D Q R Report

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/18/1995	1230	08/18/1995	1500	Incorrect
08/16/1995	0600	08/16/1995	1530	Incorrect
08/19/1995	1100	08/19/1995	1500	Incorrect
08/20/1995	0900	08/20/1995	1500	Incorrect
08/21/1995	0600	08/21/1995	1500	Incorrect

Sometime before August 16, 1995 the AC/DC converter was switched off and the instrument heaters were switched on. The solar panel was not able to keep the battery voltage up under these conditions. Much of the data for the periods indicated is incorrect, especially data from the sensors that require 12 volts DC power. The data would have to be inspected to determine what data is correct and what is incorrect. It would be safest to exclude all data from those periods from any analysis. Site operations switched the heaters off and turned the converter back on on August 21, 1995. As reported in a recent DQR, the fluxes from the EBBR are incorrect presently because of a malfunctioning T/RH probe; no spares are presently available.

Subject:	SGP/EBBR/E13 - Battery Voltage Drop
DataStreams:	sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1
Description:	Sometime before August 16, 1995 the AC/DC converter was switched off and the instrument heaters were switched on. The solar panel was not able to keep the battery voltage up under these conditions. Much of the data for the periods indicated is incorrect, especially data from the sensors that require 12 volts DC power. The data would have to be inspected to determine what data is correct and what is incorrect. It would be safest to exclude all data from those periods from any analysis. Site operations switched the heaters off and turned the converter back on on August 21, 1995. As reported in a recent DQR, the fluxes from the EBBR are incorrect presently because of a malfunctioning T/RH probe; no spares are presently available.
Suggestions:
Measurements:	sgp15ebbrE13.b1: home_signal soil_heat_flow_4_mv soil_heat_flow_1_mv lon soil_temp_3_rr temp_trh_right_rr soil_moisture_4_r battery_voltage net_radiation_mv soil_heat_flow_2_mv base_time soil_temp_5_rr soil_moisture_3_r soil_heat_flow_5_mv rh_left_mv rh_right_mv wdir_vec_mean_mv temp_air_right temp_air_left lat soil_moisture_2_r soil_heat_flow_3_mv temp_reference_rr soil_temp_2_rr alt time_offset atmos_pressure_mv soil_temp_1_rr temp_trh_left_rr soil_moisture_1_r wspd_arith_mean soil_moisture_5_r soil_temp_4_rr more sgp5ebbrE13.b1: wspd_arith_mean rh_top_fraction net_radiation temp_trh_top vapor_pressure_top vapor_pressure_bottom temp_trh_bottom wdir_vec_mean alt wspd_vec_mean lat rh_bottom_fraction temp_air_bottom temp_reference time_offset atmos_pressure temp_air_top lon wdir_vec_std home_signal base_time more sgp30ebbrE13.b1: bowen_ratio temp_trh_top alt home_signal_15 rh_top_fraction energy_storage_change_3 energy_storage_change_2 energy_storage_change_1 surface_soil_heat_flux_5 wspd_arith_mean temp_reference wdir_vec_mean energy_storage_change_5 energy_storage_change_4 wdir_vec_std base_time wspd_vec_mean time_offset rh_bottom_fraction soil_heat_flow_2 soil_heat_flow_3 soil_heat_flow_4 soil_heat_flow_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 surface_soil_heat_flux_1 surface_soil_heat_flux_2 soil_heat_flow_1 sensible_heat_flux temp_air_bottom soil_moisture_3 soil_moisture_4 corr_soil_heat_flow_1 soil_moisture_5 temp_air_top corr_soil_heat_flow_2 corr_soil_heat_flow_3 corr_soil_heat_flow_4 corr_soil_heat_flow_5 soil_moisture_1 soil_moisture_2 lon surface_soil_heat_flux_avg net_radiation home_signal_30 atmos_pressure soil_temp_5 soil_temp_4 lat soil_temp_3 soil_heat_capacity_4 soil_temp_2 soil_heat_capacity_5 latent_heat_flux soil_temp_1 soil_heat_capacity_2 vapor_pressure_bottom soil_heat_capacity_3 temp_trh_bottom vapor_pressure_top soil_heat_capacity_1 more