Data Set ID:
G00805

Great Lakes Surface Ice Reports from U.S. Coast Guard, Version 1

Data consist of ice observations from U.S. Coast Guard vessels operating on the Great Lakes and from Coast Guard shore stations reported via teletype messages and ice logging forms. Observations include ice thickness and concentration, weather conditions, and ice breaking activity. Data from 1961/1962 through 1966/1967 have been processed to a standard format and sorted by year and stations, and are available via FTP as ASCII files, one for each of the five lakes.

This is the most recent version of these data.

Parameter(s):
  • Snow/Ice > Ice Depth/Thickness > ICE DEPTH/THICKNESS
  • Snow/Ice > Lake Ice > Lake Ice Concentration
  • Atmospheric Temperature > Maximum/Minimum Temperature > MAXIMUM/MINIMUM TEMPERATURE
Data Format(s):
  • ASCII Text
Spatial Coverage:
N: 49, 
S: 41, 
E: -76, 
W: -93
Platform(s):GROUND STATIONS, SHIPS
Spatial Resolution:
  • Varies
Sensor(s):VISUAL OBSERVATIONS
Temporal Coverage:
  • 10 November 1961 to 31 December 2004
Version(s):V1
Temporal ResolutionVariesMetadata XML:View Metadata Record
Data Contributor(s):National Snow and Ice Data Center (comp.).

Geographic Coverage

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FTP data can be downloaded through a Web browser or command line via FTP. For help downloading data through an FTP client, go to the How to access data using an FTP client support page.

As a condition of using these 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 and Ice Data Center (comp.). 1995. Great Lakes Surface Ice Reports from U.S. Coast Guard, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: https://doi.org/10.7265/N5BG2KW2. [Date Accessed].

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