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

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

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• Wind speed vector mean(wspd_vec_mean)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• Net radiation(net_radiation)
• East longitude(lon)
• 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
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• base_time
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• wdir_vec_std
• time_offset
• soil_heat_capacity_5
• home_signal_15
• rh_top_fraction
• Soil temperature mean 1(soil_temp_1)
• Wind direction vector mean(wdir_vec_mean)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Atmospheric pressure(atmos_pressure)
• soil_heat_flow_1
• Latent heat flux(latent_heat_flux)
• energy_storage_change_5
• soil_heat_flow_2
• soil_heat_flow_3
• Altitude above mean sea level(alt)
• 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
• home_signal_30
• vapor_pressure_bottom
• bowen_ratio
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• North latitude(lat)

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
• Soil temperature mean 1(soil_temp_1)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• soil_heat_flow_1
• energy_storage_change_5
• Latent heat flux(latent_heat_flux)
• soil_heat_flow_2
• soil_heat_flow_3
• soil_heat_flow_4
• soil_heat_flow_5
• temp_trh_bottom
• temp_trh_top
• surface_soil_heat_flux_4
• surface_soil_heat_flux_5
• vapor_pressure_top
• temp_air_bottom
• corr_soil_heat_flow_5
• corr_soil_heat_flow_4
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_2
• corr_soil_heat_flow_1
• surface_soil_heat_flux_3
• surface_soil_heat_flux_2
• temp_reference
• energy_storage_change_4
• energy_storage_change_3
• energy_storage_change_2
• energy_storage_change_1
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• vapor_pressure_bottom
• soil_moisture_5
• bowen_ratio
• soil_heat_capacity_5
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)

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(latent_heat_flux)
• temp_air_bottom
• bowen_ratio
• temp_air_top
• Sensible heat flux(sensible_heat_flux)

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(latent_heat_flux)
• Sensible heat flux(sensible_heat_flux)
• Net radiation(net_radiation)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

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

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

SGP/EBBR/E25 - EBBR E25 Wind Speed Iced

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

• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(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(latent_heat_flux)
• corr_soil_heat_flow_5
• soil_heat_flow_5
• surface_soil_heat_flux_5
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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(latent_heat_flux)
• soil_heat_flow_3
• corr_soil_heat_flow_3
• surface_soil_heat_flux_3
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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.

• Latent heat flux(latent_heat_flux)
• rh_top_fraction
• temp_air_bottom
• vapor_pressure_bottom
• rh_bottom_fraction
• bowen_ratio
• temp_trh_top
• temp_trh_bottom
• temp_air_top
• vapor_pressure_top
• Sensible heat flux(sensible_heat_flux)

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(latent_heat_flux)
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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
• Wind speed vector mean(wspd_vec_mean)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• Net radiation(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
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• wdir_vec_std
• soil_heat_capacity_5
• rh_top_fraction
• Soil temperature mean 1(soil_temp_1)
• Wind direction vector mean(wdir_vec_mean)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Atmospheric pressure(atmos_pressure)
• Latent heat flux(latent_heat_flux)
• soil_heat_flow_1
• energy_storage_change_5
• 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
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)

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
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

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
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

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(latent_heat_flux)
• soil_heat_flow_3
• corr_soil_heat_flow_3
• surface_soil_heat_flux_3
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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(latent_heat_flux)
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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

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

• Latent heat flux(latent_heat_flux)
• soil_heat_flow_3
• corr_soil_heat_flow_3
• surface_soil_heat_flux_3
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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(latent_heat_flux)
• surface_soil_heat_flux_1
• corr_soil_heat_flow_1
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(sensible_heat_flux)

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(latent_heat_flux)
• corr_soil_heat_flow_5
• soil_heat_flow_5
• surface_soil_heat_flux_5
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Sensible heat flux(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_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

SGP/EBBR/E25- 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 vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/EBBR/E25 - Bowen Ratio Usually Negative - Fluxes Incorrect

Submitted By:                         _x_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other

Platform/Measurement: EBBR/Bowen ratio, sensible and latent heat fluxes
	What level data: (raw,a0,a1,b1,c1 etc): a1 (15 and 30 minute)

  What location was the data collected at: E25, Seminole, OK

  Period of time in question (Times vary for different days)

 	Begin Date 10/22/97  and on

Discussion of Problem:

Bowen ratio is normally negative, as if it is somehow being biased.
Latent and sensible heat fluxes are apparently incorrect much of the
time, especially during the daytime.  All supporting measurements seem
to be incorrect; therefore the error must be occurring in the measured
T and RH gradients.  This situation has occured since the EBBR unit was
installed on 22 October 1997.  A work request has been submitted for a
full six month check to be performed on the system.  Hopefully the checks
will point to the source of the problem.

