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Observed Changes in Great Lakes Ice Cover: Seasonal Maximum Coverage, 1973 to 2008
Reductions in winter ice cover lead to more evaporation, causing lake levels to drop even farther. While the graph indicates large year-to-year variations, there is a clear decrease in the extent of Great Lakes ice coverage, as shown by the black trend line. Image Source: updated from Assel1
References
- 1. [414] Assel, R. A.. An Electronic Atlas of Great Lakes Ice Cover, Winters: 1973-2002. Ann Arbor, MI: NOAA Great Lakes Environmental Research Laboratory, 2003.
Summary
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