netcdf sgpoacomp1zhangC1.c1.20120324.002953 { dimensions: time = UNLIMITED ; // (45 currently) amus = 121 ; variables: int base_time ; base_time:string = "2012-03-24 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" ; double time_offset(time) ; time_offset:long_name = "Time offset from base_time" ; time_offset:units = "seconds since 2012-03-24 00:00:00 0:00" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2012-03-24 00:00:00 0:00" ; int amus(amus) ; amus:long_name = "Mass to charge ratios of ion fragments" ; amus:units = "amus" ; float time_series_MOOOA(time) ; time_series_MOOOA:long_name = "time series for more oxidized oxygenated organic aerosol component" ; time_series_MOOOA:units = "ug/m3" ; time_series_MOOOA:valid_min = 0.f ; time_series_MOOOA:valid_max = 300.f ; time_series_MOOOA:missing_value = -9999.f ; int qc_time_series_MOOOA(time) ; qc_time_series_MOOOA:long_name = "QC field for time_series_MOOOA" ; qc_time_series_MOOOA:units = "unitless" ; qc_time_series_MOOOA:comment = "No bits set (qc_value=zero) represents good data; non-zero bits represent the QC condition given in the global descriptions for those bits." ; qc_time_series_MOOOA:qc_bit_description = "See global attributes for QC bit descriptions and assessments" ; float mass_spectrum_MOOOA(amus) ; mass_spectrum_MOOOA:long_name = "mass spectra for more oxidized oxygenated organic aerosol component" ; mass_spectrum_MOOOA:units = "unitless" ; mass_spectrum_MOOOA:valid_min = 0.f ; mass_spectrum_MOOOA:valid_max = 0.5f ; mass_spectrum_MOOOA:missing_value = -9999.f ; int qc_mass_spectrum_MOOOA(amus) ; qc_mass_spectrum_MOOOA:long_name = "QC field for mass_spectrum_MOOOA" ; qc_mass_spectrum_MOOOA:units = "unitless" ; qc_mass_spectrum_MOOOA:comment = "No bits set (qc_value=zero) represents good data; non-zero bits represent the QC condition given in the global descriptions for those bits." ; qc_mass_spectrum_MOOOA:qc_bit_description = "See global attributes for QC bit descriptions and assessments" ; float time_series_LOOOA(time) ; time_series_LOOOA:long_name = "time series for less oxidized oxygenated organic aerosol component" ; time_series_LOOOA:units = "ug/m3" ; time_series_LOOOA:valid_min = 0.f ; time_series_LOOOA:valid_max = 300.f ; time_series_LOOOA:missing_value = -9999.f ; int qc_time_series_LOOOA(time) ; qc_time_series_LOOOA:long_name = "QC field for time_series_LOOOA" ; qc_time_series_LOOOA:units = "unitless" ; qc_time_series_LOOOA:comment = "No bits set (qc_value=zero) represents good data; non-zero bits represent the QC condition given in the global descriptions for those bits." ; qc_time_series_LOOOA:qc_bit_description = "See global attributes for QC bit descriptions and assessments" ; float mass_spectrum_LOOOA(amus) ; mass_spectrum_LOOOA:long_name = "mass spectra for less oxidized oxygenated organic aerosol component" ; mass_spectrum_LOOOA:units = "unitless" ; mass_spectrum_LOOOA:valid_min = 0.f ; mass_spectrum_LOOOA:valid_max = 0.5f ; mass_spectrum_LOOOA:missing_value = -9999.f ; int qc_mass_spectrum_LOOOA(amus) ; qc_mass_spectrum_LOOOA:long_name = "QC field for mass_spectrum_LOOOA" ; qc_mass_spectrum_LOOOA:units = "unitless" ; qc_mass_spectrum_LOOOA:comment = "No bits set (qc_value=zero) represents good data; non-zero bits represent the QC condition given in the global descriptions for those bits." ; qc_mass_spectrum_LOOOA:qc_bit_description = "See global attributes for QC bit descriptions and assessments" ; float time_series_BBOA(time) ; time_series_BBOA:long_name = "time series for biomass burning organic aerosol component" ; time_series_BBOA:units = "ug/m3" ; time_series_BBOA:valid_min = 0.f ; time_series_BBOA:valid_max = 300.f ; time_series_BBOA:missing_value = -9999.f ; time_series_BBOA:comment = "Values set to zero if no biomass burning factor was derived" ; int qc_time_series_BBOA(time) ; qc_time_series_BBOA:long_name = "QC field for time_series_BBOA" ; qc_time_series_BBOA:units = "unitless" ; qc_time_series_BBOA:comment = "No bits set (qc_value=zero) represents good data; non-zero bits represent the QC condition given in the global descriptions for those bits." ; qc_time_series_BBOA:qc_bit_description = "See global attributes for QC bit descriptions and assessments" ; float mass_spectrum_BBOA(amus) ; mass_spectrum_BBOA:long_name = "mass spectra for biomass organic aerosol component, unnormalized" ; mass_spectrum_BBOA:units = "unitless" ; mass_spectrum_BBOA:valid_min = 0.f ; mass_spectrum_BBOA:valid_max = 0.5f ; mass_spectrum_BBOA:missing_value = -9999.f ; mass_spectrum_BBOA:comment = "Values set to zero if no biomass burning factor was derived" ; int qc_mass_spectrum_BBOA(amus) ; qc_mass_spectrum_BBOA:long_name = "QC field for mass_spectrum_BBOA" ; qc_mass_spectrum_BBOA:units = "unitless" ; qc_mass_spectrum_BBOA:comment = "No bits set (qc_value=zero) represents good data; non-zero bits represent the QC condition given in the global descriptions for those bits." ; qc_mass_spectrum_BBOA:qc_bit_description = "See global attributes for QC bit descriptions and assessments" ; float time_series_MOOOA_std(time) ; time_series_MOOOA_std:long_name = "standard deviation of time series for more oxidized oxygenated organic aerosol component" ; time_series_MOOOA_std:units = "ug/m3" ; time_series_MOOOA_std:valid_min = 0.f ; time_series_MOOOA_std:valid_max = 300.f ; time_series_MOOOA_std:missing_value = -9999.f ; float mass_spectrum_MOOOA_std(amus) ; mass_spectrum_MOOOA_std:long_name = "standard deviation of mass spectra for more oxidized oxygenated organic aerosol component" ; mass_spectrum_MOOOA_std:units = "unitless" ; mass_spectrum_MOOOA_std:valid_min = 0.f ; mass_spectrum_MOOOA_std:valid_max = 10.f ; mass_spectrum_MOOOA_std:missing_value = -9999.f ; float time_series_LOOOA_std(time) ; time_series_LOOOA_std:long_name = "standard deviation of time series for less oxidized oxygenated organic aerosol component" ; time_series_LOOOA_std:units = "ug/m3" ; time_series_LOOOA_std:valid_min = 0.f ; time_series_LOOOA_std:valid_max = 300.f ; time_series_LOOOA_std:missing_value = -9999.f ; float mass_spectrum_LOOOA_std(amus) ; mass_spectrum_LOOOA_std:long_name = "standard deviation of mass spectra for less oxidized oxygenated organic aerosol component" ; mass_spectrum_LOOOA_std:units = "unitless" ; mass_spectrum_LOOOA_std:valid_min = 0.f ; mass_spectrum_LOOOA_std:valid_max = 10.f ; mass_spectrum_LOOOA_std:missing_value = -9999.f ; float time_series_BBOA_std(time) ; time_series_BBOA_std:long_name = "standard deviation of time series for biomass burning organic aerosol component" ; time_series_BBOA_std:units = "ug/m3" ; time_series_BBOA_std:valid_min = 0.f ; time_series_BBOA_std:valid_max = 300.f ; time_series_BBOA_std:comment = "Values set to zero if no biomass burning factor was derived" ; time_series_BBOA_std:missing_value = -9999.f ; float mass_spectrum_BBOA_std(amus) ; mass_spectrum_BBOA_std:long_name = "standard deviation of mass spectra for biomass organic aerosol component, unnormalized" ; mass_spectrum_BBOA_std:units = "unitless" ; mass_spectrum_BBOA_std:valid_min = 0.f ; mass_spectrum_BBOA_std:valid_max = 10.f ; mass_spectrum_BBOA_std:missing_value = -9999.f ; mass_spectrum_BBOA_std:comment = "Values set to zero