netcdf sgpaafpopsU2.a1.20230829.133943 { dimensions: time = UNLIMITED ; // (7570 currently) optical_diameter = 100 ; bound = 2 ; variables: int base_time ; base_time:string = "2023-08-29 00:00:00 0:00" ; base_time:long_name = "Base time in Epoch" ; base_time:units = "seconds since 1970-1-1 0:00:00 0:00" ; base_time:ancillary_variables = "time_offset" ; double time_offset(time) ; time_offset:long_name = "Time offset from base_time" ; time_offset:units = "seconds since 2023-08-29 00:00:00 0:00" ; time_offset:ancillary_variables = "base_time" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2023-08-29 00:00:00 0:00" ; time:standard_name = "time" ; float optical_diameter(optical_diameter) ; optical_diameter:long_name = "Optical diameter" ; optical_diameter:units = "nm" ; optical_diameter:bounds = "optical_diameter_bounds" ; float optical_diameter_bounds(optical_diameter, bound) ; float size_distribution(time, optical_diameter) ; size_distribution:long_name = "Particle size distribution in dN" ; size_distribution:units = "1/cm^3" ; size_distribution:missing_value = -9999.f ; size_distribution:equation = "raw_bin_counts/sample_flow_rate_smoothed;" ; float total_number_concentration(time) ; total_number_concentration:long_name = "Total number concentration" ; total_number_concentration:units = "1/cm^3" ; total_number_concentration:missing_value = -9999.f ; total_number_concentration:equation = "SUM(size_distribution[i])" ; float sample_flow_rate_smoothed(time) ; sample_flow_rate_smoothed:long_name = "Smoothed sample flow rate" ; sample_flow_rate_smoothed:units = "cm^3/s" ; sample_flow_rate_smoothed:missing_value = -9999.f ; sample_flow_rate_smoothed:smoothing_window_width = "2 minutes" ; float total_count_rate(time) ; total_count_rate:long_name = "Total number of particles per second including outside the size range" ; total_count_rate:units = "1/s" ; total_count_rate:missing_value = -9999.f ; float sample_flow_rate(time) ; sample_flow_rate:long_name = "POPS sample flow rate measured through the entrant tubing" ; sample_flow_rate:units = "cm^3/s" ; sample_flow_rate:missing_value = -9999.f ; float raw_bin_counts(time, optical_diameter) ; raw_bin_counts:long_name = "Raw counts in each bin" ; raw_bin_counts:units = "count" ; raw_bin_counts:missing_value = -9999.f ; float baseline(time) ; baseline:long_name = "Measured signal in optical cavity in absence of light" ; baseline:units = "1" ; baseline:missing_value = -9999.f ; float baseline_threshold(time) ; baseline_threshold:long_name = "Threshold above baseline for values to be counted as valid particles" ; baseline_threshold:units = "1" ; baseline_threshold:missing_value = -9999.f ; float baseline_std(time) ; baseline_std:long_name = "Standard deviation of noise on baseline signal" ; baseline_std:units = "1" ; baseline_std:missing_value = -9999.f ; float baseline_threshold_multiplier(time) ; baseline_threshold_multiplier:long_name = "Threshold multiplier * std" ; baseline_threshold_multiplier:units = "1" ; baseline_threshold_multiplier:missing_value = -9999.f ; float baseline_start_value(time) ; baseline_start_value:long_name = "Starting value of baseline" ; baseline_start_value:units = "1" ; baseline_start_value:missing_value = -9999.f ; float atm_pressure(time) ; atm_pressure:long_name = "Ambient atmospheric pressure" ; atm_pressure:units = "hPa" ; atm_pressure:missing_value = -9999.f ; float temp_board(time) ; temp_board:long_name = "Temperature of POPS electronics board" ; temp_board:units = "degC" ; temp_board:missing_value = -9999.f ; float pump_hours(time) ; pump_hours:long_name = "Pump life-time hours" ; pump_hours:units = "hour" ; pump_hours:missing_value = -9999.f ; float pump_feedback(time) ; pump_feedback:long_name = "Pump feedback control voltage" ; pump_feedback:units = "mV" ; pump_feedback:missing_value = -9999.f ; float flow_setting(time) ; flow_setting:long_name = "Voltage of flow set point" ; flow_setting:units = "V" ; flow_setting:missing_value = -9999.f ; flow_setting:comment = "Should correspond to calibrated 3.00 cm^2/s flow rate" ; float laser_temp(time) ; laser_temp:long_name = "Temperature of laser diode" ; laser_temp:units = "degC" ; laser_temp:missing_value = -9999.f ; float laser_monitor(time) ; laser_monitor:long_name = "Output laser power" ; laser_monitor:units = "1" ; laser_monitor:missing_value = -9999.f ; float laser_current(time) ; laser_current:long_name = "Laser diode current" ; laser_current:units = "mA" ; laser_current:missing_value = -9999.f ; float laser_feedback(time) ; laser_feedback:long_name = "Feedback on laser diode circuit" ; laser_feedback:units = "mV" ; laser_feedback:missing_value = -9999.f ; float battery_voltage(time) ; battery_voltage:long_name = "Input power supply voltage" ; battery_voltage:units = "V" ; battery_voltage:missing_value = -9999.f ; float aerosol_temperature(time) ; aerosol_temperature:long_name = "Aerosol temperature" ; aerosol_temperature:units = "degC" ; aerosol_temperature:missing_value = -9999.f ; float min_peak_points(time) ; min_peak_points:long_name = "Minimum points to be counted as a valid peak" ; min_peak_points:units = "1" ; min_peak_points:missing_value = -9999.f ; float max_peak_points(time) ; max_peak_points:long_name = "Maximum points to be counted as a valid peak" ; max_peak_points:units = "1" ; max_peak_points:missing_value = -9999.f ; float raw_points(time) ; raw_points:long_name = "Number of raw points to output for randomized background analysis" ; raw_points:units = "1" ; raw_points:missing_value = -9999.f ; float log_min(time) ; log_min:long_name = "Log10 of minimum bin size in nm" ; log_min:units = "1" ; log_min:missing_value = -9999.f ; float log_max(time) ; log_max:long_name = "Log10 of maximum bin size in nm" ; log_max:units = "1" ; log_max:missing_value = -9999.f ; float lat ; lat:long_name = "North latitude" ; lat:units = "degree_N" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; lat:missing_value = -9999.f ; lat:standard_name = "latitude" ; float lon ; lon:long_name = "East longitude" ; lon:units = "degree_E" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; lon:missing_value = -9999.f ; lon:standard_name = "longitude" ; float alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; alt:missing_value = -9999.f ; alt:standard_name = "altitude" ; // global attributes: :command_line = "aafpops_ingest -s sgp -f U2 -DR" ; :Conventions = "ARM-1.3" ; :process_version = "ingest-aafpops-1.0-0.el7" ; :dod_version = "aafpops-a1-1.0" ; :input_source = "/data/collection/sgp/sgpaafpopsU2.00/HK_20230829x001.csv" ; :site_id = "sgp" ; :platform_id = "aafpops" ; :facility_id = "U2" ; :data_level = "a1" ; :location_description = "Southern Great Plains (SGP), ArcticShark Unmanned Aerial System" ; :datastream = "sgpaafpopsU2.a1" ; :doi = "10.5439/2310935" ; :history = "created by user dsmgr on machine prod-proc3.adc.arm.gov at 2024-04-05 16:46:44, using ingest-aafpops-1.0-0.el7" ; }