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Sikkim's Glacial Threat: 16 Lakes Risk Catastrophe
4 Sep
Summary
- Forty high-hazard glacial lakes identified in Sikkim.
- Sixteen of these lakes pose the highest risk of outburst.
- Sikkim develops a dedicated protocol for glacial flood risk mitigation.
Sikkim has identified 40 glacial lakes posing high hazards, with 16 classified as Category A due to their extreme risk of sudden outbursts. This proactive measure follows a severe Glacial Lake Outburst Flood (GLOF) in October 2023, which resulted in at least 60 fatalities and widespread destruction across multiple districts.
The state is pioneering the nation's first dedicated GLOF Risk Mitigation Protocol. This initiative aims to establish a standardized scientific framework for assessing, preparing for, and mitigating glacial flood risks, potentially serving as a model for other Himalayan regions.
Remote sensing and satellite imagery are being utilized for ongoing monitoring of these glacial lakes. Field studies are comprehensive, including water-level monitoring, geophysical surveys, bathymetry, and hazard assessment. Mitigation strategies are tailored, with specific proposals for vulnerable areas like the Lhonak Complex and Shako Chho Lake.
The Sikkim government is pursuing a whole-of-government approach, focusing on strengthening institutional, technical, and financial capacities. Additional early-warning sensors are also planned across the state to enhance preparedness for glacial hazards.
