Use of cartopy instead of basemap

Basemap is not longer under active development (see here). Future compatibility with other libraries such as matplotlib or numpy is unsure.

Currently, Basemap 1.3 is not compatible with matplotlib>=3.3 due to a deprecated function: https://github.com/matplotlib/basemap/issues/495

Apart from that, cartopy might enhance some figures in arosics.

Edited Aug 19, 2020 by Daniel Scheffler