Scenes from Antartica

Publié le par Yann

A person stands silhouetted by the South Pole sunset on April 6, 2008. The sun dipped below the horizon on March 20th and did not appear again until September 22nd. (Calee Allen/National Science Foundation)


A killer whale (viewed from above) swims amid floating ice in the Ross Sea in January of 2005. Researchers from the National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center were studying the whales to determine if there are three separate species of Antarctic killer whales. (Donald LeRoi, NOAA Southwest Fisheries Science Center/National Science Foundation)


The Calkin Glacier, seen on November, 2003. The glacier is located in the Taylor Valley in Victoria Land, named for Parker Calkin, US Antarctic Program geologist who conducted research in the area during the 1960-61 and 1961-62 field seasons. (Brian Johnson/National Science Foundation)


Nacreous clouds near McMurdo, Ross Island, Antarctica on August 28, 2004. These polar stratospheric clouds at 80,000 feet are the highest of all clouds. They only occur in the polar regions when the stratospheric temperature dips below 100 degrees below zero Fahrenheit. They are also the site of chemical reactions that break down ozone in the upper atmosphere and contribute to the creation of the ozone hole above Antarctica. (Zenobia Evans/National Science Foundation)


After waiting for over two weeks for his mate to return from the sea and relieve him of nest duty, this Adelie penguin's hunger helps him make the decision to abandon his egg in search of fish and krill in the sea. Photo taken December 12, 2002. Known populations of the Adelie penguin have dropped by 65% over the past 25 years. (Melanie Conner/National Science Foundation)


The Dome at Amundsen-Scott South Pole Station is seen above a field of sastrugi - ridges of snow formed by wind erosion on October 29, 2003. (Bill McAfee/National Science Foundation)



          © The Big Picture

Publié dans Photo

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