GREAT LAKES ICE ATLAS
A series of 33 charts is presented to illustrate the ice cover on the Great Lakes for three classifications of winter; mild, normal and severe. Six ice charts are provided for each of the Great Lakes. Two charts show the maximum extent of ice cover during a mild and a severe winter and four charts are classified as normal. The percent of lake surface that can be expected to become ice covered during a normal winter is: 60 percent Superior, 40 percent Michigan, 60 percent Huron, 98 percent Erie, and 15 percent Ontario. Mid-winter ice thicknesses can range from 36 in. (91 cm) along the north shore of Lake Superior to 4 in. (10 cm) during a mild winter on the lower lakes. (Author)
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Corporate Authors:
Lake Survey Center
Detroit, MI United States -
Authors:
- Rondy, D R
- Publication Date: 1971-9
Media Info
- Pagination: 52 p.
Subject/Index Terms
- TRT Terms: Ice; Lake ice; Nautical charts; Operations
- Geographic Terms: Great Lakes
- Old TRIS Terms: Ice charts; Ice reporting
- Subject Areas: Administration and Management; Marine Transportation;
Filing Info
- Accession Number: 00028957
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NOAA-TM-NOS-LSCR-1 Tech Memo
- Files: TRIS
- Created Date: Apr 10 1972 12:00AM