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Glacial lakes UPSC NOTE

 Why in news

  • With the monsoon season setting in, the Uttarakhand State Disaster Management Department (USDMA) is set to do a vulnerability study of the 13 glacial lakes, five of them in “high risk zone” from the coming month. 

  • The study aims to provide data to help avoid calamities such as lake outbursts.

Glacial lakes

  • Glacial lakes are formed in depressions on glaciers or in moraines left by retreating glaciers. 

  • They take shape as glaciers carve out the landscape through erosion and then melt, filling the depressions formed by their movement.

  • Glacial lakes are classified into four main types 

    • Moraine-dammed (water dammed by moraine) 

    • Ice-dammed (water dammed by ice), 

  • Erosion (water dammed in depressions formed by erosion), 

  • other glacial lakes

Associated issues

  • Glacial Lake Outburst Flood (GLOF) : refers to the sudden release of a significant amount of water from a glacier-dammed lake, often triggered by events like avalanches, earthquakes, or glacier melting

    • Infrastructure Damage

    • Ecosystem Disruption

    • Agricultural Losses

    • Human Vulnerability



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Glacial lakes UPSC NOTE
Glacial lakes UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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