J. Bhusal, J. L. Nayava, S. Baidya, Bikash Nepal, Wouter Buytaert, Bhanu Neupane
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引用次数: 0
Abstract
Nepal’s rugged topography, unstable young geological formations, and fragile rocks make the country highly vulnerable to water-induced hazards such as landslides, soil erosion, and debris torrents. Hilly watersheds and settlements in hills and river banks are naturally vulnerable during heavy rainfall. The landslide EVO project selected two landslide areas, one the Bajedi landslides in the Bajura district, and another Sunkuda landslides in Bajhang district of Nepal. Automatic rain gauges were installed, and data were recorded for 2019 and 2021. The best-fit trend lines are determined by the observed rainfall depths of different durations. In addition, 24-hour rainfall records and landslide events that occurred in the region outside the pilot areas in the year 2019 were also analyzed and correlated. Rainfall intensities and depths corresponding to maximum, minimum, and average depth are correlated for different durations. The correlation between rainfall depths and durations data showed an excellent fitting observed. The trend line is considered as the rainfall threshold line for landslide risk assessment for the region.
期刊介绍：
MAUSAM (Formerly Indian Journal of Meteorology, Hydrology & Geophysics), established in January 1950, is the quarterly research
journal brought out by the India Meteorological Department (IMD). MAUSAM is a medium for publication of original scientific
research work. MAUSAM is a premier scientific research journal published in this part of the world in the fields of Meteorology,
Hydrology & Geophysics. The four issues appear in January, April, July & October.
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