glacial systems

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  • glacial systems
    • Positive mass balance 
      • winter, more accumulation than ablation. Mass added, glacier advances
    • zones
      • accumulation
        • The upper part of the glacier where mass is added
      • ablation
        • The lower part of the glacier where mass is lost
      • equilibrium
        • The area where mass added is equal to mass lost
    • outputs
      • meltwater
      • rock flour
    • stores
      • the mass of ice in a glacier
    • inputs
      • snow
      • sleet
    • transfer
      • the movement of the glacier
    • negative mass balance
      • summer, more ablation than accumulation. Mass lost, glacier retreats


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