George, D.A., Gelfenbaum, G., and Stevens, A.W., 2012, Modeling the Hydrodynamic and Morphologic Response of an Estuary Restoration: Estuaries and Coasts, v. 35 no. 6, pp. 1510–1529, doi: 10.1007/s12237-012-9541-8.
Guy Gelfenbaum
Biography
Education
1978 B.S. Geology University of Wisconsin, Madison
1982 M.S. Geological Oceanography University of Washington, Seattle
1988 Ph.D. Geological Oceanography University of Washington, Seattle
2017- Center Director - Pacific Coastal and Marine Science Center, Santa Cruz, California
Ecosystem Dynamics, Project Chief: Coastal Habitats in Puget Sound - The goal of these projects is to develop scientific information and tools to support natural resource managers in the adaptive management of critical nearshore ecosystems in Puget Sound
Large-Scale Coastal Change, Project Chief: Southwest Washington Coastal Erosion Study - Research involves understanding complex relationships among sediment supply, littoral processes, and shoreline erosion or accretion in a high-energy coastal environment. Studies encompass multiple time and space scales of coastal evolution, and successfully differentiate natural and anthropogenic influences on coastal change.
Catastrophic Geologic Hazards, Co-Principal Investigator: Tsunami Hazards Study - Research effort to improve our understanding of tsunami hazards through identification and interpretation of sediments deposited from tsunamis
Science and Products
Year Published: 2017
Is “morphodynamic equilibrium” an oxymoron?
Morphodynamic equilibrium is a widely adopted yet elusive concept in the field of geomorphology of coasts, rivers and estuaries. Based on the Exner equation, an expression of mass conservation of sediment, we distinguish three types of equilibrium defined as static and dynamic, of which two different types exist. Other expressions such as...
Zhou, Zeng; Coco, Giovanni; Townend, Ian; Olabarrieta, Maitane; van der Wegen, Mick; Gong, Zheng; D'Alpaos, Andrea; Gao, Shu; Jaffe, Bruce E.; Gelfenbaum, Guy R.; He, Qing; Wang, Yaping; Lanzoni, Stefano; Wang, Zhengbing; Winterwerp, Han; Zhang, ChangkuanAttribution: Pacific Coastal and Marine Science Center
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Zhou, A., Coco, G., Townend, I., Olabarrieta, M., van der Wegen, M., Gong, Z., D'alpaos, A., Gao, S., Jaffe, B.E., Gelfenbaum, G., He, Q., Wang, Ya., Lanzoni, S., Wang, Z., Winterwerp, H., Shang, C., 2017, Is “Morphodynamic Equilibrium” an oxymoron?: Earth-Science Reviews, v. 165, p. 257-267, http://dx.doi.org/10.1016/j.earscirev.2016.12.002
Year Published: 2016
Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, February 2016
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity...
Stevens, Andrew; Gelfenbaum, Guy R.; Warrick, Jonathan; Miller, Ian M.; Weiner, Heather M.Attribution: Pacific Coastal and Marine Science Center
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Andrew W. Stevens, Guy Gelfenbaum, Jonathan A. Warrick, Ian M. Miller, and Heather M. Weiner, 2016, Bathymetry, topography, and sediment grain size from the February 2016 survey of the Elwha River delta, Washington: U.S. Geological Survey Data Release, http://dx.doi.org/10.5066/F7ZK5DTS
Year Published: 2016
Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, January 2015
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented...
Stevens, Andrew; Gelfenbaum, Guy R.; Warrick, Jonathan; Miller, Ian M.; Weiner, Heather M.Attribution: Pacific Coastal and Marine Science Center
View Citation
Stevens, A.W., Gelfenbaum, G., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2016, Bathymetry, topography, and sediment grain size data from the Elwha River delta, Washington, January 2015: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7T151TG
Year Published: 2016
Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, July 2015
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented...
Stevens, Andrew; Gelfenbaum, Guy R.; Warrick, Jonathan; Miller, Ian M.; Weiner, Heather M.Attribution: Pacific Coastal and Marine Science Center
View Citation
Stevens, A.W., Gelfenbaum, G., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2016, Bathymetry, topography, and sediment grain size data from the Elwha River delta, Washington, July 2015: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7S75DG9
Year Published: 2016
Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, July 2016
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented...
Stevens, Andrew; Gelfenbaum, Guy R.; Warrick, Jonathan; Miller, Ian M.; Weiner, Heather M.Attribution: Pacific Coastal and Marine Science Center
View Citation
Stevens, A.W., Gelfenbaum, G., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2016, Bathymetry, topography, and sediment grain size data from the Elwha River delta, Washington, July 2016: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7GQ6VXX
Year Published: 2016
Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, September 2014
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented...
