Sea Ice Extent Page

Highly recommended: WattsUpWithThat's Sea Ice Page, and Sunshine Hours.
See also my Arctic Sea Ice Volume Page.

Arctic Sea Ice Extent

The Northern Hemisphere Sea Ice coverage

Ice concentration higher than 30% are classified as ice:

  Sea ice extent in recent years (in million km2) for the northern hemisphere, as a
    function of date.

Please notice, that the sea ice extent in this plot is calculated with the coastal zones masked out. To see the absolute extent, go to this page.

Source. From page: http://ocean.dmi.dk/arctic/old_icecover.uk.php

Arctic Sea ice extent 15% or greater  (DMI)

Danish Meteorological Institute (DMI) – Centre for Ocean and Ice – Click the pic to view at source

Arctic Sea Ice Extent 15% or Greater (NANSEN)

Nansen Environmental and Remote Sensing Center (NERSC) – Arctic Regional Ocean Observing System (ROOS) – Click the pic to view at source

Nansen data (CSV file with both extent and area) download here
Arctic Sea Ice Area

Nansen Environmental and Remote Sensing Center (NERSC) – Arctic Regional Ocean Observing System (ROOS)- Click the pic to view at source

Nansen data (CSV file with both extent and area) download here



Arctic Sea Ice Extent – 15% or greater:
National Snow & Ice Data Center (NSIDC) – click to view at source

Arctic Sea Ice Extent -15% or Greater:

Japan Aerospace Exploration Agency (JAXA) – International Arctic Research Center (IARC) – Click the pic to view at source

JAXA data download (CSV file of extent) here Details here
Arctic Sea Ice Extent – 15% or Greater:

Japan Aerospace Exploration Agency (JAXA) – International Arctic Research Center (IARC) – Click the pic to view at source

Details and raw data on this graph product here

Charctic Interactive Sea Ice Graph

Antarctic Sea Ice Extent – 15% or Greater

National Snow & Ice Data Center (NSIDC) – Click the pic to view at source

Arctic satellite temp:

The above graph is not auto-updating. Last updated by me: Feb 2015.

Antarctic Temperature:
RSS Southern Polar Temperature Lower Troposphere (TLT) – 1979 to Present

Remote Sensing Systems (RSS) – Microwave Sounding Units (MSU) – Click the pic to view at source