Attributes {
    NC_GLOBAL {
        String title "monthly ERA-40, from 9/1957 to 8/2002";
        String Conventions "COARDS", "GrADS";
        String dataType "Grid";
        String documentation "http://apdrc.soest.hawaii.edu/datadoc/era40mp.htm";
        String history "Fri Sep 26 16:35:33 HST 2008 : imported by GrADS Data Server 1.3";
    }
    lon {
        String grads_dim "x";
        String grads_mapping "linear";
        String grads_size "144";
        String units "degrees_east";
        String long_name "longitude";
        Float64 minimum 0;
        Float64 maximum 357.5;
        Float32 resolution 2.5;
    }
    lat {
        String grads_dim "y";
        String grads_mapping "linear";
        String grads_size "73";
        String units "degrees_north";
        String long_name "latitude";
        Float64 minimum -90;
        Float64 maximum 90;
        Float32 resolution 2.5;
    }
    time {
        String grads_dim "t";
        String grads_mapping "linear";
        String grads_size "540";
        String grads_min "12z15sep1957";
        String grads_step "1mo";
        String units "days since 1-1-1 00:00:0.0";
        String long_name "time";
        String minimum "12z15sep1957";
        String maximum "12z15aug2002";
        Float32 resolution 30.435993;
    }
    lev {
        String grads_dim "z";
        String grads_mapping "levels";
        String units "millibar";
        String long_name "altitude";
        Float64 minimum 1000;
        Float64 maximum 1;
        Float32 resolution 45.409092;
    }
    hgt {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* geopotential: m**2.s**-2 ";
    }
    air {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* temperature: k ";
    }
    uwnd {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* u velocity: m.s**-1 ";
    }
    vwnd {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* v velocity: m.s**-1 ";
    }
    shum {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* specific humidity: kg.kg**-1 ";
    }
    omega {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* vertical velocity: pa.s**-1 ";
    }
    vor {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* relative vorticity: s**-1 ";
    }
    div {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* divergence: s**-1 ";
    }
    rhum {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* relative humidity: % ";
    }
    ozone {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* ozone mass mixing ratio: kg.kg**-1 ";
    }
    pvor {
        Float32 _FillValue 9.999E20;
        Float32 missing_value 9.999E20;
        String long_name "* potential voticity: k.m**2.kg**-1.s**-1 ";
    }
}