1. Department of Earth, Ocean and Atmospheric Sciences; University of British Columbia; Vancouver British Columbia Canada
2. Department of Marine Chemistry and Geochemistry; Woods Hole Oceanographic Institution; Woods Hole Massachusetts USA
3. Fisheries and Oceans Canada, Institute of Ocean Sciences; Sidney British Columbia Canada
4. Centre for Earth Observation Science, University of Manitoba; Winnipeg Manitoba Canada
5. Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski; Rimouski Québec Canada
6. Laboratoire de Glaciologie, Université Libre de Bruxelles; Brussels Belgium
7. Department of Botany; University of British Columbia; Vancouver British Columbia Canada