The right relative humidity was biased.  The right T/RH probe was
replaced on 4/22/98 at 1700 GMT, but it had a more defective RH sensor
in it, causing right RH to sit at 112-114 percent.  This probe was
itself replaced on 5/6/98 at 1645 GMT, thereby taking care of the negative
Bowen ratio problem.

• Latent heat flux(latent_heat_flux)
• rh_top_fraction
• vapor_pressure_bottom
• rh_bottom_fraction
• bowen_ratio
• vapor_pressure_top
• Sensible heat flux(sensible_heat_flux)

SGP/EBBR/E25 - Right Humidity Incorrect

On 24 April 1998 the humidity reported by the right T/RH probe soared to
112% to 114% and remained there until replacement of the probe on 6 May
1998.  Sensible and latent heat fluxes and some humidity and vapor pressure
data for the period are incorrect. The data fields that are incorrect are:

 5 minute: hum_top, hum_bot, vp_top, vp_bot
15 minute: mv_hum_r
30 minute: hum_top, hum_bot, vp_top, vp_bot, bowen, e, h

• Latent heat flux(latent_heat_flux)
• rh_top_fraction
• vapor_pressure_bottom
• rh_bottom_fraction
• bowen_ratio
• vapor_pressure_top
• Sensible heat flux(sensible_heat_flux)

SGP/EBBR/E25 - 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 indicated.

• Latent heat flux(latent_heat_flux)
• rh_top_fraction
• temp_air_bottom
• vapor_pressure_bottom
• rh_bottom_fraction
• bowen_ratio
• temp_trh_top
• temp_trh_bottom
• temp_air_top
• vapor_pressure_top
• Sensible heat flux(sensible_heat_flux)

SGP/EBBR/E25 - Data Incorrect

On 15 July 1998 the EBBR AEM was moved to a higher position.
The complexity of the task required that the AEM be disabled for
what amounted to two half hour average periods, during which the 
temperatures, relative humidities, vapor pressures, Bowen ratio,
and latent and sensible heat fluxes were all incorrect.

• Latent heat flux(latent_heat_flux)
• rh_top_fraction
• temp_air_bottom
• vapor_pressure_bottom
• rh_bottom_fraction
• bowen_ratio
• temp_trh_top
• temp_trh_bottom
• temp_air_top
• vapor_pressure_top
• Sensible heat flux(sensible_heat_flux)

SGP/EBBR/E25 - Data Incorrect

On 15 July 1998 the EBBR CR10 program was reloaded with changed
calibration coefficients for a new soil temperature probe #1.
Therefore the 5, 15, and 30 minute data for 1700 GMT are incorrect.

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• Wind speed vector mean(wspd_vec_mean)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• Net radiation(net_radiation)
• East longitude(lon)
• 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
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• base_time
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• wdir_vec_std
• time_offset
• soil_heat_capacity_5
• home_signal_15
• rh_top_fraction
• Soil temperature mean 1(soil_temp_1)
• Wind direction vector mean(wdir_vec_mean)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Atmospheric pressure(atmos_pressure)
• soil_heat_flow_1
• Latent heat flux(latent_heat_flux)
• energy_storage_change_5
• soil_heat_flow_2
• soil_heat_flow_3
• Altitude above mean sea level(alt)
• 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
• home_signal_30
• vapor_pressure_bottom
• bowen_ratio
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• North latitude(lat)

SGP/EBBR/E25 - All Data Incorrect (zeros)

All data values are zero and incorrect; reason unknown.

