1. GIS Division, Dept. of Surveying and Geomatics Eng., College of Eng., University of Tehran, Tehran, Iran, Tel: 00982188400424 and 00989126860309
2. Centre of Excellence in Geomatic Eng. in Disaster Management, Dept. of Serveying and Geomatic Eng., College of Eng., University of Tehran, Tehran, Iran
3. Department of Geomatic Science, Laval University, Québec, Canada
4. Dept. of GIS, Faculty of Geodesy and Geomatic Eng., K.N. Toosi Univ. of Technology, Tehran, Iran