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Bhowmik, N. G. (1993). Physical changes due to navigation in the Upper Mississippi River system. Long term resource monitoring program. USGS Environmental Management Technical Center, Report EMTC93R019.
The Mississippi, Illinois, Ohio, and Missouri Rivers are used extensively for the transport of goods and commodities, as well as for recreational activities. The changes in the river environment resulting from the movement of such traffic may include creation of waves and drawdown, altered velocity and pressure regimes, resuspension and lateral movement of sediment, and temporary changes in flow direction due to the return flow. Research has been initiated to determine the physical changes associated with navigation within the Illinois and Mississippi Rivers. Field data on various hydraulic and sediment resuspension characteristics have been collected and analyzed to determine functional relationships. These physical relationships will be used in the biological models to identify and determine changes in the aquatic environment due to navigation traffic. The paper discusses some of the physical changes in a large river environment due to navigation traffic. Biological effects of navigation are given in a companion paper that follows this article.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/bhowmik2.html
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