netcdf sgpaosclap3wC1.b1.20170929.000000 { dimensions: time = UNLIMITED ; // (720 currently) bound = 2 ; filter = 8 ; variables: int base_time ; base_time:string = "2017-09-29 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 2017-09-29 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 2017-09-29 00:00:00 0:00" ; time:bounds = "time_bounds" ; time:standard_name = "time" ; double time_bounds(time, bound) ; time_bounds:long_name = "Time cell bounds" ; time_bounds:bound_offsets = 0., 60. ; float transmittance_blue(time) ; transmittance_blue:long_name = "Transmittance, blue channel" ; transmittance_blue:units = "unitless" ; transmittance_blue:valid_min = 0.65f ; transmittance_blue:valid_max = 1.f ; transmittance_blue:missing_value = -9999.f ; transmittance_blue:ancillary_variables = "qc_transmittance_blue" ; transmittance_blue:measured_wavelength = "467 nm" ; int qc_transmittance_blue(time) ; qc_transmittance_blue:long_name = "Quality check results on field: Transmittance, blue channel" ; qc_transmittance_blue:units = "unitless" ; qc_transmittance_blue: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_transmittance_blue:tr_green_min_warning = 0.7f ; qc_transmittance_blue:tr_mismatch_warning = 0.01f ; qc_transmittance_blue:transmittance_min_warning = 0.7f ; qc_transmittance_blue:transmittance_max_warning = 1.f ; qc_transmittance_blue:flag_method = "bit" ; qc_transmittance_blue:bit_1_description = "Value is equal to missing_value." ; qc_transmittance_blue:bit_1_assessment = "Bad" ; qc_transmittance_blue:bit_2_description = "Value is less than the valid_min." ; qc_transmittance_blue:bit_2_assessment = "Bad" ; qc_transmittance_blue:bit_3_description = "Value is greater than the valid_max." ; qc_transmittance_blue:bit_3_assessment = "Bad" ; qc_transmittance_blue:bit_4_description = "transmittance_green < tr_green_min_warning" ; qc_transmittance_blue:bit_4_assessment = "Indeterminate" ; qc_transmittance_blue:bit_5_description = "Not used" ; qc_transmittance_blue:bit_5_assessment = "Indeterminate" ; qc_transmittance_blue:bit_6_description = "transmittance_blue value < transmittance_min_warning or transmittance_blue value > transmittance_max_warning" ; qc_transmittance_blue:bit_6_assessment = "Indeterminate" ; qc_transmittance_blue:bit_7_assessment = "Bad" ; qc_transmittance_blue:bit_7_description = "HEPA filter placed in sample stream" ; float transmittance_green(time) ; transmittance_green:long_name = "Transmittance, green channel" ; transmittance_green:units = "unitless" ; transmittance_green:valid_min = 0.65f ; transmittance_green:valid_max = 1.f ; transmittance_green:missing_value = -9999.f ; transmittance_green:ancillary_variables = "qc_transmittance_green" ; transmittance_green:measured_wavelength = "528 nm" ; int qc_transmittance_green(time) ; qc_transmittance_green:long_name = "Quality check results on field: Transmittance, green channel" ; qc_transmittance_green:units = "unitless" ; qc_transmittance_green: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_transmittance_green:tr_green_min_warning = 0.7f ; qc_transmittance_green:tr_mismatch_warning = 0.01f ; qc_transmittance_green:transmittance_min_warning = 0.7f ; qc_transmittance_green:transmittance_max_warning = 1.f ; qc_transmittance_green:flag_method = "bit" ; qc_transmittance_green:bit_1_description = "Value is equal to missing_value." ; qc_transmittance_green:bit_1_assessment = "Bad" ; qc_transmittance_green:bit_2_description = "Value is less than the valid_min." ; qc_transmittance_green:bit_2_assessment = "Bad" ; qc_transmittance_green:bit_3_description = "Value is greater than the valid_max." ; qc_transmittance_green:bit_3_assessment = "Bad" ; qc_transmittance_green:bit_4_description = "transmittance_green < tr_green_min_warning" ; qc_transmittance_green:bit_4_assessment = "Indeterminate" ; qc_transmittance_green:bit_5_description = "Not used" ; qc_transmittance_green:bit_5_assessment = "Indeterminate" ; qc_transmittance_green:bit_6_description = "transmittance_green value < transmittance_min_warning or transmittance_green value > transmittance_max_warning" ; qc_transmittance_green:bit_6_assessment = "Indeterminate" ; qc_transmittance_green:bit_7_description = "HEPA filter placed in sample stream" ; qc_transmittance_green:bit_7_assessment = "Bad" ; float transmittance_red(time) ; transmittance_red:long_name = "Transmittance, red channel" ; transmittance_red:units = "unitless" ; transmittance_red:valid_min = 0.65f ; transmittance_red:valid_max = 1.f ; transmittance_red:missing_value = -9999.f ; transmittance_red:ancillary_variables = "qc_transmittance_red" ; transmittance_red:measured_wavelength = "652 nm" ; int qc_transmittance_red(time) ; qc_transmittance_red:long_name = "Quality check results on field: Transmittance, red channel" ; qc_transmittance_red:units = "unitless" ; qc_transmittance_red: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_transmittance_red:tr_green_min_warning = 0.7f ; qc_transmittance_red:tr_mismatch_warning = 0.01f ; qc_transmittance_red:transmittance_min_warning = 0.7f ; qc_transmittance_red:transmittance_max_warning = 1.f ; qc_transmittance_red:flag_method = "bit" ; qc_transmittance_red:bit_1_description = "Value is equal to missing_value." ; qc_transmittance_red:bit_1_assessment = "Bad" ; qc_transmittance_red:bit_2_description = "Value is less than the valid_min." ; qc_transmittance_red:bit_2_assessment = "Bad" ; qc_transmittance_red:bit_3_description = "Value is greater than the valid_max." ; qc_transmittance_red:bit_3_assessment = "Bad" ; qc_transmittance_red:bit_4_description = "transmittance_green < tr_green_min_warning" ; qc_transmittance_red:bit_4_assessment = "Indeterminate" ; qc_transmittance_red:bit_5_description = "Not used" ; qc_transmittance_red:bit_5_assessment = "Indeterminate" ; qc_transmittance_red:bit_6_description = "transmittance_red value < transmittance_min_warning or transmittance_red value > transmittance_max_warning" ; qc_transmittance_red:bit_6_assessment = "Indeterminate" ; qc_transmittance_red:bit_7_assessment = "Bad" ; qc_transmittance_red:bit_7_description = "HEPA filter placed in sample stream" ; float absorbance_blue(time) ; absorbance_blue:long_name = "Light absorbance, blue channel" ; absorbance_blue:units = "unitless" ; absorbance_blue:missing_value = -9999.f ; absorbance_blue:measured_wavelength = "467 nm" ; absorbance_blue:equation = "ln(transmittance_blue[t]/transmittance_blue[t-1])" ; float absorbance_green(time) ; absorbance_green:long_name = "Light absorbance, green channel" ; absorbance_green:units = "unitless" ; absorbance_green:missing_value = -9999.f ; absorbance_green:measured_wavelength = "528 nm" ; absorbance_green:equation = "ln(transmittance_green[t]/transmittance_green[t-1])" ; float absorbance_red(time) ; absorbance_red:long_name = "Light absorbance, red channel" ; absorbance_red:units = "unitless" ; absorbance_red:missing_value = -9999.f ; absorbance_red:measured_wavelength = "652 nm" ; absorbance_red:equation = "ln(transmittance_red[t]/transmittance_red[t-1])" ; float sample_flow_rate(time) ; sample_flow_rate:long_name = "AOS CLAP3W mass flow" ; sample_flow_rate:units = "L/min" ; sample_flow_rate:flow_type = "mass flow" ; sample_flow_rate:reference_conditions = "volume of mass flow corresponding to 0 deg C, 1013.25 hPa" ; sample_flow_rate:valid_min = 0.f ; sample_flow_rate:valid_max = 2.f ; sample_flow_rate:missing_value = -9999.f ; sample_flow_rate:slope = 0.945f ; sample_flow_rate:a = -0.8817f ; sample_flow_rate:b = 1.1456f ; sample_flow_rate:c = -0.4717f ; sample_flow_rate:d = 0.0865f ; sample_flow_rate:comment = "NOAA calibrates the clap3w flow in the instrument software. The slope factor is used to trim the flow, and the a, b, c and d factors are used in a third order polynomial fit." ; sample_flow_rate:ancillary_variables = "qc_sample_flow_rate" ; int qc_sample_flow_rate(time) ; qc_sample_flow_rate:long_name = "Quality check results on field: AOS CLAP3W mass flow" ; qc_sample_flow_rate:units = "unitless" ; qc_sample_flow_rate: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_sample_flow_rate:flag_method = "bit" ; qc_sample_flow_rate:bit_1_description = "Value is equal to missing_value" ; qc_sample_flow_rate:bit_1_assessment = "Bad" ; qc_sample_flow_rate:bit_2_description = "Value is less than the valid_min" ; qc_sample_flow_rate:bit_2_assessment = "Bad" ; qc_sample_flow_rate:bit_3_description = "Value is greater than the valid_max" ; qc_sample_flow_rate:bit_3_assessment = "Bad" ; double seconds_after_transition(time) ; seconds_after_transition:long_name = "Seconds since last impactor transition" ; seconds_after_transition:units = "seconds" ; int impactor_state(time) ; impactor_state:long_name = "Impactor state in terms of aerodynamic diameter cut off" ; impactor_state:units = "unitless" ; impactor_state:valid_min = 0 ; impactor_state:valid_max = 11 ; impactor_state:missing_value = -9999 ; impactor_state:flag_values = 0, 1, 10 ; impactor_state:flag_meanings = "transition_between_particle_size 1um 10um" ; impactor_state:source = "sgpimpactorC1.b1:impactor_state" ; 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 state in terms of aerodynamic diameter cut off" ; 