Trophic State of LaFarge Reservoir

by John R. Kiefer, Staff Engrg.; Woodward-Clyde Consultants, San Francisco, Calif.,

Serial Information: Journal of the Environmental Engineering Division, 1979, Vol. 105, Issue 6, Pg. 1095-1103

Document Type: Journal Paper

Abstract: A review is presented of three different methods used in analyzing the eutrophication potential of the Lake LaFarge Reservoir in Wisconsin. The trophic models examined include two computer models and one empirical model. The assumptions used in each model are described and the results of each modeling effort presented. While all three of the models ultimately conclude that the reservoir would be eutrophic, the level of eutrophication predicted varied from one model to another. Because of the cost of running the computer models, it was concluded that the empirical model was most cost-effective in instances where the modeler only needs to know whether eutrophication will or will not occur. However, in cases where a relatively accurate estimate of the level of eutrophication is needed, the expense of using the more accurate of the two computer models is probably warranted.

Subject Headings: Computer models | Reservoirs | Eutrophication | Model accuracy | Hydrologic models | Empirical equations | Financial management | Lakes | Wisconsin | North America | United States

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