Numerical Modeling of Groundwater-Lake Systems

by Mary P. Anderson, Univ of Wisconsin-Madison, Dep of, Geology & Geophysics, Madison, WI, USA,

Document Type: Proceeding Paper

Part of: Computer Applications in Water Resources


Groundwater inflows can have important effects on the chemistry and biology of a lake ecosystem. For example, studies of lakes in Northern Wisconsin documented localization of ferromanganese nodules around high groundwater discharge zones and demonstrated a relationship between goundwater inflows and macrophyte occurences. It has also been suggested that groundwater inflows to Lake Michigan may, in part, control the location of historic trout spawning grounds. Furthermore, if contaminated by septic system discharge, groundwater may be an important source of nutrients to a lake. In this paper, examples of numerical modeling applications are discussed in order to illustrate the utility of models in lake studies.

Subject Headings: Numerical models | Groundwater | Lakes | Inflow | Water discharge | Computer models | Hydraulic models | Numerical analysis | Wisconsin | United States | Lake Michigan | Great Lakes

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