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USGS - science for a changing world

Sea Ice Index - historic sea ice extent for the North Pole (median for April, 1982)


Original Data Basin Creation Date
2011-03-22 08:33:40
Original Data Basin Modified Date
2011-05-14 18:36:19


The Sea Ice Index provides a quick look at sea ice changes in spatial and historical context and gives a consistent, up-to-date source of sea ice extent and sea ice concentration values and images. The NSIDC Near-Real-Time DMSP SSM/I Daily Polar Gridded Sea Ice Concentrations and the Sea Ice Concentrations from Nimbus-7 SSMR and DMSP SSM/I Passive Microwave Data data sets are used to generate the monthly records of sea ice extent and sea ice concentration for the Arctic and Antarctica from satellite passive microwave data. Data files tabulate monthly mean extent and area, in millions of square kilometers, by year for a given month. Plots of monthly sea ice extent anomalies with trend lines and significance intervals are available. [...]


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  • Data Basin



Data source
National Snow and Ice Data Center (<br />
Harvested on Fri May 23 09:39:31 MDT 2014 from Data Basin Service

Additional Information


Type Scheme Key
UniqueKey Data Basin d97c6999c66b449fa9ae6c666c74535c

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