Arctic & Antarctic

antarctic heat map

New Antarctic heat map reveals sub-ice hotspots

An international team of scientists, led by British Antarctic Survey (BAS), has produced a new map showing how much heat from the Earth’s interior is reaching the base of the Antarctic Ice Sheet. The map was published Monday, November 13, 2017, in the journal...

November 13, 2017

Antarctic volcano 16

Mantle plume, a geothermal heat source under West Antarctic ice sheet

A new study adds to evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that forms lakes and rivers under the ice sheet. Although the heat source isn't a new or increasing...

November 12, 2017

deception island volcano antarctica

Scientists uncover largest volcanic region on Earth under West Antarctica

A remote survey suggested by third-year university student discovered 91 volcanoes in a massive region known as the West Antarctic Rift System. The volcanoes range in height from 100 m to 3 850 m (328 to 12 631 feet). A study conceived by a third-year student at the...

August 14, 2017

larsen c ice shelf breaks off july 2017

Huge Antarctic iceberg finally breaks free

After months of ‘hanging by a thread’, a vast iceberg the size of Norfolk has finally broken off Antarctica’s Larsen C Ice Shelf. Around 30 m (98 feet) of this 190 m (623 feet) thick block of ice sits above the sea surface. Scientists now have...

July 12, 2017

sea ice extent sinks to record lows at both poles

Sea ice extent sinks to record lows at both poles

Arctic sea ice appears to have reached on March 7 a record low wintertime maximum extent. This is the lowest maximum in the 38-year satellite record. On the opposite side of the planet, on March 3 sea ice around Antarctica hit its lowest extent ever recorded by...

March 23, 2017

arctic sea ice extent november 2016

NSIDC reports record low Arctic sea ice extent

Average Arctic sea ice extent for November set a record low, reflecting unusually high air temperatures, winds from the south, and a warm ocean, NSIDC reports. Since October, Arctic ice extent has been more than two standard deviations lower than the long-term...

December 08, 2016

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West Antarctic Ice Sheet breaking apart from the inside out

A new study has found the glacier bounding the West Antarctic Ice Sheet is breaking apart from the inside out. The Pine Island Glacier, one of the glaciers which will probably rapidly retreat, forms an important part of the ice shelf of the West Antarctic Ice Sheet....

November 30, 2016

2016 17 southern hemisphere noctilucent clouds season starts early

Record early start of southern hemisphere NLC season

The southern hemisphere noctilucent clouds (NLC) season has started early this year and tied with 2013 for the earliest southern hemisphere season on record. The 2016/17 southern hemisphere noctilucent clouds season started on November 17 and tied with 2013 for the...

November 28, 2016

north pole temperature anomaly featured

North Pole in the grip of extreme warmth, parts of Asia suffer frigid conditions

A recently performed temperature analysis shows the North Pole is over 20 °C (36 °F) warmer than over the last decades. At the same time, unprecedented frigid temperatures have been observed in parts of Asia, in a highly unusual temperature anomaly dipole....

November 22, 2016

giant ice balls nyda siberia october 2016 tst

Rare phenomena: giant ice balls form on a beach in Siberia

Thousands of large ice balls have appeared on a beach in Nyda, Russian Siberia in late October 2016 and remain to this day. Many US meteorologists believe this is a sign of extra snowy winter throughout the United States. This is the first time that this rare...

November 07, 2016

ross ice shelf featured

Mysterious waves in the Antarctic atmosphere triggered by ice shelf vibrations

According to the new research, the ripples and undulations in the atmosphere above Antarctica are most likely induced by the low-frequency vibrations of the Ross Ice Shelf, the largest ice shelf in the world, extending over half a million square kilometers (188 000...

October 25, 2016

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2016 Arctic sea ice minimum the second-lowest on record

The Arctic sea ice appears to have reached its seasonal minimum for 2016 on September 10, the NSIDC said yesterday in a preliminary announcement. A relatively rapid loss of sea ice in the first ten days of September has pushed the ice extent to a statistical tie...

September 16, 2016

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Anthrax outbreak in Siberian Arctic, first since 1941

A dramatic rise in the number of hospitalized people diagnosed with anthrax was reported in Siberia's Yamal Peninsula, Russia on August 2, 2016. In total, 90 people, including 54 children, are in hospital as of August 2 in what is now the first anthrax outbreak...

August 03, 2016

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New phenomenon - the 'trembling tundra' of the Yamal Peninsula, Russia

A scientific expedition has witnessed a leaking methane gas surface bubbling phenomenon on Belyy Island in the Kara Sea, off the Yamal Peninsula coastline in Siberia, Russia. Researchers observed 15 regions of about 1 meter (3.3 feet) of trembling ground covered in...

July 26, 2016

sea_ice_feat

NASA: Global temperatures and Arctic sea ice extent continue setting new records

Analysis of climate conditions, conducted by NASA's scientists shows the global surface temperatures and Arctic sea ice extent during the first half of 2016 set new records and are continuing trends of change observed over the last few decades. NASA's...

July 20, 2016

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Arctic Alaska records highest temperature ever

The maximum daily temperature in Deadhorse, Far North Alaska reached 29.4 °C (85 °F) on Wednesday, July 13, 2016. This is the highest temperature ever known to be recorded in that area, NWS Fairbanks said. Although high temperatures were recorded across a...

July 15, 2016

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Antarctic sea ice growth explained by natural variability

A newly published study offers evidence that the negative phase of the Interdecadal Pacific Oscillation (IPO), which is characterized by cooler-than-average sea surface temperatures in the tropical eastern Pacific, has created favorable conditions for additional...

July 05, 2016