Stevens, Andrew; Gelfenbaum, Guy R.; Warrick, Jonathan; Miller, Ian M.; Weiner, Heather M.Attribution: Pacific Coastal and Marine Science Center
View Citation
Stevens, A.W., Gelfenbaum, G., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2016, Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, September 2014: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7P55KN0
Year Published: 2016
Uncertainty in tsunami sediment transport modeling
Erosion and deposition from tsunamis record information about tsunami hydrodynamics and size that can be interpreted to improve tsunami hazard assessment. We explore sources and methods for quantifying uncertainty in tsunami sediment transport modeling. Uncertainty varies with tsunami, study site, available input data, sediment grain size, and...
Jaffe, Bruce E.; Goto, Kazuhisa; Sugawara, Daisuke; Gelfenbaum, Guy R.; La Selle, SeanPaul M.Attribution: Pacific Coastal and Marine Science Center
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Jaffe, B., Goto, K., Sugawara, D., Gelfenbaum, G., and La Selle, S., 2016, Uncertainty in Tsunami Sediment Transport Modeling: Journal of Disaster Research, v. 11 no. 4, pp. 647–661, doi: 10.20965/jdr.2016.p0647.
Year Published: 2016
Morphodynamics of prograding beaches: A synthesis of seasonal- to century-scale observations of the Columbia River littoral cell
Findings from nearly two decades of research focused on the Columbia River littoral cell (CRLC), a set of rapidly prograding coastal barriers and strand-plains in the U.S. Pacific Northwest, are synthesized to investigate the morphodynamics associated with prograding beaches. Due to a large sediment supply from the Columbia River, the CRLC is the...
Ruggiero, Peter; Kaminsky, George; Gelfenbaum, Guy R.; Cohn, NicholasAttribution: Pacific Coastal and Marine Science Center
Year Published: 2016
Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust
Current models used to assess earthquake and tsunami hazards are inadequate where creep dominates a subduction megathrust. Here we report geological evidence for large tsunamis, occurring on average every 300–340 years, near the source areas of the 1946 and 1957 Aleutian tsunamis. These areas bookend a postulated seismic gap over 200 km long...
Witter, Robert C.; Carver, G.A.; Briggs, Richard W.; Gelfenbaum, Guy R.; Koehler, R.D.; La Selle, SeanPaul M.; Bender, Adrian M.; Engelhart, S.E.; Hemphill-Haley, E.; Hill, Troy D.
Year Published: 2015
Coastal change from a massive sediment input: Dam removal, Elwha River, Washington, USA
The removal of two large dams on the Elwha River, Washington, provides an ideal opportunity to study coastal morphodynamics during increased sediment supply. The dam removal project exposed ~21 million cubic meters (~30 million tonnes) of sediment in the former reservoirs, and this sediment was allowed to erode by natural river processes. Elevated...
Warrick, Jonathan A.; Gelfenbaum, Guy R.; Stevens, Andrew W.; Miller, Ian M.; Kaminsky, George M.; Foley, Melissa M.Attribution: Pacific Coastal and Marine Science Center
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Warrick, J.A., Gelfenbaum, G., Stevens, A.W., Miller, I.M., Kaminsky, G.M., and Foley, M.M., 2015, Coastal Change from a Massive Sediment Input: Dam Removal, Elwha River, Washington, Usa: The Proceedings of the Coastal Sediments 2015, doi: 10.1142/9789814689977_0161.
Year Published: 2015
Tsunami recurrence in the eastern Alaska-Aleutian arc: A Holocene stratigraphic record from Chirikof Island, Alaska
Despite the role of the Alaska-Aleutian megathrust as the source of some of the largest earthquakes and tsunamis, the history of its pre–twentieth century tsunamis is largely unknown west of the rupture zone of the great (magnitude, M 9.2) 1964 earthquake. Stratigraphy in core transects at two boggy lowland sites on Chirikof Island’s...
Nelson, Alan R.; Briggs, Richard W.; Dura, Tina; Engelhart, Simon E.; Gelfenbaum, Guy; Bradley, Lee-Ann; Forman, S.L.; Vane, Christopher H.; Kelley, K.A.
Year Published: 2015
Large-scale dam removal on the Elwha River, Washington, USA: coastal geomorphic change
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of mud, sand, and gravel since 1927, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams, initiated in September 2011, induced massive increases in river sediment...
Gelfenbaum, Guy R.; Stevens, Andrew W.; Miller, Ian M.; Warrick, Jonathan A.; Ogston, Andrea S.; Eidam, EmilyAttribution: Pacific Coastal and Marine Science Center
View Citation
Gelfenbaum, G., Stevens, A., Miller, I., Warrick, J., Ogston, A., Eidem, E., 2015. Large-scale dam removal on the Elwha River, Washington, USA: Coastal geomorphic change. Geomorphology, doi:10.1016/j.geomorph.2015.01.002