• UGI USER
  • Apr 04, 2024
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RISK FROM GLACIAL LAKE FLOODS

Why in the news?

Glacial Lake Outburst Flood (GLOF) risks in Uttarakhand prompt expert teams’ assessment amid climate change concerns.

source:IE
What is Glacial Lake Outburst Flood (GLOF) ?

  • GLOF is an outburst flood occurring when water dammed by a glacier or moraine is released.

Types of Glacial Lakes:

  • Marginal Lake: Dammed by the front of a glacier.
  • Sub-glacial Lake: Capped by the glacier.

Terminology:

  • Marginal Lake Burst: Also known as marginal lake drainage.
  • Sub-glacial Lake Burst: Known as Jaokulhlaup.

Main Features of GLOFs:

  • Sudden and sometimes cyclic water releases.
  • Rapid events lasting hours to days.
  • Result in significantly increased downstream river discharges.

source: https://indianexpress.com/article/explained/explained-climate/risk-from-glacial-lake-floods-9249967/#:~:text=GLOFs%20can%20unleash%20large%20volumes,loss%20of%20life%20and%20livelihoods.