wradlib.georef.GeorefMethods.xyz_to_spherical

GeorefMethods.xyz_to_spherical(**kwargs)

Returns spherical representation (r, theta, phi) of given cartesian coordinates (x, y, z) with respect to the reference altitude (asl) considering earth’s geometry (crs).

Parameters:

obj (xarray.DataArray | xarray.Dataset)

Keyword Arguments:

• crs –

  Coordinate Reference System (CRS) of the source coordinates. Can be one of:

  • A pyproj.crs.CoordinateSystem instance

  • A cartopy.crs.CRS instance

  • A osgeo.osr.SpatialReference instance

  • A type accepted by pyproj.crs.CRS.from_user_input (e.g., EPSG code, PROJ string, dictionary, WKT, or any object with a to_wkt() method)

  Defaults to None.

• ke (float) – Adjustment factor to account for the refractivity gradient that affects radar beam propagation. In principle this is wavelength- dependend. The default of 4/3 is a good approximation for most weather radar wavelengths

Returns:

obj (xarray.Dataset) – obj with added spherical coordinates.