Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka

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dc.creatorAmarnath, Giriraj
dc.creatorUmer, Yakob
dc.creatorAlahacoon, Niranga
dc.creatorInada, Yoshiaki
dc.date2015
dc.date2016-11-01T13:39:54Z
dc.date2016-11-01T13:39:54Z
dc.date.accessioned2026-06-27T18:30:07Z
dc.descriptionFlood management is adopting a more risk-based approach, whereby flood risk is the product of the probability and consequences of flooding. Two-dimensional flood inundation modeling is a widely used tool to aid flood-risk management. The aim of this study is to develop a flood inundation model that uses historical flow data to produce flood-risk maps, which will help to identify flood protection measures in the rural areas of Sri Lanka. The LISFLOOD-FP model was developed at the basin scale using available historical data, and also through coupling with a hydrological modelling system, to map the inundation extent and depth. Results from the flood inundation model were evaluated using Synthetic Aperture Radar (SAR) images to assess product accuracy. The impacts of flooding on agriculture and livelihoods were analyzed to assess the flood risks. It was identified that most of the areas under paddy cultivation that were located near the middle and downstream part of the river basin are more susceptible to flood risks. This paper also proposes potential countermeasures for future natural disasters to prevent and mitigate possible damages.
dc.identifierhttps://hdl.handle.net/10568/77532
dc.identifier.urihttp://hdl.handle.net/123456789/157772
dc.languageen
dc.publisherCopernicus GmbH
dc.rightsOpen Access
dc.sourceAmarnath, Giriraj; Umer, Yakob Mohammed; Alahacoon, Niranga; Inada, Yoshiaki. 2015. Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka. Proceedings of the International Association of Hydrological Sciences, 370:131-138. doi: https://doi.org/10.5194/piahs-370-131-2015
dc.subjectflood control
dc.subjectwatersheds
dc.subjectriver basins
dc.subjectmodels
dc.subjectsatellite observation
dc.subjectradar satellite
dc.subjectnatural disasters
dc.subjectrisk management
dc.subjecthydraulics
dc.subjectrain
dc.subjectcase studies
dc.titleModelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka
dc.typeJournal Article

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