Attributes {
    NC_GLOBAL {
        String title "Aerosol Optical Depth Index from Nimbus7-TOMS observations";
        String Conventions "COARDS", "GrADS";
        String dataType "Grid";
        String documentation "http://apdrc.soest.hawaii.edu/datadoc/toms_nimbus.htm";
        String history "Fri Aug 22 12:04:49 HST 2008 : imported by GrADS Data Server 1.3";
    }
    lon {
        String grads_dim "x";
        String grads_mapping "linear";
        String grads_size "360";
        String units "degrees_east";
        String long_name "longitude";
        Float64 minimum -179.5;
        Float64 maximum 179.5;
        Float32 resolution 1.0;
    }
    lat {
        String grads_dim "y";
        String grads_mapping "linear";
        String grads_size "180";
        String units "degrees_north";
        String long_name "latitude";
        Float64 minimum -89.5;
        Float64 maximum 89.5;
        Float32 resolution 1.0;
    }
    time {
        String grads_dim "t";
        String grads_mapping "linear";
        String grads_size "172";
        String grads_min "00z15jan1979";
        String grads_step "1mo";
        String units "days since 1-1-1 00:00:0.0";
        String long_name "time";
        String minimum "00z15jan1979";
        String maximum "00z15apr1993";
        Float32 resolution 30.432749;
    }
    lev {
        String grads_dim "z";
        String grads_mapping "linear";
        String units "millibar";
        String long_name "altitude";
        Float64 minimum 1;
        Float64 maximum 1;
    }
    index {
        Float32 _FillValue 0.0;
        Float32 missing_value 0.0;
        String long_name "* toms aerosol optical depth index ";
    }
    number {
        Float32 _FillValue 0.0;
        Float32 missing_value 0.0;
        String long_name "* number of days per month at each grid ";
    }
}