[analysis] removed zonal means from map_season and map_difference for cleaner plot
[analysis] removed zonal means from map_season and map_difference for cleaner plot

git-svn-id: https://svn.zmaw.de/svn/pycmbs/trunk@555 46f1e1ae-ddaa-4461-89cc-888b818d8ef3

Former-commit-id: 7dc3097812dad6bf58004cf4c1ebd1cc098d7cd6
pygeo/pycmbs,pygeo/pycmbs