SGP/EBBR - EBBR E7 Left Aspirator Not Working

The left 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_left
• rh_left_mv
• temp_trh_left_rr

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

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

SGP/EBBR - EBBR E7 Net Radiation Incorrect

The net radiometer top dome was broken and water had entered.  Net 
radiation values are therefore incorrect during the period.

The affected data are:

5 minute:  q
15 minute: mv_q
30 minute: q, h, e

• net_radiation_mv

• Radiation, net(net_radiation)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• Radiation, net(net_radiation)

SGP/EBBR/E7 - EBBR E7 Wind Speed Iced

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

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

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

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

SGP/EBBR/E7 - E7 EBBR Datalogger Replacement/Upgrade - Data Incorrect

The datalogger was replaced with one that had been upgraded
with a new operating system.  Data just after the 
replacement was incorrect.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• soil_heat_capacity_3
• surface_soil_heat_flux_2
• soil_heat_capacity_4
• surface_soil_heat_flux_3
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - E7 EBBR Right Aspirator Replacement

A number of the basic measurements and measurements calculated
from them were incorrect while the right AEM aspirator was replaced.

• temp_trh_right_rr
• temp_air_right
• rh_right_mv

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

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

SGP/EBBR/E7 - E7 EBBR Left Aspirator Fan Not Working

While the left aspirator fan was not working, the indicated
measurements were incorrect.

• temp_air_left
• rh_left_mv
• temp_trh_left_rr

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

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

SGP/EBBR/E7 - E7 EBBR Net Radiometer Dome Replacement

The net radiation, sensible heat flux, and latent heat flux
were incorrect while the net radiometer domes were being replaced.

• net_radiation_mv

• Radiation, net(net_radiation)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• Radiation, net(net_radiation)

SGP/EBBR/E7 - E7 EBBR All Data Incorrect

All measurements were incorrect for an unknown reason.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• soil_heat_capacity_3
• surface_soil_heat_flux_2
• soil_heat_capacity_4
• surface_soil_heat_flux_3
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - E7 EBBR All Data Incorrect

All measurements were incorrect for an unknown reason.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• soil_heat_capacity_3
• surface_soil_heat_flux_2
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP/EBBR/E7 - E7 EBBR AEM Frozen Stopped

Icing caused the Automatic Exchange Mechanism to stop.  The
indicated measurements are therefore incorrect.

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

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

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

SGP EBBR E7 - E7 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• soil_heat_capacity_3
• surface_soil_heat_flux_2
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP EBBR E7 - E7 EBBR AEM Position Caused Incorrect Data

The AEM stuck in one position, cuasing incorrect measurements
and calculated quantities.

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

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

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

SGP EBBR E7 - E7 EBBR AEM Position Caused Incorrect Data

The AEM stuck in one position, causing the indicated measurements and calculated
quantities to be incorrect.

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

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

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

SGP EBBR E7 - E7 EBBR All Data Incorrect

The data was incorrect immediately after the re-calibrated system was 
installed and put into service.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• soil_heat_capacity_3
• surface_soil_heat_flux_2
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - T/RH Check

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

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

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


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

5 minute:  1605, 1610, 1615, 1620, 1625, 1630, 1635, 1640, 1645,
           1650, 1655, 1700, 1705, 1710, 1715, 1720, 1725, 1730,
           1735, 1740, 1745, 1750
15 minute: 1615, 1630, 1645, 1700, 1715, 1730, 1745, 1800
30 minute: 1630, 1700, 1730, 1800

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

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

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

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

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

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

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

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

SGP/EBBR/E7 - 3-month Check

During EBBR 3 month checks the Automatic Exchange Mechanism is disabled
(reflected by home signals near zero) so that the two aspirator units can be
placed at the same height.  The measurements during this period, at least,
do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h),
or latent heat flux (e), nor do the air temperature and relative humidity
measurements indicate gradients.  Checks performed before or after the AEM
is disabled also lead to some incorrect data.

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

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

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

SGP/EBBR/E7 - Measurements Zero

The indicated measurements were zero after interruption of the CR10 program.

• Raw data stream - documentation not supported

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - AEM Hung

The indicated measurements were incorrect because the automatic exchange mechanism hung in 
one position.

• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E7 - Wind Speed Incorrect

The wind speed and resultant wind speed are incorrect for the indicated times because a 
cup had broken off of the cup anemometer.

