wradlib.georef.GeorefMethods.site_distance#
- GeorefMethods.site_distance(**kwargs)#
Calculates great circle distance from bin at certain altitude to the radar site over spherical earth, taking the refractivity of the atmosphere into account.
Based on [Doviak et al., 1993] the site distance may be calculated as
\[s = k_e r_e \arcsin\left( \frac{r \cos\theta}{k_e r_e + h_n(r, \theta, r_e, k_e)}\right)\]where \(h_n\) would be provided by
bin_altitude
.- Parameters:
obj (
xarray.DataArray
|xarray.Dataset
) – DataArray or Dataset- Returns:
z (
xarray.DataArray
) – DataArray