SGP EBBR E13 - E13 EBBR Data Incorrect During 6 Month Checks

The data was incorrect during the 6 month checks.

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

• Soil temperature 1(rr_ts1)
• Soil heat flow 3(mv_hft3)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil moisture 3(rr_sm3)
• Soil temperature 2(rr_ts2)
• Soil temperature 3(rr_ts3)
• Soil moisture 3(r_sm3)
• Soil moisture 2(r_sm2)
• Soil temperature 4(rr_ts4)
• Soil moisture 4(rr_sm4)
• Soil heat flow 2(mv_hft2)
• Soil moisture 5(rr_sm5)
• Right air temperature(tair_r)
• Soil moisture 2(rr_sm2)
• Atmospheric pressure(mv_pres)
• Soil heat flow 5(mv_hft5)
• Soil moisture 1(rr_sm1)
• Soil temperature 5(rr_ts5)
• Left relative humidity(mv_hum_l)
• Reference temperature(rr_tref)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 1(r_sm1)
• scalar wind speed(wind_s)
• Soil heat flow 1(mv_hft1)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Soil heat flow 4(mv_hft4)
• Left air temperature(tair_l)
• Soil moisture 5(r_sm5)
• Right relative humidity(mv_hum_r)
• Net radiation(mv_q)
• Soil moisture 4(r_sm4)

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

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

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

SGP/SMOS/E13 - E13 SMOS SNOW DEPTH DATA INCORRECT

Data incorrect due to new program reading sensor input when no sensor installed.  Values 
read near 1539 mm.

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Time of Maximum Snow Depth(time_max_snow)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

SGP EBBR E13 - E13 EBBR Left Air Temperature Incorrect

This condition occurred most of the time during the 
indicated period (hence color yellow).

The left air temperature was incorrect only when the AEM
was in the home 30 position.  This only affected the bottom
air temperature calculation.  However, it made the latent
heat flux, sensible heat flux, and Bowen ratio incorrect.

The sensor was improperly inserted into the aspirator shield
and was pinched between the shield and the T/RH probe. When
the AEM was in the home30 position, the aspirator hose
position may have caused the sensor to short to ground.

• Left air temperature(tair_l)

• Left air temperature(tair_l)

• bottom air temperature(tair_bot)

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

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

SGP/EBBR/E13 - Reprocess: E13 EBBR Soil Temperature #4 Incorrect

Soil Temperature #4 was often incorrect, typically too large negative,
during this period, causing other measurements calculated with
it to be incorrect also. This was caused by a bad multiplexor channel,
which was discovered by the vendor during recalibration of the unit
later.

• Soil temperature 4(rr_ts4)

• Soil temperature 4(rr_ts4)

• 0-5 cm integrated soil temperature, site 4(ts4)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)
• soil heat flow at the surface 4(g4)
• 0-5 cm change in soil heat storage with time, site 4(ces4)

• latent heat flux(e)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 4(ts4)
• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)
• soil heat flow at the surface 4(g4)

SGP/THWAPS/C1 - THWAPS C1 miscalibrated

Power outages apparently led to the THWAPS HMP233 temperature and RH sensor
being replaced at C1.  The power went out at 0340 on 3/9 was restored at
0635 and went out again at 2025.

The new HMP233 appears to be incorrectly calibrated and all temperature
data since its installation are wrong.  If I am correct about the nature
of the calibration problem, the true average temperature can be recovered
from that recorded by a linear conversion, but I don't think its worth the
trouble.

• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Relative Humidity(sd_rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)
• Relative humidity scaled, by total column amount from MWR(rh)

• Environmental Temperature (hybrid-b grid)(temp)
• Relative humidity scaled, by total column amount from MWR(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Relative Humidity(sd_rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E13 - E13 SMOS SNOW DATA INCORRECT

Due to a programming error all snow depth data were reported as 0.  In effect, no snow 
depth data were collected.

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Time of Maximum Snow Depth(time_max_snow)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

SGP/EBBR/E13 - 6 Month Checks

The indicated measurements were incorrect during the 6 month checks.

