This PR adds a doctest with an example of how to compute the ErtelPotentialVorticity to its docstring. It's probably a good idea to improve the test for ErtelPotentialVorticity too since right now it only tests that it calculates something, when really we wanna make sure it calculates the correct output.
This PR adds a doctest with an example of how to compute the
ErtelPotentialVorticity
to its docstring. It's probably a good idea to improve the test forErtelPotentialVorticity
too since right now it only tests that it calculates something, when really we wanna make sure it calculates the correct output.