Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

McAnally, William H.

Committee Member

Martin, James L.

Committee Member

Diaz-Ramirez, Jairo N.

Date of Degree

12-14-2013

Document Type

Graduate Thesis - Open Access

Major

Civil Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Department of Civil and Environmental Engineering

Abstract

Sediment transport measurements are determined using techniques such as bedmaterial and suspended-sediment sampling, and more recently the conversion of acoustic backscatter (ABS). Acoustic waves scatter and attenuate while passing through a watersediment mixture and the backscatter is converted to sediment concentration, size, and shape. A multiple case study performed using data from West Bay, Old River, and Mississippi River at Vicksburg show the variability of a large river system TSM flux during assorted hydrographs and two methods (CHL and moving boat) capture the events. After processing and applying the two methods the results showed that the methods are typically within 8% to 41% of each other when computing sediment flux. The conversion of total suspended material (TSM) from ABS was an average of 0.2% to 69% from the sample TSM. Peak part of the hydrograph had the highest average suspended sediment concentration (SSC) and descending had the lowest average SSC.

URI

https://hdl.handle.net/11668/18888

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