images

Arctic sea ice - March 11, 2008

by

Nasa/GSFC/Novapix

Reference

t-arc01-00011

Date

2008-09-16

This image shows the sea ice that occurred on March 11, 2008.Sea ice is frozen seawater floating on the surface of the ocean. Some sea ice is semi-permanent, persisting from year to year, and some is seasonal, melting and refreezing from season to season. The sea ice cover reaches its minimum extent at the end of each summer and the remaining ice is called the perennial ice cover. Image made from Aqua satellite instrument.