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The way a glacier moves depends on the relationship between and wastage.?
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∙ 7y ago
accumulation
Emmanuel Bednar
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What situation allows a glaciers size to be maintained?
a glacier has a snowline at the same height as the wastage line.
What is zone of wastage?
The zone of wastage refers to the area of a glacier where more ice is melting or sublimating than is being replenished by snow accumulation. It is typically at the lower end of a glacier where temperatures are warmer, causing increased melting.
What is the equilibrium line of a glacier?
The equilibrium line of a glacier is the boundary where there is an equal balance between the amount of ice gained through snow accumulation and the amount lost through melting or iceberg calving. It divides the accumulation zone (above the equilibrium line) from the ablation zone (below the equilibrium line). Glaciers will advance or retreat depending on the position of their equilibrium line.
What are features left behind glaciers?
The glaciers flows unevenly beneath the surface, and regions of tension and compression build under the brittlesurface. As aresult, large cracks, called crevasses.Some parts of the ice sheets may move out over the ocean and form ice shelves.
Why do glaciers affect the land?
by moving along the groundansw21. At their head catchment area, the glacier will collect the annual snow fall, and commence to move it downwards. This process opens up cracks (bergschrunds) between the snow and the rock, for the rock will be warmer than the snow. (heat from the interior) Into these crevices, sometimes many feet wide, rocks will fall from the mountain above, and water will flow off the day-warmed rocks.2. In the main long body of the glacier there will be occasional steps in the valley bedrock, and there will be steps where a minor glacier branch joins a larger glacier. At these step points, a crevassed ice-fall will form, and again any moraine debris from the surface will become entrained in the ice.These entrained rocks and debris will be ground along the bedrock by the motion of the glacier, and produce a very fine rock flour in the process.Thus at the base of the glacier, we have water from melt, boulders and debris, and rock flour. These will be all ground along by the glacier above. Small and medium boulders will be ground to a rounded form, larger boulders will have their sharper corners ground off, but at any time, much of their body will be embedded in the glacial ice, and they will rotate only slowly. As these are dragged across the bedrock, they will produce the striae - the glacial scratches and gouges in the bedrock.3. Upvalley from the snout of the glacier, is the ablation (wastage) zone, where some of the ice mass will sublimate directly to water vapour, and much will melt. Near the snout, the glacier may be completely covered by rock moraine, and kettle holes will form due to uneven melting. Immediately downvalley of the glacier, a melt lake may form, and this feature is very destructive of the remaining ice. When masses of ice fall into the melt lake, minor tsunami (but ten metres or so high) may be created and these are dangerous to humans.A glacier can move rock from the mountains to the plains hundreds of times faster than simple riverine processes will do.Unlike a river, glacial ice can extend far below the surface level, and (where I live) glacial lakes 300m above sea level have their depth up to 100m below sea level.A fiord glacier may have its bed several hundreds of metres below sea level, the ice breaking off where the fiord enters the sea, and the ice becomes buoyant; and depositing a mound of moraine at the mouth of the fiord.
What situation allows a glaciers size to be maintained?
a glacier has a snowline at the same height as the wastage line.
When does gravity begin to pull a glacier downhill?
Gravity begins acting on a glacier as soon as it accumulates enough mass to exert a downward force. This force causes the glacier to flow downhill under the influence of gravity, typically starting at the point where the glacier accumulates enough ice to overcome friction and begin moving.
What is zone of wastage?
The zone of wastage refers to the area of a glacier where more ice is melting or sublimating than is being replenished by snow accumulation. It is typically at the lower end of a glacier where temperatures are warmer, causing increased melting.
What is Characteristics of glacial movement?
A characteristic of glacial movement is movement depends on the balance between accumulation and wastage.
What is a characteristic of a glacial movement?
A characteristic of glacial movement is movement depends on the balance between accumulation and wastage.
What is the relationship between systems development process and IT project management?
The IT project management is on top of the systems development process and its absence in the systems development process will results to wastage of resources.
What is the equilibrium line of a glacier?
The equilibrium line of a glacier is the boundary where there is an equal balance between the amount of ice gained through snow accumulation and the amount lost through melting or iceberg calving. It divides the accumulation zone (above the equilibrium line) from the ablation zone (below the equilibrium line). Glaciers will advance or retreat depending on the position of their equilibrium line.
What is Different between self pollination and cross pollination?
In cross pollination there is wastage of pollen grains , but in self pollination there is no wastage of pollen grains.
What is solid wastage?
anything that's not liquid wastage.
How many jeans can you make with 500 meters?
It depends on the width of the fabric and how good your cutter is (in terms of minimising wastage).
What syllable is stressed in the word wastage?
Wastage is accented on the first syllable.
What are disadvantages of graphical representation?
It is just a wastage of time.
