geolaplacian

geolaplacian(lon, lat, data, accuracy=4)

Calculate Laplacian in spherical coordinates.

Parameters

• lon, lat (ndarray) – The longitude and latitude.

• data (ndarray) – The data.

Notes

The solved equation is as follows:

\[\nabla^2 = \frac{\cos^2(\phi)}{a^2}\frac{\partial^2}{\partial^2\theta} + \frac{\cos(\phi)}{a^2}\frac{\partial}{\partial\phi}\frac{\cos\phi\partial}{\partial\phi}\]