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.

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

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

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

• surface_soil_heat_flux_4
• soil_heat_flow_4
• latent_heat_flux
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_4
• sensible_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

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

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

The data was incorrect during the 6 month checks.

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

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

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

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

• corr_soil_heat_flow_2
• surface_soil_heat_flux_2
• latent_heat_flux
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_1
• surface_soil_heat_flux_1
• soil_heat_flow_2
• soil_heat_flow_1
• sensible_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.

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

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

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

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

• bowen_ratio
• latent_heat_flux
• temp_trh_top
• temp_trh_bottom
• sensible_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

• bowen_ratio
• latent_heat_flux
• temp_trh_top
• sensible_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
• rh_right_mv
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

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
• rh_right_mv
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

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
• rh_right_mv
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

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

• bowen_ratio
• latent_heat_flux
• sensible_heat_flux
• temp_air_bottom

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

• bowen_ratio
• latent_heat_flux
• sensible_heat_flux
• temp_air_bottom

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

• surface_soil_heat_flux_4
• latent_heat_flux
• surface_soil_heat_flux_avg
• soil_temp_4
• energy_storage_change_4
• sensible_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

• surface_soil_heat_flux_4
• latent_heat_flux
• surface_soil_heat_flux_avg
• soil_temp_4
• energy_storage_change_4
• sensible_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

• bowen_ratio
• latent_heat_flux
• temp_trh_bottom
• vapor_pressure_bottom
• sensible_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

• bowen_ratio
• vapor_pressure_top
• latent_heat_flux
• temp_trh_top
• sensible_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.

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

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

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

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

The measurements were incorrect during the 6 month checks.

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

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

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

SGP/EBBR/E13 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• temp_air_left
• temp_air_right

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

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

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)

• latent_heat_flux
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_1
• surface_soil_heat_flux_1
• soil_heat_flow_1
• sensible_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)

• corr_soil_heat_flow_2
• surface_soil_heat_flux_2
• latent_heat_flux
• surface_soil_heat_flux_avg
• soil_heat_flow_2
• sensible_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.

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

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

• null(Raw data stream - documentation not supported)

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

SGP/EBBR/E13 - Wind Direction Incorrect

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

• wdir_vec_std
• wspd_vec_mean
• wdir_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

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_left
• temp_air_right

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

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

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)

• corr_soil_heat_flow_2
• surface_soil_heat_flux_2
• latent_heat_flux
• surface_soil_heat_flux_avg
• corr_soil_heat_flow_1
• surface_soil_heat_flux_1
• soil_heat_flow_2
• soil_heat_flow_1
• sensible_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_2
• soil_heat_capacity_1
• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_4

• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_1

• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_1
• soil_heat_capacity_4
• soil_heat_capacity_2

• soil_heat_capacity_1
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• 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_3
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_1

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1

• soil_heat_capacity_2
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_1
• soil_heat_capacity_5

• soil_heat_capacity_4
• soil_heat_capacity_5
• soil_heat_capacity_3
• soil_heat_capacity_1
• soil_heat_capacity_2

• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_3
• soil_heat_capacity_4

• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_4
• soil_heat_capacity_1

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_1
• soil_heat_capacity_3
• soil_heat_capacity_2

• soil_heat_capacity_5
• soil_heat_capacity_1
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_4

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_2
• soil_heat_capacity_1
• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_4

• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_2
• soil_heat_capacity_4
• soil_heat_capacity_1

• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5
• soil_heat_capacity_3
• soil_heat_capacity_4

• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_1

• soil_heat_capacity_5
• soil_heat_capacity_1
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_4

• soil_heat_capacity_3
• soil_heat_capacity_5
• soil_heat_capacity_1
• soil_heat_capacity_4
• 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_3
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_1

• soil_heat_capacity_2
• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_1
• soil_heat_capacity_5

• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• 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_left
• temp_air_right

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

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

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_arith_mean
• wspd_vec_mean

• wspd_arith_mean
• wspd_vec_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_left
• temp_air_right

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

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

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
• rh_right_mv
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

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

• latent_heat_flux
• net_radiation
• sensible_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

• latent_heat_flux
• net_radiation
• sensible_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
• rh_right_mv
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

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_arith_mean
• wspd_vec_mean

• wspd_arith_mean
• wspd_vec_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

