Model-Aided Studies of Mesoscale Phenomena within Cyclonic Weather Systems

小行星9419455 人们早就认识到， 而本地天气事件的严重程度，则取决于气象学家所称的中尺度过程。 首席研究员的主要目标是开展 中尺度天气系统的数值模拟，以确定三种不同的中尺度现象的关键物理过程。 这三种现象是极地低压（小涡旋 在极地海洋上形成，并在强烈的情况下对船舶作业造成危险），中尺度对流系统和锋面。 在极地低气压工作中，天气形势变化范围更广 和地理环境的研究，目的是了解极地低层的不同组成部分如何在不同的情况下相互作用。 中尺度对流的研究将侧重于模式分辨率和模式对未解决对流的表示如何影响中尺度对流系统的发展，特别是在海洋风暴的早期阶段。 锋面工作将主要涉及诊断锋面是如何在海洋气旋类型中形成的，这种海洋气旋不是在预先存在的锋面上形成，而是在演变过程中创造自己的锋面。 研究将主要通过与国家大气研究中心的科学家一起进行的数值模拟研究来完成。 ***

9419455 Reed It has long been recognized that the exact timing, location and severity of local weather events are determined by what is termed by meteorologist as mesoscale processes. The Principal Investigator's main objective is to carry out numerical simulations of mesoscale weather systems in order to identify key physical processes of three distinct mesoscale phenomena. These three phenomena are polar lows (small vortices that form over polar seas and in intense cases present a hazard to ship operations), mesoscale convective systems, and fronts. In the polar low work, a wider range of synoptic situations and geographic setting will be studied than heretofore with the aim of understanding how different components of polar low formation interact under different circumstances. The research on mesoscale convection will focus on how model resolution and model representation of unresolved convection affect the development of mesoscale convective systems, particularly in the early stages of oceanic storms. The frontal work will be concerned mainly with diagnosing how fronts form in the type of oceanic cyclone that does not form on a preexisting front , but that creates its own fronts as it evolves. Research will be primarily accomplished through numerical modeling studies conducted in conjunction with scientists from the National Center for Atmospheric Research. ***