Dataset {
    Float32 X[X = 21];
    Float32 T[T = 13];
    Float32 Y[Y = 61];
    Float32 I[I = 28];
    Grid {
     ARRAY:
        Float32 sealevel[T = 13][Y = 61][X = 21];
     MAPS:
        Float32 T[T = 13];
        Float32 Y[Y = 61];
        Float32 X[X = 21];
    } sealevel;
    Structure {
        Grid {
         ARRAY:
            Float32 lat[I = 28];
         MAPS:
            Float32 I[I = 28];
        } lat;
        Grid {
         ARRAY:
            Float32 lon[I = 28];
         MAPS:
            Float32 I[I = 28];
        } lon;
    } stations;
} ers1;