netcdf enamergedsmpsuhsasC1.c1.20230810.000000 { dimensions: time = UNLIMITED ; // (24 currently) merged_diameter_mobility = 134 ; diameter_optical = 99 ; diameter_mobility = 192 ; bound = 2 ; complex = 2 ; variables: int base_time ; base_time:string = "2023-08-10 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 2023-08-10 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 2023-08-10 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 = -1800., 1800. ; short complex(complex) ; complex:long_name = "Coordinate variable for complex" ; complex:units = "1" ; complex:flag_values = 0s, 1s ; complex:flag_meanings = "real imaginary" ; complex:flag_0_description = "The real part of the complex number" ; complex:flag_1_description = "The imaginary part of the complex number" ; double merged_diameter_mobility(merged_diameter_mobility) ; merged_diameter_mobility:long_name = "Merged midpoint of geometric mean mobility diameter" ; merged_diameter_mobility:units = "nm" ; merged_diameter_mobility:bounds = "merged_diameter_mobility_bounds" ; double merged_diameter_mobility_bounds(merged_diameter_mobility, bound) ; merged_diameter_mobility_bounds:long_name = "Diameter_mobility_merged cell bounds" ; merged_diameter_mobility_bounds:units = "nm" ; float diameter_optical(diameter_optical) ; diameter_optical:long_name = "Midpoint of geometric mean optical diameter" ; diameter_optical:units = "nm" ; diameter_optical:bounds = "diameter_optical_bounds" ; float diameter_optical_bounds(diameter_optical, bound) ; diameter_optical_bounds:long_name = "Optical diameter bin boundaries" ; diameter_optical_bounds:units = "nm" ; float diameter_mobility(diameter_mobility) ; diameter_mobility:long_name = "Midpoint of geometric mean mobility diameter" ; diameter_mobility:units = "nm" ; diameter_mobility:bounds = "diameter_mobility_bounds" ; float diameter_mobility_bounds(diameter_mobility, bound) ; diameter_mobility_bounds:long_name = "Mobility diameter bin boundaries" ; diameter_mobility_bounds:units = "nm" ; float merged_dN_dlogDp(time, merged_diameter_mobility) ; merged_dN_dlogDp:long_name = "Number size distribution, merged" ; merged_dN_dlogDp:units = "1/cm^3" ; merged_dN_dlogDp:comment = "dN_dlogDp is the aerosol number size distribution where the number of particles per bin (dN) have been divided by the bin-width in log10 space (dlogDp). This simplifies comparison of size distributions from instruments with different bin spacing." ; merged_dN_dlogDp:missing_value = -9999.f ; merged_dN_dlogDp:ancillary_variables = "qc_merged_dN_dlogDp" ; int qc_merged_dN_dlogDp(time, merged_diameter_mobility) ; qc_merged_dN_dlogDp:long_name = "Quality check results on variable: Number size distribution, merged" ; qc_merged_dN_dlogDp:units = "1" ; qc_merged_dN_dlogDp:description = "This variable 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_merged_dN_dlogDp:standard_name = "quality_flag" ; qc_merged_dN_dlogDp:flag_method = "bit" ; qc_merged_dN_dlogDp:bit_1_description = "Input smps_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_dN_dlogDp:bit_1_assessment = "Bad" ; qc_merged_dN_dlogDp:bit_2_description = "Input uhsas_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_dN_dlogDp:bit_2_assessment = "Bad" ; qc_merged_dN_dlogDp:bit_3_description = "The merged_total_N_conc exceeds the sum of smps_total_N_conc and uhsas_total_N_conc." ; qc_merged_dN_dlogDp:bit_3_assessment = "Indeterminate" ; float merged_total_N_conc(time) ; merged_total_N_conc:long_name = "Total aerosol number concentration, merged" ; merged_total_N_conc:units = "1/cm^3" ; merged_total_N_conc:missing_value = -9999.f ; merged_total_N_conc:ancillary_variables = "qc_merged_total_N_conc" ; int