A webspace devoted to the current state
of our cryosphere
Archive of daily polar sea ice cap concentrations (1979 - present)
Dowload the historical sea ice dataset here
Questions and/or comments to William Chapman
sea ice animations:  1978-2006 (46 MB quicktime)    2001-2006 (11 MB quicktime)

recent ice area
recent Arctic sea ice
hemispheric ice area
Northern Hemisphere sea ice area
hemispheric anomaly
Polar sea ice anomaly
seasonal sea ice
seasonal sea ice trend
tale of the tape
Atlantic sea ice
1-day 30-day

Northern Hemisphere

click here to add solar shading in images
click here to change to "natural color" images
Arctic sea ice
1-day 30-day

Russian sea ice
1-day 30-day

Pacific sea ice
1-day 30-day

Canada Alaska sea ice
1-day 30-day

Latest regional sea ice coverage and anomalies

Bering Sea Chuckchi sea East Siberian Sea Laptev Sea Kara Sea Barents Sea Greenland Sea Baffin/Newfoundland Seas St. Lawrence Hudson bay Hudson Bay Beaufort Sea Arctic Basin Sea of Okhotsk Canadian Archipelago
Choose a region from the map left
or the list below :
Arctic Basin Laptev Sea
Bering Sea East Siberian Sea
St. Lawrence Chuckchi Sea
Baffin/Newfoundland Bay Beaufort Sea
Greenland Sea Canadian Archipelago
Barents Sea Hudson Bay
Kara Sea Sea of Okhotsk

recent SH ice area
recent Antarctic sea ice
S. hemisphere ice area
Southern Hemisphere sea ice area
S. hemisphere ice anomaly
South Polar sea ice anomaly

Southern Hemisphere

click here to add solar shading in images

Antarctic sea ice
1-day 30-day
South Polar sea ice
1-day 30-day


1-day 30-day


1-day 30-day


1-day 30-day


Global sea ice area
global sea ice


Snow and ice data provided by the National Center for Environmental Prediction/NOAA
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New products:

The 40Mb animation at the left shows the dramatic loss of multiyear sea ice over the past year. Multiyear sea ice is older and generally thicker ice - sea ice that has survived at least one melt season (shown in brighter white).

Compare side-by-side images of Northern Hemisphere sea ice extent for any two dates in the satellite record (1979-present).

View the updated high resolution animation of this year's sea ice retreat (01/01/2007 - 09/23/2007). WARNING - This quicktime animation is very large at 200Mb, but it illustrates nicely the temporal evolution of this year's sea ice. Animation: 2007 sea ice minimum animation
Additional years: 2002, 2003, 2004, 2005, 2006

Peruse an archive of map displays of the atmospheric and radiative climatic conditions leading up to the record setting Northern Hemisphere sea ice minimum of 2007: sea ice autopsy
Now you can access your favorite Cryosphere Today images from the middle of the pack ice, provided you have a nearby cell tower and/or wifi node. Visit our custom Cryosphere Today mobile web application created specifically for the iPod touch and iPhone handheld devices.

Follow this link for some background information on historic sea ice minima.

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