netcdf sgpaosnanosmpsE13.a1.20240501.000000 { dimensions: time = UNLIMITED ; // (288 currently) diameter_midpoint = 192 ; variables: int base_time ; base_time:string = "2024-05-01 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 2024-05-01 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 2024-05-01 00:00:00 0:00" ; time:standard_name = "time" ; float diameter_midpoint(diameter_midpoint) ; diameter_midpoint:long_name = "Bins for diameter midpoint measurements" ; diameter_midpoint:units = "nm" ; float sample_temperature(time) ; sample_temperature:long_name = "Sample temperature" ; sample_temperature:units = "degC" ; sample_temperature:missing_value = -9999.f ; float sample_relative_humidity(time) ; sample_relative_humidity:long_name = "Sample relative humidity" ; sample_relative_humidity:units = "%" ; sample_relative_humidity:missing_value = -9999.f ; float sample_pressure(time) ; sample_pressure:long_name = "Sample pressure" ; sample_pressure:units = "kPa" ; sample_pressure:missing_value = -9999.f ; float mean_free_path(time) ; mean_free_path:long_name = "Mean free path" ; mean_free_path:units = "m" ; mean_free_path:missing_value = -9999.f ; float gas_viscosity(time) ; gas_viscosity:long_name = "Gas viscosity" ; gas_viscosity:units = "Pa*s" ; gas_viscosity:missing_value = -9999.f ; float number_size_distribution(time, diameter_midpoint) ; number_size_distribution:long_name = "Number size distribution (dN/dlogDp)" ; number_size_distribution:units = "count/cm^3" ; number_size_distribution:missing_value = -9999.f ; float sheath_flow(time) ; sheath_flow:long_name = "Sheath flow rate set point" ; sheath_flow:units = "L/min" ; sheath_flow:missing_value = -9999.f ; float aerosol_flow(time) ; aerosol_flow:long_name = "Aerosol flow rate set point" ; aerosol_flow:units = "L/min" ; aerosol_flow:missing_value = -9999.f ; float bypass_flow(time) ; bypass_flow:long_name = "Bypass flow rate set point" ; bypass_flow:units = "L/min" ; bypass_flow:missing_value = -9999.f ; float low_voltage(time) ; low_voltage:long_name = "Low voltage reading" ; low_voltage:units = "V" ; low_voltage:missing_value = -9999.f ; float high_voltage(time) ; high_voltage:long_name = "High voltage reading" ; high_voltage:units = "V" ; high_voltage:missing_value = -9999.f ; float lower_size(time) ; lower_size:long_name = "Lower size limit" ; lower_size:units = "nm" ; lower_size:missing_value = -9999.f ; int status_flag(time) ; status_flag:long_name = "Scan status flag" ; status_flag:units = "unitless" ; status_flag:missing_value = -9999 ; status_flag:flag_masks = 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536 ; status_flag:flag_meanings = "no_impactor low_aerosol_flow high_impactor_delta_pressure DMA_not_detected sheath_flow_error DMA_voltage_error DMA_voltage_shelf_check_error case_temperature_error neutralizer_detection_error maximum_hours_exceeded neutralizer_error detector_data_error sheath_pressure_error blower_current_error detector_firmware_not_supported sheath_flow_warning unknown_error" ; status_flag:bit_1_description = "no_impactor" ; status_flag:bit_2_description = "low_aerosol_flow" ; status_flag:bit_3_description = "high_impactor_delta_pressure" ; status_flag:bit_4_description = "DMA_not_detected" ; status_flag:bit_5_description = "sheath_flow_error" ; status_flag:bit_6_description = "DMA_voltage_error" ; status_flag:bit_7_description = "DMA_voltage_shelf_check_error" ; status_flag:bit_8_description = "case_temperature_error" ; status_flag:bit_9_description = "neutralizer_detection_error" ; status_flag:bit_10_description = "maximum_hours_exceeded" ; status_flag:bit_11_description = "neutralizer_error" ; status_flag:bit_12_description = "detector_data_error" ; status_flag:bit_13_description = "sheath_pressure_error" ; status_flag:bit_14_description = "blower_current_error" ; status_flag:bit_15_description = "detector_firmware_not_supported" ; status_flag:bit_16_description = "sheath_flow_warning" ; status_flag:bit_17_description = "unknown_error" ; status_flag:comment = "A value of 0 indicates a normal scan" ; float d50(time) ; d50:long_name = "50 percent cut-point diameter of the impactor" ; d50:units = "nm" ; d50:missing_value = -9999.f ; float median(time) ; median:long_name = "Median diameter of size distribution" ; median:units = "nm" ; median:missing_value = -9999.f ; float mean(time) ; mean:long_name = "Mean diameter of size distribution" ; mean:units = "nm" ; mean:missing_value = -9999.f ; float geometric_mean(time) ; geometric_mean:long_name = "Mean diameter of size distribution using a geometric average" ; geometric_mean:units = "nm" ; geometric_mean:missing_value = -9999.f ; float geometric_mean_std(time) ; geometric_mean_std:long_name = "Standard deviation of mean diameter of size distribution using geometric