The Potential Vorticity Dynamics of Upper-Level Short Waves

高层短波的位涡动力学

• 批准号: 9218316
• 负责人: John Nielsen-Gammon
• 金额: $ 14.24万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-01 至 1995-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218316&HistoricalAwards=false
• 关键词: Potential; Vorticity; Dynamics; Upper; Level

The objective of this research is to better understand how midlatitude cyclones or storms develop. The principal investigator will examine a number of cyclogenetic processes in the extratropical atmosphere, focusing on the formation of so-called "short waves" in the upper troposphere, in a series of case studies. The study will employ high resolution analyses in isentropic coordinates, using the technique of potential vorticity inversion. Much previous research on cyclogenesis has dealt with the process after the initial upper-level shortwaves are evident. In this project, the PI will attempt to identify the origin of those shortwaves.

这项研究的目的是更好地了解中纬度气旋或风暴是如何发展的。首席研究员将在一系列案例研究中研究温带大气中的一些气旋形成过程，重点关注对流层上层所谓“短波”的形成。本研究将采用位涡反演技术，在等熵坐标下进行高分辨率分析。以前许多关于气旋形成的研究都是在最初的高层短波明显之后进行的。在这个项目中，PI将试图确定这些短波的来源。