Professor, University of Alaska-Fairbanks, Geophysical Institute, Department of Geology and Geophysics
Assistant Professor, University of Alaska-Fairbanks, Water and Environmental Resources Center
Associate Professor of Geophysics, University of Alaska-Fairbanks, Geophysics Institute
Professor of Forestry, University of Alaska-Fairbanks
Fire Ecologist, National Park Service in Alaska.
Research Ecologist, USDA Forest Service, Affiliate Assistant Professor, Department of Biology and Wildlife, University of Alaska Fairbanks
University of Alaska Fairbanks research professor in Natural Resources