Articles tagged "arctic"

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Polar Stratospheric Clouds form over Sweden

Polar stratospheric clouds, reported on December 9, 2016, over the skies of Kiruna, Sweden, indicate the stratosphere above the Arctic Circle is getting very cold. Polar stratospheric clouds (PSCs) form from the icy particles in the lower stratosphere, in extremely...

December 15, 2016

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Satellites measure increase of Sun’s energy absorbed in the Arctic

NASA satellite instruments have observed a marked increase in solar radiation absorbed in the Arctic since the year 2000 – a trend that aligns with the steady decrease in Arctic sea ice during the same period.While sea ice is mostly white and reflects the sun&rsqu

December 17, 2014

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Increase in Arctic cyclones linked to climate change, new study shows

Winter in the Arctic is not only cold and dark, it is also storm season when hurricane-like cyclones traverse the northern waters from Iceland to Alaska. These cyclones are characterized by strong localized drops in sea level pressure, and as Arctic-wide decreases in

February 19, 2014

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Arctic cyclones more common than previously thought

Weather data at the Ohio Supercomputer Center reveals in a new study hundreds of smaller storms that had previously escaped detection. From 2000 to 2010, about 1 900 cyclones churned across the top of the world each year, leaving warm water and air in their

January 17, 2014

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Two massive lakes discovered underneath the Greenland Ice Sheet

According to recently published study, two massive subglacial lakes have been discovered 800 meters beneath surface of the melting Greenland Ice Sheet. Lakes discovered by researchers from the Scott Polar Research Institute (SPRI) at the University of

November 30, 2013

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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

wmodubbed

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

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

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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

USS_Jeannette

NOAA, National Archives team up with citizen-scientists to reconstruct historical climate of the Arctic

Before there were satellites or weather data transmitters or computer databases, there were Arctic sea voyages and sailors dutifully recording weather observations in ship logs. Now a new crowdsourcing effort could soon make a wealth of weather data from these ship

October 26, 2012

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Wind shift could affect sea ice loss and bring more extreme weather to North America and Europe

Arctic has been experiencing a shift in the general patterns of high and low pressures recently, as well as the direction and speed of the winds. These changes may explain some of the dramatic sea ice loss experienced in the Arctic regions. Wind speed and direction

October 24, 2012

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Arctic sea ice shrinks to smallest extent ever recorded

Rate of summer ice melt smashes two previous record lows and prompts warnings of accelerated climate change. Arctic sea ice cover likely melted to its minimum extent for the year on September 16, according to scientists at the National Snow and Ice Data Center

September 20, 2012

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Arctic sea ice at lowest level on record

The amount of sea ice in the Arctic has fallen to the lowest level on record. On August 27, Arctic sea ice was at 4.10 million square kilometers (1.58 million square miles), or about 30 % of the Arctic Ocean’s surface according to the National Snow and Ice Data

August 28, 2012

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Arctic sea ice set to reach its lowest extent ever recorded

Ice volume in the Arctic has declined dramatically over the past decade.  Unprecedented rate of Arctic sea ice melt is set to reach its lowest extent ever recorded by the end of this week.Current melt rate of more than 100,000 square kilometers per day is expected

August 25, 2012

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Rapid ice melt opens Arctic's Northwest Passage

Ice retreated rapidly in the Parry Channel between mid-July and early August 2012. Parry Channel is a part of elusive Northwest Passage. The loss of Arctic sea ice is predicted to open up the Northwest Passage, shortening shipping routes and facilitating the exchange

August 11, 2012

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Unusual sea ice retreat in the Beaufort Sea

Sea ice retreat in June is typical, as the summer solstice approaches in the Northern Hemisphere with long hours of sunlight to warm the Arctic and melt snow and sea ice. However, the first half of June 2012 brought unusually rapid ice loss.One area of rapid ice

July 07, 2012

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Researchers found evidence of warm periods in Arctic

Analytical results from the longest sediment core that has ever been drilled in the terrestrial areas of the Arctic have shown temperatures that were previously considered impossible for the Arctic Circle. In addition, a notable correlation of the warm periods in the

June 25, 2012

Arctic Ocean map

Unexpected discovery - Arctic Ocean is richer in microscopic plants than any other ocean on Earth

Scientists have made a biological discovery in Arctic Ocean waters as dramatic and unexpected as finding a rainforest in the middle of a desert. A NASA-sponsored expedition punched through three-foot thick sea ice to find waters richer in microscopic marine plants,

June 07, 2012

prof Carlos Duarte

Carlos Duarte: "We are facing the first clear evidence of a dangerous climate change"

"We are facing the first clear evidence of a dangerous climate change. However, some of the researchers and some of the Media are plunged into a semantic debate about whether the Arctic Sea-Ice has reached a tipping point or not. This all is distracting the attention

February 03, 2012

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New research reveals abundance of fresh water in the Arctic

A large dome of fresh water has been building up in the Arctic Ocean over the last 15 years. The water is spilling into the north Atlantic and cooling Europe caused by a change in wind direction. Since 2002, the sea surface in the studied area has risen by about 15 cm,

January 27, 2012

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Arctic sea ice hits record low

The extent of the Arctic sea ice — has passed a new threshold. German researchers announced on Sept. 8 that the sea-ice cover had shrunk below its record minimum, set in 2007. Elsewhere, researchers said the race remained too close to call.The NSIDC proclaimed the

September 14, 2011