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Dataset Title:  PMEL Atmospheric Chemistry CALNEX irregular data Subscribe RSS
Institution:  PMEL Atmospheric Chemistry   (Dataset ID: dsg_irreg_a058_764f_fb28)
Range: longitude = -122.4263 to -117.8868°E, latitude = 33.3382 to 38.56269°N, time = 2010-05-15T03:12:00Z to 2010-06-06T15:03:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  traj {
    Float64 actual_range 1.0, 1.0;
    String axis "E";
    String long_name "Traj";
    String point_spacing "even";
  }
  id {
    String cf_role "trajectory_id";
    String long_name "trajectory id";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2738931199999998e+9, 1.27583658e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -1.0e+34;
    Float32 actual_range -122.4263, -117.8868;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    Int32 epic_code 502;
    String FORTRAN_format "f10.4";
    String gap_value "-9999";
    String generic_name "lon";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "GPS";
    String ioos_category "Location";
    String long_name "Longitude";
    String max_value "360";
    String min_value "-180";
    Float32 missing_value -1.0e+34;
    String name "LON";
    String standard_name "longitude";
    String units "degrees_east";
  }
  lon360 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 237.5737, 242.1132;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String history "From CALNEX_AERO-AN_v0_copy";
    String long_name "longitude 360";
    Float32 missing_value -1.0e+34;
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 33.3382, 38.56269;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    Int32 epic_code 500;
    String FORTRAN_format "f10.4";
    String gap_value "-9999";
    String generic_name "lat";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "GPS";
    String ioos_category "Location";
    String long_name "Latitude";
    String max_value "90";
    String min_value "-90";
    Float32 missing_value -1.0e+34;
    String name "LAT";
    String standard_name "latitude";
    String units "degrees_north";
  }
  DUR_628 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 131.0, 966.0;
    Int32 epic_code 628;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "*";
    String long_name "Sample Duration";
    String max_value "59";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "DUR";
    String units "min";
  }
  MSA_1956 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.005, 0.482;
    Int32 epic_code 1956;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Methane Sulfonic Acid";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "MSA";
    String units "ug/m^3";
  }
  MSA_1957 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.277;
    Int32 epic_code 1957;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Methane Sulfonic Acid";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "MSA";
    String units "ug/m^3";
  }
  Cl_1944 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.964;
    Int32 epic_code 1944;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Chloride";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Cl";
    String units "ug/m^3";
  }
  Cl_1945 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 14.268;
    Int32 epic_code 1945;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Chloride";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Cl";
    String units "ug/m^3";
  }
  Br_1989 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.415;
    Int32 epic_code 1989;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Bromide";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Br";
    String units "ug/m^3";
  }
  Br_1990 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.04;
    Int32 epic_code 1990;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Bromide";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Br";
    String units "ug/m^3";
  }
  NO3_1947 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.725;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1947;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Nitrate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NO3";
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "ug/m^3";
  }
  NO3_1948 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.001, 6.019;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1948;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Nitrate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NO3";
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "ug/m^3";
  }
  SO4_1950 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.269, 7.24;
    Int32 epic_code 1950;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Sulfate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "SO4";
    String units "ug/m^3";
  }
  SO4_1951 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.025, 2.387;
    Int32 epic_code 1951;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Sulfate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "SO4";
    String units "ug/m^3";
  }
  Oxlate_1986 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.167;
    Int32 epic_code 1986;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Oxalate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Oxlate";
    String units "ug/m^3";
  }
  Oxlate_1987 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.095;
    Int32 epic_code 1987;
    String gap_value "-9999";
    String history "From CALNEX_AERO-AN_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Oxalate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Oxlate";
    String units "ug/m^3";
  }
  Na_1920 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.006, 0.636;
