Dataset {
    Float32 T[T = 488];
    Float32 Y[Y = 387];
    Float32 X[X = 266];
    Grid {
     ARRAY:
        Float32 spi[Y = 387][X = 266][T = 488];
     MAPS:
        Float32 Y[Y = 387];
        Float32 X[X = 266];
        Float32 T[T = 488];
    } spi;
} spi;