Memo Info for WFS: http://www.paikkatietohakemisto.fi/geonetwork/srv/eng/catalog.search;jsessionid=1r60gkunnlute1o7ttvhhntkdw#/home Paikkatietoikkunasta metatietoja Zonal stats by CSC: https://github.com/csc-training/geocomputing/tree/master/python/zonal_stats