Modeling and Analysis of Convective Storms

ATM-9420045首席调查员及其研究人员将继续研究对流风暴及其相关恶劣天气现象的分析和数值模拟。这项研究旨在加深对雷暴向中尺度对流系统(MCSs)转化过程的理解，并量化位涡在MCSs发生和演变中的作用。研究人员还将调查造成强烈直线风和龙卷风形成和维持的物理因素。这项研究结合了一种交互式嵌套网格模型的使用，即。科罗拉多州立大学S(科罗拉多州立大学)区域大气模拟系统(RAMS)对高分辨率观测系统收集的数据进行了分析，其中包括科罗拉多州立大学的国家研究机构CHILL雷达。模拟和观测之间的联系提供了通过数值模拟、验证和改进模型和客观分析风暴记录来反复检验假设。计划工作的另一个重要因素是公羊队在物理和数值方面的新发展。***

ATM-9420045 The Principal Investigator and his research staff will continue their research on the analysis and numerical simulation of convective storms and associated severe weather phenomena. The research is aimed at furthering understanding of the processes involved in the transformation of thunderstorms to mesoscale convective systems (MCSs) and the quantification of the role of potential vorticity on the genesis and evolution of MCSs. The researchers also will investigate the physical factors responsible for the formation and maintenance of severe straight line winds and tornadoes. The research combines the use of an interactive, nested-grid model, viz. Colorado State University s (CSU) Regional Atmospheric Modeling System (RAMS) with analysis of data gathered by high- resolution observational systems, including the CSU-CHILL radar, a national research facility. The linkage between modeling and observations provides iterative testing of hypotheses by numerical simulations, validation and refinement mf the models and objectively analyzed documentation of storms. An additional important element of the planned work lies in new developments in the RAMS' physics and numerics. ***