基于ADCIRC水动力模型构建南海海域风暴潮预报模型与典型台风暴潮数值模拟  

Construction of Storm Surge Prediction Model and Numerical Simulation of Typical Storm Surges in the South China Sea Based on ADCIRC Hydrodynamic Model

作　　者：马经广 张云博 MA Jingguang;ZHANG Yunbo(Guangdong Provincial Bureau of Hydrology,Guangzhou 510150,china;Guangdong Haiqixing Marine Technology Co.,Ltd.,Guangzhou 511400,china)

机构地区：[1]广东省水文局,广州510150 [2]广东海启星海洋科技有限公司,广州511400

出　　处：《广东水利水电》2022年第12期29-36,共8页Guangdong Water Resources and Hydropower

摘　　要：基于ADCIRC水动力模型构建了一个适用南海海域的精细化风暴潮预报模型,选用Holland模型提供强迫风场和气压场,开边界潮位采用OTIS(Oregon State University Tidal Inversion Software)的全球潮汐数据结果。选取造成广东省沿海产生严重风暴潮的201319号“天兔”、201415号“海鸥”和201713号“天鸽”等5个典型台风,利用该模型计算台风登陆期间严重影响岸段潮位站的逐时潮位过程,并与实测水位进行比对分析。结果显示:总体上各岸段潮位过程预报平均绝对误差在30 cm以内,计算与实测的高潮位绝对误差满足规范许可误差要求,可为广东省沿海台风暴潮的预警预报提供技术支撑。Based on the ADCIRC hydrodynamic model,a refined storm surge prediction model suitable for the South China Sea is constructed.The Holland model is selected to provide the forced wind field and pressure field,and the open boundary tide level adopts the global tide data results of Otis(Oregon State University tidal inversion software).In this paper,five typical typhoons,such as“USAGI”,“KALMAEGI”and“HATO”,which caused severe storm surges in the Shanwei Raoping bank section,Shenzhen Yangjiang bank section and Maoming Xuwen bank section along the coast of Guangdong Province,are selected.This model is used to simulate the hourly tide level process that seriously affected the representative tide level stations in the bank section during the landing of typhoon winds,and is compared with the measured water level.The results show that,on the whole,the average absolute error of hourly tide level prediction in each bank section is within 30 cm,and the absolute error between the calculated high tide level and the measured high tide level meets the allowable error requirements of the specification,which can provide technical support for the early warning and prediction of typhoon surge along the coast of Guangdong Province.

关 键 词：风暴潮预报模型 ADCIRC水动力模型 南海海域 典型台风 数值模拟 

分 类 号：P731.23[天文地球—海洋科学]