source: http://www.knmi.nl/klimatologie/onderzoeksgegevens/potentiele_wind/
- Raw data + scripts: https://svn.oss.deltares.nl/repos/openearthtools/trunk/matlab/applications/KNMI/
- NetCDF-CF: http://opendap.deltares.nl/thredds/catalog/opendap/knmi/potwind/catalog.html
- KML (Google Earth) overview with links to netCDF-CF: http://kml.deltares.nl/kml/knmi/