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Scientific Investigations Report 2010–5065

Channel Change and Bed-Material Transport in the Lower Chetco River, Oregon

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Figure 36. Bar thickness values used to calculate erosion and deposition volumes from changes in bar area in the Chetco River, Oregon. Values determined by difference of average bar elevation and thalweg elevation at 30-m intervals along the flood-plain centerline, and averaged for each reach. “All bars” include all bars mapped from 2008 LIDAR topography. “New bars” are bars that formed between 2005 and 2008, are typically lower, and are inferred to represent the thickness of new deposits.

Revised July 2012

First posted May 26, 2010

For additional information contact:
Oregon Water Science Center, Director
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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