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