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ISRO study revealed the flood was triggered by the sudden collapse of an exposed ice patch within the nivation zone of the Srikanta Glacier.
Flash floods were triggered in the high altitude villages of Dharali in August 2025. (File)
In a recent study, scientists from the Indian Space Research Organisation (ISRO) have pinpointed an overlooked hazard in snow-covered areas as the cause of the flash flood that ravaged parts of Uttarkashi in August last year.
The devastating flash flood in Dharali, located in the Uttarkashi region of the Central Himalayas, led to significant damage and loss of life. According to the study, the flood was triggered by the sudden collapse of an exposed ice patch within the nivation zone of the Srikanta Glacier.
Nivation zones are areas in high mountains where glaciers undergo seasonal freezing, thawing, and melt-water movement. These processes break down rocks and transport debris, often resulting in the formation of steep-walled, bowl-like basins due to erosion.
March 07, 2026, 11:11 IST
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