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General Information
GPS or Global Positioning System refers
to technology that utilizes satellites to determine the location of points
on the earth's surface. In 2001, our department purchased a Trimble
GPS unit that not only measures latitude and longitude, but also
calculates the elevation with sub-centimeter accuracy. This is an
extremely accurate and useful tool for many applications within our
department. Large topographic surveys can now be completed in
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a single day. Completing
such surveys with conventional surveying equipment may have taken a week.
Use of GPS Unit Since
purchasing the Trimble GPS unit in 2001, our department has used it to
complete several large surveys and projects. Listed below are several
examples of what has been accomplished with this technology:
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Survey of Terrell's Island
Vegetation.
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Bathymetric Survey on Rush
Lake.
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Survey of Lone Willow
Island Marsh breakwall.
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Shoreline and Streambank
Erosion Survey in Pool Lakes.
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Culvert Surveys in Neenah,
Clayton, and Black Wolf Townships.
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