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An animation created from daily sea ice concentration data from the National Snow and Ice Data Center, illustrating the shrinkage of the polar ice cap to a record extent in September 2007.
While the Arctic ice cap is normally at its minimum during September, this year's retreat is already 20% lower than ever recorded.
Acknowledgments:
Maslanik, J., and J. Stroeve. 1999, updated daily. Near real-time DMSP SSM/I daily polar gridded sea ice concentrations, 08/01/2007-09/14/2007. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.
