What are the key geomorphological and climatic drivers of glacial lake formation in the Himalayas? Examine the challenges in identifying potentially dangerous lakes. Suggest suitable measures to address these challenges.
Kartavya Desk Staff
Topic: Changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.
Topic: Changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.
Q2. What are the key geomorphological and climatic drivers of glacial lake formation in the Himalayas? Examine the challenges in identifying potentially dangerous lakes. Suggest suitable measures to address these challenges. (15 M)
Difficulty Level: Medium
Reference: DTE
Why the question: Hindu Kush Himalayas are experiencing an alarming rise in glacial-origin floods, according to scientists from the International Centre for Integrated Mountain Development (ICIMOD). Key Demand of the question: The answer must explain both the geomorphological and climatic causes behind glacial lake formation, examine technological and institutional challenges in identifying risky lakes, and suggest practical measures to mitigate the emerging hazard. Structure of the Answer: Introduction Mention the rising frequency and intensity of GLOFs in the Himalayas due to cryospheric instability, threatening millions downstream. Body Briefly explain how geomorphological factors like glacier retreat, moraine damming, and debris accumulation, along with climatic factors like sustained warming, heatwaves, and permafrost thaw, contribute to glacial lake formation. Examine the key challenges in identifying dangerous lakes, such as low-resolution satellite imaging, rapidly evolving supraglacial lakes, inaccessibility of high-altitude terrains, outdated risk models, and lack of cross-border coordination. Suggest actionable measures including adoption of high-resolution remote sensing and AI tools, dynamic risk mapping, community-based early warning systems, and transnational data sharing frameworks. Conclusion Stress the need for anticipatory, science-driven risk governance to prevent glacial hazards from becoming climate disasters in the Himalayan region.
Why the question: Hindu Kush Himalayas are experiencing an alarming rise in glacial-origin floods, according to scientists from the International Centre for Integrated Mountain Development (ICIMOD).
Key Demand of the question: The answer must explain both the geomorphological and climatic causes behind glacial lake formation, examine technological and institutional challenges in identifying risky lakes, and suggest practical measures to mitigate the emerging hazard.
Structure of the Answer:
Introduction Mention the rising frequency and intensity of GLOFs in the Himalayas due to cryospheric instability, threatening millions downstream.
• Briefly explain how geomorphological factors like glacier retreat, moraine damming, and debris accumulation, along with climatic factors like sustained warming, heatwaves, and permafrost thaw, contribute to glacial lake formation.
• Examine the key challenges in identifying dangerous lakes, such as low-resolution satellite imaging, rapidly evolving supraglacial lakes, inaccessibility of high-altitude terrains, outdated risk models, and lack of cross-border coordination.
• Suggest actionable measures including adoption of high-resolution remote sensing and AI tools, dynamic risk mapping, community-based early warning systems, and transnational data sharing frameworks.
Conclusion Stress the need for anticipatory, science-driven risk governance to prevent glacial hazards from becoming climate disasters in the Himalayan region.