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Unformatted text preview: fall than melts o Snow must not be removed by avalanches and wind o The height of glacier formation is controlled by latitude In Polar Regions, glaciers form at sea-level In equatorial regions, glaciers form above 5 km elevation o The elevation is defined as the "snow line" Snow line= elevation of year-round snow aka equilibrium line Glaciers are formed of ice o Sublimation/melting o Removes points, allow snow to pack o Sublimation ice goes directly to vapor with no water phase o Weight of overlying snow causes pressure melting o Firm produced from snow o Additional weight increases compaction Thermal categories o Glaciers may be classified by thermal conditions Temperate glaciers ice is at or near melting temperature.....
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This note was uploaded on 04/18/2008 for the course ERS 102 taught by Professor Kelley during the Spring '08 term at University of Maine Orono .
- Spring '08