Cirque glacier in the context of "Shebenik National Park"

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⭐ Core Definition: Cirque glacier

A cirque glacier is formed in a cirque, a bowl-shaped depression on the side of or near mountains. Snow and ice accumulation in corries often occurs as the result of avalanching from higher surrounding slopes.If a cirque glacier advances far enough, it may become a valley glacier. Additionally, if a valley glacier retreats enough that it is within the cirque, it becomes a cirque glacier again.

In these depressions, snow persists through summer months, and becomes glacier ice. Snow may be situated on the leeward slope of a mountain, where it is sheltered from wind. Rock fall from above slopes also plays an important role in sheltering the snow and ice from sunlight. If enough rock falls onto the glacier, it may become a rock glacier.

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👉 Cirque glacier in the context of Shebenik National Park

Shebenik National Park (Albanian: Parku Kombëtar i Shebenikut) is a national park in eastern Albania adjacent to the border with North Macedonia. It encompasses 34,507.9 hectares (345.079 km) and is specifically marked by a mountainous landscape supplied with glacial lakes, valleys, dense coniferous and deciduous forests and alpine meadows and pastures. Elevations in the park vary from 300 metres to over 2,200 metres above the Adriatic at the peak of Shebenik and Jabllanica, hence the name. It dwells a number of endangered species that are fast becoming rare in Southern Europe, including the brown bear, gray wolf and Balkan lynx. The abundance in wildlife can in part be explained by the variety of vegetation types and remote location.

The park offers some of the most rugged scenery in the eastern section of country that were carved into their present shapes by the glaciers of the last ice age. It is home to 14 glacial lakes, the highest situated between 1,500 and 1,900 metres elevation above the Adriatic. Small cirque glaciers are fairly common in the mountain ranges, situated in depressions on the side of many mountains. Two rivers flow and multiple smaller water sources flow through the park's area including the rivers of Qarrishte and Bushtrice, both of which are 22 km long. The park area is thought to contain one of the primary remaining ranges of the Balkan lynx, a subspecies of the Eurasian lynx.

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Cirque glacier in the context of Valley glacier

Glacier morphology, or the form a glacier takes, is influenced by temperature, precipitation, topography, and other factors. The goal of glacial morphology is to gain a better understanding of glaciated landscapes and the way they are shaped. Types of glaciers can range from massive ice sheets, such as the Greenland ice sheet, to small cirque glaciers found perched on mountain tops. Glaciers can be grouped into two main categories:

  • Ice flow is constrained by the underlying bedrock topography
  • Ice flow is unrestricted by surrounding topography
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