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McMurdo Dry Valleys, Landsat 7 imagery acquired on December 18, 1999 The Dry Valleys are so named because of their extremely low humidity and lack of snow or ice cover. They are also dry because, in this location, the mountains are sufficiently high that they block seaward-flowing ice from the East Antarctic Ice Sheet from reaching the Ross
Antarctica provides a unique environment for the study of meteorites: the dry polar desert preserves them well, and meteorites older than a million years have been found. They are relatively easy to find, as the dark stone meteorites stand out in a landscape of ice and snow, and the flow of ice accumulates them in certain areas.
Parts of icy Antarctica are turning green with plant life as the region is gripped by extreme heat events, new research shows, sparking concerns about the changing landscape on this vast continent.
In Antarctica there are, in addition to mountaintops and nunataks, other natural snow- and ice-free areas often referred to as "Antarctic oases" or "dry valleys". [1] [2] These areas are surrounded by the Antarctic ice sheet or, in coastal areas, are situated between the ice sheet and the Antarctic ice shelves.
The West Antarctica plateau reaches snow levels of around 30 cm (12 in). This area is also warmer but it receives the heaviest snow and receives more wind. Because of the cold desert-like conditions on the plateaus, there are very little plants and animals. Some species of birds though have been seen.
The U.S.-based team used a sterile hot water drill to reach and collect samples from Lake Whillans, one of Antarctica's roughly 400 lakes, which are kept liquid by pressure, friction and the ...
Blood Falls, 2006 Blood Falls, at the toe of Taylor Glacier, 2013. Blood Falls is an outflow of an iron(III) oxide–tainted plume of saltwater, flowing from the tongue of Taylor Glacier onto the ice-covered surface of West Lake Bonney in the Taylor Valley of the McMurdo Dry Valleys in Victoria Land, East Antarctica.
A satellite hundreds of miles above Earth captured rare images of an atmospheric phenomenon that makes Antarctica glaciers appear to be smoking. NASA satellite captures rare sight of 'sea smoke ...