Department of Geography, University of British Columbia, 1984 West Mall, Vancouver, BC V6T1Z2 Canada
Disaster Prevention Research Institute, Geohazards Division, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
Research Branch, British Columbia Minstry of Forests, c/o Fisheries Centre, Aquatic Ecosystems Research Laboratory (AERL), 2202 Main Mall, University of British Columbia, Vancouver, BC V6T 1Z4 Canada