    Int32 epic_code 1920;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Sodium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Na";
    String units "ug/m^3";
  }
  Na_1921 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.013, 7.857;
    Int32 epic_code 1921;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Sodium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Na";
    String units "ug/m^3";
  }
  NH4_1923 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.011, 2.106;
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1923;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Ammonium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NH4";
    String standard_name "mole_concentration_of_ammonium_in_sea_water";
    String units "ug/m^3";
  }
  NH4_1924 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.885;
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1924;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Ammonium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NH4";
    String standard_name "mole_concentration_of_ammonium_in_sea_water";
    String units "ug/m^3";
  }
  K_1926 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.088;
    Int32 epic_code 1926;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Potassium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "K";
    String units "ug/m^3";
  }
  K_1927 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.264;
    Int32 epic_code 1927;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Potassium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "K";
    String units "ug/m^3";
  }
  Mg_1929 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.053;
    Int32 epic_code 1929;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Magnesium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Mg";
    String units "ug/m^3";
  }
  Mg_1930 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.77;
    Int32 epic_code 1930;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Magnesium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Mg";
    String units "ug/m^3";
  }
  Ca_1932 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.156;
    Int32 epic_code 1932;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Submicron Aerosol Calcium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Ca";
    String units "ug/m^3";
  }
  Ca_1933 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 0.277;
    Int32 epic_code 1933;
    String gap_value "-9999";
    String history "From CALNEX_AERO-CAT_v0_copy";
    String instr_id "2-stage impactor -- ion chromatographic analysis";
    String long_name "Soluble Supermicron Aerosol Calcium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "Ca";
    String units "ug/m^3";
  }
  mass_1965 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.95, 15.32;
    Int32 epic_code 1965;
    String gap_value "-999";
    String history "From CALNEX_AERO-GRAV_v0_copy";
    String instr_id "2-stage impactor -- gravimetric analysis";
    String long_name "Submicron Aerosol mass";
    String max_value "250";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "mass";
    String units "ug/m^3";
  }
  mass_1966 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.75, 66.97;
    Int32 epic_code 1966;
    String gap_value "-999";
    String history "From CALNEX_AERO-GRAV_v0_copy";
    String instr_id "2-stage impactor --  gravimetric analysis";
    String long_name "Supermicron Aerosol mass";
    String max_value "250";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "mass";
    String units "ug/m^3";
  }
  OC_1959 {
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Trajectory";
    String cdm_trajectory_variables "traj, id";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creation_date "14:17 22-October-2010";
    String creator_email "pmel.info@noaa.gov";
    String creator_name "PMEL Atmospheric Chemistry";
    String creator_url "https://www.pmel.noaa.gov/";
    String DATA_TYPE "TIMESERIES-1D";
    Float64 Easternmost_Easting -117.8868;
    String featureType "Trajectory";
    String FILE_START_TIME "2010 05 15 03 12";
    String FILE_STOP_TIME "2010 06 06 19 31";
    Float64 geospatial_lat_max 38.56269;
    Float64 geospatial_lat_min 33.3382;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -117.8868;
    Float64 geospatial_lon_min -122.4263;
    String geospatial_lon_units "degrees_east";
    String history 
"FERRET V7.01 (beta/debug) 10-Aug-16
2024-04-23T18:47:30Z (local files)
2024-04-23T18:47:30Z https://data.pmel.noaa.gov/pmel/tabledap/dsg_irreg_a058_764f_fb28.das";
    String infoUrl "http://saga.pmel.noaa.gov/";
    String institution "PMEL Atmospheric Chemistry";
    String keywords "acid, aerosol, ammonia, ammonium, amospheric, atmospheric, Br_1989, Br_1990, bromide, Ca_1932, Ca_1933, calcium, calnex, carbon, chemistry, chloride, Cl_1944, Cl_1945, concentration, data, DUR_628, duration, Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Nitrate, environmental, irregular, K_1926, K_1927, laboratory, latitude, lon360, longitude, magnesium, marine, mass, mass_1965, mass_1966, methane, Mg_1929, Mg_1930, mole, mole_concentration_of_ammonium_in_sea_water, mole_concentration_of_nitrate_in_sea_water, MSA_1956, MSA_1957, n02, Na_1920, Na_1921, nh4, NH4_1923, NH4_1924, nitrate, no3, NO3_1947, NO3_1948, noaa, OC_1959, ocean, oceans, organic, oxalate, Oxlate_1986, Oxlate_1987, pacific, pmel, potassium, sample, sea, seawater, SO4_1950, SO4_1951, sodium, soluble, submicron, sulfate, sulfonic, supermicron, time, traj, trajectory, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"Data Licenses / Data Usage Restrictions
The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.

