Dataset {
    Float32 latitude[latitude = 560];
    Float32 longitude[longitude = 1440];
    Float32 coefficients[coefficients = 9];
    Grid {
      Array:
        Float32 regress_coefficients[latitude = 560][longitude = 1440][coefficients = 9];
      Maps:
        Float32 latitude[latitude = 560];
        Float32 longitude[longitude = 1440];
        Float32 coefficients[coefficients = 9];
    } regress_coefficients;
} wind_zonal_coefficients.nc;