Dataset {
    Float32 Y[Y = 3598];
    Float32 X[X = 3599];
    Grid {
     ARRAY:
        Float32 prec[Y = 3598][X = 3599];
     MAPS:
        Float32 Y[Y = 3598];
        Float32 X[X = 3599];
    } prec;
} prec;