Unless otherwise noted, data served through this ERDDAP server are 
not quality controlled.  Users may need to do quality control when using 
these data. These data are made available at the users own risk.";
    Float64 Northernmost_Northing 38.56269;
    String PLATFORM "ATLANTIS";
    String PROJECT "CALNEX";
    String REMARK_01 "Data Source Description= Aerosol Chemistry Data, Anions - collected with 2 stage impactors during CalNex 2010";
    String REMARK_02 "Time Description= irregular time interval";
    String REMARK_03 "Other=";
    String REMARK_04 "Below Detection Level Indicator = 0";
    String REMARK_05 "Version 0= Initial version, no comments";
    String REMARK_06 "Aerosol Ion Chemistry Data";
    String REMARK_07 "Contact persons: Tim Bates, tim.bates@noaa.gov; Trish Quinn, patricia.k.quinn@noaa.gov";
    String REMARK_08 "Two-stage multi-jet cascade impactors (Berner et al., 1979) sampling air at 60% RH were";
    String REMARK_09 "used to determine the sub- and supermicrometer concentrations of Cl-, Br-, NO3-, SO4=, methanesulfonate";
    String REMARK_10 "(MSA-), oxalate (Ox-), Na+, NH4+, K+, Mg+2, and Ca+2. Sampling periods ranged from 2 to 13 hours. The RH of the";
    String REMARK_11 "sampled air stream was measured a few inches upstream from the impactor. The 50% aerodynamic";
    String REMARK_12 "cutoff diameters, D50,aero, were 1.1 and 10 um. Submicrometer refers to particles with Daero < 1.1 um";
    String REMARK_13 "at 60% RH and supermicrometer refers to particles with 1.1 um < Daero < 10 um at 60% RH.";
    String REMARK_14 "The impaction stage at the inlet of the impactor was coated with silicone grease to prevent";
    String REMARK_15 "the bounce of larger particles onto the downstream stages. Tedlar films were used as the";
    String REMARK_16 "collection substrate in the impaction stage and a Millipore Fluoropore filter (1.0-um pore size)";
    String REMARK_17 "was used for the backup filter. Films were cleaned in an ultrasonic bath in 10% H2O2 for 30 min,";
    String REMARK_18 "rinsed in distilled, deionized water, and dried in an NH3- and SO2-free glove box. Filters and";
    String REMARK_19 "films were wetted with 1 mL of spectral grade methanol. An additional 5 mLs of distilled";
    String REMARK_20 "deionized water were added to the solution and the substrates were extracted by sonicating for 30 min.";
    String REMARK_21 "The extracts were analyzed by ion chromatography [Quinn et al., 2000]. All handling of the";
    String REMARK_22 "substrates was done in the glove box. Blank levels were determined by loading an impactor with";
    String REMARK_23 "substrates but not drawing any air through it.";
    String REMARK_24 "Concentrations are reported as ug/m3 at STP (25C and 1 atm).";
    String REMARK_25 "Values below the detection limit are denoted with a -8888 in the .itc file and 0 in the .acf and .itx files,";
    String REMARK_26 "missing data are denoted with a -9999.";
    String REMARK_27 "Berner et al., Sci. Total Environ., 13, 245 - 261, 1979.";
    String REMARK_28 "Quinn et al., J. Geophys. Res., 105, 6785 - 6805, 2000.";
    String source "Quinn, Patricia K/NOAA-PMEL/Phone: 206-526-6892 /Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: patricia.k.quinn@noaa.gov";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 33.3382;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String SUBMIT_DATE "20-OCT-2010";
    String subsetVariables "traj, id";
    String summary "Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry California Research at the Nexus of Air Quality and Climate Change (CALNEX) irregular data";
    String time_coverage_end "2010-06-06T15:03:00Z";
    String time_coverage_start "2010-05-15T03:12:00Z";
    String title "PMEL Atmospheric Chemistry CALNEX irregular data";
    String version "0";
    Float64 Westernmost_Easting -122.4263;
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.


 
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