
was in the home 30 position.  This only affected the bottom
air temperature calculation.  However, it made the latent
heat flux, sensible heat flux, and Bowen ratio incorrect.

The sensor was improperly inserted into the aspirator shield
and was pinched between the shield and the T/RH probe. When
the AEM was in the home30 position, the aspirator hose
position may have caused the sensor to short to ground.

• temp_air_left

• temp_air_bottom

• sensible_heat_flux
• temp_air_bottom
• bowen_ratio
• latent_heat_flux

SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect

This condition occurred most of the time during the 
indicated period (hence color yellow).

The left air temperature was incorrect only when the AEM
was in the home 30 position.  This only affected the bottom
air temperature calculation.  However, it made the latent
heat flux, sensible heat flux, and Bowen ratio incorrect.

The sensor was improperly inserted into the aspirator shield
and was pinched between the shield and the T/RH probe. When
the AEM was in the home30 position, the aspirator hose
position may have caused the sensor to short to ground.

• temp_air_left

• temp_air_bottom

• sensible_heat_flux
• temp_air_bottom
• bowen_ratio
• latent_heat_flux

SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect

Soil Temperature #4 was often incorrect, typically too large negative,
during this period, causing other measurements calculated with
it to be incorrect also. This was caused by a bad multiplexor channel,
which was discovered by the vendor during recalibration of the unit
later.

• soil_temp_4_rr

• sensible_heat_flux
• surface_soil_heat_flux_4
• energy_storage_change_4
• soil_temp_4
• surface_soil_heat_flux_avg
• latent_heat_flux

SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect

Soil Temperature #4 was often incorrect, typically too large negative,
during this period, causing other measurements calculated with
it to be incorrect also. This was caused by a bad multiplexor channel,
which was discovered by the vendor during recalibration of the unit
later.

• soil_temp_4_rr

• sensible_heat_flux
• surface_soil_heat_flux_4
• energy_storage_change_4
• soil_temp_4
• surface_soil_heat_flux_avg
• latent_heat_flux

SGP/EBBR/E13 - Left T/RH Probe Temperature Incorrect

During much of the indicated period the Left T/RH Temperature was
incorrect.  Because the home signal was between 0 and 3, the 
temperature was incorrect when the AEM was at the bottom position,
but was correct when the AEM was at the top position.  This was caused by
a short created when the sensor was mispositioned in the aspirator
housing and enough strain on the cable for it to bring it into contact
with the housing in the bottom position.

• temp_trh_left_rr

• temp_trh_bottom
• vapor_pressure_bottom

• vapor_pressure_bottom
• sensible_heat_flux
• bowen_ratio
• temp_trh_bottom
• latent_heat_flux

SGP/EBBR/E13 - Left Humidity Probe Temperature Incorrect

The left humidity probe temperature was incorrect
much of the time, as was the top humidity temperature and
vapor pressure.

• temp_trh_left_rr

• temp_trh_top
• vapor_pressure_top

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• vapor_pressure_top
• latent_heat_flux

SGP/EBBR/E13 - Data incorrect during maintenance

The 5, 15, and 30 minute measurements were zero or
offscale at 2200 GMT only.  Electronic connections
were being checked at that time.

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

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - Data Incorrect During 6 Month Checks

The measurements were incorrect during the 6 month checks.

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

• temp_air_top
• rh_bottom_fraction
• vapor_pressure_top
• wdir_vec_std
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_trh_bottom
• temp_reference
• temp_trh_top
• wspd_vec_mean
• net_radiation
• rh_top_fraction
• vapor_pressure_bottom
• home_signal
• temp_air_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• corr_soil_heat_flow_5
• energy_storage_change_5
• corr_soil_heat_flow_2
• latent_heat_flux
• corr_soil_heat_flow_1
• wdir_vec_mean
• soil_heat_flow_1
• soil_moisture_1
• soil_heat_flow_3
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_3
• energy_storage_change_3
• soil_moisture_4
• energy_storage_change_2
• vapor_pressure_top
• home_signal_15
• wspd_arith_mean
• net_radiation
• temp_trh_bottom
• home_signal_30
• temp_air_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• Barometric Pressure(atmos_pressure)
• temp_reference
• soil_heat_capacity_1
• soil_temp_2
• soil_heat_capacity_5
• soil_temp_1
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• rh_top_fraction

SGP/EBBR/E13 - 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:  2005, 2010, 2015, 2020, 2025, 2030, 2035, 2040, 2045,
           2050, 2055, 2100, 2105
15 minute: 2015, 2045, 2100, 2115
30 minute: 2030, 2100

(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.

