The Evolution of the Airflow in Cumulus and Cumulus Congestus in a Low Shear High Stability Environment

低切变高稳定环境下积云和浓积云气流的演化

• 批准号: 9222460
• 负责人: Gary Barnes
• 金额: $ 14.23万
• 依托单位: University of Hawaii
• 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: 1993-08-01 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9222460&HistoricalAwards=false
• 关键词: Evolution; Airflow; Cumulus; Congestus; Low

This proposal requests support to analyze observations obtained during the Convection and Precipitation/Electrification Experiment (CaPE) conducted in central Florida during the summer of 1992. Simultaneous traverses through convective clouds by two similarly equipped King Airs are the focus of the proposed work. Emphasis will be on the evolution of the kinematic fields within those cumuli that were sampled with more than a dozen passes during their life cycle. The two-aircraft pattern will provide observations of the basic characteristics of the near-environment, visible cloud, updraft and downdraft, and the horizontal flow in and at the edges of these features. Vertical mass flux and momentum transport as a function of life cycle will be estimated for several of the better observed cases. The analyses have the potential to be the bench-mark for the kinematic structure of moist convection in an environment characterized by low shear and high convective available potential energy.

该提案要求支持分析观察结果 在对流和降水/带电过程中获得 年夏天在佛罗里达中部进行的实验（CaPE） 1992. 同时穿越对流云的两个 同样装备的“空中国王”是拟议工作的重点。 重点将放在运动场的演变， 这些积云是经过十几次采样， 生命周期。 两架飞机模式将提供 近环境基本特征的观测， 可见的云，上升气流和下降气流，以及水平气流， 以及这些特征的边缘。 垂直质量通量和 动量输运作为生命周期的函数将被估计 几个观察得比较好的案例。 分析结果显示， 潜在的基准的运动结构的湿 在低切变和高切变的环境中的对流 对流有效位能