SGP/EBBR/E20 - Pressure Sensor Data Incorrect

The E20 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.

• pressure at constant pressure surface(pres)

• Atmospheric pressure(mv_pres)

• pressure at constant pressure surface(pres)

SGP/EBBR/E15 - Wind Direction About 130 Degrees Low

The EBBR wind direction sensor developed an approximately -130 degree offset. The pin 
holding the vane to the shaft had fallen out.

• 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/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.

• Atmospheric pressure(mv_pres)

• pressure at constant pressure surface(pres)

• pressure at constant pressure surface(pres)

SGP/EBBR/E15 - Net Radiometer not level

The EBBR net radiometer at E15 was suspected to be off of level
               because the daily peak net radiation was recorded later than it 
               was recorded by the SIRS.

               Site Ops found the EBBR net radiometer at E15 was significantly 
               off of level (1/2 bubble tipped to the north).  Adjustment of 
               the level improved the comparison of peak time with the 
               co-located SIRS.

               There was no significant effect on the sensible and latent heat 
               fluxes.

• specific humidity(q)

• specific humidity(q)

SGP/EBBR/E22 - Wind Speed Sensor Bearings Worn

Wind speed was too low and/or often at or near zero due to
               worn bearings in the wind speed sensor.  Sensor was replaced
               3/17/04.

• 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/E13  - 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)
• scalar wind speed(wind_s)

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

SGP/EBBR/E13  - 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)
• 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 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/E20  - 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.

• 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/E20  - 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.

• 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)
• Resultant wind speed(res_ws)
• standard deviation of wind direction (sigma theta)(sigma_wd)

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)

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 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)

SGP/EBBR/E27  - 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.

• 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/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.

• 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 - Tref Problem Causes All Temps. to be Incorrect

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

• Right air temperature(tair_r)
• Left air temperature(tair_l)

• 0-5 cm integrated soil temperature, site 5(ts5)
• top air temperature(tair_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• 0-5 cm integrated soil temperature, site 2(ts1)
• 0-5 cm integrated soil temperature, site 4(ts4)
• temperature of the top humidity sensor chamber(thum_top)
• bottom air temperature(tair_bot)
• Reference Thermistor Temperature(tref)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm integrated soil temperature, site 3(ts3)

• Reference Thermistor Temperature(tref)
• temperature of the top humidity sensor chamber(thum_top)
• top air temperature(tair_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)

SGP/EBBR/E8  - 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.

• 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)

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

An ice storm froze the wind speed sensor to a stopped condition. The bearings
in the sensor appear to be worn, contributing to the problem.

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/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)(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/E27 - Soil Moisture #5 Insensitive

Soil moisture sensor #5 was insensitive and put out a value of around 30%.

Sensible and latent heat fluxes were not significantly affected by this
small error.

• Soil heat capacity 5(cs5)
• 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 5(ces5)
• soil heat flow at the surface 5(g5)
• Soil moisture 5 (mass water/mass dry soil)(sm5)

SGP/EBBR/E8  - Wind Speed Sensor Frozen Stopped By Icing

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 - AEM Replacement

The AEM at E8 kept hanging in between home positions.

This DQR covers only the period during which the AEM was being
replaced.  

DQRs generally are not issued for AEMs that are not working
as qc flags indicate this clearly.

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

• temperature of the top humidity sensor chamber(thum_top)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• bottom relative humidity(hum_bot)
• top air temperature(tair_top)
• top relative humidity(hum_top)
• top vapor pressure(vp_top)
• temperature of the bottom humidity sensor chamber(thum_bot)

• temperature of the bottom humidity sensor chamber(thum_bot)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• latent heat flux(e)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom relative humidity(hum_bot)
• top air temperature(tair_top)
• Aerodynamic Sensible heat flux(ah)
• temperature of the top humidity sensor chamber(thum_top)
• Best estimate Latent heat flux(ecomb)
• top relative humidity(hum_top)
• bottom air temperature(tair_bot)
• corrected sensible heat flux(h)
• bottom vapor pressure(vp_bot)
• top vapor pressure(vp_top)

• Right air temperature(tair_r)
• Left air temperature(tair_l)

SGP/EBBR/E15 - Wind Speed Incorrect

The cups were broken off of the wind speed sensor by hail on 4/23/04. The cups were 
replaced on 4/27/04.  Wind speed measurements were near zero and incorrect during the indicated 
period.

