Glaciers By: Kody Smith In Partnership with Yulia Zaika.

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Presentation transcript:

Glaciers By: Kody Smith In Partnership with Yulia Zaika

Glaciers Glaciers are a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.

Glaciers facts There are two primary types of glaciers: Continental: Ice sheets are dome- shaped glaciers that flow away from a central region and are largely unaffected by underlying topography (e.g., Greenland and Antarctic ice sheets); Alpine or valley: glaciers in mountains that flow down valleys.

Continental glacier

Alpine glacier

Valley glacier

Glaciers length Glaciers can be of different lenght and they are very dynamic, they constantly move. They can retreat or advance. They can melt or they can crack (this is how usually icebergs form). Glaciers can normally last before melting around 1 million years

Glaciers color The color of glaciers can vairy colors such as White, blue, red, gray, etc…

Glacier video M6X0 M6X0 This video is made by Yulia Zaika’s collegue Allen Pope

Glacier diagram

Glacier locations glaciers may be found in mountain ranges on every continent except Australia, and on a few high-latitude oceanic islands. Between 35°N and 35°S, glaciers occur only in the Himalayas, Andes, Rocky Mountains, a few high mountains in East Africa, Mexico, New Guinea and on Zard Kuh in Iran.

Why are glaciers so blue? As with water, this color is caused by the absorption of both red and yellow light (leaving light at the blue end of the visible light spectrum). The absorption spectrum of ice is similar to that of water, except that hydrogen bonding causes all peaks to shift to lower energy - making the color greener. This effect is augmented by scattering within snow, which causes the light to travel an indirect path, providing more opportunity for absorption.

Glaciers There are more than just continental, valley and alpine glaciers or red, blue, white and gray glaciers like as you saw in the video on slide 7 but there is also cracked glaciers or black spotted ones too.

Really blue glacier

Good similation ms/cryosphere/images/glacier_interactive.swf ms/cryosphere/images/glacier_interactive.swf The link above is a good simulation for glaciers that Yulia found

Thanks for reading!!! This presentation was made by: Kody Smith Kody Smith was helped by: Yulia zaika on this presentation The video on slide 7 was made by Allen Pope