SGP/EBBR/E26 - Temperature from Left T/RH Probe Incorrect

The temperature from the left T/RH probe went offscale frequently.  This
temperature is used in the calculation of the vapor pressure.  Therefore,
top and bottom Thum measurements, left Thum, top and bottom vapor pressure 
measurements, vapor pressure gradients, and the resulting latent and 
sensible heat fluxes and bowen ratio were frequently incorrect for the 
period stated.

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

• temp_trh_left_rr

• temp_trh_top
• temp_trh_bottom
• vapor_pressure_bottom
• vapor_pressure_top

SGP/EBBR - EBBR E22 Moved, Data Missing/Incorrect

During, and as a consequence of, the relocation of E22 EBBR, some data
is missing or incorrect during the period above.  The data was 
sneakernetted on 3 Nov 99, so some of the data may have been recovered.
Some of the data during the period is incorrect as a consequence of
damage done by cattle during the period; inspection of the data is
required to determine incorrect data.

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

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

• battery_voltage
• temp_trh_right_rr
• Dummy altitude for Zeb(alt)
• rh_right_mv
• atmos_pressure_mv
• temp_air_left
• soil_heat_flow_3_mv
• home_signal
• base time(base_time)
• lon(lon)
• net_radiation_mv
• temp_reference_rr
• soil_temp_2_rr
• soil_temp_1_rr
• Time offset of tweaks from base_time(time_offset)
• soil_temp_4_rr
• soil_moisture_2_r
• temp_air_right
• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_5_r
• wdir_vec_mean_mv
• rh_left_mv
• soil_heat_flow_2_mv
• wspd_arith_mean
• soil_heat_flow_5_mv
• soil_temp_3_rr
• soil_moisture_1_r
• soil_heat_flow_4_mv
• lat(lat)
• soil_heat_flow_1_mv
• temp_trh_left_rr
• soil_temp_5_rr

SGP/EBBR - EBBR E22 Net Radiation Incorrect

The upper dome of the net radiometer was broken, probably by migrating
birds, and water had drained into the bottom dome.  Since much of the data
is missing during the period, it is not clear exactly when the top dome was
broken during the period.  All net radiation data and sensible and latent 
heat fluxes data are incorrect for this period.

The affected data fields are:

5 minute:  q

15 minute: mv_q

30 minute: q, e, h

• latent_heat_flux
• sensible_heat_flux
• net_radiation

• net_radiation

• net_radiation_mv

SGP/EBBR - EBBR E25 Data Missing/Incorrect During System Changeout

All data was missing or incorrect during the EBBR system changeout.

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

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

• soil_temp_4_rr
• rh_left_mv
• lat(lat)
• soil_heat_flow_2_mv
• Time offset of tweaks from base_time(time_offset)
• soil_heat_flow_4_mv
• soil_heat_flow_5_mv
• atmos_pressure_mv
• temp_air_left
• soil_heat_flow_1_mv
• wdir_vec_mean_mv
• temp_reference_rr
• soil_temp_5_rr
• soil_moisture_3_r
• soil_moisture_1_r
• soil_moisture_4_r
• soil_moisture_5_r
• soil_heat_flow_3_mv
• temp_air_right
• net_radiation_mv
• temp_trh_left_rr
• soil_moisture_2_r
• base time(base_time)
• rh_right_mv
• soil_temp_1_rr
• wspd_arith_mean
• lon(lon)
• soil_temp_2_rr
• home_signal
• temp_trh_right_rr
• Dummy altitude for Zeb(alt)
• soil_temp_3_rr
• battery_voltage

SGP/EBBR/E26 - Left T/RH Probe Temperature Data Incorrect

Left T/RH probe temperature is frequently offscale during the period.
Examine the data (compare with the the T/RH right temperature) to determine
which times are incorrect.  Replacement of the probe on 29 June 1999 
solved the problem.

