Great Lakes Ice Cover Data - Ice Year 2011

Ice Year 2011 ArcGIS shapefiles - gis2011.zip (400 MB)
Ice Year 2011 ASCII files - grid2011.zip (3.455 MB)
Ice Year 2011 Graphic ice chart images - jpg2011.zip (25.5 MB)

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(click on thumbnails for larger jpeg images)

GLERL digital ice chart for Dec 2 2010
Dec 2, 2010
GLERL digital ice chart for Dec 7 2010
Dec 7, 2010
GLERL digital ice chart for Dec 9 2010
Dec 9, 2010
GLERL digital ice chart for Dec 14 2010
Dec 14, 2010
GLERL digital ice chart for Dec 16 2010
Dec 16, 2010
GLERL digital ice chart for Dec 17 2010
Dec 17, 2010
GLERL digital ice chart for Dec 18 2010
Dec 18, 2010
GLERL digital ice chart for Dec 19 2010
Dec 19, 2010
GLERL digital ice chart for Dec 20 2010
Dec 20, 2010
GLERL digital ice chart for Dec 21 2010
Dec 21, 2010
GLERL digital ice chart for Dec 22 2010
Dec 22, 2010
GLERL digital ice chart for Dec 23 2010
Dec 23, 2010
GLERL digital ice chart for Dec 24 2010
Dec 24, 2010
GLERL digital ice chart for Dec 25 2010
Dec 25, 2010
GLERL digital ice chart for Dec 26 2010
Dec 26, 2010
GLERL digital ice chart for Dec 27 2010
Dec 27, 2010
GLERL digital ice chart for Dec 28 2010
Dec 28, 2010
GLERL digital ice chart for Dec 29 2010
Dec 29, 2010
GLERL digital ice chart for Dec 30 2010
Dec 30, 2010
GLERL digital ice chart for Dec 31 2010
Dec 31, 2010
GLERL digital ice chart for Jan 1 2011
Jan 1, 2011
GLERL digital ice chart for Jan 2 2011
Jan 2, 2011
GLERL digital ice chart for Jan 3 2011
Jan 3, 2011
GLERL digital ice chart for Jan 4 2011
Jan 4, 2011
GLERL digital ice chart for Jan 5 2011
Jan 5, 2011
GLERL digital ice chart for Jan 6 2011
Jan 6, 2011
GLERL digital ice chart for Jan 7 2011
Jan 7, 2011
GLERL digital ice chart for Jan 8 2011
Jan 8, 2011
GLERL digital ice chart for Jan 9 2011
Jan 9, 2011
GLERL digital ice chart for Jan 10 2011
Jan 10, 2011
GLERL digital ice chart for Jan 11 2011
Jan 11, 2011
GLERL digital ice chart for Jan 12 2011
Jan 12, 2011
GLERL digital ice chart for Jan 13 2011
Jan 13, 2011
GLERL digital ice chart for Jan 14 2011
Jan 14, 2011
GLERL digital ice chart for Jan 15 2011
Jan 15, 2011
GLERL digital ice chart for Jan 16 2011
Jan 16, 2011
GLERL digital ice chart for Jan 17 2011
Jan 17, 2011
GLERL digital ice chart for Jan 18 2011
Jan 18, 2011
GLERL digital ice chart for Jan 19 2011
Jan 19, 2011
GLERL digital ice chart for Jan 20 2011
Jan 20, 2011
GLERL digital ice chart for Jan 21 2011
Jan 21, 2011
GLERL digital ice chart for Jan 22 2011
Jan 22, 2011
GLERL digital ice chart for Jan 23 2011
Jan 23, 2011
GLERL digital ice chart for Jan 24 2011
Jan 24, 2011
GLERL digital ice chart for Jan 25 2011
Jan 25, 2011
GLERL digital ice chart for Jan 26 2011
Jan 26, 2011