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13 - 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.

Time of the check is not known, so the entire day has been flagged as
suspect.

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• temp_air_right
• temp_air_left

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - Reprocess: Soil Heat Flow #1 Incorrect

Soil Heat Flow #1 was incorrect during the indicated period.

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)

• sensible_heat_flux
• surface_soil_heat_flux_1
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_1
• soil_heat_flow_1
• latent_heat_flux

SGP/EBBR/E13 - Reprocess: Soil Heat Flow #2 Incorrect

Soil Heat Flow #2 was incorrect during the indicated period.

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)

• soil_heat_flow_2
• sensible_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_2
• latent_heat_flux

SGP/EBBR/E13 - Wrong CR10 Program Installed

An old version 4 program was installed on 5 Oct 01 instead of the correct version 8 
program.
All of the indicated measurements are suspect.

• null(Raw data stream - documentation not supported)

• soil_moisture_1_rr
• wdir_vec_mean_mv
• rh_left_mv
• soil_temp_5_rr
• soil_moisture_4_rr
• temp_air_left
• soil_temp_4_rr
• temp_air_right
• wspd_arith_mean
• soil_moisture_3_rr
• net_radiation_mv
• soil_heat_flow_1_mv
• soil_heat_flow_2_mv
• soil_temp_1_rr
• temp_trh_left_rr
• soil_moisture_5_rr
• soil_heat_flow_4_mv
• soil_heat_flow_3_mv
• soil_temp_3_rr
• atmos_pressure_mv
• soil_temp_2_rr
• soil_moisture_2_rr
• temp_trh_right_rr
• soil_heat_flow_5_mv
• temp_reference_rr
• rh_right_mv

• temp_air_top
• temp_reference
• temp_trh_top
• wspd_vec_mean
• rh_bottom_fraction
• net_radiation
• rh_top_fraction
• vapor_pressure_top
• wdir_vec_std
• vapor_pressure_bottom
• Barometric Pressure(atmos_pressure)
• wdir_vec_mean
• temp_air_bottom
• temp_trh_bottom
• wspd_arith_mean

• wspd_vec_mean
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• energy_storage_change_4
• energy_storage_change_5
• corr_soil_heat_flow_5
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• latent_heat_flux
• temp_air_bottom
• wdir_vec_mean
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• temp_air_top
• temp_trh_top
• soil_heat_flow_1
• soil_heat_flow_3
• soil_moisture_1
• soil_moisture_2
• soil_heat_flow_2
• soil_heat_flow_5
• soil_heat_flow_4
• energy_storage_change_1
• soil_moisture_5
• energy_storage_change_3
• soil_moisture_3
• energy_storage_change_2
• soil_moisture_4
• Barometric Pressure(atmos_pressure)
• temp_reference
• vapor_pressure_top
• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_temp_2
• soil_heat_capacity_4
• soil_temp_1
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_temp_5
• soil_temp_4
• soil_temp_3
• wspd_arith_mean
• wdir_vec_std
• bowen_ratio
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• rh_bottom_fraction
• vapor_pressure_bottom
• net_radiation
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13 - Wind Direction Incorrect

The wind direction and sigma_wd was near zero for the indicated times.

• wdir_vec_mean
• wdir_vec_std
• wspd_vec_mean

• wspd_vec_mean
• wdir_vec_std
• wdir_vec_mean

SGP/EBBR/E13 - AEM Hung up

The automatic exchange mechanism hung numerous times, but with various different 
measurements of home signals.  In all cases, temperature and humidity gradients were incorrect; 
thus the Bowen ratio, sensible heat flux, and latent heat flux are incorrect for the 
indicated periods.  Even when the home 15 and 30 signals were different (but too high) the 
measurements were incorrect because the program keys off of the home signals, which must be 
in the proper ranges.

• temp_air_right
• temp_air_left

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - Thermocouple out of range, data incorrect

The left thermocouple temperature for 22 December was out of range
between 2030 and 2130 GMT, yielding incorrect values as listed below:

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

• temp_air_left

• temp_air_top
• temp_air_bottom

• sensible_heat_flux
• temp_air_bottom
• bowen_ratio
• temp_air_top
• latent_heat_flux

SGP/EBBR/E13 - Reprocess: Soil Heat Flow #1 and #2 Incorrect

Soil Heat Flow #1 and #2 were incorrect during the indicated period.

