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Latest Glaciology Stories

Greenland Ice Sheet Is Melting From Below
2013-08-12 04:20:03

redOrbit Staff & Wire Reports - Your Universe Online High heat flow from the mantle into the lithosphere is causing the Greenland ice sheet to melt from below, according to new research published in Sunday’s online edition of the journal Nature Geoscience. This phenomenon, the researchers explain, is very variable spatially and originates in an exceptionally thin lithosphere (the Earth’s crust and upper mantle). As a result, they report there is an increase in the heat flow from...

2013-08-06 08:27:03

Shrinkage of Bering Glacier attributed to Earth's rapidly warming climate SEATTLE, Aug. 6, 2013 /PRNewswire/ -- North America's largest glacier is rapidly wasting away. Bering Glacier, which flows from the vast ice fields of Alaska's St Elias and Chugach Mountains toward the Gulf of Alaska, covers 1700 square miles, an area larger than the state of Rhode Island. Indications are that the glacier has been there throughout the Wisconsin Glacial Epoch, which began over 100,000 years...

Wildlife Greatly Impacted By Arctic Sea-Ice Loss
2013-08-02 07:11:40

April Flowers for redOrbit.com - Your Universe Online Because sea ice is at its lowest point in 1,500 years, scientists are questioning how ecological communities in the Arctic will be affected by this continued and perhaps accelerating melting process over the next two decades. An international team of scientists, led by Penn State University biologist Eric Post, examined relationships among algae, plankton, whales, and terrestrial animals such as caribou, arctic foxes, and walrus, as...

Polar Pool Not Extreme
2013-07-31 11:23:48

Brett Smith for redOrbit.com - Your Universe Online Last week, pictures from the North Pole Experimental Observatory (NPEO) showed the North Pole seemingly covered by a sea of water, but according to a statement from the project's principal investigator, conditions in the Arctic are typical for this time of year and viewing the images is all a matter of perspective. "Every summer when the sun melts the surface the water has to go someplace, so it accumulates in these ponds," said Jamie...

2013-07-30 16:20:28

WASHINGTON, July 30, 2013 /PRNewswire-USNewswire/ -- NASA has selected the University of Colorado Boulder for the management and operations of the Earth Observing System Data and Information System Snow and Ice Distributed Active Archive Center. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) This cost, no-fee completion contract is worth about $42 million. The base performance period is from Aug. 1 through May 31, 2014, with four one-year extension options. This...

Arctic Winters Were Ice-Free Three To Five Million Years Ago
2013-07-30 06:29:43

April Flowers for redOrbit.com - Your Universe Online During the Pliocene Epoch, the Earth was substantially warmer than it is today, despite similar concentrations of carbon dioxide in the atmosphere. A new study, led by the University of Colorado Boulder, suggests year-round ice-free conditions across the surface of the Arctic Ocean could explain the difference. The study was published in a recent issue of Palaeogeography, Paleoclimatology, Palaeoecology. A new record was marked by...

Antarctic Permafrost Melting Faster Than Previously Thought
2013-07-24 17:51:21

Lee Rannals for redOrbit.com - Your Universe Online Scientists reported in the journal Scientific Reports that permafrost in a section of Antarctica is melting faster than expected. Data from Garwood Valley in the McMurdo Dry Valleys region of Antarctica has shown that melt rates accelerated consistently from 2001 to 2012, rising to about ten times the valley's historical average for the present geologic epoch. Scientists previously thought the region's ground ice to be in equilibrium,...

Study Explains Surprising Acceleration Of Greenland's Inland Ice
2013-07-24 14:49:30

NASA [ Watch The Video Greenland Ice Flow ] Surface meltwater draining through cracks in an ice sheet can warm the sheet from the inside, softening the ice and letting it flow faster, a new NASA-funded study finds. During the last decade, researchers have captured compelling evidence of accelerating ice flow at terminal regions, or "snouts," of Greenland glaciers as they flow into the ocean along the western coast. Now, the new research shows that the interior regions are also...

Glacier Geometry Linked To Diverse Calving Patterns
2013-07-23 05:24:37

April Flowers for redOrbit.com - Your Universe Online Large stretches of ice on the coasts of Antarctica and Greenland are at risk of rapidly cracking apart and falling into the ocean in events over the coming decades that could aggravate sea level rise. The new study, published in Nature Geoscience, describes new iceberg calving simulations from the University of Michigan. "If this starts to happen and we're right, we might be closer to the higher end of sea level rise estimates for...

Ancient Antarctic Ice Melt 66 Feet
2013-07-22 08:50:47

Brett Smith for redOrbit.com - Your Universe Online A large team of international researchers has looked millions of years into the Antarctic past and found evidence that massive sections of the continent's eastern ice sheet once melted to raise sea levels by around 66 feet. "Scientists previously considered the East Antarctic ice sheet to be more stable than the much smaller ice sheets in West Antarctica and Greenland, even though very few studies of East Antarctic ice...


Latest Glaciology Reference Libraries

Columbia Plateau
2013-04-19 16:35:47

The Columbia Plateau ecoregion is a Level III ecoregion designed by the United States Environmental Protection Agency in the U.S. states of Oregon and Washington, with little areas over the Washington state border in Idaho. This ecoregion stretches across a wide swath of the Columbia River Basin from the Dalles, Oregon to Lewiston, Idaho to Okanogan, Washington near the Canadian border. It incorporates nearly 500 miles of the Columbia River, as well as the lower reaches of major tributaries....

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...

Meltwater
2009-07-06 17:15:30

Meltwater is water that is released from melting snow or ice. This includes meltwater from glacial ice and ice shelves over oceans. Meltwater is often produced during volcanic eruptions, and can cause dangerous lahars (landslides of wet volcanic debris). When meltwater pools on the surface rather than draining or flowing away, it forms pools known as melt ponds. Meltwater will often refreeze as the temperature drops. Meltwater can also collect or melt under the ice's surface. Sub-glacial...

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