Question Q.4Discuss with examplesGS1GS1
What factors can be attributed to the rising incidents of Glacial Lake Outburst Floods (GLOFs) in the Himalayan region? Discuss with examples.
Introduction
Glacial lake outburst floods occur when the capacity of dams formed by glacial moraines to hold melted glacier water exceeds the water inflow causing the dam to break.
28 words
Main Body
Factors causing GLOF in Himalayan region
1Rising temperatures due to global warming causing faster melting of glacial ice in summer season. [illegible] Kedaranth 2013 sikkim loknak lake.
2High rainfall in himalayan region increasing the water in glacial lakes. Ex. 2013 Kedaranth
3Landslides and avalanches in the mountainous regions causing GLOF.
4Earthquake tremors can disturb the moraine dams. Himalayas are historically active and formed by younger sedimentary deposits unfinished infrastructure development
5GLOF can have disastrous impacts on downstream regions - EX. destruction of infrastructure (ex. dam washed away on Teesta Rivers) in Sikkim loss of lives & livelihoods, cattle, brain diseases etc.
106 words5 paragraphs
- Clear definition of GLOF mechanism
- Specific geographical focus on Himalayan region
- Connects to global warming
Topper
Ritu Goyal
AIR 223
Subject & Paper
GS1GS1
Topic
Important Geophysical Phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.
Geophysical phenomena and natural disasters
Glacial Lake Outburst Floods
Writing Stats
134
Total words
5
Paragraphs