GEO 1111 Lecture Notes - Lecture 15: Himalayas, Permafrost, Weather Modification

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GEO 1111 Full Course Notes
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GEO 1111 Full Course Notes
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Huge mass of ice resting on land or floating in the sea next to land. Moving extremely slow, moves like a river of ice, merging with other glaciers, in stream like manner. Places with snowfall and freezing foster development of these frozen rivers. Made by constant accumulation of snow/ice, mounting at weight increase pressure squeezes ice together. Alone form above snow line where they can survive year round. Most form on high mountain regions, e. g. himalayas, asia, europe alps, alaska, Tiny air bubble eventually forced out by increasing pressure, the glaciers appear blue, and glacier is highly dense, airless ice. Glacial ice, largest reservoir of freshwater on earth (77%). Glaciers affected by long-term climate change, precipitation, mean temperature, cloud cover, mass changes. They are considered among the most sensitive indicators of climate change and are major variations on the rising sea levels. Transported unsorted sediments across planet during ice age, created u shaped valleys, formed islands.

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