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post #14 of Old 02-08-2013
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Re: Low Water

"Glacial isostatic adjustment (the uneven shifts of the earth’s crust since the last period of continental glaciations ended) accounts for about 4 to 5 cm (1.6 to 2.0 inches) of the fall"-

While it has been a few decades since my geology days, I seem to recall that Isostatic adjustment has to do with the depth of the lake and not water levels. At one point it was given as a reason for rising water levels in Erie.
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