Attributes {
    NC_GLOBAL {
        String title "MERRA2_GMI tavg24_3d_dac_Np: 3d,Daily,Time-Averaged,Pressure-Level,Replay,Daily Average Chemical Fields";
        String Conventions "COARDS", "GrADS";
        String dataType "Grid";
        String history "Tue Oct 10 19:35:46 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.";
    }
    hno4 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "pernitric acid ";
    }
    em_c3h8 {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "propane_emissions ";
    }
    no3 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitrogen trioxide ";
    }
    rcho {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "c2 aldehydes (c3h6o) ";
    }
    dustsa {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "dust_surface_area ";
    }
    ald2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "acetaldehyde (c2h4o) ";
    }
    brcl {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "bromine chloride ";
    }
    n2o5 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "dinitrogen pentoxide ";
    }
    ps {
        String units "Pa";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "surface_pressure ";
    }
    ccl4 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "carbon tetrachloride ";
    }
    aoadays {
        String units "days";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "age-of-air ";
    }
    br {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ground state atomic bromine (2p3/2) ";
    }
    oclo {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "symmetrical chlorine dioxide ";
    }
    co {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "carbon monoxide ";
    }
    brono2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "bromine nitrate ";
    }
    icesad {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ice_surface_area_density ";
    }
    w_epv {
        String units "m s-1 K m+2 kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "vertical_velocity * ertels_potential_vorticity ";
    }
    airdens {
        String units "kg m-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "moist_air_density ";
    }
    r4n2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "c4-c5 alkylnitrates (c4h9o3n) ";
    }
    cl2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "molecular chlorine ";
    }
    em_co {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "carbon_monoxide_emissions ";
    }
    so4od {
        String units "1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sulfate_optical_depth_(400_nm) ";
    }
    ocsa {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "organic_carbon_surface_area ";
    }
    lbssad {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "lbs_surface_area_density ";
    }
    ch2o {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "formaldehyde ";
    }
    o3 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ozone ";
    }
    hbr {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "hydrogen bromide ";
    }
    em_mek {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methyl_ethyl_ketone_(c4h8o)_emissions ";
    }
    hobr {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "hydrobromous acid ";
    }
    v_epv {
        String units "m s-1 K m+2 kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "northward_wind * ertels_potential_vorticity ";
    }
    ocod {
        String units "1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "organic_carbon_optical_depth_(400_nm) ";
    }
    clono2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "chlorine nitrate ";
    }
    v_ch4 {
        String units "m s-1 mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "northward_wind * methane ";
    }
    n {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ground state atomic nitrogen ";
    }
    bcsa {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "black_carbon_surface_area ";
    }
    so4sa {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "sulfate_surface_area ";
    }
    mo2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methylperoxy radical (ch3o2) ";
    }
    cfc11 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "cfc11 (cfcl3) ";
    }
    hcl {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "hydrochloric acid ";
    }
    acet {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "acetone ";
    }
    v_n2o {
        String units "m s-1 mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "northward_wind * nitrous oxide ";
    }
    o1d {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "first excited singlet state of atomic oxygen (1d) ";
    }
    cl {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ground state atomic chlorine (2p3/2) ";
    }
    oh {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "hydroxyl radical ";
    }
    bcod {
        String units "1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "black_carbon_optical_depth_(400_nm) ";
    }
    hocl {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "hydrochlorous acid ";
    }
    h2o2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "hydrogen peroxide ";
    }
    em_ald2 {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "acetaldehyde_(c2h4o)_emissions ";
    }
    em_alk4 {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "c4,5 alkanes_(c4h10)_emissions ";
    }
    hno3cond {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "condensed nitric acid ";
    }
    em_c2h6 {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ethane_emissions ";
    }
    dustod {
        String units "1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "dust_optical_depth_(400_nm) ";
    }
    n2o {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitrous oxide ";
    }
    bro {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "bromine monoxide radical ";
    }
    no {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitric oxide ";
    }
    ho2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "perhydroxyl radical ";
    }
    alk4 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "c4-5 alkanes (c4h10 c5h12) ";
    }
    cfc12 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "cfc12 (cf2cl2) ";
    }
    ch3cl {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methyl chloride ";
    }
    prpe {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "propene (c3h6) ";
    }
    c2h6 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "ethane ";
    }
    w_ch4 {
        String units "m s-1 mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "vertical_velocity * methane ";
    }
    em_no {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitric_oxide_emissions ";
    }
    mp {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methyl hydroperoxide ";
    }
    no2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitrogen dioxide ";
    }
    em_prpe {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "propene_(c3h6)_emissions ";
    }
    numdens10 {
        String units "cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "total number density * 1e-10 ";
    }
    hno3 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nitric acid ";
    }
    w_n2o {
        String units "m s-1 mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "vertical_velocity * nitrous oxide ";
    }
    ch4 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methane ";
    }
    c3h8 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "propane ";
    }
    ch3ccl3 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methyl chloroform ";
    }
    cfc113 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "cfc113 (c2cl3f3) ";
    }
    natsad {
        String units "cm+2 cm-3";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "nat_surface_area_density ";
    }
    airmass {
        String units "kg m-2";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "mass_of_air_in_layer ";
    }
    clo {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "chlorine monoxide radical ";
    }
    em_lgtno {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "no_emissions_from_lightning ";
    }
    isop {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "isoprene (c5h8) ";
    }
    mvk {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methyl vinyl ketone (c4h6o) ";
    }
    pan {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "peroxyacetyl nitrate (c2h3no5) ";
    }
    cl2o2 {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "chlorine peroxide ";
    }
    ch3br {
        String units "mol mol-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "methyl bromide ";
    }
    em_ch2o {
        String units "mol mol-1 s-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "formaldehyde_emissions ";
    }
    h2ocond {
        String units "kg kg-1";
        Float32 _FillValue 1.0E15;
        Float32 missing_value 1.0E15;
        String long_name "mass_fraction_of_total_cloud_water ";
    }
    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;
    }
}