Affected data are:

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

• temp_air_bottom
• bowen_ratio
• latent_heat_flux
• temp_air_top
• sensible_heat_flux

• temp_air_left

• temp_air_top
• temp_air_bottom

SGP/EBBR - EBBR E25 Data Incorrect During J-panel Change

Some data was incorrect during the replacement of the J-panel #4. 

Affected data are:

5 minute:  tair_top, tair_bot, thum_top, thum_bot, vp_top, vp_bot, tref
15 minute: rr_thum_r, rr_thum_l, rr_ts1, rr_ts2, rr_ts3, rr_ts4, rr_ts5,
           r_sm1, r_sm2, r_sm3, r_sm4, r_sm5, tair_r, tair_l, r_tref
30 minute: bowen, e, h, tair_top, tair_bot, thum_top, thum_bot, vp_top, 
           vp_bot, sm1, sm2, sm3, sm4, sm5, shf1, shf2, shf3, shf4, shf5,
           c_shf1, c_shf2, c_shf3, c_shf4, c_shf5, ts1, ts2, ts3, ts4, ts5,
           cs1, cs2, cs3, cs4, cs5, ces1, ces2, ces3, ces4, ces5, g1, g2,
           g3, g4, g5, ave_shf, tref

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• temp_air_top
• sensible_heat_flux
• temp_trh_bottom
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• surface_soil_heat_flux_1
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_heat_capacity_5
• soil_temp_1
• soil_temp_2
• soil_temp_3
• soil_temp_4
• soil_temp_5
• energy_storage_change_5
• latent_heat_flux
• soil_heat_flow_1
• soil_heat_flow_2
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_5
• temp_trh_top
• vapor_pressure_top
• temp_air_bottom
• energy_storage_change_4
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_1
• vapor_pressure_bottom
• bowen_ratio
• surface_soil_heat_flux_avg

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

• temp_air_right
• soil_temp_4_rr
• temp_trh_left_rr
• soil_moisture_2_r
• soil_temp_1_rr
• temp_air_left
• soil_temp_2_rr
• temp_trh_right_rr
• temp_reference_rr
• soil_temp_5_rr
• soil_temp_3_rr
• soil_moisture_3_r
• soil_moisture_1_r
• soil_moisture_4_r
• soil_moisture_5_r

SGP/EBBR - EBBR E25 Thermocouple Temperatures Incorrect

Thermocouple temperature data was incorrect during the period, for unknown 
reasons. 

Affected data are:

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

• latent_heat_flux
• temp_air_bottom
• bowen_ratio
• temp_air_top
• sensible_heat_flux

• temp_air_bottom
• temp_air_top

• temp_air_right
• temp_air_left

SGP/EBBR/E26 - Right Aspirator Not Working

The right aspirator fan did not work during the period.

The following values were therefore incorrect:

5 minute:  tair_top, tair_bot, thum_top. thum_bot, hum_top, hum_bot,
           vp_top, vp_bot
15 minute: rr_thum_l, mv_hum_l, tair_l
30 minute: tair_top, tair_bot, thum_top. thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, e, h, bowen

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

• rh_left_mv
• temp_trh_left_rr
• temp_air_left

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

SGP/EBBR/E26 - Anemometer Not Working, Wind Speed Incorrect

The anemometer was not working during this period.

The following values were therefore incorrect:

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

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

SGP/EBBR/26 - Low Battery Condition

When battery voltage was less than 10.4 V DC during this period, all
data should be considered to be incorrect.  The cause of the problem
was a broken trace on J-panel #3.

