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Glaciers Hydrology Daren Blanck, MS
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Glacier: a Flowing Stream of Ice Mountain Continental (Ice Sheets)
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Snowfall vs Melting Zone of Accumulation Snowfall Exceeds Melting & Sublimation (Ablation) Excess Snow Turns to Ice & Flows Out Zone of Melting (Ablation) Ablation Exceeds Snowfall Melting Excess Made up by Ice Flowing in Terminus of Glacier Snowfall & Inflow = Ablation
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Anatomy of a Glacier
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Flow Glaciers flow due to Gravity and Internal deformation
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Crevasse Diagrams
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A Typical Glacial Advance and Retreat
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As long as Accumulation = Ablation, the Glacier Front Remains Fixed
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If Accumulation Exceeds Ablation, the Glacier Advances
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If Ablation Exceeds Accumulation, the Glacier Retreats
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Eventually, Material Trapped in the Ice Reaches the Terminus
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A Typical Glacial Advance and Retreat
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Results of Glaciation Abrasion Polish Striations Chatter Marks Crescentic Gouges Bedrock Scour
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Results of Glaciation Deposition Till/Morraine Erratics Outwash
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Animations < Glacial Ice Formation Glacial Erosion >
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Mountain Glacier Landforms
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Continental Glacier Landforms
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1) Nebraskan 2) Kansan 3) Illinoisian 4) Wisconsin North American Glaciation
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Glacial Melt Cascade Glacier - Alaska
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Glacial Melt Bolivia
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Kilimanjaro 1985-2002
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Greenland Ice Cap
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Antarctic Ice Cap
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Antarctic Subglacial Lakes
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Lake Vostok
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