This case study deals with methods of combining multiple maps for empirical modelling in a GIS. Several approaches to analyse multiple maps (Boolean logic models, Binary evidence maps, Index overlay with multi-class maps, and Fuzzy logic method) are introduced by means of a number of basic exercises that follow closely the chapter "Tools for map analysis: multiple maps" from the book Geographic Information Systems for Geoscientists, by Graeme Bonham-Carter (Pergamon,1994, 398 p.). A landfill site selection problem is used as an example.

For more information on this case study, contact:

C.J. van Westen
Department of Earth Systems Analysis,
International Institute for Geo-Information Science and Earth Observation (ITC),
P.O. Box 6, 7500 AA Enschede, The Netherlands
Tel: +31 53 4874263, Fax: +31 53 4874336, e-mail: westen@itc.nl