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

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

• bottom relative humidity(hum_bot)
• scalar wind speed(wind_s)
• temperature of the bottom humidity sensor chamber(thum_bot)
• temperature of the top humidity sensor chamber(thum_top)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• wind direction (relative to true north)(wind_d)
• bottom air temperature(tair_bot)
• bottom vapor pressure(vp_bot)
• top relative humidity(hum_top)

• 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 air temperature(tair_top)
• top relative humidity(hum_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)

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

SGP/EBBR/E13 - Reprocess: Soil Heat Flow #2 Incorrect

Soil Heat Flow #2 was incorrect during the indicated period.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:
   ave_shf = (g1 + g3 + g4 + g5)/4
   e = -(q + ave_shf)/(1 + bowen)
   h = -(q + e + ave_shf)

• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• 5 cm soil heat flow, site 2(shf2)
• soil heat flow at the surface 2(g2)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

• 5 cm soil heat flow, site 2(shf2)
• latent heat flux(e)
• average surface soil heat flow at the surface(ave_shf)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• soil heat flow at the surface 2(g2)
• corrected sensible heat flux(h)

SGP/EBBR/E13 - Wind Direction Incorrect

The wind direction and sigma_wd was near zero for the indicated times.

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

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• 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/E13 - AEM Hung up

The automatic exchange mechanism hung numerous times, but with various different 
measurements of home signals.  In all cases, temperature and humidity gradients were incorrect; 
thus the Bowen ratio, sensible heat flux, and latent heat flux are incorrect for the 
indicated periods.  Even when the home 15 and 30 signals were different (but too high) the 
measurements were incorrect because the program keys off of the home signals, which must be 
in the proper ranges.

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

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

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

• 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 air temperature(tair_top)
• top relative humidity(hum_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)

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

SGP/SMOS/E13 - SNOW DEPTH DATA INCORRECT

Data was reported as outside of manufacturer's tolerance.

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Time of Maximum Snow Depth(time_max_snow)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

SGP/SMOS/E13 - SNOW DEPTH DATA INCORRECT

Snow depth sensor was removed for the season.  Temperatures fell to below 10 deg C causing 
ingest program to accumulate erroneous readings.

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Time of Maximum Snow Depth(time_max_snow)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

SGP/SMOS/E13 - Snow depth sensor removed; data reported as missin

The snow depth sensor was removed from service.  The program was changed so that -9999 is 
entered into the datastream.

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Time of Maximum Snow Depth(time_max_snow)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

SGP/TWR/C1 - SE-side 60m RH and VP Biased High

The 60m SE-side RH was biased high when RH was > 65%.  At saturation the 60m RH was 
sometimes higher than the West-side measurement by 7%.

• Relative humidity at 60 m(rh_60m)
• Vapor pressure at 60 m(vap_pres_60m)

• Standard Deviation of 60 m Vapor Pressure(sd_vap_pres_60m)
• Vapor pressure at 60 m(vap_pres_60m)
• Relative humidity at 60 m(rh_60m)
• Standard Deviation of 60 m Relative Humidity(sd_rh_60m)

• Vapor pressure at 60 m(vap_pres_60m)
• Standard Deviation of 60 m Vapor Pressure(sd_vap_pres_60m)
• Relative humidity at 60 m(rh_60m)
• Standard Deviation of 60 m Relative Humidity(sd_rh_60m)

• Vapor pressure at 60 m(vap_pres_60m)
• Relative humidity at 60 m(rh_60m)

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

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

This does not affect the data quality.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

This does not affect the data quality.

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

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

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

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

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

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

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

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

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

SGP/EBBR/E13 - Wind Speed Stalling at Low Speeds

Perhaps because of excessive bearing wear, the wind speed sensor
had a high starting threshhold with wind speeds below about 2 m/s.
Wind speed measurements at all speeds were probably too low.

• scalar wind speed(wind_s)

• 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/E13 - AEM Jung between Home Positions

When the AEM (Automatic Exchange Mechanism) is hung 
inbetween home positions, the gradients of temperature and 
relative humidity, and thus sensible and latent heat fluxes, 
are incorrect.

