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Great Lakes Data Support Files

These support files are based off the Great Lakes daily analysis that include GIS files (Shapefile and KMZ), ASCII, and GRIB files. The files contain ice condition information that allow users bring into various platforms.

Area
Description
Display / Format

Thumbnail image of the Great Lakes denoting
             GIS and KMZ files
Great Lakes GIS Shapefile and KMZ file

The Great Lakes GIS shapefile and KMZ file are created off the NAIS daily Great Lakes ice analysis. The files contain SIGRID-3 information on ice conditions that are separated into total ice concentration, ice types with their respective concentrations, and ice floe size.


Thumbnail image of the Great Lakes denoting
             ASCII files
Great Lakes ASCII files

The Great Lakes ASCII files are created off the NAIS daily Great Lakes ice analysis. There are multiple ASCII files containing gridded data separated into ice concentration and different resolutions (in meters): 1275, 1800, 2550


Thumbnail image of the Great Lakes denoting
             GRIB files
Great Lakes GRIB Formatted File

The Great Lakes GRIB file is created off the NAIS daily Great Lakes ice analysis.

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GRIB File
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