Because of infrastructure works on which we have no influence, there will be several service disruptions between Monday, 23 February and Friday, 13 March. The exact timing is not fixed yet,

The disruptions can last from a few hours up to several days. During these times, this webpage will still be online, but without access to the data archive, and without daily updates. We will try to process missed data between service disruptions, whenever services are back.

We regret the inconvenience.

Daily AMSR2 Sea ice concentrations

Arctic	Antarctic

Daily Ice Thickness and Sea Ice Extent Time Series

Merged SMOS and SMAP Thin Sea Ice Thickness	Sea Ice Extent in the Arctic
	Click on the image to enlarge. Seasonal cycle of Arctic sea ice extent (total area of at least 15% ice concentration) for the last 6 years and the minimum year 2012 in comparison to the long-term average (1972–today; dashed line).

RV Polarstern and Sea Ice Extent Time Series

Polarstern Current Position	Sea Ice Extent in the Antarctic
	Click on the image to enlarge. Seasonal cycle of Antarctic sea ice extent (total area of at least 15% ice concentration) for the last 7 years (colored lines) in comparison to the long-term average (1973–today; dashed line).