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Latest Sea ice Stories

0d6a38eb7957ebdfbaf91593047c79811
2011-01-26 07:10:00

Scientists studying polar bears around the Beaufort Sea, north of Alaska, were amazed to witness one polar bear that swam continuously for more than nine days, covering some 426 miles, in search of sea ice. The scientists said this endurance feat could be the result of climate change. Polar bears are known to swim between land and sea ice floes to hunt seals. But the researchers said that increased sea ice melts push polar bears to swim much farther, risking their own health and future...

2011-01-18 19:19:19

A new analysis of the Northern Hemisphere's "albedo feedback" over a 30-year period concludes that the region's loss of reflectivity due to snow and sea ice decline is more than double what state-of-the-art climate models estimate. The findings are important, researchers say, because they suggest that Arctic warming amplified by the loss of reflectivity could be even more significant than previously thought. The study was published online this week in Nature Geoscience. It was funded...

3c5d1d93270c245375cc9c7dce10ecd91
2011-01-17 06:05:00

The Northern Hemisphere's shrinking ice and snow cover is causing less and less sunlight to reflect back into space in a previously underestimated mechanism that could add to global warming, according to a new study on the subject. Satellite data indicated that Arctic sea ice, glaciers, winter snow pack and Greenland's ice were reflecting less energy back into space between 1979 and 2008. The dwindling amount of reflective energy exposes the ground and water, both of which are darker and...

9b8b30067eeb158099f6e592948e81d71
2010-12-20 12:05:00

The Cryosat-2 spacecraft has provided a new map of ocean circulation across the Arctic basin. The spacecraft's primary mission is to measure sea-ice thickness, which has been in sharp decline in recent decades. However, Cryosat's ability to map the shape of the sea surface will allow scientists to determine if Arctic currents are changing as a result of winds being blown more easily on ice-free waters. "Nobody really knows how the Arctic is going to behave as the ice retreats, but we do...

0824516b00ec2839f645f5fed7976bc01
2010-12-16 06:25:00

According to a new study released Wednesday, there is no "tipping point" beyond which climate change will eventually push the Arctic icecap into a total melt off. Over the past 30 years the polar icecap has shrunk between 15 and 20 percent causing much concern that with current trends -- with regional temperatures increasing two to three times the global average -- it could disappear entirely during the summer months by the end of this century. One factor in this calculation is a so-called...

b74e947d0e1c2e77e2d86f701a69f6011
2010-12-15 10:40:41

A novel project using cameras mounted on unmanned aircraft flying over the Arctic is serving double duty by assessing the characteristics of declining sea ice and using the same aerial photos to pinpoint seals that have hauled up on ice floes. The project is the first to use aircraft to monitor ice and seals in remote areas without putting pilots and observers at risk, said Elizabeth Weatherhead of the University of Colorado at Boulder, who is leading the study team. Weatherhead is a senior...

cf5748960b8dcdf5428fcca9f66caf1f1
2010-12-09 11:00:00

Amundsen Sea Polynya International Research Expedition (ASPIRE) Combines Research and Education In a unique and complex example of "science diplomacy," teams of U.S. and Swedish scientists are sailing this month aboard two research vessels to study the ecology of the Amundsen Sea, one of the least-explored and most productive bodies in Antarctic waters, and to gauge the potential effects of a changing climate on the Southern Ocean. The joint American and Swedish expedition, involving the U.S....

4d10e22985b2986cdda02ac171ddd711
2010-12-06 06:15:00

The National Oceanic and Atmospheric Administration (NOAA) proposed on Friday to list six types of seals as "threatened" under the Endangered Species Act because they face hardships due to disappearing sea ice and melting snow packs. The NOAA said that four types of ringed seals that live in the Arctic basin and North Atlantic as well as two populations of bearded seals in the Pacific Ocean should be listed as threatened. The Saimaa ringed seals in Finland are already recognized as...

d440803c32a87eaf46ff76ecd55e33e51
2010-11-10 06:45:00

A NASA analysis of satellite data has quantified, for the first time, the amount of older and thicker "multiyear" sea ice lost from the Arctic Ocean due to melting. Since the start of the satellite record in 1979, scientists have observed the continued disappearance of older "multiyear" sea ice that survives more than one summer melt season. Some scientists suspected that this loss was due entirely to wind pushing the ice out of the Arctic Basin -- a process that scientists refer to as...

271b79ef4ebd720c44da10746d3332541
2010-10-28 08:56:28

Proof-of-Concept Study Published in Journal of Geophysical Research-Oceans In a research paper published online Saturday in the Journal of Geophysical Research Oceans, a publication of the American Geological Union (AGU), scientists reported the southern Baffin Bay off West Greenland has continued warming since wintertime ocean temperatures were last effectively measured there in the early 2000s. Temperatures in the study were collected by narwhals, medium-sized toothed Arctic whales, during...


Latest Sea ice Reference Libraries

Arctic Ocean
2013-04-18 22:31:23

The Arctic Ocean which is located in the Northern Hemisphere and mostly in the Arctic north polar region, is the shallowest and smallest of the world’s five major oceanic divisions. The International Hydrographic Organization recognizes it as an ocean, although, some oceanographers consider it as the Arctic Mediterranean Sea or simply, the Arctic Sea, classifying it a Mediterranean sea or an estuary of the Atlantic Ocean. Alternatively, the Arctic Ocean can be considered as the northernmost...

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Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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