Figure 10. Spatial and temporal variation in gravel bar area for eight time periods, Chetco River, Oregon, 1939–2008. Bar extensions in lighter shades represent values normalized to a discharge of 2.8 cubic meters per second (m³/s). (A) Bar area aggregated by 2-kilometer lengths of flood-plain. No data for 1939 upstream from flood-plain kilometer 13. (B) Bar area for total study reach.

Revised July 2012

First posted May 26, 2010