Original Paper

Natural Hazards

, Volume 70, Issue 1, pp 23-37

Modeling storm surges associated with super typhoon durian in South China Sea

  • Kak Choon LoyAffiliated withDepartment of Mathematics, Faculty of Science and Technology, Universiti Malaysia Terengganu Email author 
  • , Prakash Chandra SinhaAffiliated withInstitute of Oceanography, Universiti Malaysia Terengganu
  • , Juneng LiewAffiliated withMarine Science Program, School of Environmental and Natural Resources Sciences, National University of Malaysia
  • , Fredolin TangangAffiliated withMarine Science Program, School of Environmental and Natural Resources Sciences, National University of Malaysia
  • , Mohd Lokman HusainAffiliated withInstitute of Oceanography, Universiti Malaysia Terengganu

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Abstract

Super typhoon Durian struck the central Philippines on November 30, 2006 and southern coast of Vietnam on December 5, 2006. The reported maximum wind exceeded 250 km/h, and the central pressure was 904 hPa during the peak of the system. The typhoon brought colossal damage, both in terms of lives and in terms of properties to the Philippines and Vietnam while Thailand and Malaysia were slightly affected. The energy from the high-velocity wind and central pressure drop resulted in the generation of storm surges along the coastal region of the Philippines including its surrounding islands as well as parts of southern Vietnam. In this paper, a numerical 2D model is used to study the oceanic response to the atmospheric forcing by 2006 super typhoon Durian in the coastal regions of the Philippines and Vietnam. The initial study of this model aims to provide some useful insights before it could be used as a coastal disaster prediction system in the region of South China Sea (SCS). The atmospheric forcing for the 2D model, which includes the pressure gradient and the wind field, is generated by an empirical asymmetrical storm model. The simulated results of storm surges due to typhoon Durian at two locations lie in the range of observed data/estimates published by the Joint Typhoon Warning Centre (JTWC).

Keywords

Super typhoon durian Numerical 2D model Storm surge Asymmetrical storm model