netcdf gucaosimpactorM1.b1.20211017.000000 { dimensions: time = UNLIMITED ; // (43199 currently) variables: int base_time ; base_time:string = "2021-10-17 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 2021-10-17 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 2021-10-17 00:00:00 0:00" ; time:standard_name = "time" ; double seconds_after_transition(time) ; seconds_after_transition:long_name = "Seconds since last impactor transition" ; seconds_after_transition:units = "second" ; float P_Neph_Dry(time) ; P_Neph_Dry:long_name = "Pressure inside reference nephelometer" ; P_Neph_Dry:units = "hPa" ; P_Neph_Dry:missing_value = -9999.f ; P_Neph_Dry:source = "N/A" ; float P_1um_hourly_average(time) ; P_1um_hourly_average:long_name = "Hourly average of P_Neph_Dry when impactor state reports as 1. When state is 1, the sample being measured is 1 um or smaller." ; P_1um_hourly_average:units = "hPa" ; P_1um_hourly_average:missing_value = -9999.f ; float P_10um_hourly_average(time) ; P_10um_hourly_average:long_name = "Hourly average of P_Neph_Dry when impactor state reports as 10. When state is 10, the sample being measured is 10 um or smaller." ; P_10um_hourly_average:units = "hPa" ; P_10um_hourly_average:missing_value = -9999.f ; float dP_10um_minus_1um(time) ; dP_10um_minus_1um:long_name = "P_10um_hourly_average minus P_1um_hourly_average" ; dP_10um_minus_1um:units = "hPa" ; dP_10um_minus_1um:missing_value = -9999.f ; float impactor_inlet_RH(time) ; impactor_inlet_RH:long_name = "Relative humidity at the impactor inlet" ; impactor_inlet_RH:units = "%" ; impactor_inlet_RH:missing_value = -9999.f ; impactor_inlet_RH:source = "N/A" ; int impactor_state(time) ; impactor_state:long_name = "Impactor particle size cut" ; impactor_state:units = "unitless" ; impactor_state:missing_value = -9999 ; impactor_state:flag_values = 0, 1, 10, 11 ; impactor_state:flag_meanings = "transition_between_particle_size 1um 10um no_impactor" ; impactor_state:switching_mode = "on" ; impactor_state:default_state = 10 ; impactor_state:ancillary_variables = "qc_impactor_state" ; int qc_impactor_state(time) ; qc_impactor_state:long_name = "Quality check results on field: Impactor particle size cut" ; qc_impactor_state:units = "unitless" ; qc_impactor_state:description = "This field contains bit packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_impactor_state:dP_min_warning = 5.f ; qc_impactor_state:dP_min_alarm = 1.f ; qc_impactor_state:dP_max_warning = 21.f ; qc_impactor_state:seconds_after_1um_warning = 60.f ; qc_impactor_state:seconds_after_1um_alarm = 30.f ; qc_impactor_state:seconds_after_10um_warning = 10.f ; qc_impactor_state:seconds_after_10um_alarm = 5.f ; qc_impactor_state:RH_high_warning = 99.f ; qc_impactor_state:RH_high_alarm = 99.f ; qc_impactor_state:flag_method = "bit" ; qc_impactor_state:bit_1_description = "Value is equal to missing_value." ; qc_impactor_state:bit_1_assessment = "Bad" ; qc_impactor_state:bit_2_description = "impactor_state is 0" ; qc_impactor_state:bit_2_assessment = "Bad" ; qc_impactor_state:bit_3_description = "(seconds_after_transition < seconds_after_1um_warning) and (impactor_state==1)" ; qc_impactor_state:bit_3_assessment = "Indeterminate" ; qc_impactor_state:bit_4_description = "(seconds_after_transition < seconds_after_1um_alarm) and (impactor_state==1)" ; qc_impactor_state:bit_4_assessment = "Bad" ; qc_impactor_state:bit_5_description = "(seconds_after_transition < seconds_after_10um_warning) and (impactor_state==10)" ; qc_impactor_state:bit_5_assessment = "Indeterminate" ; qc_impactor_state:bit_6_description = "(seconds_after_transition < seconds_after_10um_alarm) and (impactor_state==10)" ; qc_impactor_state:bit_6_assessment = "Bad" ; qc_impactor_state:bit_7_description = "dP_10um_minus_1um < dP_min_warning and impactor_state:switching mode is ON" ; qc_impactor_state:bit_7_assessment = "Indeterminate" ; qc_impactor_state:bit_8_description = "dP_10um_minus_1um > dP_max_warning and impactor_state:switching_mode is ON" ; qc_impactor_state:bit_8_assessment = "Indeterminate" ; qc_impactor_state:bit_9_description = "dP_10um_minus_1um < dP_min_alarm and impactor_state:switching_mode is ON" ; qc_impactor_state:bit_9_assessment = "Bad" ; qc_impactor_state:bit_10_description = "impactor_inlet_RH > RH_high_warning" ; qc_impactor_state:bit_10_assessment = "Indeterminate" ; qc_impactor_state:bit_11_description = "impactor_inlet_RH > RH_high_alarm" ; qc_impactor_state:bit_11_assessment = "Bad" ; qc_impactor_state:operational_qc_bits = 1, 2, 3, 4, 5, 6 ; qc_impactor_state:operational_qc_explanation = "These tests will frequently be flagged during normal operation and should be ignored by DQO metrics" ; 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 = "aosimpactorcorr -s guc -f M1" ; :Conventions = "ARM-1.1" ; :process_version = "ingest-aosimpactorcorr-2.3-0.el7" ; :dod_version = "aosimpactor-b1-2.2" ; :site_id = "guc" ; :facility_id = "M1" ; :platform_id = "aosimpactor" ; :location_description = "Surface Atmosphere Integrated Field Laboratory (SAIL), Mt Crested Butte, Colorado" ; :data_level = "b1" ; :input_datastreams = "gucaosimpactorM1.a1 : 2.2 : 20211016.000000-20211017.000000" ; :configuration_file = "gucaosimpactorM1.20210401.000000.config" ; :sampling_interval = "1 second" ; :averaging_interval = "not averaged" ; :datastream = "gucaosimpactorM1.b1" ; :AOS_DAC_type = "D" ; :doi = "10.5439/1212864" ; :history = "created by user dsmgr on machine flint at 2021-10-18 13:42:55, using ingest-aosimpactorcorr-2.3-0.el7" ; }