Estimate of the extreme wave height in the South China Sea using GPD method

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Cao, H.J.^1 ; Yi, F.^2 ; Feng, W.B.^2

College of Oceanography, Hohai University, Nanjing

210098, China^1

College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing

210098, China^2

关键词: Engineering design;    Extreme wave heights;    Generalized Pareto distribution;    Human activities;    Statistics analysis;    Threshold parameters;    Tropical cyclone;    Wave simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052035/pdf
DOI  :  10.1088/1755-1315/189/5/052035

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The South China Sea (SCS) experiences severe typhoon impact every year. That also cause extreme wind waves. The estimate of extreme wave height is of great importance for human activities in the SCS. Since the generation of typhoon is still unpredictable, it is very difficult to estimate the storm waves. In this paper, we did a statistics analysis of the tropical cyclones that can affect the SCS. Based on a hindcast wave simulation, we use the generalized Pareto distribution (GPD) method to estimate the extreme wave height, and discuss the determination of threshold parameters. It is found that GPD method is a more favourable method for the estimation of extreme wave height of storm waves, which is of great significance for ocean engineering design.