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Downward Trend in Mississippi River Suspended-Sediment Loads: Potamology Program (P-1)

Jr. Dardeau, Causey Elba A., M. Etta

Abstract

Abstract : This investigation was Phase III of a three-phase study of the sediment regime of the Mississippi River Basin. Phase I resulted in the publication of inventory of Sediment Sample Collection Stations in the Mississippi River Basin. The Phase II study identified a downward trend in Mississippi River suspended-sediment loads that apparently began around the middle of the 20th century. The current study deals with suspended-sediment sampling, analysis, and load-computation procedures used at key stations on major streams in the Mississippi River Basin and the possible influence of these procedures on the downward trend. Keywords: Suspended sediments; Flood control; Rivers/capacity quantity; Sediment transport; Sediments/sampling/analyzers.

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Key concepts: Sediment, Hydrology (agriculture), Environmental science, Oceanography, Geology, Geotechnical engineering, Geomorphology