• 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)

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

SGP/EBBR/E20 - Left Air Temperature Incorrect

The left air temperature, and therefore top and bottom air temperatures
were offscale or incorrect on occasion.  Bowen ratio, sensible heat flux, and latent heat 
flux were also incorrect during those times.

Inspection of the data is required to detect the incorrect periods.

• top air temperature(tair_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• corrected sensible heat flux(h)
• bottom air temperature(tair_bot)

• Left air temperature(tair_l)

• top air temperature(tair_top)
• bottom air temperature(tair_bot)

• Aerodynamic Latent heat flux(ale)
• top air temperature(tair_top)
• Aerodynamic Sensible heat flux(ah)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom air temperature(tair_bot)
• Best estimate Sensible heat flux(hcomb)
• Best estimate Latent heat flux(ecomb)
• corrected sensible heat flux(h)
• latent heat flux(e)

SGP/EBBR/E27  - Right Air Temperature Incorrect

The right air temperature, and therefore top and bottom air temperatures
were offscale or incorrect on occasion.  Bowen ratio, sensible heat flux, and latent heat 
flux were also incorrect during those times.

Inspection of the data is required to detect the incorrect periods.

• bottom air temperature(tair_bot)
• top air temperature(tair_top)

• bottom air temperature(tair_bot)
• corrected sensible heat flux(h)
• latent heat flux(e)
• top air temperature(tair_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)

• Right air temperature(tair_r)

SGP/EBBR/E13 - Automatic Exchange Mechanism Failure

The AEM was stuck in the home_15 position or reported near zero
home signals during much of the indicated period.

The Bowen ratio and latent and sensible heat fluxes were incorrect 
when the AEM was not operating properly; the periods of incorrect
data can be determined from the home signal values.

On 7/14/04 the AEM was replaced.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• temperature of the bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• temperature of the top humidity sensor chamber(thum_top)
• bottom vapor pressure(vp_bot)
• bottom relative humidity(hum_bot)
• top relative humidity(hum_top)
• bottom air temperature(tair_bot)

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

SGP/EBBR/E22 - Net Radiation Incorrect

Rain filled the bottom of the net radiometer with water, resulting
in very high net radiations.  Net radiation is incorrect during this period,
also causing sensible and latent heat fluxes to be incorrect.

• specific humidity(q)

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

SGP/EBBR/E27 - Loose Tair Left Connections

Tair left dropped out at times. When this occurred, the sensible and latent heat fluxes 
are incorrect.

Tightening of the electronic connections to the datalogging equipment
appears to have solved the problem.

• bottom air temperature(tair_bot)
• top air temperature(tair_top)

• bottom air temperature(tair_bot)
• corrected sensible heat flux(h)
• latent heat flux(e)
• top air temperature(tair_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)

• Left air temperature(tair_l)

SGP/EBBR/E20 - Wind Direction Stuck at 100 Degrees

The wind direction sensor was stuck at about 100 degrees.  This did
not affect the primary measurements (net radiation, soil heat flow, sensible heat flux, 
latent heat flux).

• 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/E9 - net radiometer top dome broken, water in bottom dome

The Net radiometer top dome was broken.  Site Ops did not indicate that there
was water in the bottom dome, but the data suggests it.  Net radiation values during the 
period are incorrect.

• specific humidity(q)

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

SGP/EBBR/E22 - Water In Net Radiometer

Water entered the Net Radiometer through a cracked upper dome, causing the
net radiation values to be too large.  As a result, latent and sensible heat flux values 
are also incorrect.

