Storm surge characteristics and extreme parameters in the Chengshantou sea area

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Jin, Y.D.^1 ; Zhao, X.^1 ; Ma, L.N.^1

First Institute of Oceanography, SOA, Qingdao

266061, China^1

关键词: Advanced circulation models;    Comparison result;    Extratropical cyclones;    Gumbel distribution;    Regional atmospheric modeling systems;    Return periods;    Tropical cyclone;    Wind parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012052/pdf
DOI  :  10.1088/1755-1315/82/1/012052

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Storm surge in the Chengshantou sea area is simulated by the advanced circulation (ADCIRC) model. The Regional Atmospheric Modeling System (RAMS) wind model is used to simulate wind parameters used to be wind force of storm surge model. The comparison results of storm surges show good agreement between simulations and observations. The storm surge is caused by typhoon in summer but extratropical cyclone in winter. By statistical analysis of storm surge in 20 years, it is found that the annual max negative storm surge are all caused by extratropical cyclone while the frequency of annual max positive storm surge caused by tropical cyclone is about 20%. The extreme parameters are estimated by Gumbel distribution. The positive extreme storm surge of 100 year return period is determined as 95 cm and the negative is -124 cm.