开展台风风暴潮淹没研究是我国风暴潮防灾减灾领域的重要需求。本申请围绕风暴潮淹没能量开展研究工作，深入讨论淹没能量的演化机制，并给出其定量规律。研究计划实施过程中，将运用理论分析（量纲分析和尺度分析）和数值分析（改进的风暴潮-海浪耦合计算模式和动态模态分解）方法，对比讨论理想地形和东南沿海地区风暴潮淹没能量的相关结果，以期获得：近岸区风暴增水、海浪和风暴潮流相关能量的生成、转换与耗散机制及空间模态特征；讨论淹没区淹没能量的输运与耗散行为；给出淹没能量总量和平均能量密度的标度律等定量规律。相关结果可为探索构建基于淹没能量的风暴潮淹没灾害评估方法提供理论支持。

The study of the storm surge inundation is a major demand in the area of prevention and reduction of the losses caused by storm surge. This proposal focuses on the mechanisms and laws of the inundation energy caused by the storm surge. Using theoretical analysis (dimensional analysis and scaling analysis) and numerical analysis (based on the improved storm surge-wave coupled model and the dynamic mode decomposition method), this proposal will investigate the inundation energy of the storm surge on the idealized landform and Southeast China coast to understand the mechanisms and features of the generation, transition and dissipation of the energy of the storm surge, wave and current in the nearshore region, to figure out the transportation and dissipation of the inundation energy in the inundation region, and to obtain the scaling laws of the amount and mean density of inundation energy. Those above-mentioned results will be a basis to develop the inundation energy-based hazard assessment method.