Tropical cyclones are among the most devastating natural disasters that pose risk to people and assets all around the globe. The Saffir-Simpson scale is commonly used to inform threatened communities about the severity of hazard, but lacks consideration of other potential drivers of a hazardous situation (e.g. terrestrial and coastal flooding). Here, we propose an alternative approach that accounts for multiple components and their likelihood of coincidence for appropriate characterization of hurricane hazard. We assess the marginal and joint probability of wind-speed and rainfall from landfalling Atlantic tropical cyclones in the United States between 1979~2017 to characterize the hazard associated with these events. We then integrate the vulnerability of affected communities to have a better depiction of risk that is comparable to the actual cost of these hurricanes. Our results show that the multihazard indexing approach significantly better characterizes the hurricane hazard, and is more appropriate for risk-informed decision-making.

中文翻译：

---

实现更有效的飓风灾害沟通

热带气旋是最具破坏性的自然灾害之一，对全球人民和资产构成威胁。Saffir-Simpson 量表通常用于向受威胁社区通报灾害的严重程度，但缺乏对危险情况的其他潜在驱动因素（例如陆地和沿海洪水）的考虑。在这里，我们提出了一种替代方法，该方法考虑了多个组成部分及其巧合的可能性，以适当表征飓风灾害。我们评估了 1979 年至 2017 年间登陆美国大西洋热带气旋的风速和降雨的边际概率和联合概率，以表征与这些事件相关的危害。然后，我们整合受影响社区的脆弱性，以更好地描述与这些飓风的实际成本相当的风险。我们的结果表明，多灾害指数方法显着更好地描述了飓风灾害的特征，更适合于风险知情决策。