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Average Monthly Arctic Sea Ice Extent, January 1979-2011
January 2011 compared to past years
January 2011 had the lowest ice extent for the month since the beginning of satellite records. The linear rate of decline for the month is –3.3% per decade. Ice extent for the Arctic as a whole increased at an average of 42,800 square kilometers (16,500 square miles) per day through the month of January, which is about average.
Read more: nsidc.org/arcticseaicenews/2011/020211.html
Average Monthly Arctic Sea Ice Extent, January 1979-2011
January 2011 compared to past years
January 2011 had the lowest ice extent for the month since the beginning of satellite records. The linear rate of decline for the month is –3.3% per decade. Ice extent for the Arctic as a whole increased at an average of 42,800 square kilometers (16,500 square miles) per day through the month of January, which is about average.
Read more: nsidc.org/arcticseaicenews/2011/020211.html