• latent_heat_flux
• net_radiation
• sensible_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_arith_mean
• wspd_vec_mean

• wspd_arith_mean
• wspd_vec_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_std
• wspd_vec_mean
• wdir_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

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_left
• temp_air_right

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

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

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

• latent_heat_flux
• net_radiation
• sensible_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_left
• temp_air_right

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

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

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
• rh_right_mv
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

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_arith_mean
• wspd_vec_mean

• wspd_arith_mean
• wspd_vec_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_std
• wspd_vec_mean
• wdir_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

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

• latent_heat_flux
• net_radiation
• sensible_heat_flux

SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure)

The AEM was stuck in the home 30 position most of this period.

Therefore, the sensible and latent heat fluxes are incorrect during most of this period.

• temp_air_left
• temp_air_right

• temp_trh_top
• vapor_pressure_top
• temp_air_bottom
• temp_air_top
• temp_trh_bottom
• vapor_pressure_bottom

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

SGP/EBBR/E13 - Improved EBBR CR10 Program

Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of 
the primary measurements as follows:

1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow.  
This is applied to the individual soil sets.  Measurements outside the limits are 
rejected and the measurements within the limits are used to calculate the average soil heat flow.

2) Max and min limits are used to determine incorrect values of net radiation, sensible 
heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal.  If AEM 
signal is outside the limits, h and e are set to 999s.  If net radiation is outside the 
limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s.

Virtually no incorrect soil measurement will affect the primary measurements of h and e.

By setting h and e to 999s, it can be easily seen that the primary variables are 
incorrect; no other interpretation is possible.

Prior to 20050331, the improved CR10 program was NOT in effect.  DQRs have been submitted 
for known instances of incorrect soil measurements which affected the quality of the 
primary measurements of h and e.

Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream.  The 
earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. 
sgp30ebbrE13.a1).

• latent_heat_flux
• surface_soil_heat_flux_avg
• sensible_heat_flux

SGP/EBBR/E13 - Fluxes Incorrect

The AEM has not been reaching the home_30 position fully a few times a day on most days, 
resulting in zero home_30 measurements.

The sensible and latent heat fluxes are incorrect when the home_30 measurement is near 
zero.

• temp_trh_left_rr
• temp_trh_right_rr
• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E13 - Loose connections

The tair_bot spiked around midday, as if it is temperature related, and may have indicated 
a loose connection.

The sensible and latyent heat fluxes and Bowen ratio were incorrect when this condition 
occurred.

• temp_air_left
• temp_air_right

• temp_air_bottom

• bowen_ratio
• latent_heat_flux
• sensible_heat_flux
• temp_air_bottom

SGP/EBBR/E13 - Average Soil Heat Flux Incorrect

A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting 
in both sensible and latent heat fluxes being approximately 20 watts per meter squared too 
large during the middle of the day.

• latent_heat_flux
• surface_soil_heat_flux_avg
• sensible_heat_flux

SGP/EBBR/E13 - metadata corrections

On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E13 data collected by ARM back to the installation of the 
instrument in September 1992.  Please see the current metadata for correct information.  
These changes do not affect data values or quality.

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

• base time(base_time)

• base time(base_time)

• base time(base_time)

SGP/EBBR/E13 - Wind Speed Sensor Frozen

The wind speed sensor was frozen to a stopped posiiton; wind speed data is incorrect.

• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean
• wspd_vec_mean

SGP/EBBR/E13 - Missing Data

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

• lon(lon)
• base time(base_time)
• soil_moisture_5_rr
• battery_voltage
• rh_right_mv
• temp_trh_right_rr
• net_radiation_mv
• lat(lat)
• soil_moisture_3_rr
• soil_heat_flow_4_mv
• soil_moisture_1_rr
• Time offset of tweaks from base_time(time_offset)
• soil_moisture_2_rr
• temp_reference_rr
• soil_heat_flow_2_mv
• soil_heat_flow_3_mv
• atmos_pressure_mv
• soil_temp_5_rr
• soil_temp_1_rr
• soil_moisture_4_rr
• temp_trh_left_rr
• wspd_arith_mean
• soil_temp_4_rr
• home_signal
• rh_left_mv
• Dummy altitude for Zeb(alt)
• soil_temp_2_rr
• soil_temp_3_rr
• wdir_vec_mean_mv
• soil_heat_flow_1_mv
• temp_air_left
• temp_air_right
• soil_heat_flow_5_mv

