def _import_mch_geodata():
    """
    Swiss radar domain CCS4
    These are all hard-coded because the georeferencing is missing from the gif files.
    """

    geodata = {}

    # LV03 Swiss projection definition in Proj4
    projdef = ""
    projdef += "+proj=somerc "
    projdef += " +lon_0=7.43958333333333"
    projdef += " +lat_0=46.9524055555556"
    projdef += " +k_0=1"
    projdef += " +x_0=600000"
    projdef += " +y_0=200000"
    projdef += " +ellps=bessel"
    projdef += " +towgs84=674.374,15.056,405.346,0,0,0,0"
    projdef += " +units=m"
    projdef += " +no_defs"
    geodata["projection"] = projdef

    geodata["x1"] = 255000.0
    geodata["y1"] = -160000.0
    geodata["x2"] = 965000.0
    geodata["y2"] = 480000.0

    geodata["xpixelsize"] = 1000.0
    geodata["ypixelsize"] = 1000.0
    geodata["cartesian_unit"] = "m"
    geodata["yorigin"] = "upper"

    return geodata
Swiss radar domain CCS4
These are all hard-coded because the georeferencing is missing from the gif files.
pysteps/io/importers.py