Mesoscale Convective Systems

[409988]许多对理解和预测对人类活动具有破坏性的天气至关重要的因素发生在气象学家所说的中尺度上。中尺度现象不能很好地由业务天气网络采样；因此，通过专门设计研究中尺度过程的情景现场实验取得了进展。大多数对流风暴发生在被称为中尺度对流系统（MCSs）的有组织单位中。首席研究员有三个目标，将通过诊断研究和先进的数值模拟相结合来完成：研究MCSs三个组成部分（对流区、过渡区和层状区）的动力学和微物理的基本性质；研究MCSs对大尺度环流的影响；继续进行MCS的气候学研究，包括对比不同地理位置的MCS结构。＊＊＊

9409988 Houze Many of the factors that are critical for understanding and predicting weather that is disruptive to human activity occur on what meteorologists term the mesoscale. Mesoscale phenomena are not well sampled by the operational weather network; therefore, progress is made through episodic field experiments specially designed to study mesoscale processes. Most convective storms occur in organized units known as mesoscale convective systems (MCSs). The Principal Investigator has three objectives that will be accomplished using a combination of diagnostic studies and advanced numerical modeling: study the fundamental nature of the dynamics and microphysics of the three components of MCSs (convective regions, transition region and stratiform region); study the impact of MCSs on large scale circulations; continue climatological studies of MCSs including contrasting MCS structures from different geographical locations. ***