A numerical study of hydrodynamic characteristics and hydrological processes in the coastal wetlands during extreme events
作者机构：College of Ocean Science and EnvironmentDalian Ocean UniversityDalian116023China Technology Innovation Center for Coastal Ecological Environment and Disaster ProtectionLiaoning ProvinceDalian116023China National Marine Environmental Monitoring CenterDalian116023China
出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)
年 卷 期：2023年第35卷第5期
页 面：963-979页
核心收录：
学科分类：07[理学] 0707[理学-海洋科学] 0837[工学-安全科学与工程] 0706[理学-大气科学]
基 金：Project supported by the National Natural Science Foundation of China(Grant Nos.U21A20155 51879028)
主 题：FVCOM circulation model Parametric typhoon model coastal wetlands storm surge hydrological process
摘 要：Providing accurate predictions of extreme water levels through numerical simulation has become essential for disaster prevention and damage mitigation in coastal wetland *** study applies the FVCOM model to simulate storm surges caused by several typhoons in the Bohai Sea and the North Huanghai *** vegetation drag force caused by salt marsh plants is inserted into the FVCOM model for model improvement with vegetation effect by integrating RS and GIS technologies.A parametric typhoon model is coupled with background wind fields derived to acquire the spatio-temporal variations of wind and pressure fields in the computational *** simulation results reproduce the extreme storm surges induced by typhoon events very *** modeling results are compared by validating with literature results to examine the effect of vegetation on tidal waves in tidal mud ***,the coupled model is also applied to explore storm surge attenuation and land intrusion during Typhoon Winnie in the wetlands of the Liao River *** simulation results indicate that salt marsh plants can reduce the flow current with little impact on tide flooding/ebbing in vegetated ***,the results show that typhoon presence increases the inundation depth and extendes the flood time in the tidal wetlands of the study *** FVCOM model incorporating the method with vegetation drag force can provide new insights to understand the comprehensive impact of tidal wetland plants on hydrodynamic characteristics in the Bohai Sea and other waters,hence presents a more accurate quantification of the hydrological process of storm surge in the tidal wetlands.
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