1. Department of Earth, Ocean and Atmospheric Sciences University of British Columbia Vancouver BC Canada
2. Applied Ocean Physics and Engineering Department Woods Hole MA USA
3. Department of Aeronautics and Astronautics Massachusetts Institute of Technology Cambridge MA USA
4. Department of Geography University of Calgary Calgary AB Canada
5. Marine Chemistry and Geochemistry Department Woods Hole Oceanographic Institution Woods Hole MA USA
6. Now at School of Earth and Ocean Sciences University of Victoria Victoria BC Canada
7. Department of Botany University of British Columbia Vancouver BC Canada