Arctic & Antarctic - page 4

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

sea ice

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

bedmap21

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

sea ice animation

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

CRYOSAT_arctic_sea_ice

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

canyon

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

earth 1

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

arctic

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

Intermediate depth drill

Scientists successfully drilled through 763m of ice to reach bedrock in Antarctic

Scientists have successfully drilled through 763 metres of ice to reach bedrock of Roosevelt Island in the Ross Sea at Antarctic. The drill cores will provide the most detailed record of the climate history of the Ross Sea region for the last 30,000 years, when

January 09, 2013

glacier

Alaska experiencing a widespread cooling pattern for at least a decade

Alaska has been experiencing a widespread cooling pattern for at least a decade. In the first decade since 2000, the state has cooled an average of -16.4°C (2.4 degrees Fahrenheit). Parts of Western Alaska saw temperatures drop a significant 4.5

January 05, 2013

Proba 1 Concordia1

Proba-1 images remote Concordia south polar base - one of the remotest places on Earth

Concordia research base is probably the loneliest place on Earth. Situated in the heart of Antarctica, it is one of the few permanently crewed habitats in Antarctica. Located 3233 m above sea level in the high interior, its nearest neighbour is Russia’s Vostok base,

December 12, 2012

skylights_meltpond

2012 Arctic Report Card - Dramatic changes in the Arctic

The Arctic Report Card is tracking recent environmental changes, with 20 essays on different aspects of the environment. The Arctic Report Cards produced by the National Oceanic and Atmospheric Administration (NOAA) are a source of reliable and brief information on the

December 07, 2012

Selection_178

Major study finds ice sheet loss at both poles increasing

In a landmark study published on Thursday, November 29, 2012 in the journal Science, 47 researchers from 26 laboratories report the combined rate of melting for the ice sheets covering Greenland and Antarctica has increased during the last 20 years. Together, these ice

November 30, 2012