Hales, G., A. Hilton, S. McBain, and S. Howlin. 2020. Statistical evaluation of Trinity River point bar bed mobility and bed scour during annual spring ROD releases for WY 2009 - 2013. Report for the Trinity River Restoration Program (TRRP). McBain Associates, Arcata, California. Available: www.trrp.net/library/document?id=2463.
Bed mobility and scour are fundamental TRRP objectives for physical processes. Field-based monitoring of bed mobility and scour accurately documents bar response to annual flows, allowing comparisons with physical process management objectives in the ROD (i.e., were Trinity River Flow Evaluation bed mobility and scour objectives met in any particular water year by winter flood or ROD releases?). However, field monitoring requires annual resources and does not provide a quantitative prediction of bar mobility and scour response to various flows. Recently improved 2-D hydraulic models can be used to provide deterministic predictions of bar response, but historic application of these models has shown modest performance, and results are specific to every bar due to unique hydraulic conditions.
First Posted: 2020-02-25 17:54:49
Post Updated: 2020-02-25 18:05:23