{"id":8814,"date":"2016-01-06T04:33:05","date_gmt":"2016-01-06T04:33:05","guid":{"rendered":"https:\/\/schooltutoring.com\/scholarship\/?p=8814"},"modified":"2016-01-06T17:10:01","modified_gmt":"2016-01-06T17:10:01","slug":"science-review-of-glaciers","status":"publish","type":"post","link":"https:\/\/schooltutoring.com\/scholarship\/2016\/01\/06\/science-review-of-glaciers\/","title":{"rendered":"Science Review of Glaciers"},"content":{"rendered":"

Overview<\/h3>\n

Glaciers form on land when the amount of snow falling in winter is greater than the amount that melts in the summer.\u00a0 The compact snow and ice form sheets that flow under their own weight.\u00a0 Those moving rivers of ice are especially found in mountainous areas and in the polar regions on Earth.<\/p>\n

Types of Glaciers<\/h3>\n

Alpine glaciers form near mountain summits, especially in areas where the winter snows are deep and do not melt completely during relatively short summers.\u00a0 The largest glaciers flow great distances, down high elevations to the lowlands.\u00a0 Continental glaciers, or ice sheets, cover more than 50,000 square kilometers, and exist mostly in Greenland and Antarctica.\u00a0 By contrast, the Arctic area is more oceanic, and glaciers do not form on oceans.<\/p>\n

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Movement of Glaciers<\/h3>\n

Glaciers move at different rates depending upon landforms and weather conditions.\u00a0 Over steep terrain, glaciers can move several meters at a time, especially if their inner temperature is relatively high.\u00a0 However, when terrain is not as steep and the weather is cold and dry, glaciers only move at the rate of a few centimeters a day.\u00a0 For the most part, glaciers move by a combination of friction and low pressure.\u00a0 Crevasses open as brittle upper ice cracks, making it dangerous for mountaineers to travel along them.<\/p>\n

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Glacial Erosion<\/h3>\n

Glaciers pick up rocks and sediment and carry them along, scraping and gouging the bedrock as it freezes, melts, and moves.\u00a0 In addition, water seeps through cracks beneath the glacier, causing more weathering and erosion.\u00a0 U-shaped valleys are gouged out of mountain landscapes by glacial action, and mountain peaks are carved into steep formations.\u00a0 The Matterhorn in the Alps is an example of this type of erosion, as glaciers sculpted a steep peak from three different sides of the mountain.<\/p>\n

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Glaciers and Global Warming<\/h3>\n

Glaciers store fresh water, and are a very important reservoir for much of the fresh water on the earth.\u00a0 However, many areas that were covered in ice, such as the ice sheets in Greenland and glaciers throughout the world, are melting more rapidly than ever before.\u00a0 Even Antarctica is losing mass along its great ice shelves at a greater rate than they are growing.<\/p>\n

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Overview Glaciers form on land when the amount of snow falling in winter is greater than the amount that melts in the summer.\u00a0 The compact snow and ice form sheets that flow under their own weight.\u00a0 Those moving rivers of ice are especially found in mountainous areas and in the polar regions on Earth. Types […]<\/p>\n","protected":false},"author":22,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[7],"tags":[3879,3773],"class_list":["post-8814","post","type-post","status-publish","format-standard","hentry","category-earth-sciences","tag-glaciers","tag-global-warming"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/posts\/8814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/comments?post=8814"}],"version-history":[{"count":0,"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/posts\/8814\/revisions"}],"wp:attachment":[{"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/media?parent=8814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/categories?post=8814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/schooltutoring.com\/scholarship\/wp-json\/wp\/v2\/tags?post=8814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}