Data collected by citizen scientists on small inland lakes
was incorporated by researchers at the Trout Lake Research Station into a
recent scientific article published by the American Geophysical Union
(Geophysical Research Letters). Researchers report that water levels in lakes
across the Great Lakes Region, including those within the North Lakeland
Discovery Center’s lake level monitoring program, have a historical up and down
oscillation of approximately 13 years. This pattern is controlled by
precipitation and evaporation which are connected to large-scale atmospheric
circulation patterns originating in the mid-latitude North Pacific that support
moisture coming into the region from the Gulf of Mexico. In 1998, a downward
trend in lake levels began, indicating a change in the historic 13-year pattern
which may signal a new hydro-climatic regime.
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| Anne Kretschmann and Al Drum from the Discovery Center's monitoring Program putting in a monitoring gauge |
For more information on the Great Lakes water levels article follow the links below:
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