1. Centre of Geographical Studies, Institute of Geography and Spatial Planning Universidade de Lisboa Rua Branca Edmée Marques 1600‐276 Lisboa Portugal
2. Department of Geography Universitat de Barcelona Montalegre 6 08001 Barcelona Catalonia Spain
3. Department of Geography Universidad Complutense de Madrid Calle del Profesor Aranguren, s/n. Facultad de Geografía e Historia, Ciudad Universitaria 28040 Madrid Spain
4. Associated Laboratory Terra Instituto Superior de Agronomia Tapada da Ajuda 1349‐017 Lisboa Portugal
5. Aix‐Marseille Université, CNRS, IRD, INRAE, Coll. France, UM 34 CEREGE Aix‐en‐Provence France