Hydrological hazard mapping in Rupandehi district, west Nepal

*Megh Raj Dhital

Central Department of Geology, Tribhuvan University, Kathmandu, Nepal

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Rajendra Shrestha

Butwal Power Company Pvt. Ltd, Nepal

Motilal Ghimire

Central Department of Geography, Tribhuvan University, Kathmandu, Nepal

Ghan Bahadur Shrestha, and Dhruba Tripathi

Mountain Risk Engineering Unit, Tribhuvan University, Kathmandu, Nepal

Jour. Nep. Geol. Soc., Vol. 31, 2005, 59-66

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ABSTRACT

Large-scale (1:25,000) integrated hydrological hazard mapping was carried out in the Rupandehi district of west Nepal. The main hazard types in the study area were landslides, debris flows, floods, bank undercutting, and inundation. The maps were prepared on the basis of field observation of damages and hazards as well as using available topographic maps, digital data, satellite imageries, and aerial photographs. The information gathered was digitised and analysed using mainly ArcView and ILWIS GIS systems and HEC-RAS.

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