120 resultados para Lake Michigan
em University of Michigan
Resumo:
"July 1979."
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"January 1981."
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"Grant No. 802647."
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Mode of access: Internet.
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"December 1987."
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Cover title.
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Thesis (Ph.D.) - University of Chicago.
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"October 1975."
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"January 1976."
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Shorelines tend to retreat landward as water levels rise. Less than 20 percent of the shore, lost as Lake Michigan rose between 1967 and 1976, was due to direct inundation; the remaining 80 percent was due to increased erosion in response to the higher lake levels. A simple correlation of lake level change and simultaneous shore retreat ignores the inevitable lag between process and response, but still accounts for 50 percent of the variance in shore retreat. A graphic summary of field data is presented to estimate effects of future lake level changes in similar coastal environments. Qualitative guidance is provided on how and when these estimates should be adjusted to reflect differences in environmental settings. Complete adjustment of the shore will be underestimated by the empirical relationship; but where lake levels change constantly, there will be many such instances of incomplete shore response. (Author).
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"October 1976."
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"Supplement. 2d session, Reconvened, Aug. 26, 1969."
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Cover title: Progress evaluation meeting in the matter of pollution of the interstate waters of the Grand Calumet River...
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Mode of access: Internet.
Resumo:
"January 3, 1963."