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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 15, issue 7 | Copyright

Special issue: Monitoring and modelling to guide coastal adaptation to extreme...

Nat. Hazards Earth Syst. Sci., 15, 1473-1481, 2015
https://doi.org/10.5194/nhess-15-1473-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 02 Jul 2015

Research article | 02 Jul 2015

Identification of storm surge vulnerable areas in the Philippines through the simulation of Typhoon Haiyan-induced storm surge levels over historical storm tracks

J. P. Lapidez1, J. Tablazon1, L. Dasallas1, L. A. Gonzalo1, K. M. Cabacaba1, M. M. A. Ramos1, J. K. Suarez1, J. Santiago1, A. M. F. Lagmay1,2, and V. Malano3 J. P. Lapidez et al.
  • 1Nationwide Operational Assessment of Hazards, Quezon City, Philippines
  • 2National Institute of Geological Sciences, University of the Philippines-Diliman, Quezon City, Philippines
  • 3Philippine Atmospheric, Geophysical and Astronomical Services Administration, Quezon City, Philippines

Abstract. Super Typhoon Haiyan entered the Philippine Area of Responsibility (PAR) on 7 November 2013, causing tremendous damage to infrastructure and loss of lives mainly due to the storm surge and strong winds. Storm surges up to a height of 7 m were reported in the hardest hit areas. The threat imposed by this kind of natural calamity compelled researchers of the Nationwide Operational Assessment of Hazards (Project NOAH) which is the flagship disaster mitigation program of the Department of Science and Technology (DOST) of the Philippine government to undertake a study to determine the vulnerability of all Philippine coastal communities to storm surges of the same magnitude as those generated by Haiyan. This study calculates the maximum probable storm surge height for every coastal locality by running simulations of Haiyan-type conditions but with tracks of tropical cyclones that entered PAR from 1948–2013. One product of this study is a list of the 30 most vulnerable coastal areas that can be used as a basis for choosing priority sites for further studies to implement appropriate site-specific solutions for flood risk management. Another product is the storm tide inundation maps that the local government units can use to develop a risk-sensitive land use plan for identifying appropriate areas to build residential buildings, evacuation sites, and other critical facilities and lifelines. The maps can also be used to develop a disaster response plan and evacuation scheme.

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