SGP/EBBR/E4 - Battery change

On 29 November 1995, the Gel Cell battery for the E4 EBBR at Plevna, KS
was replaced with a lead acid battery.  Gel Cells do not charge or keep
a charge in cold weather as well as lead acid batteries.  Some data loss
and incorrect data resulted.  Of the period listed above, the data that is
missing and incorrect is listed below.  Some data for the incorrect periods
is incorrect (sensible and latent heat fluxes), while other data values may be
correct (for example: wind speed and direction, soil moisture, etc.)  It
may be wise to not use any of the 2030 GMT 5, 15, and 30 minute data.

5 minute:  missing   1745-2010 GMT
           incorrect 2015-2030 GMT

15 minute: missing   1745-2000 GMT
           incorrect 2015-2030 GMT

30 minute: missing   1800-2000 GMT
           incorrect      2030 GMT

• Wind speed arithmetic mean(wspd_arith_mean)
• Top air temperature(temp_air_top)
• Bottom air temperature(temp_air_bottom)
• Top relative humidity (fractional)(rh_top_fraction)
• Soil moisture 2, gravimetric(soil_moisture_2)
• Soil moisture 1, gravimetric(soil_moisture_1)
• Wind direction vector mean(wdir_vec_mean)
• lon(lon)
• Atmospheric pressure(atmos_pressure)
• Bottom T/RH sensor temperature(temp_trh_bottom)
• Wind speed vector mean(wspd_vec_mean)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Top T/RH sensor temperature(temp_trh_top)
• Surface soil heat flux, average of fluxes 1-5(surface_soil_heat_flux_avg)
• Change in energy storage 3, 0-5 cm soil layer(energy_storage_change_3)
• Soil heat capacity 4(soil_heat_capacity_4)
• Change in energy storage 2, 0-5 cm soil layer(energy_storage_change_2)
• Soil heat capacity 5(soil_heat_capacity_5)
• Change in energy storage 1, 0-5 cm soil layer(energy_storage_change_1)
• Soil heat capacity 2(soil_heat_capacity_2)
• Soil heat capacity 3(soil_heat_capacity_3)
• Change in energy storage 5, 0-5 cm soil layer(energy_storage_change_5)
• Change in energy storage 4, 0-5 cm soil layer(energy_storage_change_4)
• AEM position indicator 0 to 15 mins(home_signal_15)
• North Latitude(lat)
• Top vapor pressure(vapor_pressure_top)
• -180.0 - +180.0(alt)
• Bottom vapor pressure(vapor_pressure_bottom)
• Soil moisture 4, gravimetric(soil_moisture_4)
• Soil moisture 3, gravimetric(soil_moisture_3)
• Soil moisture 5, gravimetric(soil_moisture_5)
• Bowen ratio(bowen_ratio)
• Net radiation(net_radiation)
• Soil heat capacity 1(soil_heat_capacity_1)
• base time in epoch(base_time)
• Soil heat flow 3, corrected for soil moisture(corr_soil_heat_flow_3)
• Soil heat flow 4, corrected for soil moisture(corr_soil_heat_flow_4)
• Soil heat flow 5, corrected for soil moisture(corr_soil_heat_flow_5)
• Soil heat flow 1(soil_heat_flow_1)
• Soil heat flow 3(soil_heat_flow_3)
• Soil heat flow 2(soil_heat_flow_2)
• Reference temperature in enclosure(temp_reference)
• Soil heat flow 5(soil_heat_flow_5)
• Soil heat flow 4(soil_heat_flow_4)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Surface soil heat flux 5(surface_soil_heat_flux_5)
• Surface soil heat flux 3(surface_soil_heat_flux_3)
• Surface soil heat flux 4(surface_soil_heat_flux_4)
• Time offset from base_time(time_offset)
• Soil heat flow 1, corrected for soil moisture(corr_soil_heat_flow_1)
• Surface soil heat flux 1(surface_soil_heat_flux_1)
• Soil heat flow 2, corrected for soil moisture(corr_soil_heat_flow_2)
• Surface soil heat flux 2(surface_soil_heat_flux_2)
• Half hour averaged soil temperature 5(soil_temp_5)
• Half hour averaged soil temperature 4(soil_temp_4)
• Soil temperature mean 3(soil_temp_3)
• Soil temperature 2(soil_temp_2)
• Soil temperature 1(soil_temp_1)
• Surface latent heat flux(latent_heat_flux)
• AEM position indicator 15 to 30 mins(home_signal_30)
• Surface sensible heat flux(sensible_heat_flux)

• Bottom air temperature(temp_air_bottom)
• lon(lon)
• Wind speed arithmetic mean(wspd_arith_mean)
• Top relative humidity (fractional)(rh_top_fraction)
• Wind speed vector mean(wspd_vec_mean)
• Bottom T/RH sensor temperature(temp_trh_bottom)
• AEM position indicator(home_signal)
• base time in epoch(base_time)
• Atmospheric pressure(atmos_pressure)
• Top vapor pressure(vapor_pressure_top)
• Top T/RH sensor temperature(temp_trh_top)
• Bottom vapor pressure(vapor_pressure_bottom)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Top air temperature(temp_air_top)
• Time offset from base_time(time_offset)
• -180.0 - +180.0(alt)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Net radiation(net_radiation)
• North Latitude(lat)
• Wind direction vector mean(wdir_vec_mean)
• Reference temperature in enclosure(temp_reference)