average" ; geometric_mean_std:units = "nm" ; geometric_mean_std:missing_value = -9999.f ; float mode(time) ; mode:long_name = "Mode diameter of size distribution" ; mode:units = "nm" ; mode:missing_value = -9999.f ; float total_concentration(time) ; total_concentration:long_name = "Total concentration" ; total_concentration:units = "count/cm^3" ; total_concentration:missing_value = -9999.f ; float flow_time(time) ; flow_time:long_name = "Calculated time for the aerosol to flow through the sample column of the classifier" ; flow_time:units = "s" ; flow_time:missing_value = -9999.f ; int hv_polarity ; hv_polarity:long_name = "HV polarity" ; hv_polarity:units = "unitless" ; hv_polarity:missing_value = -9999 ; hv_polarity:flag_values = -1, 1 ; hv_polarity:flag_meanings = "negative positive" ; int multiple_charge_correction ; multiple_charge_correction:long_name = "Multiple charge correction" ; multiple_charge_correction:units = "unitless" ; multiple_charge_correction:missing_value = -9999 ; multiple_charge_correction:flag_values = 0, 1 ; multiple_charge_correction:flag_meanings = "false true" ; int diffusion_correction ; diffusion_correction:long_name = "Diffusion correction" ; diffusion_correction:units = "unitless" ; diffusion_correction:missing_value = -9999 ; diffusion_correction:flag_values = 0, 1 ; diffusion_correction:flag_meanings = "false true" ; int nanoparticle_agglomerate_mobility_analysis ; nanoparticle_agglomerate_mobility_analysis:long_name = "Nanoparticle agglomerate mobility analysis" ; nanoparticle_agglomerate_mobility_analysis:units = "unitless" ; nanoparticle_agglomerate_mobility_analysis:missing_value = -9999 ; nanoparticle_agglomerate_mobility_analysis:flag_values = 0, 1 ; nanoparticle_agglomerate_mobility_analysis:flag_meanings = "false true" ; float DMA_inner_radius ; DMA_inner_radius:long_name = "Inner radius of DMA" ; DMA_inner_radius:units = "cm" ; DMA_inner_radius:missing_value = -9999.f ; float DMA_outer_radius ; DMA_outer_radius:long_name = "Outer radius of DMA" ; DMA_outer_radius:units = "cm" ; DMA_outer_radius:missing_value = -9999.f ; float DMA_characteristic_length ; DMA_characteristic_length:long_name = "Characteristic length of DMA" ; DMA_characteristic_length:units = "cm" ; DMA_characteristic_length:missing_value = -9999.f ; float reference_mean_free_path ; reference_mean_free_path:long_name = "Reference mean free path" ; reference_mean_free_path:units = "m" ; reference_mean_free_path:missing_value = -9999.f ; float reference_gas_viscosity ; reference_gas_viscosity:long_name = "Reference gas viscosity" ; reference_gas_viscosity:units = "Pa*s" ; reference_gas_viscosity:missing_value = -9999.f ; float reference_gas_temperature ; reference_gas_temperature:long_name = "Reference gas temperature" ; reference_gas_temperature:units = "K" ; reference_gas_temperature:missing_value = -9999.f ; float reference_gas_pressure ; reference_gas_pressure:long_name = "Reference gas pressure" ; reference_gas_pressure:units = "kPa" ; reference_gas_pressure:missing_value = -9999.f ; float Sutherland_constant ; Sutherland_constant:long_name = "Sutherland constant" ; Sutherland_constant:units = "K" ; Sutherland_constant:missing_value = -9999.f ; float tube_length ; tube_length:long_name = "Tube length" ; tube_length:units = "cm" ; tube_length:missing_value = -9999.f ; float tube_diameter ; tube_diameter:long_name = "Tube diameter" ; tube_diameter:units = "cm" ; tube_diameter: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: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:standard_name = "longitude" ; float alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; alt:standard_name = "altitude" ; // global attributes: :command_line = "aosnanosmps_ingest -s sgp -f E13" ; :Conventions = "ARM-1.1" ; :process_version = "ingest-aosnanosmps-1.1-1.el7" ; :dod_version = "aosnanosmps-a1-1.0" ; :input_source = "/data/collection/sgp/sgpaosnanosmpsE13.00/sgpaosE13.nsmps.05m.00.20240501.000000.raw.tsv" ; :site_id = "sgp" ; :platform_id = "aosnanosmps" ; :facility_id = "E13" ; :data_level = "a1" ; :location_description = "Southern Great Plains (SGP), Lamont, Oklahoma" ; :datastream = "sgpaosnanosmpsE13.a1" ; :sampling_interval = "5 minutes" ; :scan_up_time = "260 s" ; :retrace_time = "2 s" ; :scans_per_sample = "1" ; :td = "0.913000 s" ; :DMA_model = "3085" ; :DMA_serial_number = "30851353001" ; :classifier_model = "3082" ; :classifier_serial_number = "3082021408001" ; :neutralizer_model = "3077" ; :neutralizer_serial_number = "Unknown" ; :detector_model = "3776" ; :detector_sample_flow = "0.050000 L/min" ; :channels_per_decade = "64" ; :units = "dw/dlogDp" ; :weight = "Number" ; :doi = "10.5439/1242975" ; :history = "created by user dsmgr on machine prod-proc3.adc.arm.gov at 2024-05-01 01:46:00, using ingest-aosnanosmps-1.1-1.el7" ; }