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Tuesday, 26 August 2008 17:12
TSP NORWAY: Thermal State of Permafrost in Norway and Svalbard
Written by Louise Huffman
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Courtesy of the McMurdo Dry Valleys Long Term Ecological Research Program
The McMurdo Dry Valleys are the coldest and driest desert system in the world and represent 2% of the Antarctic Continent that is free of ice. This polar desert is a configuration of barren ground, alpine, terminal, and piedmont glaciers, and ephemeral streams. The high winds and bitt...
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Courtesy of the McMurdo Dry Valleys Long Term Ecological Research Program
The McMurdo Dry Valleys are the coldest and driest desert system in the world and represent 2% of the Antarctic Continent that is free of ice. This polar desert is a configuration of barren ground, alpine, terminal, and piedmont glaciers, and ephemeral streams. The high winds and bitt...
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Friday, 30 May 2008 22:41
Land and Life in the McMurdo Dry Valleys, Antarctica
Written by Rhian Salmon
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Courtesy of the McMurdo Dry Valleys Long Term Ecological Research Program
The McMurdo Dry Valleys are the coldest and driest desert system in the world and represent 2% of the Antarctic Continent that is free of ice. This polar desert is a configuration of barren ground, alpine, terminal, and piedmont glaciers, and ephemeral streams. The high winds and bitt...
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IPY.org Introductory Presentation IPY Multimedia; videos and podcasts of IPY participants in various languages. Also available from 'Browse by' menu at top of ipy.org. Arctic Portal webcasts IPY Opening Ceremony, March 2007 (follow links from webcast archive) PolarTrec Live From IPY! Presentations by IPY scientists talking...
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Background:
Layers of perennially frozen ground known as permafrost exist under about 20% of the Earth’s surface. Permafrost occurs on land in both the Arctic and Antarctic, as well as beneath the ocean around the Arctic coast and in many high mountain areas. Seasonal thawing and freezing of the soil forms a shallow active layer that overlies the permafrost. In contrast, deep permafrost, frozen to depths of 500 to 1000 meters, may have existed in a frozen state for thousands of years. Frozen soils have greater mechanical stability than unfrozen soils. Permafrost degradation can cause problems for roads, pipelines ...
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Background:
Layers of perennially frozen ground known as permafrost exist under about 20% of the Earth’s surface. Permafrost occurs on land in both the Arctic and Antarctic, as well as beneath the ocean around the Arctic coast and in many high mountain areas. Seasonal thawing and freezing of the soil forms a shallow active layer that overlies the permafrost. In contrast, deep permafrost, frozen to depths of 500 to 1000 meters, may have existed in a frozen state for thousands of years. Frozen soils have greater mechanical stability than unfrozen soils. Permafrost degradation can cause problems for roads, pipelines ...
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Return to Main Land and Life Page
Background:
Layers of perennially frozen ground known as permafrost exist under about 20% of the Earth’s surface. Permafrost occurs on land in both the Arctic and Antarctic, as well as beneath the ocean around the Arctic coast and in many high mountain areas. Seasonal thawing and freezing of the soil forms a shallow active layer that overlies the permafrost. In contrast, deep permafrost, frozen to depths of 500 to 1000 meters, may have existed in a frozen state for thousands of years. Frozen soils have greater mechanical stability than unfrozen soils. Permafrost degradation can cause problems for roads, pipelines ...
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Return to Main Land and Life pages Several IPY projects study water within the Land system. Here are some examples profiling in the Antarctic: • Antarctic Peninsula • Dry Valleys in the Arctic: • Soil Moisture • Arctic Char ____ Hydrology in the Antarctic Peninsula ...
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There are many IPY projects studying Polar Flora, Fauna, and Ecology and several of these projects also are members of other collectives focussing on the Arctic and Antarctic. For more information, please see: Conservation for Arctic Flora and Fauna (CAFF) Evolution and Biodiversity in the Antarctic (EBA) Examples of some of these project areas are described below in the following topics: Arctic Adaptations Evolution and Biodiversity in the Antarctic Soil Ecosystems in the Antarctic Dry Valleys Springtails Nemetodes...
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