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AVO STAFF DIRECTORY
AVO is a very extended family. Some people work full time for the observatory, others well under half time. Others perform essential work, but only draw operating expenses. Several agencies contribute personnel at several locations. A wide variety of disciplines are represented, including geophysics, geology, glaciology, hydrology, geochemistry, remote sensing, computing, electronics, and administration. The following people are the paid staff, and share among themselves about 22 Full Time Equivalent positions.

[List staff by discipline] [List staff alphabetically] [List staff by office location]
* When listing staff by discipline, some individuals may be listed more than once.

Jonathan Dehn
Department: Remote Sensing
Institute: UAF/GI
Address: Fairbanks, Alaska 99775-7320
Discipline(s):
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Jon Dehn is a volcanologist working in remote sensing of volcanic eruptions, and physical volcanology. He performs regular monitoring of the North Pacific volcanoes using satellite data, and research into volcanic processes. He currently supervises two students, and is on the graduate committees of 4 others.
Jon is also affiliate faculty at the University of Hawaii, where he serves on two committees.

His current research focuses on detection of volcanic unrest using thermal satellite data, and process modeling of volcanic eruptions using a handheld infrared camera (the FLIR). He and Ken Dean are working on an atlas of satellite images of volcanic eruptions, to be published by Springer in 2005.

Webley, P.W., Lopez, T.M., Ekstrand, A.L., Kean, K.G., Rinkleff, P., Dehn, J., Cahill, C.F., Wessels, R.L., Bailey, J.E., Izbekov, P., and Worden, A., 2013, Remote observations of eruptive clouds and surface thermal activity during the 2009 eruption of Redoubt Volcano: Journal of Volcanology and Geothermal Research, v. 259, p. 185-200, doi:10.1016/j.jvolgeores.2012.06.023
http://dx.doi.org/10.1016/j.jvolgeores.2012.06.023

Ekstrand, A.L., Webley, P.W., Garay, M.J., Dehn, Jonathan, Prakash, Anupma, Nelson, D.L., Dean, K.G., and Steensen, Torge, 2013, A multi-sensor plume height analysis of the 2009 Redoubt eruption: Journal of Volcanology and Geothermal Research, v. 259, p. 170-184, doi: 10.1016/j.jvolgeores.2012.09.008
http://dx.doi.org/10.1016/j.jvolgeores.2012.09.008

van Manen, S.M., Blake, Stephen, and Dehn, Jonathan, 2011, A near real-time dual-band-spatial approach to determine the source of increased radiance from closely spaced active volcanoes in coarse resolution satellite data: International Journal of Remote Sensing, v. 32, p. 6055-6069, doi: 10.1080/01431161.2010.498452
http://dx.doi.org/10.1080/01431161.2010.498452

citation imageCahill, C.F., Rinkleff, P.G., Dehn, Jonathan, Webley, P.W., Cahill, T.A., and Barnes, D.E., 2010, Aerosol measurements from a recent Alaskan volcanic eruption: Implications for volcanic ash transport predictions: Journal of Volcanology and Geothermal Research, v. 198, n. 1-2, p. 76-80, doi:10.1016/j.jvolgeores.2010.08.012 .
http://dx.doi.org/10.1016/j.jvolgeores.2010.08.012

Bailey, J.E., Dean, K.G., Dehn, Jonathan, and Webley, P.W., 2010, Integrated satellite observations of the 2006 eruption of Augustine Volcano, chapter 20 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 481-506 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter20.pdf].
Download PDF chapter PDF on USGS website

Webley, P.W., Dean, K.G., Dehn, Jonathan, Bailey, J.E., and Peterson, Rorik, 2010, Volcanic-ash dispersion modeling of the 2006 eruption of Augustine Volcano Using the Puff Model, chapter 21 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 507-526 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter21.pdf].
Download PDF chapter PDF on USGS website

Wessels, R.L., Coombs, M.L., Schneider, D.J., Dehn, Jonathan, and Ramsey, M.S., 2010, High-resolution satellite and airborne thermal infrared imaging of the 2006 eruption of Augustine Volcano, chapter 22 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 527-552 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter22.pdf].
Download PDF chapter PDF on USGS website

van Manen, S.M., Dehn, Jonathan, West, M.E., Blake Stephen, and Rothery, D.A., 2010, The 2006 eruption of Augustine Volcano; combined analyses of thermal satellite data and reduced displacement, chapter 23 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 553-567 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter23.pdf].
Download PDF chapter PDF on USGS website

