1 what are the two kinds of glaciers and how are they different?
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There are two primary types of glaciers: Continental: Ice sheets are dome-shaped glaciers that flow away from a central region and are largely unaffected by underlying topography (e.g., Greenland and Antarctic ice sheets); Alpine or valley: glaciers in mountains that flow down valleys.
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Antarctica and the South Pole are land areas covered by ice, whereas the ice around the North Pole in the Arctic is pack ice and ice floes that float on the ocean, surrounded by land masses.
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An ice age is a long period of climatic cooling during which glaciers advance and retreat. ... According to the Milankovitch theory, glacial periods are caused by three different changes in Earth's movement relative to the sun.
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Explanation: In short, large masses of ice (glaciers) at high altitude tend to migrate down mountains. ... Then because of the glaciers weight the material below it begins to be removed. As the material is removed a big pit begins to form and voilà, a cirque!
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Types of glacial landform There are diagnostic landforms associated with wet-based sheet flow, ice streams, and surging ice. Surging glaciers are a particular phenomenon where the ice flows periodically fast and then more slowly, and are uncommon in Antarctica.
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tundra. has sparse vegetation and very cold temperatures. ... has cold winters, heavy snowfall and is dominated by conifers. has warm temperatures and is dominated by grasses.
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An ice cap is a glacier, a thick layer of ice and snow, that covers fewer than 50,000 square kilometers (19,000 square miles). Glacial ice covering more than 50,000 square kilometers (19,000 square miles) is called an ice sheet. An interconnected series of ice caps and glaciers is called an ice field.
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is that permafrost is permanently frozen ground, or a specific layer thereof while frost is a cover of minute ice crystals on objects that are exposed to the air frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing.
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Generally, we distinguish two types of mountains, according to their age. Young mountains, created several dozen million years ago, have steep slopes and high-pointed peaks. ... Old mountains, in contrast, have rounded peaks and slopes made gentler by hundreds of millions of years of erosion.
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While spectacular, Hubbard is just one glacier, whereas Glacier Bay consists of many glaciers; sailing Glacier Bay takes several hours and is an iconic Alaska cruise experience. Hubbard can be hard to get to at certain times of the cruise season when the weather is cold, as ice can block ships from passing too near.
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The most dramatic formations occur on a glacier when it moves downwards on a steep gradient. Fox Glacier has a gradual incline whereas Franz Josef is steeper. The surface of Franz Josef Glacier is full of crevasses and ice caves, where you have a much better chance of seeing the famous blue ice.
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The most basic difference is that sea ice forms from salty ocean water, whereas land ice (ice sheets and glaciers) form from fresh water or snow. Land ice can be labelled as ice sheets whereas sea ice can be labelled as ice shelves. They vary greatly in quantity due to seasonal changes in temperature.
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They're two different shades of white, Ibis is a solid pure white whilst Glacier is more a smoky grey/white, you definitely notice the difference when they're next to each other. This video pretty much sealed it for me aswell, depends on the type of white you're after.
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The main types of depositional landforms are summarised below: Moraines – these are composed of rocky debris that has been removed from the valley sides and floor by weathering and erosion and carried downhill by glaciers.
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Glaciers are found in Arctic areas, Antarctica, and on high mountains in temperate and even tropical climates. Glaciers that extend in continuous sheets and cover a large landmass, such as Antarctica or Greenland, are called ice sheets. If they are similar but smaller, they are termed ice caps.
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The main difference between the two tundra is why each is cold. The alpine tundra is cold because it is so high above Earth's surface. The alpine tundra has no trees. It has grasses and shrubs like the arctic tundra.
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['Mountain glaciers. These glaciers develop in high mountainous regions, often flowing out of icefields that span several peaks or even a mountain range. ... ', 'Valley glaciers. ... ', 'Tidewater glaciers. ... ', 'Piedmont glaciers. ... ', 'Hanging glaciers. ... ', 'Cirque glaciers. ... ', 'Ice aprons. ... ', 'Rock glaciers.']