Dataset { Float32 T[T = 12]; Float32 Y[Y = 683]; Float32 X[X = 621]; Grid { ARRAY: Float32 partial_Y[T = 12][Y = 683][X = 621]; MAPS: Float32 T[T = 12]; Float32 Y[Y = 683]; Float32 X[X = 621]; } partial_Y; } partial_Y;