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

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

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

SGP/EBBR/E7 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E7 - Data Incorrect during 6 month checks

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

• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E7 - Wind speed incorrect

A wind speed sensor electronics problem limited the
measurement to the sensor offset.  This data was incorrect.

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

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

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

SGP/EBBR/E7 - AEM Problems

The AEM (Automatic Exchange Mechanism) hung in a non-home position for
a few lengthy periods, during which the indicated measurements are incorrect.

• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E7 - T/RH Ventilator Fans Stopped

The temperature and relative humidity gradients are suspect because the 
ventilator fans were not operating during this time period. The data needs
to be carefully inspected to determine when measurements, if any, are correct.

• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E7 - Data Reported as Zero following Logger Replacement

The data was reported as zero after a data logger replacement.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7  - 6 Month Checks

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

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

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

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

SGP/EBBR/E7  - AEM Hung Inbetween Home Position

The AEM was hung inbetween home positions, causing many measurements to be incorrect.

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

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

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

SGP/EBBR/E7  - AEM Malfunction, Some Data Incorrect

After a while, the teflon slides on the AEMs warp from
heat and use.  This tends to make the AEM drag, jam, and get hung.
This happened at E7 EBBR.

Replacement of the AEM resolved the problem.

• temp_air_left
• temp_air_right

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

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

SGP/EBBR/E7 - Data all zero

Data values were all zero after restarting the CR10 datalogger.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_3
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 1(soil_temp_1)
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• surface_soil_heat_flux_3
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - Water in Net Radiometer Domes; 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

• Radiation, net(net_radiation)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• Radiation, net(net_radiation)

SGP/EBBR/E7  - Reference Temperature Failure

The reference T sensor was not working, affecting 
other temperature sensors.  Sensible and latent heat fluxes
were incorrect when this occurred.

• temp_air_right
• temp_air_left

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

• temp_air_bottom
• temp_air_top

SGP/EBBR/E7 - 6 Month Checks

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

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

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

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

SGP/EBBR/E7 - Pressure Sensor Data Incorrect

The E7 pressure sensor suffered
from spikes in pressure, which were related to 
increases in voltage during the day as the 
solar panels charged the battery.  These spikes
were not of a magnitude that would affect the 
30 minute surface fluxes.

Replacement of the pressure sensor solved the problem.

• atmos_pressure_mv

• Barometric Pressure(atmos_pressure)

• Barometric Pressure(atmos_pressure)

SGP/EBBR/E7 - Wind Speed Sensor Frozen By Ice Storm

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

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

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

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

SGP/EBBR/E7 - Pressure Sensor Data Incorret

The E7 pressure sensor suffered
from spikes in pressure, which were related to 
increases in voltage during the day as the 
solar panels charged the battery.  These spikes
were not of a magnitude that would affect the 
30 minute surface fluxes.

Replacement of the pressure sensor solved the problem.

• atmos_pressure_mv

• Barometric Pressure(atmos_pressure)

• Barometric Pressure(atmos_pressure)

SGP/EBBR/E7  - Wind Speed Frozen Stopped By Ice

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

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

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

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

SGP/EBBR/E7 - Tref Problem Causes All Temps. to be Incorrect

The Tref sensor went crazy for this brief period, making all temperature
measurements incorrect.

• temp_air_left
• temp_air_right

• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• temp_reference
• Soil temperature mean 3(soil_temp_3)
• temp_air_top
• temp_trh_bottom
• temp_trh_top
• temp_air_bottom
• Soil temperature mean 1(soil_temp_1)

• temp_air_bottom
• temp_air_top
• temp_trh_bottom
• temp_reference
• temp_trh_top

SGP/EBBR/E7 - Pressure Too High

When data collection resumed after a missing period, the barometer pressure
had become very high, 102 kPa, which was not correct.  This condition resulted
from an incorrect calibration being used. Sensible heat flux was overestimated 
by about 4% and latent heat flux underestimated by about 4% because of the 
high pressure readings.

• atmos_pressure_mv

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

• Barometric Pressure(atmos_pressure)

SGP/EBBR/E7 - Data Missing

A power outage resulted in missing data for the indicated period.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - 6 Month Checks

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

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

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

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

SGP/EBBR/E7  - 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.

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

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

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

SGP/EBBR/E7  - 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.

