netcdf sgpaosacsmcdceE13.c1.20200706.002128 { dimensions: time = UNLIMITED ; // (50 currently) bound = 2 ; variables: int base_time ; base_time:string = "2020-07-06 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 2020-07-06 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 2020-07-06 00:00:00 0:00" ; time:bounds = "time_bounds" ; time:calendar = "gregorian" ; time:standard_name = "time" ; double time_bounds(time, bound) ; time_bounds:long_name = "Time cell bounds" ; time_bounds:bound_offsets = -1800., 0. ; float instrument_serial_number(time) ; instrument_serial_number:long_name = "Instrument serial number" ; instrument_serial_number:units = "1" ; instrument_serial_number:source = "sgpaosacsmE13.b1:instrument_serial_number" ; int new_start(time) ; new_start:long_name = "New start acquisition indicator" ; new_start:units = "1" ; new_start:source = "sgpaosacsmE13.b1:new_start" ; new_start:missing_value = -9999 ; new_start:flag_values = 0, 1 ; new_start:flag_meanings = "continuous new" ; float mz_start(time) ; mz_start:long_name = "Starting m/z for scan range" ; mz_start:units = "amu" ; mz_start:source = "sgpaosacsmE13.b1:mz_start" ; mz_start:missing_value = -9999.f ; float mz_delta(time) ; mz_delta:long_name = "Delta m/z for scan mode" ; mz_delta:units = "amu" ; mz_delta:source = "sgpaosacsmE13.b1:mz_delta" ; mz_delta:missing_value = -9999.f ; float mz_scan_width(time) ; mz_scan_width:long_name = "Scan width for first scan range" ; mz_scan_width:units = "amu" ; mz_scan_width:source = "sgpaosacsmE13.b1:mz_scan_width" ; mz_scan_width:missing_value = -9999.f ; float mz_resolution(time) ; mz_resolution:long_name = "Channel m/z resolution" ; mz_resolution:units = "amu" ; mz_resolution:source = "sgpaosacsmE13.b1:mz_resolution" ; mz_resolution:missing_value = -9999.f ; int DAQ_version ; DAQ_version:long_name = "Program version number" ; DAQ_version:units = "1" ; DAQ_version:source = "" ; DAQ_version:missing_value = -9999 ; int number_scans_open(time) ; number_scans_open:long_name = "Number of open scans" ; number_scans_open:units = "1" ; number_scans_open:source = "sgpaosacsmE13.b1:number_scans_open" ; number_scans_open:missing_value = -9999 ; int number_scans_closed(time) ; number_scans_closed:long_name = "Number of closed scans" ; number_scans_closed:units = "1" ; number_scans_closed:source = "sgpaosacsmE13.b1:number_scans_closed" ; number_scans_closed:missing_value = -9999 ; int number_of_sets(time) ; number_of_sets:long_name = "Number of sets" ; number_of_sets:units = "1" ; number_of_sets:source = "sgpaosacsmE13.b1:number_of_sets" ; number_of_sets:missing_value = -9999 ; int saves_per_sample(time) ; saves_per_sample:long_name = "Number of saves per sample" ; saves_per_sample:units = "1" ; saves_per_sample:source = "sgpaosacsmE13.b1:saves_per_sample" ; saves_per_sample:missing_value = -9999 ; int saves_per_filter(time) ; saves_per_filter:long_name = "Number of saves per filter" ; saves_per_filter:units = "1" ; saves_per_filter:source = "sgpaosacsmE13.b1:saves_per_filter" ; saves_per_filter:missing_value = -9999 ; float RIE_ORG(time) ; RIE_ORG:long_name = "Relative ionization efficiency organic" ; RIE_ORG:units = "1" ; RIE_ORG:source = "sgpaosacsmE13.b1:RIE_ORG" ; RIE_ORG:missing_value = -9999.f ; float RIE_SO4(time) ; RIE_SO4:long_name = "Relative ionization efficiency sulfate" ; RIE_SO4:units = "1" ; RIE_SO4:source = "sgpaosacsmE13.b1:RIE_SO4" ; RIE_SO4:missing_value = -9999.f ; float RIE_NH4(time) ; RIE_NH4:long_name = "Relative ionization efficiency ammonium" ; RIE_NH4:units = "1" ; RIE_NH4:source = "sgpaosacsmE13.b1:RIE_NH4" ; RIE_NH4:missing_value = -9999.f ; float RIE_NO3(time) ; RIE_NO3:long_name = "Relative ionization efficiency nitrate" ; RIE_NO3:units = "1" ; RIE_NO3:source = "sgpaosacsmE13.b1:RIE_NO3" ; RIE_NO3:missing_value = -9999.f ; float RIE_CL(time) ; RIE_CL:long_name = "Relative ionization efficiency chloride" ; RIE_CL:units = "1" ; RIE_CL:source = "sgpaosacsmE13.b1:RIE_CL" ; RIE_CL:missing_value = -9999.f ; float CE(time) ; CE:long_name = "Collection efficiency" ; CE:units = "1" ; CE:source = "sgpaosacsmE13.b1:CE" ; CE:missing_value = -9999.f ; CE:comment = "Efficiency for how effectively aerosol particles stick in the collector and are volatilized. Typically assumed to be 0.5 but can be composition dependent." ; float airbeam_normalization_factor(time) ; airbeam_normalization_factor:long_name = "Airbeam normalization factor" ; airbeam_normalization_factor:units = "1" ; airbeam_normalization_factor:source = "sgpaosacsmE13.b1:airbeam_normalization_factor" ; airbeam_normalization_factor:missing_value = -9999.f ; airbeam_normalization_factor:comment = "Accounts for changes in system sensitivity by normalizing by the N2 signal in filtered air." ; airbeam_normalization_factor:computation = "= Ref_N2_signal / N2 signal in filtered air" ; float total_organics(time) ; total_organics:long_name = "Mass concentration of total organics, ambient aerosol in air" ; total_organics:units = "ug/m^3" ; total_organics:source = "sgpaosacsmE13.b1:total_organics" ; total_organics:valid_min = 0.f ; total_organics:valid_max = 200.f ; total_organics:missing_value = -9999.f ; total_organics:ancillary_variables = "qc_total_organics" ; int qc_total_organics(time) ; qc_total_organics:long_name = "Quality check results on field: Mass concentration of total organics, ambient aerosol in air" ; qc_total_organics:units = "1" ; qc_total_organics: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_total_organics:flag_method = "bit" ; qc_total_organics:fail_min = 0.3f ; qc_total_organics:fail_max = 200.f ; qc_total_organics:vap_temp_min = 590.f ; qc_total_organics:inlet_pres_min = 1.1f ; qc_total_organics:sem_volt_min = 1500.f ; qc_total_organics:scan_range_max = 150.f ; qc_total_organics:prisma_scan_rate_min = 200.f ; qc_total_organics:ms_filtered_air_max = 1.e-12f ; qc_total_organics:airbeam_norm_min = 0.7f ; qc_total_organics:airbeam_norm_max = 1.3f ; qc_total_organics:bit_1_description = "Value is equal to missing_value" ; qc_total_organics:bit_1_assessment = "Bad" ; qc_total_organics:bit_2_description = "Value is less than valid_min" ; qc_total_organics:bit_2_assessment = "Bad" ; qc_total_organics:bit_3_description = "Value is greater than valid_max" ; qc_total_organics:bit_3_assessment = "Bad" ; qc_total_organics:bit_4_description = "Value is less than fail_min" ; qc_total_organics:bit_4_assessment = "Bad" ; qc_total_organics:bit_5_description = "Value is greater than fail_max" ; qc_total_organics:bit_5_assessment = "Bad" ; qc_total_organics:bit_6_description = "Vaporizer temperature less than vap_temp_min" ; qc_total_organics:bit_6_assessment = "Bad" ; qc_total_organics:bit_7_description = "Inlet pressure (filtered or unfiltered) less than inlet_pres_min" ; qc_total_organics:bit_7_assessment = "Bad" ; qc_total_organics:bit_8_description = "SEM Voltage less than sem_volt_min" ; qc_total_organics:bit_8_assessment = "Bad" ; qc_total_organics:bit_9_description = "Emission current setting equal to 0" ; qc_total_organics:bit_9_assessment = "Bad" ; qc_total_organics:bit_10_description = "Scan upper range greater than scan_range_max" ; qc_total_organics:bit_10_assessment = "Bad" ; qc_total_organics:bit_11_description = "Prisma scan rate less than prsima_scan_rate_min" ; qc_total_organics:bit_11_assessment = "Bad" ; qc_total_organics:bit_12_description = "MS_filtered_air at 140 amu greater than ms_filtered_air_max" ; qc_total_organics:bit_12_assessment = "Bad" ; qc_total_organics:bit_13_description = "Error field values not equal to 0" ; qc_total_organics:bit_13_assessment = "Indeterminate" ; qc_total_organics:bit_14_description = "Airbeam normalization factor less than airbeam_norm_min" ; qc_total_organics:bit_14_assessment = "Bad" ; qc_total_organics:bit_15_description = "Airbeam normalization factor greater than airbeam_norm_max" ; qc_total_organics:bit_15_assessment = "Bad" ; qc_total_organics:source = "" ; float ammonium(time) ; ammonium:long_name = "Mass concentration of ammonium, ambient aerosol in air" ; ammonium:units = "ug/m^3" ; ammonium:source = "sgpaosacsmE13.b1:ammonium" ; ammonium:valid_min = 0.f ; ammonium:valid_max = 40.f ; ammonium:missing_value = -9999.f ; ammonium:ancillary_variables = "qc_ammonium" ; int qc_ammonium(time) ; qc_ammonium:long_name = "Quality check results on field: Mass concentration of ammonium, ambient aerosol in air" ; qc_ammonium:units = "1" ; qc_ammonium: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_ammonium:flag_method = "bit" ; qc_ammonium:fail_min = 0.5f ; qc_ammonium:fail_max = 40.f ; qc_ammonium:vap_temp_min = 590.f ; qc_ammonium:inlet_pres_min = 1.1f ; qc_ammonium:sem_volt_min = 1500.f ; qc_ammonium:scan_range_max = 150.f ; qc_ammonium:prisma_scan_rate_min = 200.f ; qc_ammonium:ms_filtered_air_max = 1.e-12f ; qc_ammonium:airbeam_norm_min = 0.7f ; qc_ammonium:airbeam_norm_max = 1.3f ; qc_ammonium:bit_1_description = "Value is equal to missing_value" ; qc_ammonium:bit_1_assessment = "Bad" ; qc_ammonium:bit_2_description = "Value is less than valid_min" ; qc_ammonium:bit_2_assessment = "Bad" ; qc_ammonium:bit_3_description = "Value is greater than valid_max" ; qc_ammonium:bit_3_assessment = "Bad" ; qc_ammonium:bit_4_description = "Value is less than fail_min" ; qc_ammonium:bit_4_assessment = "Bad" ; qc_ammonium:bit_5_description = "Value is greater than fail_max" ; qc_ammonium:bit_5_assessment = "Bad" ; qc_ammonium:bit_6_description = "Vaporizer temperature less than vap_temp_min" ; qc_ammonium:bit_6_assessment = "Bad" ; qc_ammonium:bit_7_description = "Inlet pressure (filtered or unfiltered) less than inlet_pres_min" ; qc_ammonium:bit_7_assessment = "Bad" ; qc_ammonium:bit_8_description = "SEM Voltage less than sem_volt_min" ; qc_ammonium:bit_8_assessment = "Bad" ; qc_ammonium:bit_9_description = "Emission current setting equal to 0" ; qc_ammonium:bit_9_assessment = "Bad" ; qc_ammonium:bit_10_description = "Scan upper range greater than scan_range_max" ; qc_ammonium:bit_10_assessment = "Bad" ; qc_ammonium:bit_11_description = "Prisma scan rate less than prsima_scan_rate_min" ; qc_ammonium:bit_11_assessment = "Bad" ; qc_ammonium:bit_12_description = "MS_filtered_air at 140 amu greater than ms_filtered_air_max" ; qc_ammonium:bit_12_assessment = "Bad" ; qc_ammonium:bit_13_description = "Error field values not equal to 0" ; qc_ammonium:bit_13_assessment = "Indeterminate" ; qc_ammonium:bit_14_description = "Airbeam normalization factor less than airbeam_norm_min" ; qc_ammonium:bit_14_assessment = "Bad" ; qc_ammonium:bit_15_description = "Airbeam normalization factor greater than airbeam_norm_max" ; qc_ammonium:bit_15_assessment = "Bad" ; qc_ammonium:source = "" ; float ammonium_predicted(time) ; ammonium_predicted:long_name = "Mass concentration of ammonium predicted for neutralization." ; ammonium_predicted:units = "ug/m^3" ; ammonium_predicted:source = "sgpaosacsmE13.b1:ammonium_predicted" ; ammonium_predicted:valid_min = 0.5f ; ammonium_predicted:valid_max = 20.f ; ammonium_predicted:comment = "Amount of ammonium that would balance the observed nitrate, sulfate, and chloride ions based on stochiometric weighting" ; ammonium_predicted:computation = "NH4_predicted = 18*(NO3/62 + 2*SO4/96 + Cl/35.5)" ; ammonium_predicted:interpretation = "In general predicted ammonium should be >= measured ammonium. Poor correlation between measured and predicted (with meausured < predicted) implies non-neutralized aerosol, not uncommon with high sulfate. Good correlation but slope different from one might suggest calibration problems." ; ammonium_predicted:missing_value = -9999.f ; float sulfate(time) ; sulfate:long_name = "Mass concentration of sulfate, ambient aerosol in air" ; sulfate:units = "ug/m^3" ; sulfate:source = "sgpaosacsmE13.b1:sulfate" ; sulfate:valid_min = 0.f ; sulfate:valid_max = 50.f ; sulfate:missing_value = -9999.f ; sulfate:ancillary_variables = "qc_sulfate" ; sulfate:standard_name = "mass_concentration_of_sulfate_ambient_aerosol_particles_in_air" ; int qc_sulfate(time) ; qc_sulfate:long_name = "Quality check results on field: Mass concentration of sulfate, ambient aerosol in air" ; qc_sulfate:units = "1" ; qc_sulfate: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_sulfate:flag_method = "bit" ; qc_sulfate:fail_min = 0.04f ; qc_sulfate:fail_max = 50.f ; qc_sulfate:vap_temp_min = 590.f ; qc_sulfate:inlet_pres_min = 1.1f ; qc_sulfate:sem_volt_min = 1500.f ; qc_sulfate:scan_range_max = 150.f ; qc_sulfate:prisma_scan_rate_min = 200.f ; qc_sulfate:ms_filtered_air_max = 1.e-12f ; qc_sulfate:airbeam_norm_min = 0.7f ; qc_sulfate:airbeam_norm_max = 1.3f ; qc_sulfate:bit_1_description = "Value is equal to missing_value" ; qc_sulfate:bit_1_assessment = "Bad" ; qc_sulfate:bit_2_description = "Value is less than valid_min" ; qc_sulfate:bit_2_assessment = "Bad" ; qc_sulfate:bit_3_description = "Value is greater than valid_max" ; qc_sulfate:bit_3_assessment = "Bad" ; qc_sulfate:bit_4_description = "Value is less than fail_min" ; qc_sulfate:bit_4_assessment = "Bad" ; qc_sulfate:bit_5_description = "Value is greater than fail_max" ; qc_sulfate:bit_5_assessment = "Bad" ; qc_sulfate:bit_6_description = "Vaporizer temperature less than vap_temp_min" ; qc_sulfate:bit_6_assessment = "Bad" ; qc_sulfate:bit_7_description = "Inlet pressure (filtered or unfiltered) less than inlet_pres_min" ; qc_sulfate:bit_7_assessment = "Bad" ; qc_sulfate:bit_8_description = "SEM Voltage less than sem_volt_min" ; qc_sulfate:bit_8_assessment = "Bad" ; qc_sulfate:bit_9_description = "Emission current setting equal to 0" ; qc_sulfate:bit_9_assessment = "Bad" ; qc_sulfate:bit_10_description = "Scan upper range greater than scan_range_max" ; qc_sulfate:bit_10_assessment = "Bad" ; qc_sulfate:bit_11_description = "Prisma scan rate less than prsima_scan_rate_min" ; qc_sulfate:bit_11_assessment = "Bad" ; qc_sulfate:bit_12_description = "MS_filtered_air at 140 amu greater than ms_filtered_air_max" ; qc_sulfate:bit_12_assessment = "Bad" ; qc_sulfate:bit_13_description = "Error field values not equal to 0" ; qc_sulfate:bit_13_assessment = "Indeterminate" ; qc_sulfate:bit_14_description = "Airbeam normalization factor less than airbeam_norm_min" ; qc_sulfate:bit_14_assessment = "Bad" ; qc_sulfate:bit_15_description = "Airbeam normalization factor greater than airbeam_norm_max" ; qc_sulfate:bit_15_assessment = "Bad" ; qc_sulfate:source = "" ; float nitrate(time) ; nitrate:long_name = "Mass concentration of nitrate, ambient aerosol in air" ; nitrate:units = "ug/m^3" ; nitrate:source = "sgpaosacsmE13.b1:nitrate" ; nitrate:valid_min = 0.f ; nitrate:valid_max = 50.f ; nitrate:missing_value = -9999.f ; nitrate:ancillary_variables = "qc_nitrate" ; int qc_nitrate(time) ; qc_nitrate:long_name = "Quality check results on field: Mass concentration of nitrate, ambient aerosol in air" ; qc_nitrate:units = "1" ; qc_nitrate: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_nitrate:flag_method = "bit" ; qc_nitrate:fail_min = 0.02f ; qc_nitrate:fail_max = 50.f ; qc_nitrate:vap_temp_min = 590.f ; qc_nitrate:inlet_pres_min = 1.1f ; qc_nitrate:sem_volt_min = 1500.f ; qc_nitrate:scan_range_max = 150.f ; qc_nitrate:prisma_scan_rate_min = 200.f ; qc_nitrate:ms_filtered_air_max = 1.e-12f ; qc_nitrate:airbeam_norm_min = 0.7f ; qc_nitrate:airbeam_norm_max = 1.3f ; qc_nitrate:bit_1_description = "Value is equal to missing_value" ; qc_nitrate:bit_1_assessment = "Bad" ; qc_nitrate:bit_2_description = "Value is less than valid_min" ; qc_nitrate:bit_2_assessment = "Bad" ; qc_nitrate:bit_3_description = "Value is greater than valid_max" ; qc_nitrate:bit_3_assessment = "Bad" ; qc_nitrate:bit_4_description = "Value is less than fail_min" ; qc_nitrate:bit_4_assessment = "Bad" ; qc_nitrate:bit_5_description = "Value is greater than fail_max" ; qc_nitrate:bit_5_assessment = "Bad" ; qc_nitrate:bit_6_description = "Vaporizer temperature less than vap_temp_min" ; qc_nitrate:bit_6_assessment = "Bad" ; qc_nitrate:bit_7_description = "Inlet pressure (filtered or unfiltered) less than inlet_pres_min" ; qc_nitrate:bit_7_assessment = "Bad" ; qc_nitrate:bit_8_description = "SEM Voltage less than sem_volt_min" ; qc_nitrate:bit_8_assessment = "Bad" ; qc_nitrate:bit_9_description = "Emission current setting equal to 0" ; qc_nitrate:bit_9_assessment = "Bad" ; qc_nitrate:bit_10_description = "Scan upper range greater than scan_range_max" ; qc_nitrate:bit_10_assessment = "Bad" ; qc_nitrate:bit_11_description = "Prisma scan rate less than prsima_scan_rate_min" ; qc_nitrate:bit_11_assessment = "Bad" ; qc_nitrate:bit_12_description = "MS_filtered_air at 140 amu greater than ms_filtered_air_max" ; qc_nitrate:bit_12_assessment = "Bad" ; qc_nitrate:bit_13_description = "Error field values not equal to 0" ; qc_nitrate:bit_13_assessment = "Indeterminate" ; qc_nitrate:bit_14_description = "Airbeam normalization factor less than airbeam_norm_min" ; qc_nitrate:bit_14_assessment = "Bad" ; qc_nitrate:bit_15_description = "Airbeam normalization factor greater than airbeam_norm_max" ; qc_nitrate:bit_15_assessment = "Bad" ; qc_nitrate:source = "" ; float chloride(time) ; chloride:long_name = "Mass concentration of chloride, ambient aerosol in air" ; chloride:units = "ug/m^3" ; chloride:source = "sgpaosacsmE13.b1:chloride" ; chloride:valid_min = 0.f ; chloride:valid_max = 50.f ; chloride:missing_value = -9999.f ; chloride:ancillary_variables = "qc_chloride" ; int qc_chloride(time) ; qc_chloride:long_name = "Quality check results on field: Mass concentration of chloride, ambient aerosol in air" ; qc_chloride:units = "1" ; qc_chloride: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_chloride:flag_method = "bit" ; qc_chloride:fail_min = 0.02f ; qc_chloride:fail_max = 50.f ; qc_chloride:vap_temp_min = 590.f ; qc_chloride:inlet_pres_min = 1.1f ; qc_chloride:sem_volt_min = 1500.f ; qc_chloride:scan_range_max = 150.f ; qc_chloride:prisma_scan_rate_min = 200.f ; qc_chloride:ms_filtered_air_max = 1.e-12f ; qc_chloride:airbeam_norm_min = 0.7f ; qc_chloride:airbeam_norm_max = 1.3f ; qc_chloride:bit_1_description = "Value is equal to missing_value" ; qc_chloride:bit_1_assessment = "Bad" ; qc_chloride:bit_2_description = "Value is less than valid_min" ; qc_chloride:bit_2_assessment = "Bad" ; qc_chloride:bit_3_description = "Value is greater than valid_max" ; qc_chloride:bit_3_assessment = "Bad" ; qc_chloride:bit_4_description = "Value is less than fail_min" ; qc_chloride:bit_4_assessment = "Bad" ; qc_chloride:bit_5_description = "Value is greater than fail_max" ; qc_chloride:bit_5_assessment = "Bad" ; qc_chloride:bit_6_description = "Vaporizer temperature less than vap_temp_min" ; qc_chloride:bit_6_assessment = "Bad" ; qc_chloride:bit_7_description = "Inlet pressure (filtered or unfiltered) less than inlet_pres_min" ; qc_chloride:bit_7_assessment = "Bad" ; qc_chloride:bit_8_description = "SEM Voltage less than sem_volt_min" ; qc_chloride:bit_8_assessment = "Bad" ; qc_chloride:bit_9_description = "Emission current setting equal to 0" ; qc_chloride:bit_9_assessment = "Bad" ; qc_chloride:bit_10_description = "Scan upper range greater than scan_range_max" ; qc_chloride:bit_10_assessment = "Bad" ; qc_chloride:bit_11_description = "Prisma scan rate less than prsima_scan_rate_min" ; qc_chloride:bit_11_assessment = "Bad" ; qc_chloride:bit_12_description = "MS_filtered_air at 140 amu greater than ms_filtered_air_max" ; qc_chloride:bit_12_assessment = "Bad" ; qc_chloride:bit_13_description = "Error field values not equal to 0" ; qc_chloride:bit_13_assessment = "Indeterminate" ; qc_chloride:bit_14_description = "Airbeam normalization factor less than airbeam_norm_min" ; qc_chloride:bit_14_assessment = "Bad" ; qc_chloride:bit_15_description = "Airbeam normalization factor greater than airbeam_norm_max" ; qc_chloride:bit_15_assessment = "Bad" ; qc_chloride:source = "" ; float acsm_vol_conc(time) ; acsm_vol_conc:long_name = "ACSM volume concentration" ; acsm_vol_conc:units = "cm^3/m^3" ; acsm_vol_conc:source = "sgpaosacsmE13.b1:acsm_vol_conc" ; acsm_vol_conc:missing_value = -9999.f ; acsm_vol_conc:ancillary_variables = "qc_acsm_vol_conc" ; int qc_acsm_vol_conc(time) ; qc_acsm_vol_conc:long_name = "Quality check results on field: ACSM volume concentration" ; qc_acsm_vol_conc:units = "1" ; qc_acsm_vol_conc: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_acsm_vol_conc:flag_method = "bit" ; qc_acsm_vol_conc:bit_1_description = "Value is equal to missing_value" ; qc_acsm_vol_conc:bit_1_assessment = "Bad" ; qc_acsm_vol_conc:bit_2_description = "acsm_vol_conc failed quality check" ; qc_acsm_vol_conc:bit_2_assessment = "Bad" ; float CDCE(time) ; CDCE:long_name = "Composition dependent collection efficiency" ; CDCE:units = "1" ; CDCE:ancillary_variables = " qc_CDCE" ; int qc_CDCE(time) ; qc_CDCE:long_name = "Quality check results on field: Composition dependent collection efficiency" ; qc_CDCE:units = "1" ; qc_CDCE: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. 1 = negative ratio of measured NH4 to NH4 needed for full neutralization; 2 = negative values of the ammonium nitrate mass fraction ; 3 = ammonium nitrate mass fraction greater than unity; 4 = predicted NH4 is below the instrument LOD." ; qc_CDCE:flag_method = "bit" ; qc_CDCE:bit_1_description = "measured NH4 to NH4 needed for full neutralization < 0" ; qc_CDCE:bit_1_assessment = "Indeterminate" ; qc_CDCE:bit_2_description = "ammonium nitrate mass fraction < 0" ; qc_CDCE:bit_2_assessment = "Indeterminate" ; qc_CDCE:bit_3_description = "ammonium nitrate mass fraction > 1" ; qc_CDCE:bit_3_assessment = "Indeterminate" ; qc_CDCE:bit_4_description = "predicted ammonium below instrument limit of detection" ; qc_CDCE:bit_4_assessment = "Indeterminate" ; float CDCE_equation(time) ; CDCE_equation:long_name = "Equation used to calculate the composition dependent collection efficiency following Middlebrook et al" ; CDCE_equation:units = "1" ; float total_organics_CDCE(time) ; total_organics_CDCE:long_name = "Mass concentration of total organics corrected for