GLERL digital ice chart for Jan 27 2011
Jan 27, 2011
GLERL digital ice chart for Jan 28 2011
Jan 28, 2011
GLERL digital ice chart for Jan 29 2011
Jan 29, 2011
GLERL digital ice chart for Jan 30 2011
Jan 30, 2011
GLERL digital ice chart for Jan 31 2011
Jan 31, 2011
GLERL digital ice chart for Feb 1 2011
Feb 1, 2011
GLERL digital ice chart for Feb 2 2011
Feb 2, 2011
GLERL digital ice chart for Feb 3 2011
Feb 3, 2011
GLERL digital ice chart for Feb 4 2011
Feb 4, 2011
GLERL digital ice chart for Feb 5 2011
Feb 5, 2011
GLERL digital ice chart for Feb 6 2011
Feb 6, 2011
GLERL digital ice chart for Feb 7 2011
Feb 7, 2011
GLERL digital ice chart for Feb 8 2011
Feb 8, 2011
GLERL digital ice chart for Feb 9 2011
Feb 9, 2011
GLERL digital ice chart for Feb 10 2011
Feb 10, 2011
GLERL digital ice chart for Feb 11 2011
Feb 11, 2011
GLERL digital ice chart for Feb 12 2011
Feb 12, 2011
GLERL digital ice chart for Feb 13 2011
Feb 13, 2011
GLERL digital ice chart for Feb 14 2011
Feb 14, 2011
GLERL digital ice chart for Feb 15 2011
Feb 15, 2011
GLERL digital ice chart for Feb 16 2011
Feb 16, 2011
GLERL digital ice chart for Feb 17 2011
Feb 17, 2011
GLERL digital ice chart for Feb 18 2011
Feb 18, 2011
GLERL digital ice chart for Feb 19 2011
Feb 19, 2011
GLERL digital ice chart for Feb 20 2011
Feb 20, 2011
GLERL digital ice chart for Feb 21 2011
Feb 21, 2011
GLERL digital ice chart for Feb 22 2011
Feb 22, 2011
GLERL digital ice chart for Feb 23 2011
Feb 23, 2011
GLERL digital ice chart for Feb 24 2011
Feb 24, 2011
GLERL digital ice chart for Feb 25 2011
Feb 25, 2011
GLERL digital ice chart for Feb 26 2011
Feb 26, 2011
GLERL digital ice chart for Feb 27 2011
Feb 27, 2011
GLERL digital ice chart for Feb 28 2011
Feb 28, 2011
GLERL digital ice chart for Mar 1 2011
Mar 1, 2011
GLERL digital ice chart for Mar 2 2011
Mar 2, 2011
GLERL digital ice chart for Mar 3 2011
Mar 3, 2011
GLERL digital ice chart for Mar 4 2011
Mar 4, 2011
GLERL digital ice chart for Mar 5 2011
Mar 5, 2011
GLERL digital ice chart for Mar 6 2011
Mar 6, 2011
GLERL digital ice chart for Mar 7 2011
Mar 7, 2011
GLERL digital ice chart for Mar 8 2011
Mar 8, 2011
GLERL digital ice chart for Mar 9 2011
Mar 9, 2011
GLERL digital ice chart for Mar 10 2011
Mar 10, 2011
GLERL digital ice chart for Mar 11 2011
Mar 11, 2011
GLERL digital ice chart for Mar 12 2011
Mar 12, 2011
GLERL digital ice chart for Mar 13 2011
Mar 13, 2011
GLERL digital ice chart for Mar 14 2011
Mar 14, 2011
GLERL digital ice chart for Mar 15 2011
Mar 15, 2011
GLERL digital ice chart for Mar 16 2011
Mar 16, 2011
GLERL digital ice chart for Mar 17 2011
Mar 17, 2011
GLERL digital ice chart for Mar 18 2011
Mar 18, 2011
GLERL digital ice chart for Mar 19 2011
Mar 19, 2011
GLERL digital ice chart for Mar 20 2011