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

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

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

SGP/EBBR/E7 - Data Missing

Data was missing because of a communication problem.  However, previously
missing data from 10/07-18 was recovered from the EBRR storage module and ingested, 
thereby reducing the data lost period significantly.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• energy_storage_change_3
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• soil_heat_capacity_3
• surface_soil_heat_flux_2
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect

The top dome of the net radiometer was cracked; net radiation, and sensible and latent 
heat flux measurements were incorrect.

• net_radiation_mv

• Radiation, net(net_radiation)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• Radiation, net(net_radiation)

SGP/EBBR/E7 - metadata corrections

On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E7 data collected by ARM back to the installation of the 
instrument in May 1993. 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 the systems
3) Correction of soil moisture units (from "by volume" to "gravimetric")

• base_time

• base_time

• base_time

SGP/EBBR/E7 - Barometric Pressure Incorrect

The pressure measurement sometimes dropped to zero during daytime because of 
unstable battery voltage.

• atmos_pressure_mv

• Barometric Pressure(atmos_pressure)

• Barometric Pressure(atmos_pressure)

SGP/EBBR/E7 - Fluxes and Gradient Measurements Incorrect

The left AEM aspirator was not working during this period, resulting in incorrect gradient 
and flux measurements.

• temp_air_left
• rh_left_mv
• temp_trh_left_rr

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

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

SGP/EBBR/E7 - Windspeed threshhold too high

The wind speed sensor developed worn bearings and therefore too high a starting 
threshhold.

The data user should compare the EBBR wind speed with the SMOS wind speed to detect 
periods when the EBBR wind speed threshhold caused poor data quality.

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

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

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

SGP/EBBR/E7  - Wind Speed Frozen Stopped

Freezing rain stopped wind speed sensor.

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

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

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

SGP/EBBR/E7 - AEM voltage too high

The AEM was putting out too high a home 30 voltage.

Sensible and latent flux data was affected by this condition, at first just at night, but 
later (especially after 03/17/09 0730 GMT) fluxes were affected during
all hours of the day.

• home_signal

• home_signal_15
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)
• home_signal_30

• home_signal

SGP/EBBR/E7 - Wind direction incorrect

The wind direction flat-lined at ~10 degrees.  System was replaced.

• wdir_vec_mean_mv

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

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

SGP/EBBR/E7 - Wind speed frozen stopped

The wind speed sensor was frozen stopped by freezing rain.

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

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

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

Invalid wind speed frozen sensor

ARM PROBLEM IDENTIFICATION FORM (PIF)

                            PIF No. P940301.4

Submitted By:        David R. Cook
    Organization:    Argonne National Laboratory
    Date Submitted:  March 1, 1994

Problem Description/Change Description.

o For Instrument Problems ONLY,
        Identify MODE of Operation:  Degraded

o Give a brief explanation with details, attach examples and any supporting
  information.  This should include a description of analysis leading to
  identification of problem and, if known, recommended action.


This is an informational PIF.

On February 23, 1994 the EBBR wind speed sensor at E7, Elk Falls, KS was
frozen to a stationary condition by ice.  Invalid data for the time period
indicated is:

30 minute: wind_s, res_ws

15 minute: wind_s

5 minute: wind_s, res_ws.


How may we contact you?
    e-mail:  cook@anler.er.anl.gov
    phone:   (708) 252-5840
    FAX:     (708) 252-9792

Submitter's Priority: 3
    [Critical-1   Very Important-2 Important-3 Inconvenient-4 Interesting-5]

Where was this Problem Identified: FI
    [Site Data System-SDS      Experiment Center-EC]
    [Archive-A At              Field Instrument-FI ]
    [During Data Analyis-DA    Other- List Location]

Does this PIF result in a Software Change Request?  NO
    Where:                     [ SDS,  EC, or  A ]

    Type:                      [Development-1 Problem-2  Enhancement-3]

    List Programs/Documents Affected:

    Configuration Identification:

Does problem impact data values or cause data loss?  Data Loss.
    which platform(s):  EBBR, E7, Elk Falls, KS

    Specify (or estimate) begin and end dates for data loss
          Begin Date    2/23/94   Time  1030  GMT
          End   Date    2/23/94   Time  1540  GMT

    Apparent cause of data loss, if known:   Ice

    SUGGESTED CAUSES:
    [human error, component failure, temperature, lightning          ]
    [foreign matter, power loss, software failure,                   ]
    [communications failure, modification difficulites, specify other]

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

Stopped Ventilation Fan

DQR No:                               Platform: EBBR

Subject: Stopped Ventilation Fan

Date Submitted: 30 August 1994
Submitted By:                         _x_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other _____________________________

For questions or problems, please contact the ARM Experiment Center at
509-375-6898 or via email at dqr@arm.gov.

