在进入广西境内的典型台风来临和运动过程中，对广西沿海主要的四个港湾（铁山、北海、钦州和防城）增减水位进行同步实时监测；根据台风传入路径、台风半径和地形等因素，研究四个港湾风暴潮增减水过程、极值与港湾底形、摩擦因子和港湾水体固有振动周期之间的关系；结合历史资料分析，阐明广西港湾风暴潮增减水异常变化及其形成机制；应用典型个例分析，并结合数值计算方法，建立适合北部湾及广西主要港湾的风暴潮增减水位与台风浪耦合嵌套模型，以提高风暴增水预测的时效、精度和分辨率，为广西沿海地区海洋经济开发、人民生命安全和国家财产保护以及各级政府制定沿海防潮减灾对策提供理论依据。

During a typical typhoon coming and moving into the Guangxi province, the water level fluctuation of the four Guangxi coastal bays such as Tieshang, Beihai, Qinzhou and Fangcheng will be synchronize real time monitored. Base on the typhoon incoming path, typhoon radius, terrain and other factors, we will study the process of water level fluctuation caused by storm surge , the relation between the extreme value and bay terrain, and the relation between the friction factor and the bay natural period of vibration in four bays. Combined with historical data, clarify the anomalies of the water level fluctuation caused by storm surge and its formation mechanism. Meanwhile, for improving the timeliness, accuracy and resolution of the storm surge prediction,we will establish a nested model coupled the water level fluctuation of storm surge with typhoon wave to fit the Beibu gulf and the main bays of Guangxi, by analyzing the typical cases and using numerical methods. The research results will provide theoretical basis for the marine economic development of coastal areas of Guangxi, people's lives and state protection, and making counter measures of coastal moisture proof and disaster reduction for government.