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

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

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

• 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 air temperature(tair_top)
• top relative humidity(hum_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)

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

SGP/SMOS/E13 - Erroneous Tips in Precip Data

Erroneous tips were being generated from an unknown source.  Reed switch was finally 
replaced and the problem did not reappear.

• precipitation accumulated between outputs, 3-hr accumulation(precip)

• precipitation accumulated between outputs, 3-hr accumulation(precip)

• precipitation accumulated between outputs, 3-hr accumulation(precip)

• precipitation accumulated between outputs, 3-hr accumulation(precip)

SGP/IRT25m/C1 - Reprocess: up_short_hemisp needs -1 multiplier

The upwelling hemispheric shortwave measurement
   in the SGP.C1 IRT25m data streams for the time
   period noted requires a (-1) multiplier to correct
   for swapped connections at installation.

• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Instantaneous Upwelling Shortwave Irradiance, Inverted Pyranometer Thermopile
  Voltage(inst_up_short_hemisp)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(up_short_hemisp_max)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(up_short_hemisp_min)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)

• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(up_short_hemisp_min)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Instantaneous Upwelling Shortwave Irradiance, Inverted Pyranometer Thermopile
  Voltage(inst_up_short_hemisp)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(up_short_hemisp_max)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer Voltage(inst_up_short_hemisp_tp)

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)

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

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

• 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 air temperature(tair_top)
• top relative humidity(hum_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)

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

SGP/IRT25m/C1 - error in data logger program

On 12/16/2002, the logger software for the IRT25m was
inappropriately edited. This resulted in incorrect instantaneous
values at 20 and 40 seconds after each minute and incorrect 
calculation of 60-second averaged instantaneous values (because
the 20 and 40 second values are two of three instantaneous
values used to calculate this average). On 5/21/2003, the data
logger program was corrected.

• Instantaneous Surface Infra-red Temperature(inst_sfc_ir_temp)
• Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(inst_up_long_hemisp)
• Instantaneous Dome Temperature(inst_dome_temp)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature, Pyrgeometer(inst_up_long_dome_temp)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature, Pyrgeometer(inst_up_long_case_temp)
• Instantaneous Upwelling Shortwave Irradiance, Inverted Pyranometer Thermopile
  Voltage(inst_up_short_hemisp)
• Instantaneous Case Temperature(inst_case_temp)

• Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• Instantaneous Surface Infra-red Temperature(inst_sfc_ir_temp)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer Voltage(inst_up_short_hemisp_tp)

SGP/SMOS/E13 - Sensor failure

Beginning around 1415 UTC on 08/30, the RH readings for
this instrument were frequently around 0 (sometimes
there are erratic spikes upward from 0 for periods of
time). Rainfall appears to have been the cause of the
erroneous readings, as the instrument appeared to fail
in and around the time of heavy rains.

A maintenance visit occurred on 09/04, afterwards data
returned to normal values.

• Standard deviation of Relative Humidity(sd_rh)
• Relative humidity scaled, by total column amount from MWR(rh)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Standard deviation of Relative Humidity(sd_rh)
• Relative humidity scaled, by total column amount from MWR(rh)

• Maximum Relative Humidity(max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Relative Humidity(min_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)

• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/EBBR/E13  - Water In Net Radiometer; Surface Fluxes are Incorrect

The net radiometer top dome was punctured by migrating birds.  This alone does not cause 
incorrect net radiation measurements.  However, when it subsequently rains, water collects 
in the bottom dome, causing the net radiation measurements to be too large during the 
day and too small at night.

• Net radiation(mv_q)

• Net radiation(mv_q)

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

• specific humidity(q)

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

SGP/EBBR/E13  - Water in Net Radiometer, Surface Fluxes Incorrect

The net radiometer top dome was punctured by migrating birds.  This alone does not cause 
incorrect net radiation measurements.  However, when it subsequently rains, water collects 
in the bottom dome, causing the net radiation measurements to be too large during the 
day and too small at night.

• Net radiation(mv_q)

• Net radiation(mv_q)

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

• specific humidity(q)

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

SGP/TWR/C1 - Southeast Side RH Too Large

The T/RH probes installed on the 25 m and 60 m levels of the southeast side of the tower 
on 8/15/03 gave RH readings that were too large for RH above 65%. The difference between 
the west and southeast side RH was within the combined accuracies of the sensors up to 
about 80% RH.  Above 80% RH the southeast side RH was much larger, with the difference 
increasing to 10% larger (or more) at 100% RH.  The vapor pressure from the southeast side 
(calculated with RH) was also too large.