Platform/Measurement:
        What level data: (raw,a0,a1,b1,c1 etc): a0 (5 minute),
                                                a1 (15 and 30 minute)

    What location was the data collected at: E7, Elk Falls, KS

    Period of time in question
        Begin Date 8/9/94
        End Date   8/23/94   Time 1922 GMT

 Data should be labeled:
 ___  questionable                      ___  All data fields affected
 ___  incorrect                         _x_  Only some data fields affected
 ___  wrong calibration
 _x_  others (information only)

 Discussion of Problem:

Sometime between August 9 and 23, 1994 the ventilation fan of the
EBBR stopped; the fan guard was clogged with insect remains.  The fan was
restarted at 1922 GMT on 23 August.  Inspection of the EBBR data does not
indicate any ill affects on the calculated sensible and latent heat during
the period.  The fan may have stopped soon before the arrival of the site
operator on 23 August.  I cannot suggest flagging the data as incorrect, but
this message should still be attached to the data so that anyone who might
discover something unusual may have some basis for explaining it.

The quantities that are normally affected by stoppage of the ventilation to
the temperature and relative humidity sensors are:

5 minute:  tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, and vp_bot

15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l

30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, bowen, e, h

Other observations/measurements impacted by this problem:

see list above

Suggested Corrections of the Problem: (e.g. change calibration factor and
recompute, flag data with this comment, etc.)

Enclose the message above with the data if possible.

Data Processing Notes                Date

-------------------------------------------------------------------
END

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• soil_heat_capacity_5
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

Intermittent Stopped or Slowed Aspirator Fans

DQR No:                               Platform: EBBR

Subject: Intermittent Stopped or Slowed Aspirator Fans

Date Submitted: 26 September 1994
Submitted By:                         _x_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other _____________________________

For questions or problems, please contact the ARM Experiment Center at
509-375-6898 or via email at dqr@arm.gov.

Platform/Measurement: EBBR/T and RH
        What level data: (raw,a0,a1,b1,c1 etc): a0 (5 minute),
                                                a1 (15 and 30 minute)

    What location was the data collected at: E7, Elk Falls, KS

    Period of time in question
        Begin Date 8/18/94   Time 1200 GMT
        End Date   9/21/94   Time 1530 GMT

 Data should be labeled:
 ___  questionable                      ___  All data fields affected
 _X_  incorrect                         _x_  Only some data fields affected
 ___  wrong calibration
 ___  others (information only)

 Discussion of Problem:

Around 1200 GMT on September 21, 1994 the aspirator fans of the EBBR
intermittently stopped or slowed significantly; the fans were clogged with
insect remains and spider webs.  Only a few weeks earlier the same
situation occurred at this EBBR.  The 15 minute data reveals that most of
the time the right aspirator fan was the one that failed to work, although
there are times that it appears that the left fan was either not working
also or was the only one not working.  Unlike the previous occurrence, the
30 minute flux data does show some indication of this problem, although, as
usual, it is far easier to see in the 15 minute data.  The fans were cleaned
out and restarted at 1530 GMT on September 21, 1994.  The data listed below
should be flagged as incorrect for the period shown above.

5 minute:  tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, and vp_bot

15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l

30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, bowen, e, h

Other observations/measurements impacted by this problem:

see list above

Suggested Corrections of the Problem: (e.g. change calibration factor and
recompute, flag data with this comment, etc.)

Enclose the message above with the data if possible.