the CDCE, ambient aerosol in air" ; total_organics_CDCE:units = "ug/m^3" ; total_organics_CDCE:ancillary_variables = " qc_total_organics_CDCE" ; int qc_total_organics_CDCE(time) ; qc_total_organics_CDCE:long_name = "Quality check results on field: Mass concentration of total organics corrected for the CDCE, ambient aerosol in air" ; qc_total_organics_CDCE:units = "1" ; qc_total_organics_CDCE: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_total_organics_CDCE:flag_method = "bit" ; qc_total_organics_CDCE:bit_1_description = "qc_CDCE has Bad assessment" ; qc_total_organics_CDCE:bit_1_assessment = "Bad" ; qc_total_organics_CDCE:bit_2_description = "qc_CDCE has Indeterminate assessment" ; qc_total_organics_CDCE:bit_2_assessment = "Indeterminate" ; qc_total_organics_CDCE:bit_3_description = "qc_total_organics has Bad assessment" ; qc_total_organics_CDCE:bit_3_assessment = "Bad" ; qc_total_organics_CDCE:bit_4_description = "qc_total_organics has Indeterminate assessment" ; qc_total_organics_CDCE:bit_4_assessment = "Indeterminate" ; float ammonium_CDCE(time) ; ammonium_CDCE:long_name = "Mass concentration of ammonium corrected for the CDCE, ambient aerosol in air" ; ammonium_CDCE:units = "ug/m^3" ; ammonium_CDCE:ancillary_variables = "qc_ammonium_CDCE" ; int qc_ammonium_CDCE(time) ; qc_ammonium_CDCE:long_name = "Quality check results on field: Mass concentration of ammonium corrected for the CDCE, ambient aerosol in air" ; qc_ammonium_CDCE:units = "1" ; qc_ammonium_CDCE: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_ammonium_CDCE:flag_method = "bit" ; qc_ammonium_CDCE:bit_1_description = "qc_CDCE has Bad assessment" ; qc_ammonium_CDCE:bit_1_assessment = "Bad" ; qc_ammonium_CDCE:bit_2_description = "qc_CDCE has Indeterminate assessment" ; qc_ammonium_CDCE:bit_2_assessment = "Indeterminate" ; qc_ammonium_CDCE:bit_3_description = "qc_ammonium has Bad assessment" ; qc_ammonium_CDCE:bit_3_assessment = "Bad" ; qc_ammonium_CDCE:bit_4_description = "qc_ammonium has Indeterminate assessment" ; qc_ammonium_CDCE:bit_4_assessment = "Indeterminate" ; float sulfate_CDCE(time) ; sulfate_CDCE:long_name = "Mass concentration of sulfate corrected for the CDCE, ambient aerosol in air" ; sulfate_CDCE:units = "ug/m^3" ; sulfate_CDCE:ancillary_variables = "qc_sulfate_CDCE" ; sulfate_CDCE:standard_name = "mass_concentration_of_sulfate_ambient_aerosol_particles_in_air" ; int qc_sulfate_CDCE(time) ; qc_sulfate_CDCE:long_name = "Quality check results on field: Mass concentration of sulfate corrected for the CDCE, ambient aerosol in air" ; qc_sulfate_CDCE:units = "1" ; qc_sulfate_CDCE: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_sulfate_CDCE:flag_method = "bit" ; qc_sulfate_CDCE:bit_1_description = "qc_CDCE has Bad assessment" ; qc_sulfate_CDCE:bit_1_assessment = "Bad" ; qc_sulfate_CDCE:bit_2_description = "qc_CDCE has Indeterminate assessment" ; qc_sulfate_CDCE:bit_2_assessment = "Indeterminate" ; qc_sulfate_CDCE:bit_3_description = "qc_sulfate has Bad assessment" ; qc_sulfate_CDCE:bit_3_assessment = "Bad" ; qc_sulfate_CDCE:bit_4_description = "qc_sulfate has Indeterminate assessment" ; qc_sulfate_CDCE:bit_4_assessment = "Indeterminate" ; float nitrate_CDCE(time) ; nitrate_CDCE:long_name = "Mass concentration of nitrate corrected for the CDCE, ambient aerosol in air" ; nitrate_CDCE:units = "ug/m^3" ; nitrate_CDCE:ancillary_variables = "qc_nitrate_CDCE" ; int qc_nitrate_CDCE(time) ; qc_nitrate_CDCE:long_name = "Quality check results on field: Mass concentration of nitrate corrected for the CDCE, ambient aerosol in air" ; qc_nitrate_CDCE:units = "1" ; qc_nitrate_CDCE: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_nitrate_CDCE:flag_method = "bit" ; qc_nitrate_CDCE:bit_1_description = "qc_CDCE has Bad assessment" ; qc_nitrate_CDCE:bit_1_assessment = "Bad" ; qc_nitrate_CDCE:bit_2_description = "qc_CDCE has Indeterminate assessment" ; qc_nitrate_CDCE:bit_2_assessment = "Indeterminate" ; qc_nitrate_CDCE:bit_3_description = "qc_nitrate has Bad assessment" ; qc_nitrate_CDCE:bit_3_assessment = "Bad" ; qc_nitrate_CDCE:bit_4_description = "qc_nitrate has Indeterminate assessment" ; qc_nitrate_CDCE:bit_4_assessment = "Indeterminate" ; float chloride_CDCE(time) ; chloride_CDCE:long_name = "Mass concentration of chloride corrected for the CDCE, ambient aerosol in air" ; chloride_CDCE:units = "ug/m^3" ; chloride_CDCE:ancillary_variables = "qc_chloride_CDCE" ; int qc_chloride_CDCE(time) ; qc_chloride_CDCE:long_name = "Quality check results on field: Mass concentration of chloride corrected for the CDCE, ambient aerosol in air" ; qc_chloride_CDCE:units = "1" ; qc_chloride_CDCE: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_chloride_CDCE:flag_method = "bit" ; qc_chloride_CDCE:bit_1_description = "qc_CDCE has Bad assessment" ; qc_chloride_CDCE:bit_1_assessment = "Bad" ; qc_chloride_CDCE:bit_2_description = "qc_CDCE has Indeterminate assessment" ; qc_chloride_CDCE:bit_2_assessment = "Indeterminate" ; qc_chloride_CDCE:bit_3_description = "qc_chloride has Bad assessment" ; qc_chloride_CDCE:bit_3_assessment = "Bad" ; qc_chloride_CDCE:bit_4_description = "qc_chloride has Indeterminate assessment" ; qc_chloride_CDCE:bit_4_assessment = "Indeterminate" ; float acsm_vol_conc_CDCE(time) ; acsm_vol_conc_CDCE:long_name = "ACSM volume concentration corrected for the CDCE, ambient aerosol in air" ; acsm_vol_conc_CDCE:units = "cm^3/m^3" ; acsm_vol_conc_CDCE:ancillary_variables = "qc_acsm_vol_conc_CDCE" ; int qc_acsm_vol_conc_CDCE(time) ; qc_acsm_vol_conc_CDCE:long_name = "Quality check results on field: ACSM volume concentration corrected for the CDCE, ambient aerosol in air" ; qc_acsm_vol_conc_CDCE:units = "1" ; qc_acsm_vol_conc_CDCE: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_acsm_vol_conc_CDCE:flag_method = "bit" ; qc_acsm_vol_conc_CDCE:bit_1_description = "qc_CDCE has Bad assessment" ; qc_acsm_vol_conc_CDCE:bit_1_assessment = "Bad" ; qc_acsm_vol_conc_CDCE:bit_2_description = "qc_CDCE has Indeterminate assessment" ; qc_acsm_vol_conc_CDCE:bit_2_assessment = "Indeterminate" ; qc_acsm_vol_conc_CDCE:bit_3_description = "qc_acsm_vol_conc has Bad assessment" ; qc_acsm_vol_conc_CDCE:bit_3_assessment = "Bad" ; qc_acsm_vol_conc_CDCE:bit_4_description = "qc_acsm_vol_conc has Indeterminate assessment" ; qc_acsm_vol_conc_CDCE:bit_4_assessment = "Indeterminate" ; 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 = "aosacsmcdce -s sgp -f E13 -b 20190930 -e 20200707 -D 2 -R" ; :Conventions = "ARM-1.2" ; :process_version = "vap-aosacsmcdce-0.0-0.dev0.dirty.el7" ; :dod_version = "aosacsmcdce-c1-1.0" ; :site_id = "sgp" ; :platform_id = "aosacsmcdce" ; :facility_id = "E13" ; :data_level = "c1" ; :location_description = "Southern Great Plains (SGP), Lamont, Oklahoma" ; :datastream = "sgpaosacsmcdceE13.c1" ; :sampling_interval = "1 second" ; :averaging_interval = "30 minutes" ; :averaging_interval_comment = "The average at time t refers to data collected during the previous averaging interval." ; :input_datastreams = "sgpaosacsmE13.b1 : 1.0 : 20200705.002220-20200706.002128" ; :ACSM = "Aerosol Chemical Speciation Monitor" ; :serial_number = "See variable instrument_serial_number" ; :doi = "10.5439/1641833" ; :history = "created by user levin on machine emerald.dmf.arm.gov at 2020-08-19 17:47:51, using vap-aosacsmcdce-0.0-0.dev0.dirty.el7" ; }