Record Details

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

CGSpace

View Archive Info
 
 
Field Value
 
Title Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka
 
Creator Amarnath, Giriraj
Umer, Yakob Mohammed
Alahacoon, Niranga
Inada, Yoshiaki
 
Subject flood control
watersheds
river basins
models
satellite observation
radar satellite
natural disasters
risk management
hydraulics
rain
case studies
 
Description Flood 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.
 
Date 2015
2016-11-01T13:39:54Z
2016-11-01T13:39:54Z
 
Type Journal Article
 
Identifier Amarnath, 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: http://dx.doi.org/10.5194/piahs-370-131-2015
2199-899X
https://hdl.handle.net/10568/77532
http://www.proc-iahs.net/370/131/2015/piahs-370-131-2015.pdf
https://doi.org/10.5194/piahs-370-131-2015
 
Language en
 
Rights CC-BY-3.0
Open Access
 
Publisher Copernicus GmbH