Great Lakes Ice Cover Data - Ice Year 2021

Ice Year 2021 ArcGIS shapefiles - gis2021.zip (86 MB)
Ice Year 2021 ASCII files - grid2021.zip (1.1 MB)
Ice Year 2021 Graphic image files - jpg2021.zip (1.9 MB)

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(click on thumbnails for larger jpeg images)

GLERL digital ice chart for Nov 22, 2020
Nov 22, 2020
GLERL digital ice chart for Nov 23, 2020
Nov 23, 2020
GLERL digital ice chart for Nov 24, 2020
Nov 24, 2020
GLERL digital ice chart for Nov 25, 2020
Nov 25, 2020
GLERL digital ice chart for Nov 26, 2020
Nov 26, 2020
GLERL digital ice chart for Nov 27, 2020
Nov 27, 2020
GLERL digital ice chart for Nov 28, 2020
Nov 28, 2020
GLERL digital ice chart for Nov 29, 2020
Nov 29, 2020
GLERL digital ice chart for Nov 30, 2020
Nov 30, 2020
GLERL digital ice chart for Dec 01, 2020
Dec 01, 2020
GLERL digital ice chart for Dec 02, 2020
Dec 02, 2020
GLERL digital ice chart for Dec 03, 2020
Dec 03, 2020
GLERL digital ice chart for Dec 04, 2020
Dec 04, 2020
GLERL digital ice chart for Dec 05, 2020
Dec 05, 2020
GLERL digital ice chart for Dec 06, 2020
Dec 06, 2020
GLERL digital ice chart for Dec 07, 2020
Dec 07, 2020
GLERL digital ice chart for Dec 08, 2020
Dec 08, 2020
GLERL digital ice chart for Dec 09, 2020
Dec 09, 2020
GLERL digital ice chart for Dec 10, 2020
Dec 10, 2020
GLERL digital ice chart for Dec 11, 2020
Dec 11, 2020
GLERL digital ice chart for Dec 12, 2020
Dec 12, 2020
GLERL digital ice chart for Dec 13, 2020
Dec 13, 2020
GLERL digital ice chart for Dec 14, 2020
Dec 14, 2020
GLERL digital ice chart for Dec 15, 2020
Dec 15, 2020
GLERL digital ice chart for Dec 16, 2020
Dec 16, 2020
GLERL digital ice chart for Dec 17, 2020
Dec 17, 2020
GLERL digital ice chart for Dec 18, 2020
Dec 18, 2020
GLERL digital ice chart for Dec 19, 2020
Dec 19, 2020
GLERL digital ice chart for Dec 20, 2020
Dec 20, 2020
GLERL digital ice chart for Dec 21, 2020
Dec 21, 2020
GLERL digital ice chart for Dec 22, 2020
Dec 22, 2020
GLERL digital ice chart for Dec 23, 2020
Dec 23, 2020
GLERL digital ice chart for Dec 24, 2020
Dec 24, 2020
GLERL digital ice chart for Dec 25, 2020
Dec 25, 2020
GLERL digital ice chart for Dec 26, 2020
Dec 26, 2020
GLERL digital ice chart for Dec 27, 2020
Dec 27, 2020
GLERL digital ice chart for Dec 28, 2020
Dec 28, 2020
GLERL digital ice chart for Dec 29, 2020
Dec 29, 2020
GLERL digital ice chart for Dec 30, 2020
Dec 30, 2020
GLERL digital ice chart for Dec 31, 2020
Dec 31, 2020
GLERL digital ice chart for Jan 01, 2021
Jan 01, 2021
GLERL digital ice chart for Jan 02, 2021
Jan 02, 2021
GLERL digital ice chart for Jan 03, 2021
Jan 03, 2021
GLERL digital ice chart for Jan 04, 2021
Jan 04, 2021
GLERL digital ice chart for Jan 05, 2021
Jan 05, 2021
GLERL digital ice chart for Jan 06, 2021
Jan 06, 2021
GLERL digital ice chart for Jan 07, 2021
Jan 07, 2021
GLERL digital ice chart for Jan 08, 2021
Jan 08, 2021
GLERL digital ice chart for Jan 09, 2021
Jan 09, 2021
GLERL digital ice chart for Jan 10, 2021
Jan 10, 2021
GLERL digital ice chart for Jan 11, 2021
Jan 11, 2021
GLERL digital ice chart for Jan 12, 2021
Jan 12, 2021
GLERL digital ice chart for Jan 13, 2021
Jan 13, 2021
GLERL digital ice chart for Jan 14, 2021
Jan 14, 2021