EAES 101 Lecture Notes - Lecture 18: Ice Crystals, Surface 3, Leading Edge
10 Oct 2016
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Glaciers i: types, formation, movement, erosion: cadieux. Importance of glaciers: largest reservoir (pool) of freshwater, co(cid:448)er (cid:1005)(cid:1004)% of earth"s land surfa(cid:272)e, affected by long-term climate changes, tied to sea-level change. Iclicker: glaciers are the same as snow: false. Iclicker: are there any glaciers in north america: yes. Iclicker: because galciers are made of solid ice, they do not move: false. Mountain glaciers: include a variety of types, valley glaciers flow like rivers down valleys, piedmont glaciers spread out at the end of a valley. Continental glaciers: vast ice sheets covering large land areas, ice flows outward from thickest part of sheet, two major ice sheets on earth today, greenland, antarctica. So you want to form a glacier: cold local climate (polar latitudes or high elevation, snow must be abundant; more snow must fall then melts, snow must not be removed [e. g by avalanches or wind]