qc_merged_total_N_conc(time) ; qc_merged_total_N_conc:long_name = "Quality check results on variable: Total aerosol number concentration, merged" ; qc_merged_total_N_conc:units = "1" ; qc_merged_total_N_conc:description = "This variable 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_merged_total_N_conc:standard_name = "quality_flag" ; qc_merged_total_N_conc:flag_method = "bit" ; qc_merged_total_N_conc:bit_1_description = "Input smps_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_total_N_conc:bit_1_assessment = "Bad" ; qc_merged_total_N_conc:bit_2_description = "Input uhsas_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_total_N_conc:bit_2_assessment = "Bad" ; qc_merged_total_N_conc:bit_3_description = "The merged_total_N_conc exceeds the sum of smps_total_N_conc and uhsas_total_N_conc." ; qc_merged_total_N_conc:bit_3_assessment = "Indeterminate" ; float merged_total_SA_conc(time) ; merged_total_SA_conc:long_name = "Total aerosol surface area, merged" ; merged_total_SA_conc:units = "nm^2/cm^3" ; merged_total_SA_conc:missing_value = -9999.f ; merged_total_SA_conc:ancillary_variables = "qc_merged_total_SA_conc" ; int qc_merged_total_SA_conc(time) ; qc_merged_total_SA_conc:long_name = "Quality check results on variable: Total aerosol surface area, merged" ; qc_merged_total_SA_conc:units = "1" ; qc_merged_total_SA_conc:description = "This variable 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_merged_total_SA_conc:standard_name = "quality_flag" ; qc_merged_total_SA_conc:flag_method = "bit" ; qc_merged_total_SA_conc:bit_1_description = "Input smps_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_total_SA_conc:bit_1_assessment = "Bad" ; qc_merged_total_SA_conc:bit_2_description = "Input uhsas_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_total_SA_conc:bit_2_assessment = "Bad" ; qc_merged_total_SA_conc:bit_3_description = "The merged_total_N_conc exceeds the sum of smps_total_N_conc and uhsas_total_N_conc." ; qc_merged_total_SA_conc:bit_3_assessment = "Indeterminate" ; float merged_total_V_conc(time) ; merged_total_V_conc:long_name = "Total aerosol volume, merged" ; merged_total_V_conc:units = "nm^3/cm^3" ; merged_total_V_conc:missing_value = -9999.f ; merged_total_V_conc:ancillary_variables = "qc_merged_total_V_conc" ; int qc_merged_total_V_conc(time) ; qc_merged_total_V_conc:long_name = "Quality check results on variable: Total aerosol volume, merged" ; qc_merged_total_V_conc:units = "1" ; qc_merged_total_V_conc:description = "This variable 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_merged_total_V_conc:standard_name = "quality_flag" ; qc_merged_total_V_conc:flag_method = "bit" ; qc_merged_total_V_conc:bit_1_description = "Input smps_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_total_V_conc:bit_1_assessment = "Bad" ; qc_merged_total_V_conc:bit_2_description = "Input uhsas_dN_dlogDp are missing or unreliable; merged value will be set to missing_value." ; qc_merged_total_V_conc:bit_2_assessment = "Bad" ; qc_merged_total_V_conc:bit_3_description = "The merged_total_N_conc exceeds the sum of smps_total_N_conc and uhsas_total_N_conc." ; qc_merged_total_V_conc:bit_3_assessment = "Indeterminate" ; float uhsas_total_N_conc(time) ; uhsas_total_N_conc:long_name = "Aerosol number concentration from integrated size distribution, UHSAS" ; uhsas_total_N_conc:units = "1/cm^3" ; uhsas_total_N_conc:missing_value = -9999.f ; uhsas_total_N_conc:cell_transform = "time: TRANS_BIN_AVERAGE" ; uhsas_total_N_conc:source = "enaaosuhsasC1.b1:total_N_conc" ; float smps_total_N_conc(time) ; smps_total_N_conc:long_name = "Aerosol number concentration from integrated size distribution, SMPS" ; smps_total_N_conc:units = "1/cm^3" ; smps_total_N_conc:missing_value = -9999.f ; smps_total_N_conc:cell_transform = "time: TRANS_BIN_AVERAGE" ; smps_total_N_conc:source = "enaaossmpsC1.b1:total_N_conc" ; float uhsas_dN_dlogDp(time, diameter_optical) ; uhsas_dN_dlogDp:long_name = "Number size distribution, optical diameter" ; uhsas_dN_dlogDp:units = "1/cm^3" ; uhsas_dN_dlogDp:comment = "dN_dlogDp is the aerosol number size distribution where the number of particles per bin (dN) have been divided by the bin-width in log10 space (dlogDp). This simplifies comparison of size distributions from instruments with different bin spacing." ; uhsas_dN_dlogDp:equation = "(N_TOF_input / ( (total_flow_rate-sheath_flow_rate)*1000/60 * delta_t)) / log10(upper_bound/lower_bound)" ; uhsas_dN_dlogDp:missing_value = -9999.f ; uhsas_dN_dlogDp:cell_transform = "time: TRANS_BIN_AVERAGE diameter_optical: TRANS_PASSTHROUGH" ; uhsas_dN_dlogDp:source = "enaaosuhsasC1.b1:dN_dlogDp" ; float smps_dN_dlogDp(time, diameter_mobility) ; smps_dN_dlogDp:long_name = "Number size distribution, electrical mobility diameter" ; smps_dN_dlogDp:units = "1/cm^3" ; smps_dN_dlogDp:comment = "dN_dlogDp is the aerosol number size distribution where the number of particles per bin (dN) have been divided by the bin-width in log10 space (dlogDp). This simplifies comparison of size distributions from instruments with different bin spacing." ; smps_dN_dlogDp:missing_value = -9999.f ; smps_dN_dlogDp:cell_transform = "time: TRANS_BIN_AVERAGE diameter_mobility: TRANS_PASSTHROUGH" ; smps_dN_dlogDp:source = "enaaossmpsC1.b1:dN_dlogDp" ; float n_ambient(time, complex) ; n_ambient:long_name = "Calculated Ambient Aerosol Complex Index of Refraction" ; n_ambient:units = "1" ; n_ambient:comment = "Derived from ACSM instrument data using mass concentrations of total organics, sulfate, nitrate, chloride, ammonium, and optical constants found in literature (see technical report)." ; n_ambient:missing_value = -9999.f ; n_ambient:ancillary_variables = "source_n_ambient" ; int source_n_ambient(time) ; source_n_ambient:long_name = "Source for variable: Calculated Ambient Aerosol Complex Index of Refraction" ; source_n_ambient:units = "1" ; source_n_ambient:description = "This variable contains integer values which should be interpreted as listed." ; source_n_ambient:flag_method = "integer" ; source_n_ambient:flag_0_description = "no_source_available" ; source_n_ambient:flag_1_description = "enaaosacsmC1.b1" ; source_n_ambient:flag_1_comment = "Average of one hour of acsm.b1 data" ; source_n_ambient:flag_2_description = "enaaosacsmC1.b1" ; source_n_ambient:flag_2_comment = "Average of one week of acsm.b1 data" ; 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" ; lat:source = "" ; 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" ; lon:source = "" ; float alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; alt:standard_name = "altitude" ; alt:source = "" ; // global attributes: :command_line = "mergedsmpsuhsas -s ena -f C1 -b 20221101 -e 20230817" ; :Conventions = "ARM-1.3" ; :process_version = "vap-mergedsmpsuhsas-0.1-1.el7" ; :dod_version = "mergedsmpsuhsas-c1-1.1" ; :input_datastreams = "enaaosacsmC1.b1 : 1.0 : 20230803.002247\n", "enaaossmpsC1.b1 : 1.2 : 20230809.000000-20230811.000000\n", "enaaosuhsasC1.b1 : 1.2 : 20230809.000006-20230811.000000" ; :site_id = "ena" ; :platform_id = "mergedsmpsuhsas" ; :facility_id = "C1" ; :data_level = "c1" ; :location_description = "Eastern North Atlantic (ENA), Graciosa Island, Azores" ; :datastream = "enamergedsmpsuhsasC1.c1" ; :doi = "10.5439/1984053" ; :history = "created by user levin on machine dev-proc2.adc.arm.gov at 2023-08-22 01:34:45, using vap-mergedsmpsuhsas-0.1-1.el7" ; }