wradlib.georef.polar.GeorefPolarMethods.georeference

GeorefPolarMethods.georeference(**kwargs)

Georeference Dataset/DataArray.

Added in version 1.5.

This function adds georeference data to xarray Dataset/DataArray obj.

Parameters:

obj (xarray.Dataset or xarray.DataArray)

Keyword Arguments:

• crs –

  Coordinate Reference System (CRS) of the coordinates. Must be provided and 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 AEQD.

• re (float) – earth’s radius [m]

• 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 or xarray.DataArray)