Data Processing Notes                Date

-------------------------------------------------------------------
END

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• temp_air_bottom
• corr_soil_heat_flow_4
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - Net Radiometer not level

Sometime between 0000 and 1200 GMT on October 20, 1994, the net radiometer
support of the EBBR at E7 was bent down at about a 30 degree angle, probably
by migrating birds.  A couple of DQRs have been issued by me indicating other
extended facilities at which birds have caused incorrect data from net
radiometers.  The net radiometer support was probably loose to begin with.
The effect can be easily seen in the data, when comparison is made to the
EBBR data at Ashton, KS.  Since the net radiometer support extends south
from the EBBR, the net radiation values are high during the period above,
leading to incorrect values of latent and sensible heat fluxes.  Until the
net radiometer was levelled on November 1, 1994, the net radiation was
approximately 26% high at solar noon, although it may have been incorrect
by a smaller percentage at night.  From October 22 through 28 the half hour
of data nearest solar noon averaged 497 watts per meter squared at Elk
Falls and only 396 at Ashton.  During the period listed above, the following
data are incorrect and cannot be recalculated:

5 minute:  q

15 minute: mv_q

30 minute: q, h, e

Science Team members or others using the data should recognize that the
flux data is not correct for this fairly lengthy time period.

• net_radiation_mv

• Radiation, net(net_radiation)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• Radiation, net(net_radiation)

SGP/EBBR/E7 - Radiation Shield Problem

The right radiation shield was out of position or off during the period of
time indicated.  This may or may not have occurred as a result of preventative
maintenance on November 15.  All air and humidity probe temperatures (except
the reference temperature), relative humidities, vapor pressures, Bowen ratio,
sensible heat flux, and latent heat flux during this period are questionable.
During a large part of the period the resultant sensible and latent heat fluxes
look reasonable.  However, during part of the period, the difference in
relative humidity between the two EBBR levels appears to be much too large.
Unusual differences in temperatures are not as obvious.

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

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

SGP/EBBR/E7 - Water in Net Radiometer

A small amount of water collected in the bottom dome of the net radiometer.
It is not obvious that it had been there for more than several hours before
the site operators arrived for a preventative maintenance visit and there
is no evidence of any effects on the data (there had been heavy cloudiness
for the previous several hours).  The only incorrect data occurred
during the removal of the water.  The dome was not replaced.  The following
data is incorrect between 1600 and 1630 GMT on December 14, 1994:

5 minute:  q

15 minute: mv_q

30 minute: q, e, h

• net_radiation_mv

• Radiation, net(net_radiation)
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

• Radiation, net(net_radiation)

Annual calibration changeout

DQR No:                               Platform: EBBR

Subject:  Annual Calibration Changeout - E7, Elk Falls, KS

Date Submitted:  December 21, 1995
Submitted By:                         _x_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other _____________________________

For questions or problems, please contact the ARM Experiment Center at
509-375-6898 or via email at dqr@arm.gov.

Platform/Measurement: EBBR/Changeout
        What level data: (raw,a0,a1,b1,c1 etc): a1 (5 and 30 minute)
                                                a0 (15 minute)

    What location was the data collected at: E7, Elk Falls, KS

    Period of time in question
        Begin Date 11/02/95   Time 1530 GMT
        End Date   11/28/95   Time 2200 GMT

 Data should be labeled:
 ___  questionable                      ___  All data fields affected
                                             part of the period)
 _X_  incorrect                         _X_  Only some data fields affected
 ___  wrong calibration
 ___  others

 Discussion of Problem:

On November 2, 1995 the changeout for annual calibration occurred at E7,
Elk Falls, KS.  SEBS unit 9 was removed and unit 12 was installed.  Between
1530 and 1930 GMT no data was collected.  The soil moisture probes were
shipped dry from the vendor.  Site operations did not realize this and
installed them without wetting the bags that hold the soil moisture probes
in soil.  The water did not penetrate into the bags of soil.  Therefore, some
soil moisture probe outputs were initially offscale.  Different soil
moisture probes indicated offscale at different times until 28 November
1995.  On 28 November, site operations soaked the soil moisture probe bags
with water, causing the soil moisture data values to come on scale.

No data was collected during the time of the installation on November 2,
between 1530 and 1930 GMT.

The incorrect soil moisture after SEBS 12 was installed affected numerous
data values including:

15 minute:  rr_sm1, rr_sm2, rr_sm3, rr_sm4, rr_sm5

30 minute:  h, e, ave_shf, shf1, shf2, shf3, shf4, shf5, sm1, sm2, sm3,
            sm4, sm5, cs1, cs2, cs3, cs4, cs5, ces1, ces2, ces3, ces4,
            g1, g2, g3, g4, g5.

Inspection of the data readily shows which soil moisture probes were
offscale.  When one or more were offscale, the e, h, and ave_shf data and the
respective numbered data variables above were incorrect.  h and e can be
recalculated using only correct soil moisture probe values and equations shown
in many previous DQRs.


