Investigations of Tornadogenesis, Convection Initiation and the Evolution of the Convective Boundary Layer

龙卷发生、对流引发和对流边界层演化的研究

• 批准号: 9221951
• 负责人: Roger Wakimoto
• 金额: $ 27.32万
• 依托单位: University of California-Los Angeles
• 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: 1993-05-01 至 1996-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221951&HistoricalAwards=false
• 关键词: Investigations; Tornadogenesis; Convection; Initiation; Evolution

Many meteorological phenomenon are controlled and/or influenced by the physics of the convective boundary layer. During the Convection and Precipitation/Electrification Experiment (CaPE) held in Florida in 1991, a collection of very advanced meteorological instrumentation was brought to bear on a variety of meteorological problems including those of the boundary layer. Using data from the CaPE, the Principal Investigator will conduct research with the following five objectives: study of a waterspout with Doppler radar and cloud photogrammetry; detailed analysis of the sea breeze phenomena with emphasis on synoptic flow regime, along front variation and convective initiation; evolution of horizontal convective rolls that develop within the boundary layer with emphasis on along roll variation of enhanced cloud development; analysis of convective initiation resulting from the collision of two boundaries; analysis of air mass storms in order toe assess the generality of a generalized thunderstorm conceptual model recently proposed by the Principal Investigator.

许多气象现象受到对流边界层物理现象的控制和/或影响。 1991 年在佛罗里达州举行的对流和降水/带电实验 (CaPE) 期间，使用了一系列非常先进的气象仪器来解决包括边界层气象问题在内的各种气象问题。 利用来自 CaPE 的数据，首席研究员将开展以下五个目标的研究：利用多普勒雷达和云摄影测量研究水龙卷；对海风现象的详细分析，重点是天气流态、锋面变化和对流启动；边界层内发展的水平对流卷轴的演变，重点是增强云发展的沿卷轴变化；分析两个边界碰撞引起的对流引发；对气团风暴进行分析，以评估首席研究员最近提出的广义雷暴概念模型的普遍性。