pyinterp.geodetic.Spheroid.geocentric_radius

Spheroid.geocentric_radius(self: pyinterp.core.geodetic._Spheroid, lat: float) → float

Gets the geocentric radius at the given latitude $phi$.

Parameters:

lat – The latitude, in degrees.

Returns:

\[\begin{split}R(\phi)=\sqrt{\frac{{(a^{2}\cos(\phi))}^{2} + \\ (b^{2}\sin(\phi))^{2}}{(a\cos(\phi))^{2} + (b\cos(\phi))^{2}}}\end{split}\]