Arctic & Antarctic - page 4

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Arctic amplification

Since the mid-20th Century, average global temperatures have warmed about 0.6°C (1.1°F), however, warming has not occurred equally everywhere. Temperatures have increased about twice as fast in the Arctic as in the mid-latitudes, a phenomenon known as

May 26, 2013

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WMO dubbed last year as disturbing sign of climate change

The World Meteorological Organisation revealed in Statement on the Status of the Global Climate, that during the August to September 2012 melting season, the Arctic’s sea ice cover was just 3.4 million square kilometres (1.32 million square miles). That

May 04, 2013

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Operation IceBridge: Flying low over Southeast Greenland

A view from cockpit camera installed on NASA's P-3B airborne laboratory and operated by the National Suborbital Education and Research Center (NSERC) shows southeast Greenland from 500 meters above, recorded during Operation IceBridge's flyover on April 9,

April 13, 2013

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IceBridge: Keeping a close eye on Jakobshavn glacier

Jakobshavn Glacier, one of the fastest moving glaciers in Greenland, has been the focus of IceBridge survey flights for five consecutive years. Here, images from an IceBridge mission on April 4, 2013 and video footage from the 2012 Arctic campaign show this rapidly

April 06, 2013

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Sea Ice Max 2013: An interesting year for Arctic sea ice

NASA Goddard Visualisation Studio released video about state of Arctic sea ice during first three months of 2013. After a record melt season, an Arctic cyclone, and a fascinating fracturing event, Arctic sea ice has reached its maximum extent for the year. According to

April 05, 2013

arctic melt

Beginning of Arctic sea ice melting season

The average extent of sea ice in the Arctic has begun shrinking and will probably reach its minimum extent sometime in mid-September. Arctic sea ice reached this year's maximum extent on March 15 at 15.13 million square kilometers (5.84 million square

March 28, 2013

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Arctic ice breaks up in Beaufort Sea

A series of intense storms in the Arctic has caused fracturing of the sea ice around the Beaufort Sea along the northern coasts of Alaska and Canada. High-resolution imagery from the Suomi NPP satellite shows the evolution of the cracks forming in the ice, called

March 23, 2013

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Bedmap2 - detailed view of Antarctica’s landmass

Scientists at the British Antarctic Survey (BAS) have released the most detailed map yet of Antarctica’s landmass that allows scientists to better analyse the bed below the Antarctic ice sheet. Bedmap2 reveals a landscape of mountain ranges and plains

March 21, 2013

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NSDIC: Arctic & Antarctic Sea Ice Extent, 1979-2012 animated maps

In October 2012, National Snow and Ice Data Center (NSIDC) released an animated map of 2012 Arctic and Antarctic sea ice extent shown side-by-side with 1979 - 2009 climatology.    For more information and visualizations of thinning sea ice, see the

March 16, 2013

beaufort cracks

Large fractures observed in the Arctic sea ice

Large fractures in the sea ice were observed off the north coast of Alaska and Canada, from near Ellesmere Island in the Canadian Arctic to Barrow in Alaska, during the end of February and continuing into early March.According to the National Snow and Ice Data

March 15, 2013

palsa mire

An accelerating greening rate in the Arctic

Measurements show that temperatures have risen in the Arctic over the past three decades faster than anywhere else in the world. Plant communities in tundra and boreal ecosystems in the far north experienced major changes due the longer growing season. Satellite

March 14, 2013

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Dimishing Arctic sea ice - CryoSat reveals facts about ice volumes

An international team of scientists led by University College London provided insight into decline of Arctic sea ice volume and generated estimates of the sea-ice volume for the 2010–11 and 2011–12 winters over the Arctic basin using data from ESA’s CryoSat

February 13, 2013

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Daily satellite data about the condition of the Greenland ice sheet

The National Snow and Ice Data Center (NSIDC) launched a new website called Greenland Ice Sheet Today which provides daily satellite data about the condition of the Greenland ice sheet. The website also provides analysis, when possible, and will serve not only

February 10, 2013

chasing ice

"CHASING ICE" captures largest glacier calving ever filmed

In  this case a mass movement of ice, not rock and soil, on the Ilulissat Glacier in Western Greenland, a part of the film Chasing Ice. It is genuinely astonishing – the volume of the collapse is apparently 7.4 cubic kilometres.On May 28, 2008, Adam LeWinter and

February 08, 2013

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Ozone thinning has influenced ocean circulation

The hole in the Antarctic ozone layer has caused changes in the way that waters in those southern oceans mix, which has the potential to alter the amount of CO2 in the atmosphere and eventually could have an impact on global climate change, according to earth scientist

February 05, 2013

An Iceberg off the west Antarctic

How thick is the crust beneath Antarctica?

A giant ice cap up to 3,800 meters (2,36 miles ) thick covers about 99 % of the Antarctic continent, and under the layer of frozen water lays continental crust. Researchers  analyzed seismic data from the South pole to create a new most detailed map showing the

January 29, 2013

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January 2013 arctic outbreak in North America

At the start of 2013, temperature change occurred high in the atmosphere over the Arctic Circle, which caused an arctic outbreak in North America during the middle of January. In some places the air just north of the Great Lakes was colder than that over the North

January 25, 2013