• base time(base_time)
• net_radiation
• temp_trh_bottom
• rh_top_fraction
• temp_trh_top
• home_signal
• wdir_vec_mean
• Dummy altitude for Zeb(alt)
• vapor_pressure_top
• temp_air_bottom
• wdir_vec_std
• lon(lon)
• temp_air_top
• rh_bottom_fraction
• time(time)
• vapor_pressure_bottom
• wspd_vec_mean
• lat(lat)
• Time offset of tweaks from base_time(time_offset)
• temp_reference
• Barometric Pressure(atmos_pressure)
• wspd_arith_mean

• soil_moisture_4
• soil_heat_capacity_3
• home_signal_30
• corr_soil_heat_flow_1
• wdir_vec_std
• soil_heat_flow_4
• soil_heat_capacity_5
• temp_reference
• surface_soil_heat_flux_5
• temp_air_top
• soil_moisture_5
• soil_heat_capacity_4
• temp_air_bottom
• energy_storage_change_3
• rh_bottom_fraction
• energy_storage_change_2
• soil_heat_flow_5
• soil_moisture_3
• energy_storage_change_1
• Barometric Pressure(atmos_pressure)
• energy_storage_change_5
• soil_temp_4
• base time(base_time)
• energy_storage_change_4
• corr_soil_heat_flow_3
• rh_top_fraction
• soil_temp_5
• bowen_ratio
• wspd_arith_mean
• vapor_pressure_top
• home_signal_15
• temp_trh_bottom
• temp_trh_top
• Time offset of tweaks from base_time(time_offset)
• sensible_heat_flux
• soil_moisture_2
• vapor_pressure_bottom
• soil_moisture_1
• soil_heat_flow_1
• soil_temp_2
• wspd_vec_mean
• net_radiation
• corr_soil_heat_flow_2
• lat(lat)
• surface_soil_heat_flux_avg
• latent_heat_flux
• lon(lon)
• soil_temp_1
• corr_soil_heat_flow_4
• corr_soil_heat_flow_5
• wdir_vec_mean
• surface_soil_heat_flux_2
• soil_temp_3
• surface_soil_heat_flux_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• surface_soil_heat_flux_4
• soil_heat_flow_3
• surface_soil_heat_flux_1
• Dummy altitude for Zeb(alt)
• soil_heat_flow_2

SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect

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

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

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

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

SGP/EBBR/E13 - Net Radiation and Fluxes Suspect

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

• net_radiation_mv

• net_radiation

• latent_heat_flux
• net_radiation
• sensible_heat_flux

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

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

• temp_air_left

• temp_air_top
• temp_air_bottom

• bowen_ratio
• latent_heat_flux
• temp_air_top
• sensible_heat_flux
• temp_air_bottom

SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems

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

• temp_air_left
• temp_air_right

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

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

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

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

• atmos_pressure_mv

• Barometric Pressure(atmos_pressure)

• Barometric Pressure(atmos_pressure)
• latent_heat_flux
• sensible_heat_flux

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

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

• soil_heat_flow_3_mv

• latent_heat_flux
• surface_soil_heat_flux_avg
• surface_soil_heat_flux_3
• soil_heat_flow_3
• corr_soil_heat_flow_3
• sensible_heat_flux

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

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

• atmos_pressure_mv

• Barometric Pressure(atmos_pressure)

• Barometric Pressure(atmos_pressure)
• latent_heat_flux
• sensible_heat_flux

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

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

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

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

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

SGP/EBBR/E13 - Battery failure

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

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

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

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

SGP/EBBR/E13 - Radiometer dome broken

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

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

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

• net_radiation_mv

• net_radiation

• latent_heat_flux
• net_radiation
• sensible_heat_flux

SGP/EBBR/E13 - Wind direction failure

The EBBR wind direction was stuck at 135 degrees; this reading indicates a failure of the 
sensor electronics.

• wdir_vec_mean_mv

• wdir_vec_std
• wspd_vec_mean
• wdir_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

SGP/EBBR/E13 - Wind Speed Incorrect

The wind speed sensor was stopped by freezing rain.

• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean
• wspd_vec_mean