Other observations/measurements impacted by this problem:

see above

Suggested Corrections of the Problem: (e.g. change calibration factor and
recompute, flag data with this comment, etc.)

Flag data with this comment.

Data Processing Notes                Date

-------------------------------------------------------------------
END

• wdir_vec_std
• Radiation, net(net_radiation)
• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_moisture_2
• soil_moisture_3
• soil_heat_flow_2
• soil_moisture_4
• soil_moisture_5
• lat
• Wind speed vector mean(wspd_vec_mean)
• soil_moisture_1
• Barometric Pressure(atmos_pressure)
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• surface_soil_heat_flux_3
• soil_heat_capacity_4
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• home_signal_30
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_air_top
• temp_trh_bottom
• temp_trh_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - Wind Speed Cups Frozen

Freezing rain, snow, and below freezing conditions during 19 January
1995 caused the wind speed sensor cups to freeze in a stopped state at E7,
Elk Falls, KS on 19 January 1995.  When temperatures rose to above freezing
later that day, the ice thawed and the cups turned freely again.

Measurements affected by the stalled wind speed sensor include:

5 minute:  wind_s, res_ws

15 minute: wind_s

30 minute: wind_s, res_ws

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

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

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

SGP/EBBR/E7 - Wind Speed Cups Frozen

Freezing rain, snow, and below freezing conditions during 23 January 
1996 caused the wind speed sensor cups to freeze in a stopped state at E7, 
Elk Falls, KS on 23 January 1996.  When temperatures rose to above freezing  
on 24 January 1996, the ice thawed and the cups turned freely again. 

Measurements affected by the stalled wind speed sensor include:

5 minute:  wind_s, res_ws

15 minute: wind_s

30 minute: wind_s, res_ws

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

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

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

SGP/EBBR/E7 - 3-month check

During EBBR 3-month checks the Automatic Exchange Mechanism is disabled
(reflected by home signals near zero) so that the two aspirator units can be
placed at the same height.  The measurements during this period, at least,
do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h),
or latent heat flux (e), nor do the air temperature and relative humidity
measurements indicate gradients.  Checks performed before or after the AEM
is disabled also lead to some incorrect data.  The period of incorrect
data for the EBBR is listed above; data times affected do not include the
beginning time and do include the ending time (data files are denoted by
the end time).

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

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

SGP/EBBR/E7 - EBBR 3-Month Checks - 10 EFs

During EBBR 3-month checks the Automatic Exchange Mechanism is disabled 
(reflected by home signals near zero) so that the two aspirator units
can be placed at the same height.  The measurements during these periods 
do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), 
or latent heat flux (e), nor do the air temperature and relative humidity 
measurements indicate correct gradients.  Checks performed before or after the 
AEM is disabled also lead to some incorrect data.  Incorrect 5, 15 minute and 
half hour data occurs for periods indicated.

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

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

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

SGP/EBBR/E7- Wind Speed Cups Frozen

Freezing rain, snow, and below freezing conditions during 23 January 
1996 caused the wind speed sensor cups to freeze in a stopped state at E7, 
Elk Falls, KS on 23 January 1996.  When temperatures rose to above freezing  
on 24 January 1996, the ice thawed and the cups turned freely again. 

Measurements affected by the stalled wind speed sensor include:

5 minute:  wind_s, res_ws

15 minute: wind_s

30 minute: wind_s, res_ws

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

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

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

SGP/EBBR/E7 - EBBR Biannual Checks

During EBBR 6-month checks the Automatic Exchange Mechanism is disabled 
(reflected by home signals near zero) so that the two aspirator units
can be placed at the same height.  The measurements during these periods 
do not produce correct outputs of bowen ratio (bowen), sensible heat flux (h), 
or latent heat flux (e), nor do the air temperature and relative humidity 
measurements indicate correct gradients.  Checks performed before or after the 
AEM is disabled also lead to some incorrect data.  Incorrect 5, 15 minute and 
half hour data occurs for periods indicated.

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

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

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

SGP/EBBR/E7 - EBBR Frozen Wind Speed

Wind speed cups were frozen during the indicated time periods. All 5,
15, and 30 minute data values indicated  are incorrect for the periods
listed.

