Dr. Dehn studies volcanology through remote sensing techniques at the Alaska Volcano Observatory. He organized the first Internal Workshop on Kamchatkan-Aleutian Subduction Processes in Petropavlosk, Russia, and has started new collaborations with colleagues throughout the North Pacific Region. Before coming to the Geopyhsical Institute, Dehn held positions at Kiel University's GEOMAR marine research center in Germany, and at the Geological Survey of Japan's Hokkaido Branch in Sapporo. Dehn is also a three-time Fulbright Scholar to Germany.