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 = (g3 + g4 + g5)/3
   e = -(q + ave_shf)/(1 + bowen)
   h = -(q + e + ave_shf)

• soil_heat_flow_2
• sensible_heat_flux
• surface_soil_heat_flux_1
• surface_soil_heat_flux_2
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• soil_heat_flow_1
• 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/E13 - Data Incorrect during 6 month checks

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

• temp_air_right
• temp_air_left

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - Wind Speed Stalling at Low Speeds

Perhaps because of excessive bearing wear, the wind speed sensor
had a high starting threshhold with wind speeds below about 2 m/s.
Wind speed measurements at all speeds were probably too low.

• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

SGP/EBBR/E13 - REPROCESS: Soil Moisture #1 Offset1

The wrong offset (1.4656) was used in the calibration coefficients for
Soil Moisture Probe #1. The correct offset is 14.656.

Sensible and Latent Heat Flux measurements are not significantly affected.

• soil_moisture_1

SGP/EBBR/E13 - AEM Jung 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.

• temp_air_right
• temp_air_left

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 -  6 Month Checks

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

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13  - Water In Net Radiometer; Surface Fluxes are Incorrect

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

• net_radiation_mv

• net_radiation

• sensible_heat_flux
• net_radiation
• latent_heat_flux

SGP/EBBR/E13  - 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.

• net_radiation_mv

• net_radiation

• sensible_heat_flux
• net_radiation
• latent_heat_flux

SGP/EBBR/E13 - 6 Month Checks

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

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13  - 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.

• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

SGP/EBBR/E13  - Net Radiometer Iced Over During Storm

The net radiometer was covered with ice from a storm.  Net radiation values are incorrect, 
and are sometimes even negative during the daytime.  Sensible and latent heat fluxes are 
therefore incorrect.

• net_radiation_mv

• net_radiation

• sensible_heat_flux
• net_radiation
• latent_heat_flux

SGP/EBBR/E13  - Wind Speed Frozen Stopped By Ice

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

The wind speed and residual wind speed measurements are incorrect.

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

• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

SGP/EBBR/E13  - Wind Direction Frozen Stopped By Ice

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

• wdir_vec_mean
• wdir_vec_std
• wspd_vec_mean

• wspd_vec_mean
• wdir_vec_std
• wdir_vec_mean

SGP/EBBR/E13 - Automatic Exchange Mechanism Failure

The AEM was stuck in the home_15 position or reported near zero
home signals during much of the indicated period.

The Bowen ratio and latent and sensible heat fluxes were incorrect 
when the AEM was not operating properly; the periods of incorrect
data can be determined from the home signal values.

On 7/14/04 the AEM was replaced.

• temp_air_right
• temp_air_left

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect

Rain entered the net radiometer through a crack in the upper dome and
settled in the bottom dome.  This caused too large net radiation measurements
during the following daylight hours, until the domes were replaced and dried out the same 
day.

• net_radiation_mv

• net_radiation

• sensible_heat_flux
• net_radiation
• latent_heat_flux

SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect

The AEM failed.  Sensible and latent heat fluxes were incorrect, as well as gradient 
measurements.

• temp_air_right
• temp_air_left

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

• sensible_heat_flux
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_top
• latent_heat_flux
• vapor_pressure_bottom
• temp_air_bottom
• temp_trh_bottom
• rh_top_fraction
• temp_air_top

SGP/EBBR/E13 - 6 Month Checks

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

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

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

• sensible_heat_flux
• vapor_pressure_top
• latent_heat_flux
• temp_air_bottom
• temp_air_top
• bowen_ratio
• temp_trh_top
• rh_bottom_fraction
• vapor_pressure_bottom
• temp_trh_bottom
• rh_top_fraction

SGP/EBBR/E13  - Wind Speed Frozen Stopped By Ice Storm

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

The wind speed and residual wind speed measurements are incorrect.

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

• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

SGP/EBBR/E13  - Wind Direction Frozen Stopped By Ice Storm

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

• wdir_vec_mean_mv

• wdir_vec_mean
• wdir_vec_std
• wspd_vec_mean

• wspd_vec_mean
• wdir_vec_std
• wdir_vec_mean

SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West

The net radiation daily peak on sunny days occured 1/2 hour after the net radiation peak 
at E2, E9, and the SIRS because the sensor was tipped to the west about 1/2 degree.

• net_radiation_mv

• net_radiation

• sensible_heat_flux
• net_radiation
• latent_heat_flux