sea ice extent

This dataset only shows Septembers from 1979 2019 for both the Arctic and Antarctic. Welcome to NASA Earth Observations where you can browse and download imagery of satellite data from NASAs Earth Observing System.

Arctic Sea Ice Extent In August September October From 1979 To 2018 Oc

2022 is shown in blue 2021 in green 2020 in orange 2019 in brown 2018 in magenta and 2012 in dashed brown.

. Also refers to the extent of the ice pack into the open ocean which varies seasonally. The sites listed below are. Arctic sea ice extent is declining at a rapid rate. This was the lowest extent on record for this date the previous lowest having been 1689 million sq km in 2002.

The OOPC is working to promote production and coordination of Arctic and Antarctic sea ice indices. The 1981 to 2010 median is in dark gray. Sea ice extent provided by the National Snow and Ice Data Center NSIDC is available from 19792022 for the Globe Northern Hemisphere and Southern Hemisphere. Unlike icebergs glaciers ice sheets and ice shelves which originate on land sea ice forms expands and melts in the ocean.

Since then ice extent has grown again signaling an end to the summer melt season. By contrast Antarctic sea ice fringes a massive land mass growing as far as winter freezing temperatures let it. September was chosen to specifically highlight the change in the Arctic minimum sea ice extent through time. This means that on average sea ice covers almost 10 million square miles about 25 million square kilometers of the Earth.

Antarctic sea ice concentration in September 2021 the month of the maximum winter extent in the Southern Hemisphere. The extent in September 2019 was about 30 lower than the average September extent over 1980-2010. Over 50 different global datasets are represented with daily weekly and monthly snapshots and images are available in a. The ice then grew during the winter months and reached its annual maximum extent in March 2016 measuring 1452 million square kilometers 561 million square miles.

Antarctic sea ice extent on 14 th August 2022 was 1686 million sq km Figure 6. Sea ice extent shrank to 177 million square miles 459 square kilometers on September 19 and again on September 23. Sea Ice Ice Extent Ice Extent The minimum or maximum length of the ice or ice edge into the open water. Sea ice is monitored closely by scientists because changing sea ice coverage can have a huge impact on the rest of the globe.

2 days agoThe graph above shows Arctic sea ice extent as of August 16 2022 along with daily ice extent data for four previous years and the record low year. The National Snow Ice Data Center northern and southern hemisphere monthly sea ice extent records can be viewed above. Arctic sea ice has likely reached its annual minimum for 2018 according to the National Snow and Ice Data Center NSIDC. Because this solar energy is not absorbed into the ocean temperatures nearer the poles remain cool.

It fringes the continent and reaches to 55S latitude at its greatest extent. Antarctic sea ice extends to about 7 million square miles in winter versus 6 million square miles in the Arctic. Description of Sea Ice Extent. Come spring however sea ice extent shrinks in the Arctic with a lot of ice persisting whereas almost all Southern Ocean or Antarctic sea ice is seasonal ice meaning it melts away and reforms annually.

This sea ice extent dataset is on a 25km cell size grid covering both Arctic and Antarctic polar regions. Whereas Northern Hemisphere sea ice can extend from the North Pole to a latitude of 45N along the northeast coasts of Asia and North America most of the ice is found above 70N. The following sites have sea ice products based on a variety of data sources and algorithms. Sea ice influences global climate by reflecting sunlight back into space.

Southern Hemisphere sea ice does not get that close to the South Pole. In September 2015 Arctic sea ice reached a minimum extent of 441 million square kilometers 17 million square milesthe fourth lowest in the satellite record. Sea ice in both hemispheres can be easily monitored now with data from a series of satellites that have been operating since the late 1970s. Every year NOAA publishes the Arctic Report Card.

The decrease in sea ice coverage for the. Current Antarctic sea ice extent. Global warming is amplified in polar regions. The Antarctic summer minimum is about 1 million square miles versus 25 million square miles for the Arctic.

The Sea Ice Outlook is shown as a purple boxplot indicating range median and quartiles of the 30 predictions submitted.

Figure 1 Arctic Sea Ice Extent For December 2016 Was 12 10 Million Square Kilometers 4 67 Million Square Miles The Magenta Li Arctic Sea Arctic Ice Sea Ice

Arctic Sea Ice Extent And Concentration On February 1 2018 Arctic Arctic Sea Sea Ice

Minimum And Maximum Arctic Sea Ice Extent 1979 To 2018 Oc Arctic Sea Sea Ice Arctic

Arctic Sea Ice Shatters Previous Low Records Antarctic Sea Ice Edges To Record High Arctic Sea Sea Ice Arctic

Arctic Sea Ice To Reach Sixth Lowest Extent On Record As Summer Draws To A Close The Arctic Sea Ice Melt Season Is Coming To An End Arctic Sea Sea Ice

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