Large-Scale Dam Removal on the Elwha River, Washington, USA: Source-To-Sink Sediment Budget and Synthesis
Geomorphology 246 (2015) 729–750 Contents lists available at ScienceDirect Geomorphology journal homepage: www.elsevier.com/locate/geomorph Large-scale dam removal on the Elwha River, Washington, USA: Source-to-sink sediment budget and synthesis Jonathan A. Warrick a,⁎, Jennifer A. Bountry b, Amy E. East a, Christopher S. Magirl c, Timothy J. Randle b, Guy Gelfenbaum a, Andrew C. Ritchie d,GeorgeR.Pesse, Vivian Leung f, Jeffrey J. Duda g a U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, USA b Bureau of Reclamation, Sedimentation and River Hydraulics Group, Denver, CO, USA c U.S. Geological Survey, Washington Water Science Center, Tacoma, WA, USA d National Park Service, Olympic National Park, Port Angeles, WA, USA e National Oceanic and Atmospheric Administration, Northwest Fisheries Science Center, Seattle, WA, USA f University of Washington, Department of Earth & Space Sciences, Seattle, WA, USA g U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA, USA article info abstract Article history: Understanding landscape responses to sediment supply changes constitutes a fundamental part of many problems Received 7 August 2014 in geomorphology, but opportunities to study such processes at field scales are rare. The phased removal of two large Received in revised form 13 January 2015 dams on the Elwha River, Washington, exposed 21 ± 3 million m3, or ~30 million tonnes (t), of sediment that had Accepted 15 January 2015 been deposited in the two former reservoirs, allowing a comprehensive investigation
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