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

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

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

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

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

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

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

Affected data are:

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

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

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

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

SGP/EBBR - EBBR E25 Thermocouple Temperatures Incorrect

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

Affected data are:

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

• latent_heat_flux
• temp_air_bottom
• bowen_ratio
• temp_air_top
• sensible_heat_flux

• temp_air_bottom
• temp_air_top

• temp_air_right
• temp_air_left

SGP/EBBR - EBBR E25 Net Radiation Incorrect

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

The affected data are:

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

• latent_heat_flux
• sensible_heat_flux
• net_radiation

• net_radiation

• net_radiation_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

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

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

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

• soil_heat_flow_1_mv

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• wspd_vec_mean
• wspd_arith_mean

• wspd_arith_mean
• wspd_vec_mean

• wspd_arith_mean

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

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

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

• soil_heat_flow_5_mv

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

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

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

• soil_heat_flow_3_mv

SGP EBBR E25 - E25 EBBR Left Aspirator Not Working

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

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

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

• rh_left_mv
• temp_air_left
• temp_trh_left_rr

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

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

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

• soil_heat_flow_1_mv

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

The data was incorrect during the 6 month checks.

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

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

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

SGP EBBR E25 - E25 EBBR Wind Direction Incorrect

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

• wdir_vec_std
• wdir_vec_mean
• wspd_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

SGP EBBR E25 - E25 EBBR Wind Direction Incorrect

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

• wdir_vec_std
• wdir_vec_mean
• wspd_vec_mean

• wdir_vec_mean
• wspd_vec_mean
• wdir_vec_std

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

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

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

• soil_heat_flow_3_mv

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

The #1 soil heat flow sensor developed a +60 W m-2 bias
and thus indicated higher soil heat flows than the other
sensors.  This results in slightly higher sensible and latent heat
fluxes than is correct. The sensor was replaced on 2/21/01.

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

• soil_heat_flow_1_mv

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

Soil heat flow #3 was large negative during the indicated period.

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

• soil_heat_flow_3_mv

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

Soil heat flow #1 was large negative or large positive during the
indicated period.

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

• soil_heat_flow_1_mv

SGP/EBBR/E25 - Reprocess: Soil Heat Flow #5 Negative Offset

Soil heat flow 5 was either too large negative or negative when it should have been 
positive; the cause of the negative offset is unknown, but is often the result of a failed 
J-panel over-voltage protection device.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:

ave_shf = (g1 + g2 + g3 + g4)/4

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

h = -(q + e + ave_shf)

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

SGP/EBBR/E25 - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the 
EBBR 30 minute netcdf header have been incorrect from the beginning 
of processing the data into netcdf files.  The correct units are 
MJ/m^3/C.

This does not affect the data quality.

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5

SGP/EBBR/E25  - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4,
   cs5) in the EBBR 30 minute netcdf header have been 
   incorrect from the beginning of processing the data
   into netcdf files.  The correct units are MJ/m^3/C.
   
   This does not affect the data quality.

(NOTE: The actual begin date of some of these data
streams is as early as 5/22/97.  This DQR applies to
all 30m EBBR data.)

• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 3(cs3)

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• soil_heat_capacity_5

SGP/EBBR/E25 - metadata errors

During the entire span of EBBR.E25 data, the cdf data files contained a few minor global 
metadata errors. These errors do not affect the data values or quality.

The errors include:
* incomplete sensor location information
* incomplete installation date information
* soil moisture documented as "by volume" should have read "gravimetric"

• base time(base_time)

• base time(base_time)