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• Wind speed vector mean(wspd_vec_mean)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• Net radiation(net_radiation)
• East longitude(lon)
• 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
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• base_time
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• wdir_vec_std
• time_offset
• soil_heat_capacity_5
• home_signal_15
• rh_top_fraction
• Soil temperature mean 1(soil_temp_1)
• Wind direction vector mean(wdir_vec_mean)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Atmospheric pressure(atmos_pressure)
• soil_heat_flow_1
• Latent heat flux(latent_heat_flux)
• energy_storage_change_5
• soil_heat_flow_2
• soil_heat_flow_3
• Altitude above mean sea level(alt)
• 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
• home_signal_30
• vapor_pressure_bottom
• bowen_ratio
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• North latitude(lat)

SGP/EBBR/E25 - Wind Direction and Speed Data Incorrect

The wind direction and speed sensors were iced stopped by freezing rain, 
resulting in the following values being incorrect:

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

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

SGP/EBBR/E25 - Wind Direction Data Incorrect

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

• wdir_vec_std
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

SGP/EBBR/E25 - 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 vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/EBBR/E25 - 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 vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/EBBR/E25 - CR10 Program Revision (Vs. 7)

The data from this period was either missing during and after the
installation of the revised version 7 of the CR10 program. The new
program version has made a colossal improvement in the flux data.

Please refer back to DQR D980117.3 and PIF P971218.1, which describe
the incorrect way in which calculations were being performed by the
previous CR10 program version.

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• Wind speed vector mean(wspd_vec_mean)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• Net radiation(net_radiation)
• East longitude(lon)
• 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
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• base_time
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• wdir_vec_std
• time_offset
• soil_heat_capacity_5
• home_signal_15
• rh_top_fraction
• Soil temperature mean 1(soil_temp_1)
• Wind direction vector mean(wdir_vec_mean)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Atmospheric pressure(atmos_pressure)
• soil_heat_flow_1
• Latent heat flux(latent_heat_flux)
• energy_storage_change_5
• soil_heat_flow_2
• soil_heat_flow_3
• Altitude above mean sea level(alt)
• 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
• home_signal_30
• vapor_pressure_bottom
• bowen_ratio
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• North latitude(lat)

SGP/EBBR/E25 - Data Incorrect During PM

All data was incorrect during some PM work.

• soil_heat_capacity_4
• soil_heat_capacity_3
• soil_heat_capacity_2
• soil_heat_capacity_1
• Wind speed vector mean(wspd_vec_mean)
• temp_air_top
• Sensible heat flux(sensible_heat_flux)
• Net radiation(net_radiation)
• East longitude(lon)
• 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
• corr_soil_heat_flow_3
• surface_soil_heat_flux_1
• base_time
• corr_soil_heat_flow_2
• surface_soil_heat_flux_3
• corr_soil_heat_flow_1
• surface_soil_heat_flux_2
• temp_reference
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• soil_moisture_1
• soil_moisture_2
• soil_moisture_3
• soil_moisture_4
• soil_moisture_5
• wdir_vec_std
• time_offset
• soil_heat_capacity_5
• home_signal_15
• rh_top_fraction
• Soil temperature mean 1(soil_temp_1)
• Wind direction vector mean(wdir_vec_mean)
• Soil temperature mean 2(soil_temp_2)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature mean 4(soil_temp_4)
• Soil temperature mean 5(soil_temp_5)
• Atmospheric pressure(atmos_pressure)
• soil_heat_flow_1
• Latent heat flux(latent_heat_flux)
• energy_storage_change_5
• soil_heat_flow_2
• soil_heat_flow_3
• Altitude above mean sea level(alt)
• 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
• home_signal_30
• vapor_pressure_bottom
• bowen_ratio
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• North latitude(lat)

SGP/EBBR/E25 - Data Incorrect During PM

Air and humidity probe temperatures and the reference temperature were
incorrect during this period because of the PM work taking place.

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

SGP/EBBR/E25 - Data Incorrect During PM

Right and left air temperatures and top and bottom air temperatures were
incorrect during this period because of the PM work taking place.  
Sensible and latent heat fluxes and Bowen ratio were therefore also 
incorrect.

• Latent heat flux(latent_heat_flux)
• temp_air_bottom
• bowen_ratio
• temp_air_top
• Sensible heat flux(sensible_heat_flux)