Scientific Investigations Report 2011–5041
Figure 19. (A) The fraction of water, bedrock, and gravel bars in each flood-plain kilometer transect in the Umpqua and South Umpqua Rivers, Oregon, as mapped from 2005 aerial photographs. Downstream of FPKM 25 in the Tidal reach, channel area increases substantially in the lower Umpqua River estuary. (B) Flood-plain width by flood-plain kilometer. |
First posted September 29, 2011 For additional information contact: Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |
U.S. Department of the Interior |
U.S. Geological Survey
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