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

• wdir_vec_mean_mv
• soil_heat_flow_4_mv
• soil_moisture_2_r
• soil_heat_flow_3_mv
• soil_temp_1_rr
• temp_trh_right_rr
• soil_heat_flow_2_mv
• battery_voltage
• lon(lon)
• soil_temp_3_rr
• soil_moisture_4_r
• soil_heat_flow_1_mv
• soil_moisture_1_r
• soil_temp_4_rr
• temp_trh_left_rr
• lat(lat)
• temp_air_left
• Dummy altitude for Zeb(alt)
• rh_right_mv
• soil_moisture_3_r
• home_signal
• temp_air_right
• rh_left_mv
• soil_temp_5_rr
• soil_heat_flow_5_mv
• temp_reference_rr
• Time offset of tweaks from base_time(time_offset)
• soil_moisture_5_r
• base time(base_time)
• soil_temp_2_rr
• wspd_arith_mean
• atmos_pressure_mv
• net_radiation_mv

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

SGP/EBBR - EBBR E22 Soil Moistures Negative

Because of the lack of rain, soil moistures were negative during much 
of the period.  All five soil moisture sensors had negative outputs by 
early on Aug 1.  The negative soil moistures affected sensible and latent
heat fluxes slightly.

The affected data are:

15 minute: r_sm1, r_sm2, r_sm3, r_sm4, r_sm5
30 minute: sm1, sm2, sm3, sm4, sm5, c_shf1, c_shf2, c_shf3, c_shf4,
           c_shf5, cs1, cs2, cs3, cs4, cs5, ces1, ces2, ces3, ces4, ces5,
           g1, g2, g3, g4, g5, ave_shf, e, h

• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_5
• surface_soil_heat_flux_avg
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• sensible_heat_flux
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• surface_soil_heat_flux_5

• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_1_r
• soil_moisture_5_r
• soil_moisture_2_r

SGP/EBBR - EBBR E25 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

• latent_heat_flux
• sensible_heat_flux
• net_radiation

• net_radiation

• net_radiation_mv

SGP/EBBR/E26 - 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

• latent_heat_flux
• net_radiation
• sensible_heat_flux

• net_radiation_mv

• net_radiation

SGP/EBBR - EBBR E22 Soil Moistures Negative

Because of the lack of rain, all soil moistures were negative during much 
of the period.  The negative soil moistures caused soil heat storage and
thus average soil heat flux to be smaller than they should have been.  The
sensible and latent heat fluxes were therefore reduced slightly 
(approximately 0-5%).

The affected data are:

15 minute: r_sm1, r_sm2, r_sm3, r_sm4, r_sm5
30 minute: sm1, sm2, sm3, sm4, sm5, c_shf1, c_shf2, c_shf3, c_shf4,
           c_shf5, cs1, cs2, cs3, cs4, cs5, ces1, ces2, ces3, ces4, ces5,
           g1, g2, g3, g4, g5, ave_shf, e, h

• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_5
• surface_soil_heat_flux_avg
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• sensible_heat_flux
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• surface_soil_heat_flux_5

• soil_moisture_4_r
• soil_moisture_3_r
• soil_moisture_1_r
• soil_moisture_5_r
• soil_moisture_2_r

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

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

Soil heat flux #1 was large negative or offscale numerous times.

• latent_heat_flux
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_1_mv

SGP/EBBR/E26 - Reprocess Soil Moisture Off-Scale

During numerous periods within the days listed above, individual soil
moisture probes indicate small positive or else negative values when
soil moisture is high (greater than 35%).  This situation has occured
since the present EBBR unit was installed on 17 July 1996.  The cause
of the problem is inadequate range in the calibration curve equation.
Cement soil is somewhat unique amongst the EBBR sites, as the soil is
very sandy and porous; it can hold a larger amount of water per volume
than the other soils.  This high a soil moisture cannot be obtained with
the calibration soil used by REBS.  Therefore, the soil moisture equations
need to be manipulated to allow larger soil moistures to be calculated.
Much of the data from January 1998 is corrupted by this problem,
making changes in the equations prudent.

The soil moisture data must be inspected by the data user to see when
soil moisture values for one or more probes is inconsistent with the
others.

