Impacts of climatological change on storm surge in Zhejiang coastal water

The variations of storm surge during typhoon in Zhejiang costal water based on the data of temperature,tidal height and storm surge in weather stations and tidal stations during the past 50years are described and analysed.The results demonstrate that the rise in sea surface temperature and sea-level will be accompanied by a corresponding increase in the numbers of typhoon,the value of setup,higher than the warning elevation and the extreme annual high tidal elevation.The analysis also reveals that the higher temperature causes the rise of risk of storm surge disaster.With the acceleration of temperature rise the number of typhoon and the frequency of maximum storm surge which is more than 300centimeters have doubled since 2000.Therefore,the disaster risk caused by storm surge in Zhejiang coastal water from the point of the climatological change is analysed.This information would be a value to researcher for future disaster preventing and mitigating and storm surge forecasting.