Associate Professor
(907) 474-6499
jdehn [at] gi [dot] alaska [dot] edu

Affiliations
Volcanology Group
UAF Department of Geology & Geophysics

Dr. Dehn’s research is focused in volcanology, investigating heat flux at volcanoes using thermal infrared data and volcano monitoring using satellite data for the Alaska Volcano Observatory.

He has started many international collaborations, and organized the first International Seismic-Volcanic Workshop in Petropavlosk Kamchatka in 1998. Prior to joining the Geophysical Institute, Dehn held positions at the GEOMAR Research Institution in Keil, Germany, and at the Geological Survey of Japan's Hokkaido Branch. Dehn is a three time Fulbright Scholar to Germany.

Recent and ongoing work and research interests include:

• Monitoring Volcanoes in the North Pacific Region
• Thermal Characterisics of Volcanoes and Lava Flows
• Real-time reception and analysis of satellite data.
• Book: Monitoring Volcanoes in the North Pacific: Observations from Space, Springer Press

Images: ( ABOVE) AVHRR satellite image of lava and hot debris flow at Cleveland volcano that resulted in the formation of a delta in Gulf of Alaska. 

Images: (LEFT TOP) The material on the delta was still hot 6 months after the eruption as recorded by the hand held thermal image camera (LEFT BOTTOM).