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Spatial and temporal aspects of the lake effect on the southern shore of Lake Superior |
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| Authors: | Kenneth M Hinkel Frederick E Nelson |
| Institution: | 1. Department of Geography, University of Cincinnati, Cincinnati, OH, 45221-0131, USA 2. American Geographical Society Library, University of Wisconsin, Milwaukee, WI, 53201, USA 3. Department of Geography, University of Delaware, Newark, DE, USA, 19716 |
| Abstract: | A climate-monitoring network was implemented in a large private preserve along the southern shore of Lake Superior. The network uses a dense sampling design to assess the spatial and temporal influence of a large, cold body of water on adjacent terrestrial surfaces. Based on a 3-year record, near-shore sites are 1–2°C cooler than sites 5?km inland in spring and summer, and 1°C warmer in winter. Near the shore, winds are from the NNW most of the year, and are much stronger in winter. Inland, southwesterly flow is typical and overall wind velocity is lower and more consistent. This decoupling is attributable to the influence of the Huron Mountains, a topographic barrier that restricts the lake effect to a narrow coastal zone. A 2-year record of hourly air temperature measurements from 26–30 sites across the study area demonstrates that the mean daily temperature can differ by as much as 11°C, but the average difference is 2.5–3.0°C. |
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