中文摘要：

分析了新奥尔良的地理环境，概述了卡特里娜飓风与丽塔飓风及其对新奥尔良的影响。简述了华南沿海的台风暴潮灾害情况，提出了新奥尔良飓风灾难对华南沿海的几点警示：（1）加强提高防御台风暴潮灾害的认识：（2）保护好沿海抗御台风暴潮的“前沿阵地；（3）加强和完善防台风暴潮应急预案；（4）应对台风暴潮要充分考虑全球环境变化。

英文摘要：

The city of New Orleans in the United States, suffers from the frequent disasters of hurricane storm surges. Its most areas are below sea level and the innate disadvantage makes it vulnerable to hurricanes. On August 29, 2005, hurricane Katrina attacked the city and caused a total economic lost of about $ 75 billion, almost double the previously most expensive storm, Hurricane Andrew in 1992, that has made Katrina the most destructive and costliest natural disaster in the history of the United States. The coastal area of South China is prone to typhoon disasters. It is important for the metropolitan areas in South China to learn lessons from New Orleans, from which some measures are suggested ： 1 ） strengthen the consciousness of prevention of typhoon storm surge disasters ; 2） protect the beach foreland which stands up against typhoon storm surge ; 3 ） intensify and improve emergency plan of preventing typhoon storm surge; 4 ） take global environment change into consideration in coping with typhoon storm surge hazards.