Dataset {
    Float32 Y[Y = 73];
    Float32 X[X = 144];
    Float32 T[T = 600];
    Grid {
     ARRAY:
        Float32 olr[T = 600][Y = 73][X = 144];
     MAPS:
        Float32 T[T = 600];
        Float32 Y[Y = 73];
        Float32 X[X = 144];
    } olr;
} monthly;