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Title: Bed material sizes, variability, and trends in the Lower Mississippi River and their significance to calculated bed material loads
Authors: Thorne, C. R. (Colin R.)
Biedenharn, David S.
Little, Charles D., 1946-
Wofford, Koby.
McCullough, Troy.
Watson, Chester C.
Keywords: Bed load--Measurement
Mississippi River
Particle size determination
Sedimentation analysis
Sedimentation and deposition
Stream measurements
Publisher: United States. Army. Corps of Engineers. Lower Mississippi Valley Division.
United States. Mississippi River Commission.
Coastal and Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: MRG&P;Report No. 16
Abstract: This report compiles and makes readily available data and supporting information contained in past U.S. Army Corps of Engineers reports on the sizes and size distributions of sediment forming the bed of the Lower Mississippi River. Based on these sources, the report establishes how particle size distributions and the widely used, statistically representative sizes (D50, D16, and D84) of the bed material vary with distance downstream and through time. Preliminary analyses are performed to identify downstream and time trends in bed material characteristics at a variety of scales, and establish the sensitivity of bed material transport rates and annual loads calculated using the Hydraulic Engineering Center-River Analysis System/Sediment Impact Analysis Method (HEC-RAS/SIAM), to local and short-term variability in bed sediment characteristics. The report closes by considering the overall conclusions and wider applications of its findings.
Appears in Collections:MRG&P Report

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