• specific humidity(q)

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

SGP/EBBR/E20 - AEM Failure

The AEM hung inbetween positions; home signals were zero.

The AEM fuse kept blowing, most likely because of worn
rails or sleeves.  This condition may reoccur.

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

• Right air temperature(tair_r)
• Left air temperature(tair_l)

• bottom relative humidity(hum_bot)
• temperature of the top humidity sensor chamber(thum_top)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• bottom air temperature(tair_bot)
• temperature of the bottom humidity sensor chamber(thum_bot)
• top relative humidity(hum_top)
• top vapor pressure(vp_top)

SGP/EBBR/E27 - Data Missing or Incorrect During Battery Terminal Cleaning

The data is missing or incorrect during this period while the battery
terminals were being cleaned.

• Resultant wind speed(res_ws)
• specific humidity(q)
• altitude above sea levelaltunits(alt)
• bottom relative humidity(hum_bot)
• Reference Thermistor Temperature(tref)
• pressure at constant pressure surface(pres)
• top relative humidity(hum_top)
• north latitude for all the input platforms.(lat)
• Time offset of tweaks from base_time(time_offset)
• scalar wind speed(wind_s)
• temperature of the top humidity sensor chamber(thum_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• wind direction (relative to true north)(wind_d)
• Home signal(home)
• top vapor pressure(vp_top)
• bottom air temperature(tair_bot)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• Time offset from base_time(base_time)
• top air temperature(tair_top)
• east longitude for all the input platforms.(lon)
• bottom vapor pressure(vp_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)

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

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

SGP/EBBR/E4 - Net Radiation Incorrect, Sensible and Latent Heat Fluxes Incorrect

The Net Radiometer domes were broken and rain entered, causing net radiation values to be 
too large during the period.

• specific humidity(q)

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

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.

• Atmospheric pressure(mv_pres)

• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• pressure at constant pressure surface(pres)
• corrected sensible heat flux(h)
• latent heat flux(e)

• pressure at constant pressure surface(pres)

SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect

Rain entered the net radiometer through a crack in the upper dome and
settled in the bottom dome.  This caused too large net radiation measurements
during the following daylight hours, until the domes were replaced and dried out the same 
day.

• Net radiation(mv_q)

• specific humidity(q)

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

SGP/EBBR/E8 - Net Radiation Incorrect, Fluxes Incorrect

The net radiometer dome was broken and water entered the botom dome,
causing net radiation measurements, and thus sensible and latent heat 
flux measurements, to be incorrect.

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

• specific humidity(q)

• Net radiation(mv_q)

SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect

The AEM failed.  Sensible and latent heat fluxes were incorrect, as well as gradient 
measurements.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• temperature of the bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• temperature of the top humidity sensor chamber(thum_top)
• bottom vapor pressure(vp_bot)
• bottom relative humidity(hum_bot)
• top relative humidity(hum_top)
• bottom air temperature(tair_bot)

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

SGP/EBBR/E20 - Soil Heat Flow #3 and Soil Temperature #3 Incorrect

• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 0-5 cm integrated soil temperature, site 3(ts3)
• average surface soil heat flow at the surface(ave_shf)
• 5 cm soil heat flow, site 3(shf3)
• latent heat flux(e)
• soil heat flow at the surface 3(g3)
• corrected sensible heat flux(h)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)

• Soil heat flow 3(mv_hft3)
• Soil temperature 3(rr_ts3)

SGP/EBBR/E15 - Soil Moisture Coefficients Incorrect

The soil Moisture coefficients used for E15 were incorrect from the time of
installation of the system in program version 8.  On 9 July 02 parameter 4  (an offset 
value) of program step 136 was changed from 9.5264 to the correct value 0.95264 (this error 
had been made by the vendor). The error masked the real problem (wrong soil type) and 
after 9 July 02 resulted in very low soil moisture measurements.  The coefficients used were 
for coarse sand.  On 28 Sep 04 I visited the E15 site and found the soil type a fine 
sandy clay or fine sandy loam.  I changed the coefficients  at 1509 GMT to those for a very 
fine sandy loam; this produced reasonable soil moistures for the soil type.

