School of Earth and Ocean Sciences, University of Victoria, PO Box 3055 STN CSC, Victoria, BC V8W 3P6 Canada
School of Earth and Ocean Sciences, University of Victoria, PO Box 3055 STN CSC, Victoria, BC V8W 3P6 Canada ; Pacific Geoscience Centre, Geological Survey of Canada, PO Box 6000, Sidney, BC V8L 4B2 Canada
Meteorological Research Institute, Japan Meteorological Agency, 1-1 Nagamine, Tsukuba, Ibaraki, 305-0052 Japan