Mar 20, 2011
GLERL digital ice chart for Mar 21 2011
Mar 21, 2011
GLERL digital ice chart for Mar 22 2011
Mar 22, 2011
GLERL digital ice chart for Mar 23 2011
Mar 23, 2011
GLERL digital ice chart for Mar 24 2011
Mar 24, 2011
GLERL digital ice chart for Mar 25 2011
Mar 25, 2011
GLERL digital ice chart for Mar 26 2011
Mar 26, 2011
GLERL digital ice chart for Mar 27 2011
Mar 27, 2011
GLERL digital ice chart for Mar 28 2011
Mar 28, 2011
GLERL digital ice chart for Mar 29 2011
Mar 29, 2011
GLERL digital ice chart for Mar 30 2011
Mar 30, 2011
GLERL digital ice chart for Mar 31 2011
Mar 31, 2011
GLERL digital ice chart for Apr 1 2011
Apr 1, 2011
GLERL digital ice chart for Apr 2 2011
Apr 2, 2011
GLERL digital ice chart for Apr 3 2011
Apr 3, 2011
GLERL digital ice chart for Apr 4 2011
Apr 4, 2011
GLERL digital ice chart for Apr 5 2011
Apr 5, 2011
GLERL digital ice chart for Apr 6 2011
Apr 6, 2011
GLERL digital ice chart for Apr 7 2011
Apr 7, 2011
GLERL digital ice chart for Apr 8 2011
Apr 8, 2011
GLERL digital ice chart for Apr 9 2011
Apr 9, 2011
GLERL digital ice chart for Apr 10 2011
Apr 10, 2011
GLERL digital ice chart for Apr 11 2011
Apr 11, 2011
GLERL digital ice chart for Apr 12 2011
Apr 12, 2011
GLERL digital ice chart for Apr 13 2011
Apr 13, 2011
GLERL digital ice chart for Apr 14 2011
Apr 14, 2011
GLERL digital ice chart for Apr 15 2011
Apr 15, 2011
GLERL digital ice chart for Apr 16 2011
Apr 16, 2011
GLERL digital ice chart for Apr 17 2011
Apr 17, 2011
GLERL digital ice chart for Apr 18 2011
Apr 18, 2011
GLERL digital ice chart for Apr 19 2011
Apr 19, 2011
GLERL digital ice chart for Apr 20 2011
Apr 20, 2011
GLERL digital ice chart for Apr 22 2011
Apr 21, 2011
GLERL digital ice chart for Apr 22 2011
Apr 22, 2011
GLERL digital ice chart for Apr 23 2011
Apr 23, 2011
GLERL digital ice chart for Apr 24 2011
Apr 24, 2011
GLERL digital ice chart for Apr 25 2011
Apr 25, 2011
GLERL digital ice chart for Apr 26 2011
Apr 26, 2011
GLERL digital ice chart for Apr 27 2011
Apr 27, 2011
GLERL digital ice chart for Apr 28 2011
Apr 28, 2011
GLERL digital ice chart for Apr 29 2011
Apr 29, 2011
GLERL digital ice chart for Apr 30 2011
Apr 30, 2011
GLERL digital ice chart for May 1 2011
May 1, 2011
GLERL digital ice chart for May 2 2011
May 2, 2011
GLERL digital ice chart for May 3 2011
May 3, 2011
GLERL digital ice chart for May 4 2011
May 4, 2011
GLERL digital ice chart for May 5 2011
May 5, 2011
GLERL digital ice chart for May 6 2011
May 6, 2011
GLERL digital ice chart for May 9 2011
May 9, 2011
GLERL digital ice chart for May 10 2011
May 10, 2011
GLERL digital ice chart for May 11 2011
May 11, 2011
GLERL digital ice chart for May 12 2011
May 12, 2011
GLERL digital ice chart for May 13 2011
May 13, 2011