[process] MapSPAM Select Protected Areas

This process is part of the MapSPAM series on spatial production. It is created as an interim process using the listed datasets below. The process deals with the selection of all protected areas from the World Database on Protected Areas (WDPA) as a parameter to indicate the locations, where crop production is likely to take place. Afterwards the data originally available as polygons is converted into 5 arcmin grid.