citation imageWebley, P.W., Dehn, J., Lovick, J., Dean, K.G., Bailey, J.E., and Valcic, L., 2009, Near-real-time volcanic ash cloud detection: Experiences from the Alaska Volcano Observatory: Journal of Volcanology and Geothermal Research, v. 186, n. 1-2, p. 79-90, doi:10.1016/j.jvolgeores.2009.02.010 .
http://dx.doi.org/10.1016/j.jvolgeores.2009.02.010

citation imageWebley,P.W., Dean, Kenneson, Bailey, J.E., Dehn, Jon, and Peterson, Rorik, 2009, Automated forecasting of volcanic ash dispersion utilizing Virtual Globes: Natural Hazards, v. 51, p. 345-361, doi: 10.1007/s11069-008-9246-2 .
http://dx.doi.org/10.1007/s11069-008-9246-2

citation imageSmith, J.G., Dehn, Jonathan, Hoblitt, R.P., LaHusen, R.G., Lowenstern, J.B., Moran, S.C., McClelland, Lindsay, McGee, K.A., Nathenson, Manuel, Okubo, P.G., Pallister, J.S., Poland, M.P., Power, J.A., Schneider, D.J., and Sisson, T.W., 2009, Volcano monitoring, in Young, Rob, and Norby, Lisa, eds., Geological Monitoring: Boulder, Colorado, Geological Society of America, p. 273-305.

van Manen, S.M., and Dehn, Jon, 2009, Satellite remote sensing of thermal activity at Bezymianny and Kliuchevskoi from 1993 to 1998: Geology, v. 37, p. 983-986.

Dean, K.G., Dehn, J., Webley, P., and Bailey, J., 2008, Evolution and advances in satellite analysis of volcanoes [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

Dehn, J., Dean, K., Webley, P., Bailey, J., and Valcic, L., 2008, Satellite remote sensing tools at the Alaska Volcano Observatory [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

van Manen, S., and Dehn, J., 2008, Debris flows associated with lava extrusion at three stratocones: Cleveland, Pavlof (Alaska) and Stromboli (Italy) [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

Lovick, J., Lawler, O., Dean, K., and Dehn, J., 2008, Observation of volcanoes through webcams: tools and techniques [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

Meleney, P., Nicolaysen, K.P., and Dehn, J., 2008, Petrogenic modeling of pre-2004 lavas from Mt. Cleveland, Chuginadak Island, AK [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

van Manen, S., Dehn, J., West, M., Blake, S., and Rothery, D., 2007, The 2006 Augustine Alaska eruption: combined analyses of seismic and thermal data [abs.]: Geological Society of London Bicentennial Conference, September 10-12, London, UK.

citation imageWebley, P.W., Dean, Kenneson, Bailey, J.E., and Peterson, Rorik, 2007, Volcanic ash modeling for North Pacific volcanoes automated operational monitoring and virtual globes: Fourth International Workshop on Volcanic Ash, World Meterological Organization (WMO) in close collaboration with the International Civil Aviation Organziation (ICAO) and the Civil Aviation Authority of New Zealand, Rotorua, New Zealand, 26-20 March, 2007, 8 p., available at http://www.caa.govt.nz/Volcanic_Ash_Workshop/Papers/VAWS4WP0605.pdf .

citation imagePower, J.A., Nye, C.J., Coombs, M.L., Wessels, R.L., Cervelli, P.F., Dehn, J., Wallace, K.L., Freymueller, J.T., and Doukas, M.P., 2006, The reawakening of Alaska's Augustine Volcano: Eos, v. 87, n. 37, p. 373, 377.

Cahill, C.F., Cahill, T.A., Webley, P., Wallace, K.L., Dean, K.G., and Dehn, J., 2006, Size- and time-resolved composition of volcanic ash from Augustine Volcano, Alaska [abs.]: Eos, Joint Assembly Supplement, v. 87, abstract V22B-05.

Bailey, J.E., Dehn, Jonathan, Webley, Peter, and Skoog, Ray, 2006, Volcano monitoring using Google Earth [abs.]: Eos, Joint Assembly Supplement, v. 87, abstract IN43A-0898.