The old coefficients in parameters 4 through 9 for step 136 of the program were: 0.95264, 
-6.7859, 36.224, -58.619, 25.073, 4.2278

The new coefficients are: 10.241, -27.943, 49.523, -12.648, -52.643, 38.054

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

SGP/EBBR/E7 - Data Missing

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

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

• Time offset from base_time(base_time)
• north latitude for all the input platforms.(lat)
• specific humidity(q)
• top relative humidity(hum_top)
• east longitude for all the input platforms.(lon)
• bottom vapor pressure(vp_bot)
• Time offset of tweaks from base_time(time_offset)
• pressure at constant pressure surface(pres)
• bottom relative humidity(hum_bot)
• top vapor pressure(vp_top)
• temperature of the top humidity sensor chamber(thum_top)
• Resultant wind speed(res_ws)
• bottom air temperature(tair_bot)
• Home signal(home)
• top air temperature(tair_top)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• scalar wind speed(wind_s)
• altitude above sea levelaltunits(alt)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• temperature of the bottom humidity sensor chamber(thum_bot)
• Reference Thermistor Temperature(tref)

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

SGP/EBBR/E20  - All Soil Measurements Incorrect

All soil measurements were incorrect during the replacement of soil heat flow #3 and soil 
temperature #3.

• 5 cm soil heat flow, site 2(shf2)
• soil heat flow at the surface 1(g1)
• 5 cm soil heat flow, site 3(shf3)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 2(ts1)
• Soil moisture 5 (mass water/mass dry soil)(sm5)
• 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 2(ces2)
• 0-5 cm integrated soil temperature, site 2(ts2)
• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• soil heat flow at the surface 5(g5)
• latent heat flux(e)
• corrected sensible heat flux(h)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow, site 5(shf5)
• average surface soil heat flow at the surface(ave_shf)
• soil heat flow at the surface 4(g4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• Soil heat capacity 1(cs1)
• soil heat flow at the surface 2(g2)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• Soil heat capacity 4(cs4)
• 5 cm soil heat flow, site 4(shf4)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 0-5 cm integrated soil temperature, site 3(ts3)
• Soil moisture 3 (mass water/mass dry soil)(sm3)
• 5 cm soil heat flow, site 1(shf1)
• 0-5 cm integrated soil temperature, site 4(ts4)
• soil heat flow at the surface 3(g3)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• Soil heat capacity 5(cs5)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Soil heat capacity 2(cs2)
• Soil moisture 1 (mass water/mass dry soil)(sm1)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)

• Soil heat flow 4(mv_hft4)
• Soil temperature 2(rr_ts2)
• Soil heat flow 5(mv_hft5)
• Soil moisture 3(r_sm3)
• Soil moisture 4(r_sm4)
• Soil moisture 5(r_sm5)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 2(mv_hft2)
• Soil temperature 3(rr_ts3)
• Soil temperature 5(rr_ts5)
• Soil temperature 4(rr_ts4)
• Soil heat flow 3(mv_hft3)
• Soil temperature 1(rr_ts1)
• Soil moisture 2(r_sm2)
• Soil moisture 1(r_sm1)

SGP/EBBR/E9 - 6 Month Checks

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

• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)
• Left air temperature(tair_l)

• top air temperature(tair_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• temperature of the top humidity sensor chamber(thum_top)
• bottom relative humidity(hum_bot)
• temperature of the bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• top relative humidity(hum_top)

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

SGP/EBBR/E13 - 6 Month Checks

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

• Temperature of left humidity sensor chamber(rr_thum_l)
• Left air temperature(tair_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)

• top air temperature(tair_top)
• temperature of the top humidity sensor chamber(thum_top)
• bottom relative humidity(hum_bot)
• bottom vapor pressure(vp_bot)
• temperature of the bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top relative humidity(hum_top)
• bottom air temperature(tair_bot)

