SGP/EBBR/E20 - Soil Moisture #4 and Soil Temperature #4 Incorrect

Failures of a multiplexer channel and a J-panel channel caused soil temperature #4 and 
soil moisture #4 to spike and drift at times.  Replacement of the failed equipment solved 
the problem.

• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• Soil heat capacity 4(cs4)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• soil heat flow at the surface 4(g4)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 4(ts4)
• corrected sensible heat flux(h)

• Soil temperature 4(rr_ts4)
• Soil moisture 4(r_sm4)

SGP/EBBR/E9 - Wind Speed Threshhold Low

When the wind speed is very low, the anemometer cups stop turning.  Wind
speeds above the threshhold may be underestimated.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E13  - Wind Speed Frozen Stopped By Ice Storm

An ice storm froze the wind speed sensor to a stopped condition.

The wind speed and residual wind speed measurements are incorrect.

This sensor failure does not affect the sensible and latent heat fluxes.

• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E15  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E18  - 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.

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E19  - 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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E20  - 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.

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E22  - 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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E26  - 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.

• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E27  - 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.

• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E2  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E4  - 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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E8  - 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.

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E9  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E12  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E2  - Wind Direction Frozen Stopped By Ice Storm

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

SGP/EBBR/E20  - Wind Direction Frozen Stopped By Ice Storm

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)

• Wind direction (relative to true north)(mv_wind_d)

• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)

SGP/EBBR/E22  - Wind Direction Frozen Stopped By Ice Storm

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

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E26  - Wind Direction Frozen Stopped By Ice Storm

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

• Wind direction (relative to true north)(mv_wind_d)

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E27  - Wind Direction Frozen Stopped By Ice Storm

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

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E4  - Wind Direction Frozen Stopped By Ice Storm

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

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E8  - Wind Direction Frozen Stopped By Ice Storm

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

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E9  - Wind Direction Frozen Stopped By Ice Storm

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

• Wind direction (relative to true north)(mv_wind_d)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E12  - Wind Direction Frozen Stopped By Ice Storm

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E13  - Wind Direction Frozen Stopped By Ice Storm

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

• Wind direction (relative to true north)(mv_wind_d)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)

SGP/EBBR/E15  - Wind Direction Frozen Stopped By Ice Storm

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

SGP/EBBR/E18  - Wind Direction Frozen Stopped By Ice Storm

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E19  - Wind Direction Frozen Stopped By Ice Storm

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E26 - Aging Pressure Sensor Output Changes
With Supply Voltage

The E26 EBBR pressure sensor experienced the poor internal voltage regulation problem 
experienced at other sites last year.  Aging of the internal voltage regulator caused the 
pressure output to drop by 1-2 kPa (0.1-0.5 kPa is normal) when the Sun rose and the solar 
panel goosed the battery voltage up.  

The sensible and latent heat fluxes were not significantly affected.

• Atmospheric pressure(mv_pres)

• pressure at constant pressure surface(pres)

• pressure at constant pressure surface(pres)

SGP/EBBR/E27 - Soil Moisture #5 Incorrect

The wrong CR10 program loaded from the storage module on 9/15/04.  During the previous 
change of program, an attempt was made to store the new program in the storage module; site 
ops techs did not notice that this attempt failed, leaving the old program in the storage 
module.  When power was cyled on 9/15/04, the old program with flat sm5 coefficients 
loaded into the CR10.  The "flat" coefficients resulted in the sm5 soil moisture hovering 
around 30%.

15 minute raw sm5 resistances were correct.

Average soil heat flow, sensible heat flux, and latent heat flux were not
significantly affected and so are not included in the list of incorrect measurements.

• Soil moisture 5 (mass water/mass dry soil)(sm5)

SGP/EBBR/E4  - Wind Direction Frozen Stopped By Ice

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

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E8  - 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.

