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Joseph H Wlosinski

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The purpose of this report was to determine the feasibility of obtaining estimates of the concentrations of suspended solids in 1300 miles of the Upper Mississippi River System using remote sensing. The report includes: 1) a review of measured concentrations of suspended solids in different portions of the system. 2) a literature search of the spectral characteristics of suspended solids in water bodies in the laboratory and field and the use of remote sensing for qualitative and quantitative estimation of suspended solids in water bodies; and 3) the steps necessary to initiate a study to obtain estimates of error which would be needed because of the length and diversity of the Upper Mississippi River System.
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The effects of changing levee and water level management practices on present habitat types and amounts on the Upper Mississippi River floodplain at Pool 25 were predicted. The intent of the study was to investigate a broad range of plans that would provide coarse resolution information and the tools needed to study specific plans in the future. Two conditions were investigated for levees: the present levee system and all levees removed. Five water level management plans were studied: the present plan, two plans that would increase water levels, and two plans that would decrease water levels. The levee and water level management variables resulted in a total of ten unique management alternatives. Each was studied...
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The likelihood of 1- or 2-foot drawdowns, and the area affected by such alternative drawdowns, was estimated for Pool 13 on the Upper Mississippi River. Minimum water surface (elevation) requirements were compared to computed water surface profiles to determine a critical low flow that would allow a navigation channel 400 feet wide and 10.5 feet deep. An upper limit on flow was established based on the flow at which open river conditions would exist for a given drawdown. The range in flows that would allow for a drawdown was used to estimate success rates using historical daily discharge data. Success rates were determined for a variety of drawdown durations between two time periods, May 1 August 15 and June 15...
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This report contains annotations from more than 800 papers and reports describing the effects of water levels on ecosystem components, primarily in fresh waters. An index containing key words is included to facilitate the location of references on certain subjects. Key words are also grouped into general categories. The work was performed as part of the Upper Mississippi River System Long Term Resource Monitoring Program.
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