Great Lakes Environmental Research Laboratory (Continued) 
Lake Erie Regional Ice Cover Analysis: Preliminary Results 
Assel, Raymond A., NOAA Tech. Memo. ERL GLERL-48 
Publication Date: July 1983 
Location: Lake Erie 
Period of Coverage: 1960-1979 
Contents: A 20-year digital ice concentration data set was divided into nine 
half-month periods, starting with the last half of December and ending in the 
last half of April. Observation density, average regional ice cover, and 
percentage of ice cover exceedance were calculated for three regions of the 
lake: the entire lake, the lake east of Long Point, Ont., and the lake east 
of Port Colborne, Ont. Results of the analysis are presented in tables and 
graphs of percentage of region observed, average ice cover, and percentage 
exceedance from average ice cover. Seasonal and regional trends in ice cover 
extent are discussed. 
Available From: Information Service 
Great Lakes Environmental Research Laboratory 
National Oceanic and Atmospheric Administration 
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