The probes were replaced on 2/10/04 and the two sides of the tower now agree
fairly well, with RH not exceeding 100% during saturation.

• Relative humidity at 60 m(rh_60m)
• Vapor pressure at 25 m(vap_pres_25m)
• Relative humidity at 25 m(rh_25m)
• Vapor pressure at 60 m(vap_pres_60m)

• Vapor pressure at 25 m(vap_pres_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• Relative humidity at 60 m(rh_60m)
• Relative humidity at 25 m(rh_25m)

SGP/SMOS/E13 - 6-month Calibration Checks

During the time periods specified, the SMOS.E13 tower was lowered for 6-month Calibration 
Checks.  During these times wind data are incorrect and temperature and humidity data may 
be incorrect.

Note, exact times when tower was down or maintenance was being performed is sometimes 
unknown.  Users should use the remaining data from these days with caution.

Calibration results are available from the OMIS database at 
    
http://www.ops.sgp.arm.gov:591/smos6cal/default.htm 
To view all 6-month calibration reports leave the date time entry blank.

• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Temperature(min_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Temperature(max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

• Wind Speed (vector averaged)(wspd_va)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• surface wind speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Relative Humidity(sd_rh)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Environmental Temperature (hybrid-b grid)(temp)

• barometric pressure(bar_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• surface wind speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)

SGP/SMOS/E13 - 6-month Calibration Checks

During the time periods specified, the SMOS.E13 tower was
lowered for 6-month Calibration Checks.  During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.

Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Standard deviation of Relative Humidity(sd_rh)
• Relative humidity scaled, by total column amount from MWR(rh)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)
• surface wind speed(wspd)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Relative humidity scaled, by total column amount from MWR(rh)
• surface wind speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Environmental Temperature (hybrid-b grid)(temp)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• surface wind speed(wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Standard deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Environmental Temperature (hybrid-b grid)(temp)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Temperature(min_temp)
• Minimum Relative Humidity(min_rh)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Time of Maximum Temperature(time_max_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)

• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• surface wind speed(wspd)
• barometric pressure(bar_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)

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/TWR/C1 - 25m SW Incorrect

Wires were touching the fan inside the aspirator of the 25m SW level.  This occurred 
during maintenance to instruments on the SW side on 8/05/04; vibration of the carriage 
probably jostled the wires loose.

The temperature and relative humidity sensors were not adequately ventilated and therefore 
produced incorrect measurements of temperature, relative humidity, and vapor pressure.

• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)
• Relative humidity scaled, by total column amount from MWR(rh)

• Standard deviation of Relative Humidity(sd_rh)
• Relative humidity scaled, by total column amount from MWR(rh)
• Environmental Temperature (hybrid-b grid)(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Vapor Pressure(sd_vap_pres)

SGP/TWR/C1 - Tower SE-side lowered for maintenance

The southeast side tower carriage was lowered for maintenance and/or data are off-scale 
during maintenance.

• Relative humidity at 60 m(rh_60m)
• Relative humidity at 25 m(rh_25m)
• Vapor pressure at 25 m(vap_pres_25m)
• 25 m Air Temperature(temp_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• 60 m Air Temperature(temp_60m)

• Vapor pressure at 25 m(vap_pres_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• Standard Deviation of 25 m Temperature(sd_temp_25m)
• 60 m Air Temperature(temp_60m)
• Standard Deviation of 60 m Vapor Pressure(sd_vap_pres_60m)
• Standard Deviation of 25 m Relative Humidity(sd_rh_25m)
• Relative humidity at 25 m(rh_25m)
• Relative humidity at 60 m(rh_60m)
• Standard Deviation of 60 m Relative Humidity(sd_rh_60m)
• Standard Deviation of 60 m Temperature(sd_temp_60m)
• Standard Deviation of 25 m Vapor Pressure(sd_vap_pres_25m)
• 25 m Air Temperature(temp_25m)

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/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/E13/E15/E20/E22/E26/E4/E7/E8/E9  - BA EBBR VAP Bulk Aerodynamics

Fixed AEM and wind speed sensor heights were improperly used in the calculation of bulk 
aerodynamic sensible and latent heat fluxes instead of site specific heights.

