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

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

SGP/EBBR/E13 - Missing Data

Data was missing for this period.

• Soil moisture 2(r_sm2)
• lon(lon)
• 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)
• lat(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)
• Dummy altitude for Zeb(alt)
• Soil temperature 1(rr_ts1)
• Right air temperature(tair_r)
• Battery(bat)

• base time(base_time)
• Home signal(home)
• top air temperature(tair_top)
• Reference Thermistor Temperature(tref)
• Dummy altitude for Zeb(alt)
• lon(lon)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• time(time)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• net radiation(q)
• Temperature of the top humidity chamber(thum_top)
• vector 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)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top 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(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• base time(base_time)
• 0-5 cm integrated soil temperature, site 2(ts1)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• top air temperature(tair_top)
• Top 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)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 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 chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• lat(lat)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 5(shf5)
• lon(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, site 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)
• Dummy altitude for Zeb(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)

• Retrieved pressure profile(pres)

• Retrieved pressure profile(pres)
• latent heat flux(e)
• h(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, site 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(ave_shf)
• latent heat flux(e)
• h(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)

• Retrieved pressure profile(pres)

• Retrieved pressure profile(pres)
• latent heat flux(e)
• h(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 humidity(hum_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• net radiation(q)
• vector wind speed(res_ws)
• Temperature of the top humidity 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)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top 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(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• soil heat flow, site 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)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• Top 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)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 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 chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of 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, site 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)