Exam code: 9GE0
Study Figure 2a
Figure 2a
Changing mass balance of the glacier (in metres of water equivalent) of the South Cascade Glacier in North America since 1956
Explain how changes in the mass balance of the glacier will affect the hydrological cycle.
(6)
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Study Figure 2b
Figure 2b
Cross section showing the mass balance of a temperate glacier
Explain the processes that affect the mass balance of temperate glaciers.
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Explain how the glacial mass balance concept contributes to an understanding of glacial systems.
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Explain the importance of ice temperature in understanding the rate of glacial movement.
(8)
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Study Figure 2a.
Explain the contribution of meltwater to the movement of temperate glaciers.
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Study Figure 1.
Explain how the glacial ice shown forms from snow.
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Study Figure 1.
Explain how the glacier shown moves downslope.
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Study Figure 1.
Explain how the glacial budget shown affects the position of the glacier front.
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Study Figure 1.
Explain how the glacier shown can stay the same size over a year.
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Study Figure 1.
Explain how the features shown affect the rate at which the glacier moves.
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Evaluate the view that the rate of glacier movement is mainly determined by variations in the mass balance of a glacier.
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Evaluate the view that basal temperature is the most important factor controlling the rate at which a glacier moves.
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Evaluate the view that mass balance is the most important factor determining whether a glacier advances or retreats.
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