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Latest Antarctica Stories

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2011-04-22 06:50:00

In a new study published in Science magazine, US researchers on Thursday said the hole in the ozone layer over Antarctica is a major driver of climate change and rain increases in the southern hemisphere over the last 50 years. The stratospheric ozone layer, which protects the Earth from harmful solar ultra-violet radiation, has thinned dramatically over the past half-century. The depletion of ozone has shifted the Southern Hemisphere's climate so that dry areas in the subtropics now see 10...

2011-04-21 22:59:47

First time that ozone depletion is shown to impact the entire circulation of the southern hemisphere In a study to be published in the April 21st issue of Science magazine, researchers at Columbia University's School of Engineering and Applied Science report their findings that the ozone hole, which is located over the South Pole, has affected the entire circulation of the Southern Hemisphere all the way to the equator. While previous work has shown that the ozone hole is changing the...

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2011-04-20 14:20:00

According to a new study, melting glaciers and ice caps on Canadian Arctic islands play a much greater role in sea level rise than scientists previously thought. There are bout 30,000 islands within the 550,000-square-mile Canadian Arctic Archipelago.  The study found that between 2004 and 2009, the region lost the equivalent of three-quarters of the water in Lake Erie. Alex Gardner, a research fellow in the Department of Atmospheric, Oceanic and Space Sciences at the University of...

2011-04-20 11:56:41

Antarctica: A Journey of Discovery Useful to Teachers Across Disciplines The National Science Foundation's Office of Polar Programs is making available a new full-color, extensively illustrated booklet that highlights the variety of cutting-edge science conducted in Antarctica at the three year-round stations the United States maintains on the continent. The booklet, which is available on-line, is aimed primarily at a middle-school audience and is designed to be useful as supplementary...

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2011-04-12 05:40:00

Young penguins in the Antarctic may be dying for lack of food, as melting sea ice reduces the numbers of small fish they consume as their primary food source, according to a new study published Monday in the Proceedings of the National Academy of Sciences (PNAS). The researchers found that just 10 percent of baby penguins tagged are returning in two to four years to breed, a drop of 40-50 percent since the 1970s. The study indicates that species often considered likely "winners" of climate...

2011-04-11 12:52:27

The Antarctic Peninsula has warmed rapidly for the last half-century or more, and recent studies have shown that an adjacent area, continental West Antarctica, has steadily warmed for at least 30 years, but scientists haven't been sure why. New University of Washington research shows that rising sea surface temperatures in the area of the Pacific Ocean along the equator and near the International Date Line drive atmospheric circulation that has caused some of the largest shifts in Antarctic...

2011-04-08 08:00:00

DULLES, Va., April 8, 2011 /PRNewswire/ -- Raytheon Technical Services Company LLC (RTSC), a subsidiary of Raytheon Company (NYSE: RTN), has received a one-year extension to its contract with the National Science Foundation (NSF) in support of the U.S. Antarctic Program (USAP). The award is worth approximately $157 million through March 31, 2012. RTSC's Raytheon Polar Services Company (RPSC) has been under contract to the NSF to provide logistics, operations, and maintenance support to...

2011-04-05 14:00:00

HOUSTON, April 5, 2011 /PRNewswire-USNewswire/ -- NASA and co-researchers from the United States, South Korea and Japan have found a new mineral named "Wassonite" in one of the most historically significant meteorites recovered in Antarctica in December 1969. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The new mineral was discovered within the meteorite officially designated Yamato 691 enstatite chondrite. The meteorite was discovered the same year as other landmark...

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2011-04-05 14:26:24

NASA and co-researchers from the United States, South Korea and Japan have found a new mineral named "Wassonite" in one of the most historically significant meteorites recovered in Antarctica in December 1969. The new mineral was discovered within the meteorite officially designated Yamato 691 enstatite chondrite. The meteorite was discovered the same year as other landmark meteorites Allende and Murchison and the return of the first Apollo lunar samples. The study of meteorites helps define...

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2011-04-05 11:05:00

In the spring of 2011, the ozone layer that protects us from harmful levels of ultraviolet rays has shown a record loss in the Arctic region, according to the U.N. weather agency. The continued presence of ozone-depleting substances in the atmosphere coupled with a very cold winter in the stratosphere is to blame. Although an international agreement from 1987 called the Montreal Protocol has successfully reduced the production and consumption of these ozone destroying chemicals, the long...


Latest Antarctica Reference Libraries

Antarctica
2013-02-18 10:15:24

Antarctica is the Earths southernmost continent; it contains the geographic South Pole. It’s situated in the Antarctic area of the Southern Hemisphere, almost completely south of the Antarctic Circle, and is bordered by the Southern Ocean. It’s the fifth-largest continent at 5.4 million sq miles. On average, it is the driest, coldest, and windiest continent as well as having the highest average elevation of all the continents. Considered a desert, the annual precipitation is only 8...

Ross Seal, Ommatophoca rossii
2013-01-01 15:44:30

The Ross seal (Ommatophoca rossii) is a true seal in the Phocidae family, and can only be found on pack ice in Antarctica. This species was formally described by James Clark Ross in 1841, during his British Antarctic Expedition. It is very uncommon to see in its range and rarely leaves the pack ice, with stray individuals occurring off southeast Australia or sub-Antarctic islands. The Ross seal can reach an average length between 5.5 and 6.9 feet, although some females can reach up to 8.2...

Weddell Seal, Leptonychotes weddellii
2012-06-27 21:35:24

The Weddell seal (Leptonychotes weddellii) is a large true seal in the Lobodontini tribe. It is native to Antarctica, with its range consisting of a large “ring” that surrounds Antarctica. This seal will spend most of its time in the water instead of on land. The Weddell seal appears on the IUCN Red List with a conservation status of “Least Concern”.  It is estimated this seal numbers over 800,000 individuals in the wild. First discovered in 1820s by a British sealing captain...

Antarctic Silverfish, Pleuragramma antarcticum
2012-04-02 17:14:35

The Antarctic Silverfish, (Pleuragramma antarcticum), is a member of the Notothenioidei family of fish. It is widely distributed around the Antarctic, but has largely disappeared from the western side of the northern Antarctic Peninsula based on 2010 research funded by the National Science Foundation. It is also found throughout the Southern Ocean. It grows to an average size of 6 inches, but has been known to reach lengths of up to 10 inches. It is usually pink with a silver tint, and...

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2009-08-18 20:48:47

Cryolophosaurus, meaning "cold crest lizard", is a genus of theropod dinosaur from the Early Jurassic Period (Pliensbachian Age). It is known from the Hanson Formation (previously known as the Upper Falla Formation). It was discovered by paleontologist Dr. William Hammer in 1991. It was the first carnivorous dinosaur to be discovered in Antarctica. It was also the first dinosaur from Antarctica to be officially named. Dr. William Hammer and his team unearthed the dinosaur during the...

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