Dataset {
    Float32 X[X = 66];
    Float32 Y[Y = 52];
    Float32 T[T = 490];
    Grid {
     ARRAY:
        Float64 spi[Y = 52][X = 66][T = 490];
     MAPS:
        Float32 Y[Y = 52];
        Float32 X[X = 66];
        Float32 T[T = 490];
    } spi;
} spi;