D Q R Report

DQRID : D011206.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
09/14/2000	1130	03/31/2001	2356	Suspect

Subject:	SGP EBBR E26 - Low Battery Voltage
DataStreams:	sgp30ebbrE26.b1, sgp15ebbrE26.b1, sgp5ebbrE26.b1
Description:	During the indicated the period the battery voltage often dropped to 10.4 volts or below. At voltages less than 10.5 volts none of the selected measurements can be considered to be correct. The battery charging capacity was insufficient to maintain voltage at night. If the battery voltage is less than 10.5 volts (see battery voltage in the 15 minute data files), do not use the data.
Suggestions:
Measurements:	sgp5ebbrE26.b1: vapor_pressure_top rh_top_fraction wdir_vec_mean temp_trh_bottom wspd_arith_mean atmos_pressure home_signal temp_reference temp_trh_top temp_air_bottom rh_bottom_fraction wdir_vec_std vapor_pressure_bottom net_radiation wspd_vec_mean temp_air_top more sgp15ebbrE26.b1: soil_temp_3_rr soil_moisture_1_r soil_moisture_5_r rh_left_mv soil_moisture_5_rr soil_heat_flow_3_mv atmos_pressure_mv temp_reference_rr soil_temp_5_rr soil_moisture_2_r soil_heat_flow_5_mv soil_temp_2_rr soil_moisture_2_rr temp_trh_left_rr rh_right_mv soil_moisture_3_r temp_trh_right_rr temp_air_right soil_moisture_1_rr soil_temp_4_rr soil_moisture_4_rr net_radiation_mv soil_heat_flow_2_mv soil_moisture_4_r home_signal temp_air_left wspd_arith_mean soil_moisture_3_rr soil_heat_flow_1_mv soil_temp_1_rr wdir_vec_mean_mv soil_heat_flow_4_mv more sgp30ebbrE26.b1: home_signal_15 temp_reference surface_soil_heat_flux_avg wspd_vec_mean wspd_arith_mean temp_air_top vapor_pressure_top soil_heat_capacity_4 soil_heat_capacity_5 corr_soil_heat_flow_5 corr_soil_heat_flow_2 corr_soil_heat_flow_1 corr_soil_heat_flow_4 corr_soil_heat_flow_3 latent_heat_flux soil_heat_capacity_1 soil_heat_capacity_2 soil_heat_capacity_3 temp_air_bottom surface_soil_heat_flux_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 temp_trh_top wdir_vec_mean surface_soil_heat_flux_1 surface_soil_heat_flux_2 soil_moisture_3 soil_moisture_4 soil_moisture_1 soil_moisture_2 net_radiation soil_moisture_5 bowen_ratio rh_bottom_fraction home_signal_30 atmos_pressure wdir_vec_std temp_trh_bottom energy_storage_change_1 energy_storage_change_4 energy_storage_change_5 energy_storage_change_2 energy_storage_change_3 rh_top_fraction soil_temp_5 sensible_heat_flux soil_temp_4 soil_heat_flow_4 soil_heat_flow_5 soil_temp_3 soil_temp_2 soil_temp_1 soil_heat_flow_1 soil_heat_flow_2 vapor_pressure_bottom soil_heat_flow_3 more

Close this window