Catchment-scale flood hazard mapping and flood vulnerability analysis of residential buildings: The case of Khando River in eastern Nepal
To quantify the hazard and vulnerabilities across one of the frequently flooding catchments, i.e. Khando River, the authors of this research conducted flood hazard assessment for 20, 50, 100, and 200 years return periods. The authors coupled flood hazard analysis with a vulnerability analysis of the most dominant construction system along the river channel, i.e. wattle and daub houses.
The flood hazard analysis highlighted that the 2017 flood was equivalent to 20 years return period flood. Flood vulnerability analysis of residential houses along the riverbank highlighted that the wattle and daub construction system is highly vulnerable even for 20 years return period flood. Thus, the floods equivalent to 50, 100, and 200 years may have detrimental consequences in the future.
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