Attributes {
    NC_GLOBAL {
        String title "MERRA2_GMI tavg24_3d_aer_Np: 3d,24-Hourly,Time-averaged,Pressure-Level,Replay,Aerosol Fields";
        String Conventions "COARDS", "GrADS";
        String dataType "Grid";
        String history "Tue Oct 10 19:35:52 UTC 2023 : imported by GrADS Data Server 2.0";
        String extra_das_attribute "This is an example of metadata added using a supplementary DAS file. See testdata/extra.das for the source.";
    }
    oc {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "organic carbon mass mixing ratio __ensemble__ ";
    }
    ni {
        String units "kg/kg";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitrate mass mixing ratio __ensemble__ ";
    }
    so4v {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sulphate aerosol (volcanic) ";
    }
    so4 {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sulphate aerosol ";
    }
    so2 {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sulphur dioxide ";
    }
    ps {
        String units "Pa";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "surface_pressure ";
    }
    ss {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sea salt mass mixing ratio ";
    }
    du {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "dust mass mixing ratio ";
    }
    hno3conc {
        String units "kg m-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitric acid mass concentration __ensemble__ ";
    }
    niconc {
        String units "kg m-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitrate mass concentration __ensemble__ ";
    }
    bc {
        String units "kg/kg";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "black carbon mass mixing ratio __ensemble__ ";
    }
    lwi {
        String units "1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "land(1)_water(0)_ice(2)_flag ";
    }
    airdens {
        String units "kg m-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "moist_air_density ";
    }
    nh3 {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ammonia (nh3, gas phase) ";
    }
    nh4 {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ammonium ion (nh4+, aerosol phase) ";
    }
    so2v {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sulphur dioxide (volcanic) ";
    }
    lon {
        String grads_dim "x";
        String grads_mapping "linear";
        String grads_size "576";
        String units "degrees_east";
        String long_name "longitude";
        Float64 minimum -180.00000000000;
        Float64 maximum 179.37500000000;
        Float32 resolution 0.625;
    }
    lat {
        String grads_dim "y";
        String grads_mapping "linear";
        String grads_size "361";
        String units "degrees_north";
        String long_name "latitude";
        Float64 minimum -90.00000000000;
        Float64 maximum 90.00000000000;
        Float32 resolution 0.5;
    }
    time {
        String grads_dim "t";
        String grads_mapping "linear";
        String grads_size "14610";
        String grads_min "12z01jan1980";
        String grads_step "1440mn";
        String units "days since 1-1-1 00:00:0.0";
        String long_name "time";
        String minimum "12z01jan1980";
        String maximum "12z31dec2019";
        Float32 resolution 1.0;
    }
    lev {
        String grads_dim "z";
        String grads_mapping "levels";
        String units "millibar";
        String long_name "altitude";
        Float64 minimum 1000.00000000000;
        Float64 maximum 0.10000000000;
        Float32 resolution 23.253489;
    }
}