Recalculation of ave_shf, e, and h must be made using only the soil
moisture sets with correct soil moisture values.
Affected data values are (# for probe number):

15 minute: rr_sm#

30 minute: sm#, c_shf#, cs#, ces#, g#, ave_shf, e, h

Sensible, latent, and soil heat fluxes can be recalculated using the soil
probe sets that provide correct data.  For example, if soil moisture 2 is
incorrect,

ave_shf = (g1 + g3 + g4 + g5)/4

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

h = -(e + ave_shf +q),


If soil moisture 2 and 4 are incorrect,

ave_shf = (g1 + g3 + g5)/3

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

h = -(e + ave_shf +q),


If soil moisture 2, 4, and 5 are incorrect,

ave_shf = (g1 + g3)/2

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

h = -(e + ave_shf +q),

etc.

On 5 May 1998 at 1815 GMT a calibration coefficient was changed in the CR10
program as a result of a BCR by the mentor.  This coefficient has helped
reduce the least severe problems but has not eliminated problems from
large negative soil moistures measured even once during the integration
period.  However, now the incorrect average soil heat flow, latent heat
flux, and sensible heat flux are so large, negative or positive, that they
cannot be mistaken as being correct. 

The EBBR unit was replaced with a recalibrated system on 1 April 1999.
The previous unit experienced soil moisture problems the entire time
(almost 3 years) that the system was installed because of the inadequacy
of the soil moisture sensor calibrations.

• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_5
• surface_soil_heat_flux_5
• soil_moisture_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• soil_moisture_1
• soil_heat_capacity_5
• soil_moisture_2
• soil_heat_capacity_4
• soil_moisture_3
• soil_moisture_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_5

• soil_moisture_1_r
• soil_moisture_5_r
• soil_moisture_3_r
• soil_moisture_2_r
• soil_moisture_4_r

SGP/EBBR/E26 - EBBR E26 Left Aspirator Not Working

The data is suspect because of inadequate aspiration for the sensors
in the left aspirated radiation shield.

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

• rh_left_mv
• temp_trh_left_rr
• temp_air_left

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

SGP/EBBR/E26 - EBBR E26 All Data Incorrect

All data was incorrect for an unknown reason.

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

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

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

SGP/EBBR/E26 - All Data Incorrect

All data wqas incorrect for an unknown reason.

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

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

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

SGP/EBBR/E26 - All Data Incorrect

Data was incorrect because of Preventative Maintenance activities.

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

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

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

SGP/EBBR/E26 - Low Battery Voltage Causes Incorrect Data

Battery voltage below about 10.5 volts DC caused a number of the
EBBR sensors to not measure correctly.

• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1
• home_signal_30
• home_signal_15
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• soil_temp_5
• soil_temp_4
• soil_heat_flow_3
• soil_temp_3
• soil_heat_flow_2
• soil_temp_2
• soil_heat_flow_1
• soil_temp_1
• soil_heat_flow_5
• soil_heat_flow_4
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_5

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

• home_signal

SGP/EBBR/E26 - Low Battery Voltage Causes Incorrect Data

Battery voltage less than 10.5 volts DC causes some
sensors to measure incorrectly.

• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1
• home_signal_30
• home_signal_15
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• soil_temp_5
• soil_temp_4
• soil_heat_flow_3
• soil_temp_3
• soil_heat_flow_2
• soil_temp_2
• soil_heat_flow_1
• soil_temp_1
• soil_heat_flow_5
• soil_heat_flow_4
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_5

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

• home_signal

SGP/EBBR/E26 - Low Battery Voltage Causes Incorrect Data

Battery voltage less than 10.5 volts DC causes
some sensors to measure incorrectly.

• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1
• home_signal_30
• home_signal_15
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• soil_temp_5
• soil_temp_4
• soil_heat_flow_3
• soil_temp_3
• soil_heat_flow_2
• soil_temp_2
• soil_heat_flow_1
• soil_temp_1
• soil_heat_flow_5
• soil_heat_flow_4
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_5

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

• home_signal

SGP/EBBR/E26 - Low Battery Voltage Causes Incorrect Data

Battery voltage less than 10.5 volts DC causes
some sensors to make incorrect measurements.

• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_3
• energy_storage_change_4
• energy_storage_change_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• soil_heat_capacity_2
• soil_heat_capacity_3
• soil_heat_capacity_1
• home_signal_30
• home_signal_15
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• soil_temp_5
• soil_temp_4
• soil_heat_flow_3
• soil_temp_3
• soil_heat_flow_2
• soil_temp_2
• soil_heat_flow_1
• soil_temp_1
• soil_heat_flow_5
• soil_heat_flow_4
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• corr_soil_heat_flow_5

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

• home_signal

SGP/EBBR/E26 - All Data Incorrect

All data was incorrect for an unknown reason.

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

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

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

SGP/EBBR/E26 - All Data Incorrect

All data was incorrect for an unknown reason.

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

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

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

SGP/EBBR/E26 - Left Air Temperature Periodically Incorrect

Left air temperature periodically was incorrect, causing the indicated measurements
to be incorrect.  The user will need to inspect the data to see when the left air
temperature was incorrect (compare left with right air temperature or with the
humidity probe temperature).

• temp_air_bottom
• bowen_ratio
• latent_heat_flux
• temp_air_top
• sensible_heat_flux

• temp_air_left

• temp_air_top
• temp_air_bottom

SGP/EBBR/E26 - Reference Temperature Incorrect

The reference temperature sensor did not work during the indicated period,
causing the indicated measurements to be incorrect.

• temp_air_bottom
• bowen_ratio
• latent_heat_flux
• temp_air_top
• temp_reference
• sensible_heat_flux

• temp_air_right
• temp_reference_rr
• temp_air_left

• temp_air_top
• temp_air_bottom
• temp_reference

SGP/EBBR/E26 - Electronics Problem

Incorrect home signal indicates an electronic problem that affected the indicated
measurements; this may have been a multiplexer #2 problem as all sensors affected 
are connected to that multiplexer and no sensors on multiplexer #1 were affected.

• temp_air_bottom
• surface_soil_heat_flux_avg
• net_radiation
• temp_air_top
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• bowen_ratio
• home_signal_30
• home_signal_15
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• soil_heat_flow_3
• soil_heat_flow_2
• soil_heat_flow_1
• soil_heat_flow_5
• soil_heat_flow_4
• sensible_heat_flux
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• temp_reference
• corr_soil_heat_flow_5

• soil_heat_flow_4_mv
• soil_heat_flow_5_mv
• temp_air_left
• temp_reference_rr
• soil_heat_flow_2_mv
• home_signal
• temp_air_right
• soil_heat_flow_3_mv
• soil_heat_flow_1_mv
• net_radiation_mv

• home_signal
• temp_air_top
• temp_air_bottom
• temp_reference
• net_radiation

SGP/EBBR/E26 - Soil Heat Flow #5 Incorrect

Soil Heat Flow #5 was incorrect, causing the indicated measurements to be incorrect.

• surface_soil_heat_flux_avg
• latent_heat_flux
• surface_soil_heat_flux_5
• soil_heat_flow_5
• corr_soil_heat_flow_5
• sensible_heat_flux

• soil_heat_flow_5_mv

SGP/EBBR/E26 - Soil Heat Flow #1 Incorrect

Soil Heat Flow #1 was incorrect, causing the indicated measurements to be incorrect.
A broken sensor wire was at fault.

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

• soil_heat_flow_1_mv

SGP/EBBR/E26 - Soil Heat Flow #2 Large Negative

Soil Heat Flow #2 was large negative and incorrect for an unknown reason.

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

• soil_heat_flow_2_mv

SGP/EBBR/E26 - Left Air Temperature Incorrect

Incorrect left air temperature caused the indicated measurements to be incorrect.

