Ph.D. Dalhousie University
B.Sc. (Hon.) Dalhousie University
Fellow of the Royal Society of Canada
Fellow of the American Geophysical Union
Royal Geographical Society Gold Medal (2010)
Dr. Macdonald conducts research on biogeochemical pathways in aquatic systems, including the cycling of organic carbon in the ocean, the cycling of freshwater in the Arctic Ocean, and contaminant pathways in temperate and polar aquatic systems. Much of his research is founded in the application of biomarkers (e.g., lignins, alkanes, PAH, sterols), stable isotopes (δ13C, δ15N, δ18O) and Δ14C to determine sources, mechanisms of transport, mechanisms of change, and historical records of organic and contaminant deposition. Syntheses of aquatic systems have been organized around the establishment of budgets for freshwater, organic carbon and contaminants in various settings including the Arctic Ocean and Eastern Pacific Ocean. As part of international programs determining the sources and effects of contaminants undergoing long-range transport, Dr. Macdonald has been involved in several large assessments and reviews under the Northern Contaminants Programme and the Arctic Monitoring and Assessment Programme. His work has been published in over 180 peer-reviewed journal articles, numerous book chapters and reports, and one co-edited book on the organic carbon cycle in the Arctic Ocean.
Institute of Ocean Sciences (Sidney, BC)