Daily Ice Cover Time Series (30 years)
Introduction | Animations | Daily Grids | Daily Images | Daily Lake & River Averages
Daily Great Lakes ice cover grid time series were created for each winter season by interpolating between observed ice chart grids for each winter season.
The time series for each winter always begins Dec 1, and is 182 days,
so it ends May 31 on non-leap years and May 30th on leap years.
1. Computer Animations
- animations portraying temporal changes in spatial patterns of ice cover
over a winter season.
2. Daily Grids - ASCII formatted, 510 x 516 grid cells of ice concentrations for each day of each winter season, 1973 - 2002.
3. Daily Images -
individual images of ice concentration spatial patterns for each day of
of each winter, 1973 - 2002.
4. Daily Lake and River Averages - spatial averages of ice cover for each Great Lake, for the combined area of all 5 Great Lakes, for the St. Marys River, and for the Detroit River.
Introduction | Original
Ice Charts | First Ice,
Last Ice & Ice Duration | Daily
Ice Cover Time Series
Weekly Ice Cover Statistics
| Contact
US Department of Commerce
| NOAA | OAR
| GLERL
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