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

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

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

SGP/EBBR/E7 - Right T/RH Probe Temperature Incorrect

The temperature portion of the right T/RH probe was reporting too high for
the period.   The following fields are incorrect:
 
 5 minute: thum_top, thum_bot, vp_top, vp_bot
15 minute: rr_thum-r
30 minute: thum_top, thum_bot, vp_top, vp_bot, e, h, bowen

• Raw data stream - documentation not supported

• temp_trh_right_rr

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

• temp_trh_bottom
• vapor_pressure_top
• vapor_pressure_bottom
• temp_trh_top

SGP/EBBR/E7 - Wind Speed Sensor Frozen

The wind speed sensor was frozen stalled during this period.
Data values that were affected are:

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

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

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

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

SGP/EBBR/E7 - 3-Month Check

During EBBR 3 month checks the Automatic Exchange Mechanism is disabled
(reflected by home signals near zero) so that the two aspirator units can be
placed at the same height.  The measurements during these periods 
do not produce correct outputs of bowen ratio (bowen), sensible heat flux
(h), or latent heat flux (e), nor do the air temperature and relative 
humidity measurements indicate correct gradients.  Checks performed before 
or after the AEM is disabled also lead to some incorrect data.  Incorrect 5,
15 minute and half hour data occurs for the period above.

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

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

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

SGP/EBBR/E7 - Six-Month Checks

During EBBR 6 month checks (formally called 3 month checks) the Automatic 
Exchange Mechanism is disabled (reflected by home signals near zero) so that
the two aspirator units can be placed at the same height.  The measurements
during these periods do not produce correct outputs of bowen ratio (bowen), 
sensible heat flux (h), or latent heat flux (e), nor do the air temperature
and relative humidity measurements indicate correct gradients.  Checks 
performed just before or after the AEM is disabled also lead to some 
incorrect data.  Incorrect 5, 15 minute and half hour data occurs for the 
period above.

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

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

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

SGP/EBBR/E7 - Data Incorrect Because of Recompile

All data for the 5, 15, and 30 minute periods ending at 1600 GMT are
incorrect or missing because the CR10 program was recompiled.

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

• temp_reference
• soil_heat_flow_5
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_1
• soil_heat_flow_2
• Wind speed vector mean(wspd_vec_mean)
• Barometric Pressure(atmos_pressure)
• energy_storage_change_1
• energy_storage_change_2
• energy_storage_change_5
• Heat flux, latent, at 1.5-m height, 30-min intervals(latent_heat_flux)
• energy_storage_change_3
• energy_storage_change_4
• home_signal_30
• temp_air_top
• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• alt
• Soil temperature mean 1(soil_temp_1)
• lon
• rh_top_fraction
• vapor_pressure_top
• home_signal_15
• wdir_vec_std
• Radiation, net(net_radiation)
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• lat
• soil_moisture_1
• soil_heat_capacity_1
• surface_soil_heat_flux_1
• soil_heat_capacity_2
• surface_soil_heat_flux_4
• soil_heat_capacity_5
• surface_soil_heat_flux_5
• surface_soil_heat_flux_2
• soil_heat_capacity_3
• soil_heat_capacity_4
• surface_soil_heat_flux_3
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• temp_trh_bottom
• temp_trh_top
• base_time
• bowen_ratio
• rh_bottom_fraction
• corr_soil_heat_flow_1
• time_offset
• corr_soil_heat_flow_3
• corr_soil_heat_flow_2
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• temp_air_bottom
• vapor_pressure_bottom
• Heat flux, sensible, at 1.5-m height, 30-min intervals(sensible_heat_flux)

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

SGP/EBBR/E7 - Wind Direction Data Incorrect (revised)

The wind direction sensor was iced stopped by freezing rain, 
resulting in the following values being incorrect:

5 minute:  res_ws, wind_d, sigma_wd
15 minute: mv_wind_d
30 minute: res_ws, wind_d, sigma_wd

• Raw data stream - documentation not supported

• wdir_vec_mean_mv

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

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

SGP/EBBR/E7 - EBBR E7 Wind Speed Data Incorrect

The wind speed sensor was iced stopped by freezing rain, 
resulting in the following values being incorrect:

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

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

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

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

SGP/EBBR/E7 - Wind Speed Data Incorrect

The wind speed sensor was iced stopped by freezing rain, 
resulting in the following values being incorrect:

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

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

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

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