Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka
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...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Copernicus GmbH
2015
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/77532 |
| _version_ | 1855523575140712448 |
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| author | Amarnath, Giriraj Umer, Yakob Alahacoon, Niranga Inada, Yoshiaki |
| author_browse | Alahacoon, Niranga Amarnath, Giriraj Inada, Yoshiaki Umer, Yakob |
| author_facet | Amarnath, Giriraj Umer, Yakob Alahacoon, Niranga Inada, Yoshiaki |
| author_sort | Amarnath, Giriraj |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| 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. |
| format | Journal Article |
| id | CGSpace77532 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Copernicus GmbH |
| publisherStr | Copernicus GmbH |
| record_format | dspace |
| spelling | CGSpace775322025-12-02T10:59:51Z Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka Amarnath, Giriraj Umer, Yakob Alahacoon, Niranga Inada, Yoshiaki flood control watersheds river basins models satellite observation radar satellite natural disasters risk management hydraulics rain case studies 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. 2015 2016-11-01T13:39:54Z 2016-11-01T13:39:54Z Journal Article https://hdl.handle.net/10568/77532 en Open Access Copernicus GmbH 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: https://doi.org/10.5194/piahs-370-131-2015 |
| spellingShingle | flood control watersheds river basins models satellite observation radar satellite natural disasters risk management hydraulics rain case studies Amarnath, Giriraj Umer, Yakob Alahacoon, Niranga Inada, Yoshiaki Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka |
| title | Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka |
| title_full | Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka |
| title_fullStr | Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka |
| title_full_unstemmed | Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka |
| title_short | Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka |
| title_sort | modelling the flood risk extent using lisflood fp in a complex watershed case study of mundeni aru river basin sri lanka |
| topic | flood control watersheds river basins models satellite observation radar satellite natural disasters risk management hydraulics rain case studies |
| url | https://hdl.handle.net/10568/77532 |
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