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

SGP/EBBR/E15 - 6 Month Checks

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

• Temperature of left humidity sensor chamber(rr_thum_l)
• Left relative humidity(mv_hum_l)
• Left air temperature(tair_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)
• Right air temperature(tair_r)

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

• bottom vapor pressure(vp_bot)
• temperature of the bottom humidity sensor chamber(thum_bot)
• bottom air temperature(tair_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• bottom relative humidity(hum_bot)
• top relative humidity(hum_top)
• temperature of the top humidity sensor chamber(thum_top)

SGP/EBBR/E20 - 6 Month Checks

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

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

• Left relative humidity(mv_hum_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left air temperature(tair_l)
• Right air temperature(tair_r)
• Right relative humidity(mv_hum_r)

• temperature of the top humidity sensor chamber(thum_top)
• bottom air temperature(tair_bot)
• top relative humidity(hum_top)
• bottom relative humidity(hum_bot)
• bottom vapor pressure(vp_bot)
• top air temperature(tair_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)

SGP/EBBR/E22 - 6 Month Checks

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

• temperature of the bottom humidity sensor chamber(thum_bot)
• top relative humidity(hum_top)
• temperature of the top humidity sensor chamber(thum_top)
• bottom relative humidity(hum_bot)
• top air temperature(tair_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• top vapor pressure(vp_top)

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

• Right relative humidity(mv_hum_r)
• Left air temperature(tair_l)
• Left relative humidity(mv_hum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Temperature of left humidity sensor chamber(rr_thum_l)

SGP/EBBR/E27 - 6 Month Checks

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

• bottom relative humidity(hum_bot)
• temperature of the bottom humidity sensor chamber(thum_bot)
• top air temperature(tair_top)
• top relative humidity(hum_top)
• bottom vapor pressure(vp_bot)
• top vapor pressure(vp_top)
• bottom air temperature(tair_bot)
• temperature of the top humidity sensor chamber(thum_top)

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

• Right air temperature(tair_r)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left air temperature(tair_l)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)
• Temperature of left humidity sensor chamber(rr_thum_l)

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/E4 - 6 Month Checks

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

• bottom vapor pressure(vp_bot)
• bottom relative humidity(hum_bot)
• top vapor pressure(vp_top)
• temperature of the top humidity sensor chamber(thum_top)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• top relative humidity(hum_top)
• temperature of the bottom humidity sensor chamber(thum_bot)

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

• Left air temperature(tair_l)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right relative humidity(mv_hum_r)
• Left relative humidity(mv_hum_l)
• Right air temperature(tair_r)

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.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Right relative humidity(mv_hum_r)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Left air temperature(tair_l)

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

• top relative humidity(hum_top)
• temperature of the top humidity sensor chamber(thum_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)
• bottom relative humidity(hum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)

SGP/EBBR/E8 - 6 Month Checks

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

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

• temperature of the top humidity sensor chamber(thum_top)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• bottom relative humidity(hum_bot)
• top air temperature(tair_top)
• top relative humidity(hum_top)
• top vapor pressure(vp_top)
• temperature of the bottom humidity sensor chamber(thum_bot)

• Temperature of left humidity sensor chamber(rr_thum_l)
• Right air temperature(tair_r)
• Right relative humidity(mv_hum_r)
• Left air temperature(tair_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)

SGP/EBBR/E20 - Soil Heat Flow #4 Incorrect

Soil Heat Flow #4 was missing or offscale and therefore incorrect during the stated 
period.

• 5 cm soil heat flow, site 4(shf4)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• soil heat flow at the surface 4(g4)
• corrected sensible heat flux(h)

• Soil heat flow 4(mv_hft4)

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/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/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/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/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/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/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/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/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/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/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/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/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)
• east longitude for all the input platforms.(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)
• north latitude for all the input platforms.(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 of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• bottom relative humidity(hum_bot)
• specific humidity(q)
• north latitude for all the input platforms.(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)
• east longitude for all the input platforms.(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)
• north latitude for all the input platforms.(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)
• east longitude for all the input platforms.(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)

SGP/EBBR/E9 - Soil moisture too high

The 15 and 30 minute data for sm3 indicated that there was a problem with the sensor that 
kept the soil moisture artificially high.  This corrected itself on 6/11, but it is not 
clear why. 

