We have just completed the OpenDA contribution to the data-assimilation summerschool in Brasov Rumania.  Every two years Remus Hanea from Statoil organizes this excellent summerschool attracting contributions from numerous researchers. There were about 30 very enthousiastic students with various backgrounds. The purpose of the OpenDA contribution was to provide hands-on exercises wotking with data-assimilation on their own laptops. More about the summer-school can be found here.