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Data Set ID:

Great Lakes Ice Charts, Version 1

Charts show ice extent and concentration three times weekly during the ice season, for all lakes except Ontario, from the 1973/74 ice season through the 2001/2002 ice season. Most charts are annotated to indicate data sources. Straits of Mackinac, Green Bay and Sault Ste. Marie are enlarged as insets, and in some cases, provided as separate charts. From 1973/74 through 1986/87, charts were prepared by the National Weather Service Forecast Office, Ann Arbor, Michigan. Beginning with the 1987/88 season, the National Ice Center (formerly known as the Navy/NOAA Joint Ice Center) in Suitland, Maryland prepared the charts. Charts are available as GIF files.

Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: 49, S: 41, E: -79, W: -93

Spatial Resolution:
Not Specified
Temporal Coverage
  • 1973-12-01
Temporal Resolution:
Not specified
  • Snow/Ice > Ice Extent
  • Snow/Ice > Lake Ice
  • Snow/Ice > River Ice
Not specified
Sensor(s): Not specified
Data Format(s):
  • GIF
Data Contributor(s): National Snow & Ice Data Center, (comp.).

Data Citation

As a condition of using this data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

National Snow & Ice Data Center, (comp.). 2004. Great Lakes Ice Charts, Version 1. [indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA