SGP/EBBR/E8 - Reprocess: E8 EBBR Lightning Strike / sensor Replacements

DQR No:                               Platform: EBBR

Subject: E8 EBBR Lightning Strike

Date Submitted:  October 17, 1997
Submitted By:                         _x_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other

Platform/Measurement: EBBR/Numerous
	What level data: (raw,a0,a1,b1,c1 etc): a1 (15 and 30 minute)
						a0 (5 minute)

    What location was the data collected at: E8, Coldwater, KS

    Period of time in question
 	Begin Date 08/05/97   Time 2330 GMT
 	End Date   10/15/97   Time 1830 GMT

Discussion of Problem:

A lightning "strike" to the EF 8 Facility shortly after 0900 GMT on
14 July 1997 caused the failure of several EBBR sensors, the solar panel
voltage regulator, and the CR10 datalogger.  A previous DQR indicated this.
During the period listed above, all but one of the damaged parts were
replaced.  Replacements occurred on 22 July, 5 August, 19 August, and
16 September.  Some sensors began producing correct data immediately after
their replacement; however the temperature measurements were incorrect
until 15 October, when the reference temperature probe, with which they are
corrected, was reconnected.  Only the soil heat flow probe #2 remains to be
replaced.  Average soil, sensible, and latent heat fluxes are therefore
now ,still, incorrect, but can be recomputed using only four sets of soil
heat flow probes, as below.

ave_shf = (g1 +g3 + g4 + g5)/4

e = -(q + ave_shf)/(1 + bowen)

h = -(e + ave_shf + q)

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

• Wind direction vector mean (mV)(wdir_vec_mean_mv)
• lon(lon)
• Net radiation (mV)(net_radiation_mv)
• Left air temperature(temp_air_left)
• Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
• Wind speed arithmetic mean(wspd_arith_mean)
• Right relative humidity (mV)(rh_right_mv)
• Soil temperature 1 (resistance ratio)(soil_temp_1_rr)
• Soil heat flow 2 (mV)(soil_heat_flow_2_mv)
• Soil moisture 2 (resistance)(soil_moisture_2_r)
• Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
• Time offset from base_time(time_offset)
• Soil heat flow 1 (mV)(soil_heat_flow_1_mv)
• Left relative humidity (mV)(rh_left_mv)
• AEM position indicator(home_signal)
• Soil moisture 1 (resistance)(soil_moisture_1_r)
• Soil heat flow 4 (mV)(soil_heat_flow_4_mv)
• Soil moisture 5 (resistance)(soil_moisture_5_r)
• base time in epoch(base_time)
• Soil temperature 4 (resistance ratio)(soil_temp_4_rr)
• Soil heat flow 3 (mV)(soil_heat_flow_3_mv)
• Atmospheric pressure (mV)(atmos_pressure_mv)
• Soil temperature 5 (resistance ratio)(soil_temp_5_rr)
• Battery voltage(battery_voltage)
• Soil moisture 4 (resistance)(soil_moisture_4_r)
• Soil temperature 2 (resistance ratio)(soil_temp_2_rr)
• Reference temperature in enclosure (resistance ratio)(temp_reference_rr)
• Right air temperature(temp_air_right)
• Soil heat flow 5 (mV)(soil_heat_flow_5_mv)
• Soil temperature 3 (resistance ratio)(soil_temp_3_rr)
• -180.0 - +180.0(alt)
• Soil moisture 3 (resistance)(soil_moisture_3_r)
• North Latitude(lat)

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