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What are some external forces of a glacier?
Some external forces acting on a glacier include temperature, precipitation (snowfall), wind, and sunlight. These factors can influence the accumulation, melting, and movement of glacial ice.
What is A period when ice collects in high latitudes and move to lower latitudes is an?
An ice age. During an ice age, there is an accumulation of ice at the polar regions which then moves towards lower latitudes due to the Earth's climate and atmospheric conditions. This results in glaciation and the formation of ice sheets and glaciers in areas that are typically not covered in ice.
Where do glaciers grow and how do they grow?
Glaciers usually grow in Alaska. Though they are found in mountain ranges. The weirdest part is glaciers can grow in every single continent but, Australia. In the tropics glaciers occur only on high mountains.
What represents a former meltwater channel or tunnel in glacial ice that was filled with sand and gravel?
A kettle hole is a depression or hole in a glacial outwash plain that is formed by the melting of a large block of glacial ice buried in drift.
Where was the thickest ice sheet in the laurentide?
The thickest ice sheet in the Laurentide Ice Sheet was centered over northern Canada, particularly in regions like Quebec and the Hudson Bay area. This region experienced the greatest ice accumulation during the peak of the last glacial period.
Where is most accumulation of glacial ice found?
The most accumulation of glacial ice is found in Antarctica. This icy continent holds about 90% of the world's freshwater ice and has an average ice thickness of around 1.6 km (1 mile).
What is the glacial budget?
The glacial budget refers to the overall balance between the accumulation (growth) and ablation (loss) of a glacier's ice and snow. It is an important concept in understanding the behavior and changes of glaciers over time.
Where is most of the earth's water in solid form found?
Glacial ice(A+):P
What is glacial budget?
A glacial budget is essentially the balance of a glacier from the input of snow, ice, and water. Accumulation and loss of ice from melting are all data used to figure this budget.
What is a glacial system?
A glacial system is a complex combination of glaciers, ice sheets, ice caps, and icebergs. It involves the movement of ice and snow, as well as the processes of accumulation and ablation of ice. Glacial systems play a crucial role in shaping the Earth's landscape and influencing global climate patterns.
What is a glacial budget?
A glacial budget is the balance between the accumulation (formation of snow and ice) and ablation (loss of ice through melting, sublimation, or calving) of a glacier. It is an essential concept in understanding how glaciers grow, shrink, or remain stable over time. Monitoring changes in the glacial budget helps scientists assess the impacts of climate change on glaciers.
What is the root word of glacial?
The root word of "glacial" is "glacier," which refers to a slowly moving mass of ice formed by the accumulation and compaction of snow over long periods of time.
Is glacial ice different from regular ice?
Yes, glacial ice is formed over a long period by the accumulation and compaction of snow, which results in a denser and clearer ice compared to regular ice formed in water bodies. Additionally, glacial ice may contain air bubbles, dust, and other particles trapped during the freezing process, giving it a distinctive appearance.
Can glacial ice form during the duration of a single winter season in most glacial areas?
No
How does the glacial budget control the migration of the equilibrium line?
The glacial budget, which consists of accumulation and ablation of ice mass, directly influences the position of the equilibrium line on a glacier. If accumulation exceeds ablation, the equilibrium line moves towards the glacier's top, leading to glacier advance. Conversely, if ablation exceeds accumulation, the equilibrium line shifts downslope, causing glacier retreat.
How is snow transformed into glacial ice?
Snow is transformed into glacial ice through a process called firnification, where successive layers of snow are compressed under their weight into firn, a compacted snow with some air pockets. Over time, the firn undergoes further compaction and recrystallization, becoming glacial ice. This process can take several decades to centuries depending on the accumulation rate and temperatures.
What is the movement of glacial ice called?
The movement of glacial ice is called glaciation or glacial flow. Glaciers move due to the force of gravity and the deformation of the ice under pressure. This movement can result in the formation of features like moraines, crevasses, and glacial valleys.