• temp_air_bottom
• bowen_ratio
• latent_heat_flux
• temp_air_top
• sensible_heat_flux

• temp_air_left

• temp_air_top
• temp_air_bottom

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

SGP/EBBR/E26 - Wind Speed Iced

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

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

SGP/EBBR/E22 - EBBR E22 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

SGP EBBR E22 - E22 EBBR Data Incorrect During Logger Replacement

The data was incorrect during replacement of the logger.

• null(Raw data stream - documentation not supported)

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

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

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

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

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

• surface_soil_heat_flux_avg
• soil_moisture_5
• energy_storage_change_1
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_heat_capacity_5
• soil_heat_capacity_4
• sensible_heat_flux
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• surface_soil_heat_flux_5

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

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

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

• latent_heat_flux
• soil_heat_capacity_3
• sensible_heat_flux
• energy_storage_change_3
• surface_soil_heat_flux_avg
• surface_soil_heat_flux_3
• soil_moisture_3

• soil_moisture_3_rr
• soil_moisture_3_r

SGP EBBR E22 - E22 EBBR Net Radiation Incorrect

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

• latent_heat_flux
• sensible_heat_flux
• net_radiation

• net_radiation

• net_radiation_mv

SGP EBBR E25 - E25 EBBR Soil Heat Flow #5 Incorrect

Soil Heat Flow probe #5 gave incorrect measurements; the measurements were
either too low or low offscale.  Average soil heat flow, sensible heat flux, and latent 
heat flux were therefore also incorrect, but can be calculated from the
remaining correct soil heat flows.

• latent_heat_flux
• corr_soil_heat_flow_5
• soil_heat_flow_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_avg
• sensible_heat_flux

• soil_heat_flow_5_mv

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

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

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

• soil_heat_flow_3_mv

SGP EBBR E25 - E25 EBBR Left Aspirator Not Working

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

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

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

• rh_left_mv
• temp_air_left
• temp_trh_left_rr

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

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

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

• soil_heat_flow_1_mv

SGP EBBR E26 - Data Suspect, Low Battery Voltage

The data measurements are suspect because of low battery voltage.
Some measurements may be correct, but most are probably incorrect.
Large home signals indicate very low battery voltage is present.

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

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

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

• null(Raw data stream - documentation not supported)

SGP EBBR E26 - All Data Incorrect

All data was incorrect during these periods for unknown reasons.
However, this tends to happen during preventative maintenance
visits if sensors have to be changed out or tested and the 
datalogger program is reloaded, or if the battery voltage is low.

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

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

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

• null(Raw data stream - documentation not supported)

SGP EBBR E26 - Soil Heat Flow #1 Incorrect

Soil Heat Flow #1 was incorrect because of a bad electronic
connection.  Average surface heat flow, sensible heat flux, and
latent heat flux are incorrect as a result; these can be re-calculated 
by using the remaining correct soil heat flows.

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

• soil_heat_flow_1_mv

SGP EBBR E26 - Soil Heat Flow #2 Incorrect

Soil Heat Flow #2 was incorrect.  Average soil heat flow, 
sensible heat flux, and latent heat flux were therefore also
incorrect; these can be re-calculated from the remaining 
correct soil heat flows.

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

• soil_heat_flow_2_mv

SGP EBBR E26 - Soil Heat Flow #3 Incorrect

Soil heat Flow #3 was incorrect (large negative).  Therefore
average soil heat flow, sensible heat flux, and latent heat flux were
also incorrect; these can be re-calculated using the remaining
correct soil heat flows.

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

• soil_heat_flow_3_mv

SGP EBBR E26 - Soil Moisture #1 Incorrect

Soil Moisture #1 was a constant 33.7 and was incorrect.

Latent and Sensible Heat fluxes were normally minimally affected.