A new sensor was installed on 6/17 and it has behaved well since then.

• Soil moisture 3(r_sm3)

• Soil moisture 3 (mass water/mass dry soil)(sm3)

SGP/EBBR/E4 - Water in Net Radiometer

The net radiometer had water in the bottom dome.  All net radiation, sensible heat flux, 
and
latent heat flux data during this period is incorrect.

• specific humidity(q)

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

• Net radiation(mv_q)

SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure)

The AEM was stuck in the home 30 position most of this period.

Therefore, the sensible and latent heat fluxes are incorrect during most of this period.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

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

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

SGP/EBBR/E4 - All Measurements Incorrect Due to Low Battery Voltage

All measurements were incorrect as battery voltage fell below the level that is required 
to ensure correct data values.

• standard deviation of wind direction (sigma theta)(sigma_wd)
• bottom air temperature(tair_bot)
• Resultant wind speed(res_ws)
• scalar wind speed(wind_s)
• temperature of the top humidity sensor chamber(thum_top)
• pressure at constant pressure surface(pres)
• top relative humidity(hum_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• Reference Thermistor Temperature(tref)
• bottom relative humidity(hum_bot)
• specific humidity(q)
• bottom vapor pressure(vp_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• wind direction (relative to true north)(wind_d)
• Home signal(home)

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

• Home signal(mv_home)
• Soil heat flow 3(mv_hft3)
• Wind direction (relative to true north)(mv_wind_d)
• Right air temperature(tair_r)
• Left air temperature(tair_l)
• Soil heat flow 2(mv_hft2)
• scalar wind speed(wind_s)
• Right relative humidity(mv_hum_r)
• Soil temperature 5(rr_ts5)
• Net radiation(mv_q)
• Soil temperature 2(rr_ts2)
• Reference temperature(rr_tref)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil temperature 3(rr_ts3)
• Soil temperature 1(rr_ts1)
• Soil moisture 4(r_sm4)
• Soil moisture 1(r_sm1)
• Soil temperature 4(rr_ts4)
• Soil moisture 3(r_sm3)
• Soil moisture 2(r_sm2)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 5(mv_hft5)
• Left relative humidity(mv_hum_l)
• Atmospheric pressure(mv_pres)
• Soil moisture 5(r_sm5)
• Soil heat flow 4(mv_hft4)

SGP/EBBR/E15 - Net Radiation Too Large - Water in Bottom

Water in the bottom dome of the net radiometer made the measurements incorrectly large.  
Sensible and latent heat fluxes were therefore 
incorrect.

• Net radiation(mv_q)

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

• specific humidity(q)

SGP/EBBR/E13 - Improved EBBR CR10 Program

Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of 
the primary measurements as follows:

1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow.  
This is applied to the individual soil sets.  Measurements outside the limits are 
rejected and the measurements within the limits are used to calculate the average soil heat flow.

2) Max and min limits are used to determine incorrect values of net radiation, sensible 
heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal.  If AEM 
signal is outside the limits, h and e are set to 999s.  If net radiation is outside the 
limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s.

Virtually no incorrect soil measurement will affect the primary measurements of h and e.

By setting h and e to 999s, it can be easily seen that the primary variables are 
incorrect; no other interpretation is possible.

Prior to 20050331, the improved CR10 program was NOT in effect.  DQRs have been submitted 
for known instances of incorrect soil measurements which affected the quality of the 
primary measurements of h and e.

Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream.  The 
earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. 
sgp30ebbrE13.a1).

• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E15 - Improved EBBR CR10 Program

Effective 20050329.1900, the EBBR.E15 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050329, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE15.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE15.a1).

