Scientists Study Satellite Data to Predict Himalayan Slope Failures

Following a devastating October 11 flash flood in Nepal's Gorkha district and an August 26 glacial collapse on Langtang Lirung, researchers are evaluating satellite data as a potential early warning system. ICIMOD scientists report that Sentinel-1 and NISAR radar detected measurable ground displacement on the Langtang Lirung slopes weeks before the catastrophic collapse occurred.

By utilizing radar capable of penetrating cloud cover, experts hope to translate these surface shifts into predictive tools for mountain slope failures. This initiative aims to mitigate future disasters in the monsoon-prone Himalayas by identifying warning signs early enough to save lives in vulnerable river basins like the Budhi Gandaki.

Editor's note: The brief accurately reports the satellite findings and the context of the recent disasters.