Western Coastal and Marine Geology

U.S. Geological Survey
Data Series 288
Version 1.1

Beach Morphology Monitoring in the Elwha River Littoral Cell, 2004–2009

By Jonathan A. Warrick, Douglas A. George, Andrew W. Stevens, Jodi Eshleman, Guy Gelfenbaum, George M. Kaminsky, Andrew K. Schwartz, and Matt Beirne

2007, revised 2010

photo of scientist on Personal Watercraft (PWC) just offshore; the sky is filled with gulls

Summary

This report describes the methods used, data collected, and results of the Beach Morphology Monitoring Program in the Elwha River Littoral Cell, starting in 2004. The U.S. Geological Survey and the Washington State Department of Ecology collaborated in the data collection with the support of the local Lower Elwha Klallam Tribe. Beach monitoring efforts consisted of collecting topographic and bathymetric horizontal and vertical position data by using a Real Time Kinematic Differential Global Positioning System (RTK-DGPS). The monitoring program was designed to characterize the littoral system of the Elwha River before the scheduled removal of two large dams in 2012. A primary objective of this work is to quantitatively describe the topography and bathymetry of the Elwha River littoral system so that the effects of dam removal may be quantified. Sediment inputs following dam removal are hypothesized to result in (A) larger amounts of fine sediment grain-sizes entering the littoral system and, (B) a reduction or reversal of coastal erosion.

Download this paper as a 64-page PDF (ds288_v1.1.pdf; 20.1 MB).

Go to the data folder (data; 1,851 items, 81.2 MB total). This folder also contains zipped versions of the subfolders for easier downloading.

Go to the metadata folder where the information is given in five formats (html, FAQs as html, ASCII .txt, ASCII .met, and .xml) (metadata; 5 items, 192 kB total).

Also of Interest

USGS Data Series 320, Sea-Floor Mapping and Benthic Habitat GIS for the Elwha River Delta Nearshore, Washington, by Guy R. Cochrane, Jonathan Warrick, Yael Sagy, David Finlayson, and Jodi Harney (2008)

For questions about the content of this report, contact Jonathan Warrick

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