1. Instituto Geológico y Minero de España (IGME), Madrid 28003, Spain
2. Multidisciplinary Institute for Environment Studies ‘Ramón Margalef’, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain
3. Department of Geography, University of Murcia, Murcia 30100, Spain
4. Euro-Mediterranean Water Institute (IEA), Murcia 30100, Spain
5. Departamento de Producción Agraria, Universidad Politécnica de Madrid, Madrid 28040, Spain
6. Department of Computer Engineering (DISCA), Universitat Politècnica de València, Valencia 46022, Spain