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Glacial Lake Flood Risk in Himalayan Basin

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Glacial lake outburst floods (GLOFs) pose significant hazards in transboundary Himalayan basins under current and future climate conditions. Research led by Allen, S. K. and colleagues has examined GLOF risk in Himachal Pradesh, India, employing an integrative approach that considers present and projected threats. Studies across the Tibetan Plateau and Mount Everest region reveal widespread potentially dangerous glacial lakes, with warming temperatures accelerating glacier retreat and lake expansion. Multi-temporal satellite data since the 1960s show pronounced High Mountain Asian glacier response to climate change, increasing flood potential. Events such as the 2021 rock-ice avalanche in Chamoli, Indian Himalaya underscore the urgency of monitoring slope stability. Researchers including Bolch, T., Cook, K. L., and Benn, D. I. have contributed foundational assessments of debris-covered glaciers and fluvial erosion driven by GLOFs. Automated and remote sensing techniques now enable large-scale hazard mapping, supporting anticipatory risk management in data-scarce, transboundary regions.

Key findings emphasize the need for coordinated early warning systems and cross-border collaboration to mitigate escalating GLOF risks.

Future projections indicate heightened frequency and magnitude of outburst events, demanding sustained scientific attention and policy integration.