Senior researcher, Space Science and Engineering Center
Expert on hurricane research, and environmental satellite techniques/applications to tropical cyclones
Professor emeritus, geology and geophysics; director, ice coring and drilling services
Expert on Antarctica, glaciology, ice drilling
Professor, atmospheric and oceanic sciences; director, Cooperative Institute for Meteorological Satellite Studies
Expert on satellite meteorology and climatology, weather, atmospheric optics
Associate professor, atmospheric and oceanic sciences
Expert on climate variations (El Niño, tropical variations), climate change and climate change impacts in Wisconsin.