Investigation of Discrete Stochastic Modeling of Thunderstorm Winds

该项目分别分析雷暴和大尺度温带风暴造成的风，以便对强风作出更可靠的估计。目前估计美国非飓风地区设计风速的最先进的方法不能区分源自大规模温带压力系统的风和发生在该国的小而强烈的雷暴。这两种不同的气象现象有不同的统计分布，不应像目前那样使用单一的分布来处理。将与每种现象相关的风数据分离并单独研究的结果将导致统计上更可靠的估计，并将深入了解在不同地区产生强风的气象及其在结构设计和安全方面的应用。

The project analyzes winds due to thunderstorms and large scale extratropical storms separately to produce more reliable estimates of strong winds. The present state- of-the-art methods for estimating design wind speeds in non-hurricane regions of the United States do not distinguish between winds originating from large scale extratropical pressure systems and the small but intense thunderstorms occurring in the country. These two different meteorological phenomena have separate statistical distributions and should not be handled using a single distribution as is currently the case. The results of separating wind data associated with each phenomena and studying each separately will lead to a more statistically reliable estimates, and will provide insight into the meteorology producing strong winds at different localities and its application for structures design and safety.