Northeast Desk, 26th June: In an effort to better understand the evolving threats posed by climate change to the Himalayan region, the Sikkim Department of Science and Technology (DST) has initiated a significant two-week scientific expedition to the East Rathong Glacier. This critical mission, which began on June 22nd, 2024, is focused on studying glacier dynamics and the risks associated with Glacial Lake Outburst Floods (GLOFs).
A team of distinguished scientists and researchers from the DST is leading the expedition, equipped with state-of-the-art technology to ensure precise data collection. The East Rathong Glacier, situated in the Gyalshing district within Khangchendzonga National Park at an elevation of 4600-6700 meters, is a primary target due to its potential for GLOF events.
This expedition follows the devastating floods of October 4th, 2023, underscoring the urgent need for comprehensive glacial research. The Sikkim State Climate Change Cell, established under the National Mission for Sustaining the Himalayan Ecosystem (NMSHE), has identified 19 potentially dangerous glacial lakes within Sikkim. The current mission will focus on the East Rathong Glacier and include scientific studies of three high-risk glacial lakes: Rathong Lake, Bhaley Pokhari, and Tikip La Lake.
Key objectives of the expedition include conducting bathymetric surveys of the three vulnerable glacial lakes, installing markers to monitor glacier movement, studying the vertical retreat of the East Rathong Glacier, analyzing the glacio-hydrology of the East Rathong meltwater stream, and upgrading and maintaining the automatic weather station at the glacier.
Dr. Sandeep Tambe, IFS, Secretary of the DST, emphasized the necessity of proactive research in the face of growing climate change threats. “The recent floods serve as a stark reminder of our vulnerabilities,” Dr. Tambe stated. “Expeditions like this are crucial to fulfilling the Sikkim government’s vision of a ‘Sunaulo Sikkim, Samriddha Sikkim’ (Golden Sikkim, Prosperous Sikkim).”
The expedition’s findings are expected to enhance scientific understanding and inform vital policies and strategies for climate change adaptation and disaster risk reduction across the Himalayan region.
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