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Ice sheet dynamics: Quiz

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More interesting facts on Ice sheet dynamics

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Question 1: What does the following picture show?

  Differential erosion enhances relief, as clear in this incredibly steep-sided Norwegian fjord.
  Rates of ice sheet thinning in Greenland

Question 2: What does the following picture show?

  Factors controlling the flow of ice
  Rates of ice sheet thinning in Greenland
  A cross-section through a glacier. The base of the glacier is more transparent as a result of melting.
  Rates of ice sheet thinning in Greenland

Question 3: What does the following picture show?

  The stress-strain relationship of plastic flow (teal section): a small increase in stress creates an exponentially greater increase in strain, which equates to deformation speed.
  Rates of ice sheet thinning in Greenland
  Rates of ice sheet thinning in Greenland
  A cross-section through a glacier. The base of the glacier is more transparent as a result of melting.

Question 4: The catastrophic collapse of the ________ ice shelf in the space of three weeks during February 2002 yielded some unexpected observations.
An Inconvenient TruthLarsen Ice ShelfCarl Anton LarsenAntarctic Peninsula

Question 5: What does the following picture show?

  The collapse of the Larsen B ice shelf had profound effects on the velocities of its feeder glaciers.
  Glacial flow rate in the Antarctic ice sheet
  Factors controlling the flow of ice
  Differential erosion enhances relief, as clear in this incredibly steep-sided Norwegian fjord.

Question 6: These so-called ________, named after their discoverer Hartmut Heinrich, appear to have a 7,000-10,000 year peridoicity, and occur during cold periods within the last interglacial[13].
Younger DryasLast glacial periodGulf StreamHeinrich event

Question 7: What does the following picture show?

  Factors controlling the flow of ice
  Factors controlling the flow of ice
  Factors controlling the flow of ice
  The collapse of the Larsen B ice shelf had profound effects on the velocities of its feeder glaciers.

Question 8: What does the following picture show?

  The collapse of the Larsen B ice shelf had profound effects on the velocities of its feeder glaciers.
  A cross-section through a glacier. The base of the glacier is more transparent as a result of melting.
  Factors controlling the flow of ice

Question 9: Ice sheet dynamics describe the motion within large bodies of ice, such those currently on Greenland and ________.
Atacama DesertDesertAntarcticaKalahari Desert

Question 10: [6] This explains, for example, the deep profile of ________, which can reach a kilometer in depth as ice is topographically steered into them.
NorwayFjordSound (geography)Denmark







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