• latent heat flux(e)
• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)

SGP/EBBR/E20 - Improved EBBR CR10 Program

Effective 20050330.1900, the EBBR.E20 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050330, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE20.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE20.a1).

• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E22 - Improved EBBR CR10 Program

Effective 20050330.1930, the EBBR.E20 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050330, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE20.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE20.a1).

• corrected sensible heat flux(h)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)

SGP/EBBR/E27 - Improved EBBR CR10 Program

Effective 20050330.1730, the EBBR.E27 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050330, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE27.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE27.a1).

• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)
• latent heat flux(e)

SGP/EBBR/E4 - Improved EBBR CR10 Program

Effective 20050323.1800, the EBBR.E4 CR10 program was revised to improve the quality of 
the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h and e are set to 
999s.  If net radiation is outside the limits, h and e are set to 999s. If h or e are 
outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary variables are 
incorrect; no other interpretation is possible.
   
Prior to 20050323, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE4.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE4.a1).

• corrected sensible heat flux(h)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)

SGP/EBBR/E7 - Improved EBBR CR10 Program

Effective 20050322.1900, the EBBR.E7 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050322, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE7.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE7.a1).

• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)
• latent heat flux(e)

SGP/EBBR/E8 - Improved EBBR CR10 Program

Effective 20050322.1730, the EBBR.E8 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050322, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE8.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE8.a1).

• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E9 - Improved EBBR CR10 Program

Effective 20050322.1600, the EBBR.E9 CR10 program was revised to improve 
the quality of the primary measurements as follows:
   
1) An RMS procedure is used to determine max and min limits of acceptable
soil heat flow.  This is applied to the individual soil sets.  Measurements
outside the limits are rejected and the measurements within the limits are
used to calculate the average soil heat flow.
   
2) Max and min limits are used to determine incorrect values of net
radiation, sensible heat flux (h), latent heat flux (e), and automatic
exchange mechanism (AEM) signal.  If AEM signal is outside the limits, h 
and e are set to 999s.  If net radiation is outside the limits, h and e are 
set to 999s. If h or e are outside the limits, h and e are set to 999s.
   
Virtually no incorrect soil measurement will affect the primary 
measurements of h and e.
   
By setting h and e to 999s, it can be easily seen that the primary 
variables are incorrect; no other interpretation is possible.
   
Prior to 20050322, the improved CR10 program was NOT in effect.  DQRs have
been submitted for known instances of incorrect soil measurements which
affected the quality of the primary measurements of h and e.
   
Note: the DQR begin date is the begin date of the sgp30ebbrE9.b1 data
stream.  The earlier version of the CR10 program was also used on previous
EBBR datastream names (e.g. sgp30ebbrE9.a1).

• latent heat flux(e)
• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)

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

The ts4 sensor reported 99999 values because the sensor leads were loose.  Soil moisture 
#4 reported low values (steady 16%) during this time period.

The sensible and latent heat fluxes were not affected by this problem, only
soil temperature and soil moisture #4.  See soil temperatures and soil moistures from sets 
#2, #3, and #5 for correct values (note: soil temperature #1 was having problems during 
the same time).

• Soil moisture 4 (mass water/mass dry soil)(sm4)
• 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)

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

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.

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

• Time offset from base_time(base_time)
• north latitude for all the input platforms.(lat)
• specific humidity(q)
• top relative humidity(hum_top)
• east longitude for all the input platforms.(lon)
• bottom vapor pressure(vp_bot)
• Time offset of tweaks from base_time(time_offset)
• pressure at constant pressure surface(pres)
• bottom relative humidity(hum_bot)
• top vapor pressure(vp_top)
• temperature of the top humidity sensor chamber(thum_top)
• Resultant wind speed(res_ws)
• bottom air temperature(tair_bot)
• Home signal(home)
• top air temperature(tair_top)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• scalar wind speed(wind_s)
• altitude above sea levelaltunits(alt)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• temperature of the bottom humidity sensor chamber(thum_bot)
• Reference Thermistor Temperature(tref)

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