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/E19 - Net Radiation Incorrect - Cable Chewed by Rodents

The net radiation measurement was incorrect after the net radiometer cable was chewed by 
rodents.  Sensible and latent heat fluxes were therefore incorrect.

• specific humidity(q)

• Net radiation(mv_q)

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