This resulted in either under-estimation or over-estimation of the sensible and latent 
heat fluxes.

• Aerodynamic Sensible heat flux(ah)
• Friction velocity(austar)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• Best estimate Latent heat flux(ecomb)

• Aerodynamic Latent heat flux(ale)
• Friction velocity(austar)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Latent heat flux(ecomb)

• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)
• average surface soil heat flow at the surface(ave_shf)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Latent heat flux(ale)

• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)

• Best estimate Sensible heat flux(hcomb)
• Friction velocity(austar)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Latent heat flux(ecomb)
• Aerodynamic Latent heat flux(ale)

• Best estimate Latent heat flux(ecomb)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Sensible heat flux(hcomb)
• Friction velocity(austar)
• Aerodynamic Latent heat flux(ale)

• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Sensible heat flux(ah)
• Aerodynamic Latent heat flux(ale)

• Aerodynamic Sensible heat flux(ah)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)

• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)
• Aerodynamic Sensible heat flux(ah)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)

SGP/SMOS/E13 - T/RH sensor failure

The T/RH sensor began to fail at high RH% values.  Since this site has an aspirated 
radiation shield, values in excess of the 104% manufacturer limit are not expected to occur due 
to rain or condensation.

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)

• Standard deviation of Relative Humidity(sd_rh)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity scaled, by total column amount from MWR(rh)

• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SWATS/E13 - Reprocess: Changed Depth Dimension

The dimension "depth" in the netCDF files was incorrectly reported as 8, and has been 
changed. Newer files with the correct smaller depth dimension do not have extra placeholder 
values and thus are smaller in size.

• Sensor Depth below surface(depth)

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/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/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/THWAPS/C1 - Minor bias in saturation vapor pressure

The saturation vapor correction when temps are below 0C contained an error
in the multiplier.  The incorrect multiplier only equates to an error of
0.01 kPa which is less than the stated uncertainty of the measurement (+/-
0.035 kPa).

• Vapor Pressure (kiloPascals)(vap_pres)

SGP/EBBR/E13 - Loose connections

The tair_bot spiked around midday, as if it is temperature related, and may have indicated 
a loose connection.

The sensible and latyent heat fluxes and Bowen ratio were incorrect when this condition 
occurred.

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

• bottom air temperature(tair_bot)

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

SGP/EBBR/E13 - All EBBR Data Missing

All E13 EBBR data was missing during these three periods.

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

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

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

SGP/EBBR/E13 - metadata corrections

On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E13 data collected by ARM back to the installation of the 
instrument in September 1992.  Please see the current metadata for correct information.  
These changes do not affect data values or quality.

The changes are summarized below:
1) Update of "sensor location" information
2) Addition of installation dates for systems
3) Correction of soil type
4) Correction of soil moisture units (from "by volume" to "gravimetric")

• Time offset from base_time(base_time)

• Time offset from base_time(base_time)

• Time offset from base_time(base_time)

SGP/EBBR/E13 - Net Radiation and Fluxes Suspect

The net radiometer had water in it, making the net radiation and flux measurements 
suspect; the latter do not appear to be incorrect, but should be considered as suspect anyway.

• Net radiation(mv_q)

• specific humidity(q)

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

SGP/SMOS/E13 -Reprocess:  Wind Speed Values Excessively High

The slope value to convert the rotation of the propeller from engineering units to 
meters/second was incorrectly given as .098 when it should have been .0049.  Conversion was 
converting hertz to meters/second when it should have been converting rpm's to meters/second.

• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)

• surface wind speed(wspd)

SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected

The left air temperature was incorrect, thus the Bowen ratio and sensible and latent heat 
fluxes were incorrect also.

• Left air temperature(tair_l)

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

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

SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems

The AEM did not function properly, thus sensible and latent heat fluxes were incorrect.

• 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/E13 - Missing Data

Data was missing for this period.

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

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

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

SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale

There were several half hours during this period when the pressure went offscale or at 
least to a high value, causing the sensible and latent heat fluxes to be incorrect.

• Atmospheric pressure(mv_pres)

• pressure at constant pressure surface(pres)

• pressure at constant pressure surface(pres)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative

During this period Soil Heat Flow #3 was sometimes incorrect (large negative); during 
those times, sensible and latent heat fluxes and average soil heat flux were sometimes (but 
not always incorrect).

• Soil heat flow 3(mv_hft3)

• soil heat flow at the surface 3(g3)
• 5 cm soil heat flow, site 3(shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect

During spikes in pressure upwards or downwards the sensible and latent heat fluxes were 
incorrect.

• Atmospheric pressure(mv_pres)

• pressure at constant pressure surface(pres)

• pressure at constant pressure surface(pres)
• latent heat flux(e)
• corrected sensible heat flux(h)

SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low

Most measurements were incorrect during this period because the battery voltage was below 
10.5 volts.

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

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

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

SGP/TWR/C1 - Tower SE-side lowered for maintenance

The SE-side carriage was lowered for maintenance and/or data values are off-scale during 
maintenance.

• Vapor pressure at 25 m(vap_pres_25m)
• 25 m Air Temperature(temp_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• 60 m Air Temperature(temp_60m)
• Relative humidity at 60 m(rh_60m)
• Relative humidity at 25 m(rh_25m)

• Standard Deviation of 25 m Temperature(sd_temp_25m)
• Standard Deviation of 25 m Vapor Pressure(sd_vap_pres_25m)
• 25 m Air Temperature(temp_25m)
• Relative humidity at 25 m(rh_25m)
• Standard Deviation of 25 m Relative Humidity(sd_rh_25m)
• Relative humidity at 60 m(rh_60m)
• Standard Deviation of 60 m Temperature(sd_temp_60m)
• Standard Deviation of 60 m Vapor Pressure(sd_vap_pres_60m)
• Vapor pressure at 60 m(vap_pres_60m)
• Vapor pressure at 25 m(vap_pres_25m)
• 60 m Air Temperature(temp_60m)
• Standard Deviation of 60 m Relative Humidity(sd_rh_60m)

• 25 m Air Temperature(temp_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• 60 m Air Temperature(temp_60m)
• Relative humidity at 60 m(rh_60m)
• Vapor pressure at 25 m(vap_pres_25m)
• Relative humidity at 25 m(rh_25m)

• Vapor pressure at 25 m(vap_pres_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• 60 m Air Temperature(temp_60m)
• Standard Deviation of 60 m Vapor Pressure(sd_vap_pres_60m)
• Standard Deviation of 60 m Relative Humidity(sd_rh_60m)
• Standard Deviation of 25 m Vapor Pressure(sd_vap_pres_25m)
• 25 m Air Temperature(temp_25m)
• Standard Deviation of 25 m Temperature(sd_temp_25m)
• Standard Deviation of 25 m Relative Humidity(sd_rh_25m)
• Relative humidity at 60 m(rh_60m)
• Relative humidity at 25 m(rh_25m)
• Standard Deviation of 60 m Temperature(sd_temp_60m)

SGP/TWR/C1 - Tower lowered for maintenance

The west side tower elevators were lowered for maintenance and/or data are offscale during 
routine maintenance.

• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)

• Environmental Temperature (hybrid-b grid)(temp)
• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity scaled, by total column amount from MWR(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Standard deviation of Relative Humidity(sd_rh)
• Environmental Temperature (hybrid-b grid)(temp)
• Vapor Pressure (kiloPascals)(vap_pres)

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Maximum Temperature(max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Temperature(min_temp)
• Time of Maximum Temperature(time_max_temp)

• Maximum Vapor Pressure(max_vap_pres)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Temperature(time_min_temp)
• Maximum Temperature(max_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Temperature(min_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Relative humidity scaled, by total column amount from MWR(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard deviation of Relative Humidity(sd_rh)
• Environmental Temperature (hybrid-b grid)(temp)
• Standard deviation of Vapor Pressure(sd_vap_pres)