if no biomass burning factor was derived" ; float total_organics(time) ; total_organics:long_name = "Mass concentration of total organics, ambient aerosol in air" ; total_organics:units = "ug/m3" ; total_organics:valid_min = 0.f ; total_organics:valid_max = 100.f ; total_organics:missing_value = -9999.f ; float ammonium(time) ; ammonium:long_name = "Mass concentration of ammonium, ambient aerosol in air" ; ammonium:units = "ug/m3" ; ammonium:valid_min = 0.f ; ammonium:valid_max = 20.f ; ammonium:missing_value = -9999.f ; float sulfate(time) ; sulfate:long_name = "Mass concentration of sulfate, ambient aerosol in air" ; sulfate:units = "ug/m3" ; sulfate:valid_min = 0.f ; sulfate:valid_max = 50.f ; sulfate:missing_value = -9999.f ; float nitrate(time) ; nitrate:long_name = "Mass concentration of nitrate, ambient aerosol in air" ; nitrate:units = "ug/m3" ; nitrate:valid_min = 0.f ; nitrate:valid_max = 50.f ; nitrate:missing_value = -9999.f ; float chloride(time) ; chloride:long_name = "Mass concentration of chloride, ambient aerosol in air" ; chloride:units = "ug/m3" ; chloride:valid_min = 0.f ; chloride:valid_max = 1.f ; chloride: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 ; float lon ; lon:long_name = "East longitude" ; lon:units = "degree_E" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; float alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; // global attributes: :command_line = "oacomp_vap -D -R -s sgp -f C1 -d 20120324" ; :process_version = "$" ; :dod_version = "oacomp1zhang-c1-0.9" ; :site_id = "sgp" ; :facility_id = "C1: Lamont, Oklahoma" ; :data_level = "c1" ; :qc_standards_version = "1.0" ; :title = "Organic Aerosol Component Factorization data product" ; :qc_bit_1_description = "No valid PMF output for 15 day window; value set to -9999" ; :qc_bit_1_assessment = "Bad" ; :qc_bit_2_description = "Value is less than the valid_min" ; :qc_bit_2_assessment = "Bad" ; :qc_bit_3_description = "Value is greater than the valid_max" ; :qc_bit_3_assessment = "Bad" ; :qc_bit_4_description = "Three or fewer days used in fifteen day rolling PMF window" ; :qc_bit_4_assessment = "Bad" ; :qc_bit_5_description = "Fewer than fifteen days used in fifteen day rolling PMF window" ; :qc_bit_5_assessment = "Indeterminate" ; :qc_bit_6_description = "At least one PMF in rolling window had at least one factor with amu 44 fraction > 0.3" ; :qc_bit_6_assessment = "Indeterminate" ; :qc_bit_6_comment = "PMFs that fail this test are not included in average" ; :qc_bit_7_description = "At least one PMF in rolling window had at least one factor with ratio of amu 43 to amu 44 < 0.01 or > 10" ; :qc_bit_7_assessment = "Indeterminate" ; :qc_bit_7_comment = "PMFs that fail this test are not included in average" ; :qc_bit_8_description = "Failed tolerance check with ACSM total_organics field" ; :qc_bit_8_assessment = "Indeterminate" ; :qc_bit_8_comment = "|ts_factor_sum/total_organics| > 1.4 or < 0.7 fails this test, if total_organics > 1.0 ug/m3" ; :qc_bit_9_description = "ACSM total_organics field < 1.0 ug/m3" ; :qc_bit_9_assessment = "Indeterminate" ; :qc_bit_10_description = "No biomass burning factor for this window; BBOA fields set to 0.0" ; :qc_bit_10_assessment = "Indeterminate" ; :analysis_interval = "15 days" ; :history = "created by user shippert on machine borax at 2013-06-25 00:33:43, using $" ; :input_datastreams_description = "A string consisting of the datastream(s), datastream version(s), and datastream date (range)." ; :input_datastreams_num = 8 ; :input_datastreams = "sgppmf1zhangC1.c1 : Unknown : 20120317.000000-20120324.000000" ; }