News

Arctic sea ice extent deduced from altimetry shows a lower-than-average surface again.

The updating of the RA-2 altimetry data from Envisat over the Arctic Ocean for the end of summer (for the month September 2011) shows a comparable low record than 2007 : ~4.10 million km² .

However, the repartition of ice is different. A region near the Severnaïa Zemlia archipelago off Siberia (between the Kara and Laptev Seas) is now surrounded by open water.