• surface_soil_heat_flux_avg
• soil_heat_capacity_1
• latent_heat_flux
• surface_soil_heat_flux_1
• soil_heat_flow_1
• corr_soil_heat_flow_1
• soil_moisture_1
• sensible_heat_flux

• soil_moisture_1_r
• soil_moisture_1_rr

SGP EBBR E26 - AEM Inbetween, Data Incorrect

While the AEM was inbetween the correct measurement positions the measurements from the 
two levels were incorrect.

The sensible and latent heat fluxes and Bowen ratio were therefore incorrect also.

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

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

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

SGP EBBR E26 - Soil Heat Flow #5 Incorrect

Soil Heat Flow #5 was large negative during this period.

Therefore, calculated average soil heat flow, latent heat flux, and sensible heat flux 
were incorrect.  These measurements can be recalculated from the use of measurements from 
only soil heat flow sensors #1-4.

• surface_soil_heat_flux_avg
• latent_heat_flux
• surface_soil_heat_flux_5
• soil_heat_flow_5
• corr_soil_heat_flow_5
• sensible_heat_flux

• soil_heat_flow_5_mv

SGP EBBR E26 - Some Data Incorrect

The reference temperature sensor malfunctioned, causing all associated measurements to be 
incorrect.

• temp_air_bottom
• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_3
• energy_storage_change_4
• temp_air_top
• energy_storage_change_5
• temp_trh_bottom
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4
• temp_trh_top
• bowen_ratio
• latent_heat_flux
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• soil_temp_5
• soil_temp_4
• soil_temp_3
• soil_temp_2
• soil_temp_1
• vapor_pressure_top
• sensible_heat_flux
• vapor_pressure_bottom
• temp_reference

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

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

SGP EBBR E26 - Some Data Incorrect

Since soil temperature was not available for the previous half hour, soil energy storage 
could not be calculated properly for the indicated period.  The individual soil heat 
storage from the five soil sets, average soil heat flow, sensible heat flux, and latent heat 
flux are therefore incorrect.

• surface_soil_heat_flux_avg
• energy_storage_change_1
• energy_storage_change_2
• latent_heat_flux
• energy_storage_change_3
• energy_storage_change_4
• surface_soil_heat_flux_2
• energy_storage_change_5
• surface_soil_heat_flux_1
• sensible_heat_flux
• surface_soil_heat_flux_5
• surface_soil_heat_flux_3
• surface_soil_heat_flux_4

SGP EBBR E22 - E22 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

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

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

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

The data was incorrect during the 6 month checks.

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

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

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

SGP EBBR E26 - Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

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

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

SGP EBBR E26 - Low Battery Voltage

During the indicated the period the battery voltage often dropped 
to 10.4 volts or below.  At voltages less than 10.5 volts none of
the selected measurements can be considered to be correct.  The battery
charging capacity was insufficient to maintain voltage at night.

If the battery voltage is less than 10.5 volts (see battery voltage in the
15 minute data files), do not use the data.

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

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

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

SGP EBBR E25 - E25 EBBR Wind Direction Incorrect

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

• wdir_vec_std
• wdir_vec_mean
• wspd_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

SGP EBBR E25 - E25 EBBR Wind Direction Incorrect

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

• wdir_vec_std
• wdir_vec_mean
• wspd_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

SGP EBBR E26 - Battery Voltage Low

The battery voltage often dropped below 10.5 volts. 

All data for voltages below 10.5 volts should be considered to be incorrect.

See the 15 minute data files, which contain the battery voltage, to 
determine when the data was incorrect.

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

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

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

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

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

• sensible_heat_flux
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_4
• surface_soil_heat_flux_avg
• latent_heat_flux
• energy_storage_change_1
• surface_soil_heat_flux_2
• surface_soil_heat_flux_1
• surface_soil_heat_flux_4
• surface_soil_heat_flux_3
• surface_soil_heat_flux_5

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

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

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

• soil_heat_flow_3_mv