Bailey, John, and Dehn, Jonathan, 2006, Volcano monitoring using Google Earth [abs]: in Brady, S.R., Sinha, A.K., and Gundersen, L.C., Geoinformatics 2006 - Abstracts, U.S. Geological Survey Scientific Investigations Report 2006-5201, p. 25, available at http://pubs.usgs.gov/sir/2006/5201/ .
Download link to USGS website, containing links to the PDF on a USGS server

Webley, Peter, Dean, Ken, Dehn, Jon, Bailey, John, Schneider, Dave, Wessels, Rick, Lovick, Joseph, Rinkleff, Peter, and Izbekov, Pavel, 2006, The role of remote sensing in monitoring of Augustine Volcano [abs.]: Geological Society of America - Abstracts with Programs, v. 38, n. 5, p. 28.

citation imagePatrick, M. R., Dehn, J., and Dean, K., 2005, Numerical modeling of lava flow cooling applied to the 1997 Okmok eruption: Comparison with Advanced Very High Resolution Radiometer thermal imagery: Journal of Geophysical Research, v. 110, n. B02210, 9 p., doi: 10.1029/2003JB002538
http://dx.doi.org/10.1029/2003JB002538

citation imagePapp, K.P., Dean, K.G., and Dehn, J., 2005, Predicting regions susceptible to high concentrations of airborne volcanic ash in the North Pacific region: Journal of Volcanology and Geothermal Research, v. 148, no. 3-4, p. 295-314, doi: 10.1016/j.jvolgeores.2005.04.020.
http://dx.doi.org/10.1016/j.jvolgeores.2005.04.020

Patrick, M. R., Dean, K., and Dehn, J., 2004, Active mud volcanism observed with Landsat 7 ETM+: Journal of Volcanology and Geothermal Research, v. 131, n. 3-4, p. 307-320.

Ramsey, Michael, and Dehn, Jonathan, 2004, Spaceborne observations of the 2000 Bezymianny, Kamchatka eruption: the integration of high-resolution ASTER data into near real-time monitoring using AVHRR: Journal of Volcanology and Geothermal Research, v. 135, p. 127-146.

Patrick, M. R., Dehn, Jon, and Dean, Ken, 2004, Numerical modeling of lava flow cooling applied to the 1997 Okmok eruption: approach and analysis: Journal of Geophysical Research, v. 109, n. 3, p. 1-17.

Patrick, M. R., Dehn, J., Papp, K. R., Lu, Z., Dean, K., Moxey, L., Izbekov, P., and Guritz, R., 2003, The 1997 eruption of Okmok Volcano, Alaska: a synthesis of remotely sensed imagery: Journal of Volcanology and Geothermal Research, v. 127, n. 1-2, p. 87-105.

Ramsey, M.S., Dehn, J., Adleman, J.N., Larsen, J.F., McGimsey, R.G., Neal, C.A., and Wessels, R., 2003, Deciphering silicic dome emplacement processes in the northern Pacific: Quantitative analyses of high resolution satellite and field-based data [abs.]: in Fall meeting supplement, Eos, v. 84, n. 46, V51F-0346.
Download website with full text

citation imageNye, C. J., Keith, T. E. C., Eichelberger, J. C., Miller, T. P., McNutt, S. R., Moran, S., Schneider, D. J., Dehn, J., and Schaefer, J. R., 2002, The 1999 eruption of Shishaldin Volcano, Alaska: monitoring a distant eruption: Bulletin of Volcanology, v. 64, n. 8, p. 507-519.
http://dx.doi.org/10.1007/s00445-002-0225-2

citation imageMoxey, L., Guritz, R., Dehn, J., and Price, E., 2002, Surface change detection, topographic and geologic mapping of Okmok volcano, Alaska, using high-resolution AIRSAR sensor data: NASA-Jet Propulsion Laboratory, AIRSAR Workshop, Pasadena, California, p. unknown.

Dean, K. G., Engle, K., Groves, J., Dehn, J., and Partington, K., 2002, Analysis of surface processes using SAR data; Westdahl Volcano, Alaska: International Journal of Remote Sensing, v. 23, n. 21, p. 4529-4550.

Papp, K. R., Dean, K. G., and Dehn, J., 2002, An analysis of volcanic ash cloud movement and dispersion in the North Pacific region [abs.]: in Whitledge, Terry, (ed.), Connectivity in northern waters; Arctic Ocean, Bering Sea, and Gulf of Alaska interrelationships, Arctic Science Conference, 53, Program and Abstracts, Fairbanks, AK, Sept. 18-21, 2002, p. 180.

citation imageDean, Kenneson, Dehn, Jonathan, McNutt, Steve, Neal, Christina, Moore, Richard, and Schneider, Dave, 2002, Satellite imagery proves essential for monitoring erupting Aleutian volcano: Eos, v. 83, n. 22, p. 241, 246-247.

citation imageDehn, Jonathan, Dean, K. G., Engle, Kevin, and Izbekov, Pavel, 2002, Thermal precursors in satellite images of the 1999 eruption of Shishaldin Volcano: Bulletin of Volcanology, v. 64, n. 8, p. 525-534.

citation imageDean, K. G., Dehn, Jon, Engle, Kevin, Izbekov, Pavel, and Papp, Ken, 2002, Operational satellite monitoring of volcanoes at the Alaska Volcano Observatory: in Harris, A. J. H., Wooster, Martin, and Rothery, D. A., (eds.), Monitoring Volcanic Hotspots Using Thermal Remote Sensing, Advances in Environmental Monitoring and Modelling, v. 1, n. 3, p. 70-97.

