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

Y.M. Umer, Giriraj Amarnath, Niranga Alahacoon, Inada Yoshiaki

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

6 Citations (Scopus)

Abstract

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.
Original languageEnglish
Title of host publicationProceedings of the International Association of Hydrological Science (IAHS)
PublisherCopernicus
Chapter370,2015
Pages131-138
Number of pages8
Volume370
DOIs
Publication statusPublished - 11 Jun 2015
EventChanges in Flood Risk and Perception in Catchments and Cities at the 26th IUGG General Assembly - 26th IUGG General Assembly, Prague, Czech Republic
Duration: 22 Jun 20152 Jul 2015
Conference number: Code 117595

Publication series

NameProceedings of the IAHS
PublisherInternational Association of Hydrological Sciences (IAHS)
Volume370

Conference

ConferenceChanges in Flood Risk and Perception in Catchments and Cities at the 26th IUGG General Assembly
Abbreviated titleHS01
CountryCzech Republic
CityPrague
Period22/06/152/07/15

Fingerprint

river basin
watershed
modeling
flooding
hydrological modeling
natural disaster
rural area
synthetic aperture radar
agriculture
damage
basin

Keywords

  • ITC-GOLD

Cite this

Umer, Y. M., Amarnath, G., Alahacoon, N., & Yoshiaki, I. (2015). Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka. In Proceedings of the International Association of Hydrological Science (IAHS) (Vol. 370, pp. 131-138). [117595] (Proceedings of the IAHS; Vol. 370). Copernicus. https://doi.org/10.5194/piahs-370-131-2015
Umer, Y.M. ; Amarnath, Giriraj ; Alahacoon, Niranga ; Yoshiaki, Inada. / 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 Science (IAHS). Vol. 370 Copernicus, 2015. pp. 131-138 (Proceedings of the IAHS).
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title = "Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka",
abstract = "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.",
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Umer, YM, Amarnath, G, Alahacoon, N & Yoshiaki, I 2015, Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka. in Proceedings of the International Association of Hydrological Science (IAHS). vol. 370, 117595, Proceedings of the IAHS, vol. 370, Copernicus, pp. 131-138, Changes in Flood Risk and Perception in Catchments and Cities at the 26th IUGG General Assembly, Prague, Czech Republic, 22/06/15. https://doi.org/10.5194/piahs-370-131-2015

Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka. / Umer, Y.M.; Amarnath, Giriraj; Alahacoon, Niranga; Yoshiaki, Inada.

Proceedings of the International Association of Hydrological Science (IAHS). Vol. 370 Copernicus, 2015. p. 131-138 117595 (Proceedings of the IAHS; Vol. 370).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AB - 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.

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Umer YM, Amarnath G, Alahacoon N, Yoshiaki I. Modelling the flood-risk extent using LISFLOOD-FP in a complex watershed: case study of Mundeni Aru River Basin, Sri Lanka. In Proceedings of the International Association of Hydrological Science (IAHS). Vol. 370. Copernicus. 2015. p. 131-138. 117595. (Proceedings of the IAHS). https://doi.org/10.5194/piahs-370-131-2015