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E8  - Wind Direction Frozen Stopped By Ice

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

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E9  - Wind Direction Frozen Stopped By Ice

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

• Wind direction (relative to true north)(mv_wind_d)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E9  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E12  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E12  - Wind Direction Frozen Stopped By Ice

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E15  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

SGP/EBBR/E15  - Wind Direction Frozen Stopped By Ice

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

SGP/EBBR/E19  - Wind Speed Constant

Wind Speed was constant at 5 m/s during this period; the reason is unknown.

This sensor failure does not affect the sensible and latent heat fluxes.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• scalar wind speed(wind_s)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E22  - 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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E22  - Wind Direction Frozen Stopped By Ice

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

• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)

SGP/EBBR/E2  - 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.

• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

SGP/EBBR/E2  - Wind Direction Frozen Stopped By Ice

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

• Wind direction (relative to true north)(mv_wind_d)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

SGP/EBBR/E4  - 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.

• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)

• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)

SGP/EBBR/E4 - Wind Speed and Direction Frozen by Ice Storm

The wind speed and direction sensors were frozen during an ice storm on 2/24/05.

• scalar wind speed(wind_s)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Resultant wind speed(res_ws)

• wind direction (relative to true north)(wind_d)
• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• Wind direction (relative to true north)(mv_wind_d)
• scalar wind speed(wind_s)

SGP/EBBR/E12 - Wind Speed and Direction Frozen by Ice Storm

The wind speed and direction sensors were frozen by ice from and ice storm.

• Wind direction (relative to true north)(mv_wind_d)
• scalar wind speed(wind_s)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• scalar wind speed(wind_s)
• Resultant wind speed(res_ws)
• wind direction (relative to true north)(wind_d)

• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• scalar wind speed(wind_s)
• wind direction (relative to true north)(wind_d)

SGP/EBBR/E22 - Net Radiation Too Low - Top Dome Broken

Net radiation values were too low because of a broken top dome.

• specific humidity(q)

• corrected sensible heat flux(h)
• specific humidity(q)
• latent heat flux(e)

• Net radiation(mv_q)

SGP/EBBR/E15 - Soil Heat Flows Undermeasured, and Latent and Sensible Heat Fluxes 
Overstimated

Use of the wrong soil type soil moisture coefficients caused soil moisture to be greatly 
undermeasured (a typical wrong value was 4% instead of the correct 17%), soil heat flows 
to be undermeasured, and sensible and latent heat fluxes to be overestimated.

Soil heat flow plate outputs were undermeasured by up to 10%, change of energy storage was 
undermeasured by up to 80% and total soil heat flow was undermeasured by up to 50% as a 
result. This would result in approximately a 5% overestimation of both sensible and 
latent heat fluxes.

• Soil moisture 3 (mass water/mass dry soil)(sm3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• soil heat flow at the surface 3(g3)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 5(cs5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• latent heat flux(e)
• Soil moisture 1 (mass water/mass dry soil)(sm1)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• soil heat flow at the surface 5(g5)
• Soil heat capacity 3(cs3)
• Soil moisture 4 (mass water/mass dry soil)(sm4)
• soil heat flow at the surface 4(g4)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 4(cs4)
• soil heat flow at the surface 2(g2)
• Soil heat capacity 2(cs2)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• soil heat flow at the surface 1(g1)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• Soil heat capacity 1(cs1)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)
• Soil moisture 5 (mass water/mass dry soil)(sm5)
• 0-5 cm change in soil heat storage with time, site 2(ces2)

SGP/EBBR/E19 - Reprocess: Negative Net Rad calibrations

The calibration for negative net radiation was incorrectly entered in the datalogger 
program.

• specific humidity(q)

• corrected sensible heat flux(h)
• latent heat flux(e)
• specific humidity(q)

SGP/EBBR/E26 - Incorrect soil type coefficients used

The soil type coefficents for soil moisture were incorrect from the day
of the system installation on, making soil moisture values too large.

As a result, soil heat flows were overmeasured, and sensible and latent heat fluxes were 
underestimated.

• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 1(cs1)
• soil heat flow at the surface 1(g1)
• Soil heat capacity 4(cs4)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• Soil moisture 5 (mass water/mass dry soil)(sm5)
• corrected sensible heat flux(h)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• latent heat flux(e)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• soil heat flow at the surface 2(g2)
• Soil moisture 3 (mass water/mass dry soil)(sm3)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 5(cs5)
• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• soil heat flow at the surface 5(g5)
• Soil moisture 1 (mass water/mass dry soil)(sm1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• average surface soil heat flow at the surface(ave_shf)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• soil heat flow at the surface 3(g3)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• soil heat flow at the surface 4(g4)
• 0-5 cm change in soil heat storage with time, site 2(ces2)

SGP/EBBR/E7 - Wrong Datalogger Program

The wrong version 9 datalogger program (unit 12 instead of 13) was installed
during the period listed, causing soil heat flows to be 2 to 3 W m-2 too
high, pressure to be 0.35 kPa too high, and soil moistures to be 10% too low.

Effects on the sensible and latent heat flow are much smaller than the system error.

• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• Soil moisture 3 (mass water/mass dry soil)(sm3)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• Soil moisture 1 (mass water/mass dry soil)(sm1)
• soil heat flow at the surface 3(g3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• soil heat flow at the surface 2(g2)
• Soil heat capacity 1(cs1)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• soil heat flow at the surface 1(g1)
• average surface soil heat flow at the surface(ave_shf)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• soil heat flow at the surface 4(g4)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Soil heat capacity 5(cs5)
• pressure at constant pressure surface(pres)
• Soil moisture 5 (mass water/mass dry soil)(sm5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• soil heat flow at the surface 5(g5)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• Soil heat capacity 2(cs2)

SGP/EBBR/E20 - Wrong Datalogger Program Installed

ts4 went offscale and sm4 dropped to a constant 16% when a "new" program
was installed on 3/30/05.  The wrong program was installed.

Because ts4 did not change with time, it did not mess up the calculation
of e and h.  e and h are slightly overestimated, but only by about 1%,
far less than the system error. This is a rare type of instrument problem where the 
concequences are minimal.

Therefore, e and h are not listed as incorrect in this DQR and are still usable during the 
stated period.

• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• Soil heat capacity 4(cs4)
• soil heat flow at the surface 4(g4)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 4(ts4)

SGP/EBBR/E4 - Soil Temperature #5 Spiking Upwards

Soil temperature #5 experienced some erratic behavior during nighttime, spiking upwards 
slightly at times (mouse activity?).  This caused soil moisture #5 to be corrected 
downwards very slightly.

• 0-5 cm integrated soil temperature, site 5(ts5)
• Soil moisture 5 (mass water/mass dry soil)(sm5)

SGP/EBBR/E20 - Temp. of thum_left Incorrect At Times

The temperature portion of the left T/RH probe temperature spiked at times.  This was 
caused by a faulty surge protector in the J-Panel.

• bottom vapor pressure(vp_bot)
• temperature of the top humidity sensor chamber(thum_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• top vapor pressure(vp_top)
• corrected sensible heat flux(h)

• Temperature of left humidity sensor chamber(rr_thum_l)

• temperature of the bottom humidity sensor chamber(thum_bot)
• temperature of the top humidity sensor chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top vapor pressure(vp_top)

SGP/EBBR/E8 - Battery Voltage Problem

Battery voltage was too low to give correct data.

• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 0-5 cm integrated soil temperature, site 2(ts1)
• Soil moisture 3 (mass water/mass dry soil)(sm3)
• scalar wind speed(wind_s)
• specific humidity(q)
• bottom air temperature(tair_bot)
• soil heat flow at the surface 4(g4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• temperature of the bottom humidity sensor chamber(thum_bot)
• soil heat flow at the surface 3(g3)
• 5 cm soil heat flow, site 4(shf4)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• Soil moisture 1 (mass water/mass dry soil)(sm1)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Westernmost west longitude for Zeb(lon)
• bottom relative humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• 5 cm soil heat flow, site 5(shf5)
• Northernmost north latitude for Zeb(lat)
• 5 cm soil heat flow, site 3(shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• soil heat flow at the surface 2(g2)
• Soil moisture 5 (mass water/mass dry soil)(sm5)
• 0-5 cm integrated soil temperature, site 3(ts3)
• bottom vapor pressure(vp_bot)
• soil heat flow at the surface 5(g5)
• Time offset from base_time(base_time)
• latent heat flux(e)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• 0-5 cm integrated soil temperature, site 2(ts2)
• top air temperature(tair_top)
• temperature of the top humidity sensor chamber(thum_top)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 5(cs5)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• top relative humidity(hum_top)
• corrected sensible heat flux(h)
• Resultant wind speed(res_ws)
• Reference Thermistor Temperature(tref)
• Soil heat capacity 3(cs3)
• soil heat flow at the surface 1(g1)
• average surface soil heat flow at the surface(ave_shf)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• 5 cm soil heat flow, site 2(shf2)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• top vapor pressure(vp_top)
• 5 cm soil heat flow, site 1(shf1)
• altitude above sea levelaltunits(alt)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 2(cs2)
• Time offset of tweaks from base_time(time_offset)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Soil heat capacity 1(cs1)
• wind direction (relative to true north)(wind_d)
• pressure at constant pressure surface(pres)

• temperature of the top humidity sensor chamber(thum_top)
• bottom vapor pressure(vp_bot)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• Time offset of tweaks from base_time(time_offset)
• Time offset from base_time(base_time)
• temperature of the bottom humidity sensor chamber(thum_bot)
• Time offset from midnight GMT(time)
• bottom relative humidity(hum_bot)
• specific humidity(q)
• Northernmost north latitude for Zeb(lat)
• top relative humidity(hum_top)
• top vapor pressure(vp_top)
• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)
• Home signal(home)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• pressure at constant pressure surface(pres)
• top air temperature(tair_top)
• Westernmost west longitude for Zeb(lon)
• altitude above sea levelaltunits(alt)

• Soil heat flow 2(mv_hft2)
• Soil heat flow 3(mv_hft3)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Time offset from base_time(base_time)
• altitude above sea levelaltunits(alt)
• Soil heat flow 1(mv_hft1)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Atmospheric pressure(mv_pres)
• Time offset of tweaks from base_time(time_offset)
• Battery(bat)
• scalar wind speed(wind_s)
• Soil moisture 5(r_sm5)
• Wind direction (relative to true north)(mv_wind_d)
• Soil temperature 3(rr_ts3)
• Soil heat flow 4(mv_hft4)
• Net radiation(mv_q)
• Left air temperature(tair_l)
• Soil heat flow 5(mv_hft5)
• Reference temperature(rr_tref)
• Soil temperature 1(rr_ts1)
• Soil moisture 1(r_sm1)
• Northernmost north latitude for Zeb(lat)
• Soil temperature 5(rr_ts5)
• Soil temperature 4(rr_ts4)
• Signature(signature)
• Soil temperature 2(rr_ts2)
• Soil moisture 3(r_sm3)
• Home signal(mv_home)
• Right air temperature(tair_r)
• Right relative humidity(mv_hum_r)
• Westernmost west longitude for Zeb(lon)
• Soil moisture 2(r_sm2)
• Soil moisture 4(r_sm4)

SGP/EBBR/E27 - SM2 Coefficients Incorect

Soil Moisture #2 coefficients in the CR10 datalogger program were incorrect during the 
time
that an old program version was installed.

• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• Soil heat capacity 2(cs2)
• soil heat flow at the surface 2(g2)
• 0-5 cm change in soil heat storage with time, site 2(ces2)

• Soil moisture 2(r_sm2)

SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West

The net radiation daily peak on sunny days occured 1/2 hour after the net radiation peak 
at E2, E9, and the SIRS because the sensor was tipped to the west about 1/2 degree.

• Net radiation(mv_q)

• specific humidity(q)

• specific humidity(q)
• latent heat flux(e)
• corrected sensible heat flux(h)