Moxey, L., Dehn, J., Papp, K. R., Patrick, M. R., and Guritz, R., 2001, The 1997 eruption of Okmok volcano, Alaska, a synthesis of remotely sensed data [abs.]: Eos, v. 82, n. 47, p. 1375.

Schneider, D. J., Dean, K. G., Dehn, J., Miller, T. P., and Kirianov, V. Y., 2000, Monitoring and analyses of volcanic activity using remote sensing data at the Alaska Volcano Observatory: case study for Kamchatka, Russia, December 1997: in Mouginis-Mark, P. J., Crisp, J. A., and Fink, J. H., Remote sensing of active volcanism, American Geophysical Union Geophysical Monograph 0116, p. 65-86.

Dehn, Jonathan, Dean, Ken, and Engle, Kevin, 2000, Thermal monitoring of North Pacific volcanoes from space: Geology, v. 28, n. 8, p. 755-758.

McNutt, S. R., Dehn, Jonathan, and Gardner, James, 2000, Phreatic explosions at Shishaldin Volcano, Alaska, September 1999 to August 2000 [abs.]: Eos, v. 81, n. 48, p. 1376.

Patrick, Matt, Dehn, Jonathan, Dean, Kenneson, and Engle, Kevin, 2000, Numerical model of lava flow cooling for the 1997 Okmok eruption: comparison with AVHRR thermal imagery [abs.]: Eos, v. 81, n. 48, p. 1312.

Papp, K. R., Dean, K. G., Dehn, Jonathan, and Engle, Kevin, 2000, An airborne ash hazards map for Shishaldin Volcano, Alaska [abs.]: Eos, v. 81, n. 48, p. 1311-1312.

Dehn, J., Dean, K. G., Worley, S., Izbekov, P., Schneider, D., Theilen, M., and Engle, K., 1999, Thermal satellite imagery of the 1999 eruption of Shishaldin Volcano [abs.]: in Severin, Barb and Anderson, P. M., (eds.), Science in the north: 50 years of change, Arctic Science Conference, 50, Program and Abstracts, Denali National Park and Preserve, AK, Sept 19-22, 1999, p. 210-211.

Dean, K., Dehn, J., Izbekov, P., Worley, S., Engle, K., and Schneider, D., 1999, The use of satellite data to monitor volcanoes in the North Pacific region: in Thematic Conference on Geologic Remote Sensing, 13, Proceedings, v. 2, Vancouver, BC, Canada, March 1-3, 1999, Ann Arbor, MI, Environmental Research Institute of Michigan, p. II.84-II.87.

Izbekov, Pavel, Dean, Kenneson, and Dehn, Jonathan, 1999, Synthetic aperture radar mosaic of volcanic landforms on the Kamchatka Peninsula, Russia [abs.]: Eos, v. 80, n. 46, p. 1147.

Dehn, Jonathan, Dean, Kenneson, Worley, Shelly, Izbekov, Pavel, Schneider, D. J., Theilen, Monica, and Engle, Kevin, 1999, Thermal satellite imagery of the 1999 eruption of Shishaldin Volcano [abs.]: Eos, v. 80, n. 46, p. 1146.

Dean, Ken, Engle, Kevin, George, Shari, Partington, Kim, and Dehn, Jon, 1999, Analysis of surface volcanic processes using SAR data: Westdahl Volcano, Alaska [abs.]: in Severin, Barb and Anderson, P. M., (eds.), Science in the north: 50 years of change, Arctic Science Conference, 50, Program and Abstracts, Denali National Park and Preserve, AK, Sept 19-22, 1999, p. 209-210.

Dehn, J., Dean, K. G., Schneider, D. S., Izbekov, P., and Worley, S., 1998, Monitoring of Arctic volcanoes via remote sensing [abs.]: in International Cooperation in Arctic Research: Detecting Global Change and its Impacts in the Western Arctic, Arctic Science Conference, 49, Program and Abstracts, Fairbanks, AK, Oct. 25-28, 1998, p. 166-167.

Izbekov, Pavel, Dean, K. G., and Dehn, Jon, 1998, SAR and TIR analysis of the 1997 eruption of Okmok Volcano, Alaska [abs.]: in Arctic Science Conference, 49, Program and Abstracts, Fairbanks, AK, Oct. 25-28, 1998, p. 175.

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