Sea ice concentration

Proportion of ocean area in a given region that contains or is covered by floating ice.
This category is also used for sea-ice concentration and sea ice cover.
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Monthly average polar sea-ice concentration 1978 through 1991

This data set represents the results of calculations carried out on sea-ice-concentration data from the SMMR and SSM/I instruments. The original data were obtained from the National Snow and Ice Data Center (NSIDC). The data set also contains the source

PRISM 8°x10° Northern Hemisphere Paleoclimate Reconstruction: Digital Data

The PRISM 8°x10° data set represents several years of investigation by PRISM (Pliocene Research, Interpretation, and Synoptic Mapping) Project members. One of the goals of PRISM is to produce time-slice reconstructions of intervals of warmer than moder