Hindcasting the typhoon haiyan storm surge in coastal eastern leyte  

作　　者：Jeferson Zerrudo Sharon Juliet Arruejo 

机构地区：[1]Department of Science and Technology-Philippine Atmospheric,Geophysical,and Astronomical Services Administration(DOST-PAGASA),Quezon City,Philippines

出　　处：《Tropical Cyclone Research and Review》2024年第4期293-327,共35页热带气旋研究与评论(英文版)

基　　金：supported by the Department of Science and Technology-Philippine Atmospheric,Geophysical,and Astronomical Services Administration(DOST-PAGASA)。

摘　　要：This study introduces the‘Zero-Point Boundary’method to map the 2013 Typhoon Haiyan storm surge in coastal eastern Leyte.Utilising the‘Rivera Dispersive Wave Model’or RDM,we interpolated simulated storm surge and wave height data,subtracting them from a 5-m resolution digital terrain model raster provided by the National Mapping and Resource Information Authority(NAMRIA)to determine inundation limits and depths relative to the average Filipino male height(i.e.,165 cm).Validation against the 2013 joint survey conducted by the Japan Society of Civil Engineers(JSCE)and the Philippine Institute of Civil Engineers(PICE)showed an 81%accuracy rate when identifying water limit locations in Tacloban City,suggesting potential for future forecasting.However,the absence of compoundflooding consideration in the simulations may have influenced this rate.Overall,this study underscores the importance of accurate modelling and communication in hazard mapping for enhancing preparedness and mitigation efforts,emphasising a balanced approach to risk perception.

关 键 词：Hindcast mapping Zero-point boundary method Typhoon haiyan Storm surge inundation Coastal eastern leyte Rivera dispersive wave model JSCE-PICE joint survey Hazard mapping Safety buffer 

分 类 号：P44[天文地球—大气科学及气象学]