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Coastal Hazard Mapping

The Coast Conservation and Coastal Resource Management Department (CC&CRMD) has completed the project for developing “Coastal Hazard Maps” in collaboration with Disaster Management Centre (DMC) for four hazards namely Tsunami, Storm Surges, Coastal Erosion and Sea Level Rise. The Engineering Design Centre of University of Peradeniya provided the support for numerical modeling and United Nations Development Program (UNDP) provided the financial support.

The primary objectives of the project were to carry out hazard assessments in connection with the four natural coastal hazards and prepare the hazard maps for the Island coastal regions indicating the hazard levels. As sufficiently comprehensive data were not available to carry out probabilistic analyses, it was employed the deterministic (scenario-based) approach together with numerical model simulations to assess the degree of hazard to the coastal regions from each of the aforementioned four coastal hazards. Previously validated numerical models were employed to simulate the impact of tsunami and storm surges for selected maximum-credible hazard scenarios. Coastal erosion trends were assessed based primarily on available historical data and previous studies. GIS modeling tools have been employed to simulate the impact of sea level rise on coastal lands over different time horizons. Field validations of hazard maps, where required, were also carried out. The final results/maps are published in downloadable formats in the DMC web site. The link is below mentioned.

Last Updated on Friday, 17 July 2015 05:23

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