Table of Contents
Can glaciers form at the equator?
Several glaciers exist near the equator at high elevations in the Indonesian province of Papua. NASA has documented decades of retreat from these glaciers. Some have lost all their ice, while others are retreating rapidly.
Where do glaciers form?
Glaciers begin forming in places where more snow piles up each year than melts. Soon after falling, the snow begins to compress, or become denser and tightly packed. It slowly changes from light, fluffy crystals to hard, round ice pellets. New snow falls and buries this granular snow.
Are there glaciers in the North Pole?
Glaciers are located in the Arctic and Antarctica, with the largest glaciers appearing in Antarctica. Only the larger continental glaciers create icebergs, as it typically does not happen that a mountain glacier releases an iceberg into the sea.
What conditions allow glaciers to form?
Glaciers begin to form when snow remains in the same area year-round, where enough snow accumulates to transform into ice. Each year, new layers of snow bury and compress the previous layers. This compression forces the snow to re-crystallize, forming grains similar in size and shape to grains of sugar.
What Glacier is closest to the equator?
That’s the glaciers on Ecuador’s Mount Cayambe, which rises at a latitude of 0o1’30″N, or less than 170 kilometres north of the equator.
Why is glacier water so blue?
Glacial ice is a different color than regular ice. It is so blue because the dense ice of the glacier absorbs every other color of the spectrum except blue, so blue is what we see. Photo by Hambrey.
What are two main types of glaciers?
What types of glaciers are there?
- 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.
What is the oldest glacier?
How old is glacier ice?
- The age of the oldest glacier ice in Antarctica may approach 1,000,000 years old.
- The age of the oldest glacier ice in Greenland is more than 100,000 years old.
- The age of the oldest Alaskan glacier ice ever recovered (from a basin between Mt. Bona and Mt. Churchill) is about 30,000 years old.
Where would you find a glacier?
Most of the world’s glacial ice is found in Antarctica and Greenland, but glaciers are found on nearly every continent, even Africa.
How are alpine glaciers different from mountain glaciers?
Alpine glaciers are also called valley glaciers or mountain glaciers. Ice sheets, unlike alpine glaciers, are not limited to mountainous areas. They form broad domes and spread out from their centers in all directions.
How are glaciers different from other ice sheets?
Glaciers are classified by their size (i.e. ice sheet, ice cap, valley glacier, cirque glacier), location, and thermal regime (i.e., polar vs. temperate). Glaciers are sensitive indicators of changing climate.
Where is most accumulation of glacial ice found?