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:seconds_after_1um_warning = 144.f ; qc_impactor_state:seconds_after_1um_alarm = 126.f ; qc_impactor_state:seconds_after_10um_warning = 126.f ; qc_impactor_state:seconds_after_10um_alarm = 108.f ; qc_impactor_state:flag_method = "bit" ; qc_impactor_state:bit_1_description = "Impactor data is missing from impactor_state:source" ; qc_impactor_state:bit_1_assessment = "Bad" ; qc_impactor_state:bit_2_description = "qc_impactor_state from impactor datastream is bad" ; qc_impactor_state:bit_2_assessment = "Bad" ; qc_impactor_state:bit_3_description = "qc_impactor_state from impactor datastream is indeterminate" ; qc_impactor_state:bit_3_assessment = "Indeterminate" ; qc_impactor_state:bit_4_description = "(seconds_after_transition < seconds_after_1um_warning) and (impactor_state==1)" ; qc_impactor_state:bit_4_assessment = "Indeterminate" ; qc_impactor_state:bit_5_description = "(seconds_after_transition < seconds_after_1um_alarm) and (impactor_state==1)" ; qc_impactor_state:bit_5_assessment = "Bad" ; qc_impactor_state:bit_6_description = "(seconds_after_transition < seconds_after_10um_warning) and (impactor_state==10)" ; qc_impactor_state:bit_6_assessment = "Indeterminate" ; qc_impactor_state:bit_7_description = "(seconds_after_transition < seconds_after_10um_alarm) and (impactor_state==10)" ; qc_impactor_state:bit_7_assessment = "Bad" ; qc_impactor_state:operational_qc_bits = 1, 2, 3, 4, 5, 6, 7 ; qc_impactor_state:operational_qc_explanation = "These tests will frequently be flagged during normal operation and should be ignored by DQO metrics" ; int filter_id(time) ; filter_id:long_name = "Filter ID, increments for each new filter" ; filter_id:units = "count" ; filter_id:missing_value = -9999 ; int active_filter_number(time) ; active_filter_number:long_name = "Active filter number" ; active_filter_number:units = "count" ; active_filter_number:comment = "0 = none" ; active_filter_number:missing_value = -9999 ; float dilution_correction_factor(time) ; dilution_correction_factor:long_name = "Dilution correction factor" ; dilution_correction_factor:units = "unitless" ; dilution_correction_factor:source = "No dilution correction has been applied." ; dilution_correction_factor:comment = "equation = sample_flows / (sample_flows - dilution_flow)" ; float spot_size_area(filter) ; spot_size_area:long_name = "Spot size area for 8 filters" ; spot_size_area:units = "m^2" ; float transmittance_blue_normalization_factor(time) ; transmittance_blue_normalization_factor:long_name = "Normalization factor for blue transmittance, resets with each filter change" ; transmittance_blue_normalization_factor:units = "unitless" ; transmittance_blue_normalization_factor:missing_value = -9999.f ; float transmittance_green_normalization_factor(time) ; transmittance_green_normalization_factor:long_name = "Normalization factor for green transmittance, resets with each filter change" ; transmittance_green_normalization_factor:units = "unitless" ; transmittance_green_normalization_factor:missing_value = -9999.f ; float transmittance_red_normalization_factor(time) ; transmittance_red_normalization_factor:long_name = "Normalization factor for red transmittance, resets with each filter change" ; transmittance_red_normalization_factor:units = "unitless" ; transmittance_red_normalization_factor: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 = "aosdilutioncorr -s sgp -f C1" ; :Conventions = "ARM-1.2" ; :process_version = "ingest-aosdilutioncorr-1.7-0.el6" ; :dod_version = "aosclap3w-b1-1.6" ; :site_id = "sgp" ; :platform_id = "aosclap3w" ; :facility_id = "C1" ; :data_level = "b1" ; :location_description = "Southern Great Plains (SGP), Lamont, Oklahoma" ; :input_datastreams = "sgpaosflow2C1.a1 : 14.21 : 20170929.000000\n", "sgpaosflow1C1.a1 : 14.21 : 20170929.000000\n", "sgpaosccn100C1.a1 : 14.21 : 20170929.000000\n", "sgpaosclap3wC1.a1 : 14.21 : 20170929.000000\n", "sgpaoscpcC1.a1 : 14.21 : 20170929.000000\n", "sgpaosimpactorC1.b1 : 2.1 : 20170929.000000\n", "sgpaosnephdryC1.a1 : 14.21 : 20170929.000000\n", "sgpaosnephwetC1.a1 : 14.21 : 20170929.000000\n", "sgpaospsap3wC1.a1 : 14.21 : 20170929.000000" ; :configuration_file = "sgpaosclap3wC1.20090101.000000.config" ; :sampling_interval = "variable, contact mentor for details" ; :averaging_interval = "1 minute" ; :CLAP_Instrument = "Continuous Light Absorption Photometer" ; :Instrument_Manufacturer = "NOAA" ; :datastream = "sgpaosclap3wC1.b1" ; :doi = "10.5439/1337941" ; :history = "created by user dsmgr on machine ruby at 2017-09-29 07:13:01, using ingest-aosdilutioncorr-1.7-0.el6" ; }