1. KERMIT, Department of Mathematical Modelling, Statistics and Bioinformatics; Ghent University; Coupure links 653 9000 Gent Belgium
2. Istituto G. Caporale; Via Campo Boario 64100 Teramo Italy
3. Laboratory of Hydrology and Water Management; Ghent University; Coupure links 653 9000 Gent Belgium
4. AVIA-GIS; Risschotlei 33 2980 Zoersel Belgium