Studies of Mesoscale Convective Systems

中尺度对流系统研究

• 批准号: 9201786
• 负责人: Michael Biggerstaff
• 金额: $ 37.5万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-10-15 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9201786&HistoricalAwards=false
• 关键词: Studies; Mesoscale; Convective; Systems

Mesoscale convective systems (MCS) are collections of deep convective storms that are the parents of most beneficial rain and destructive severe weather in the Spring and Summer in the US. Improved understanding of these systems and their interactions with other scales of motion is fundamental to improve weather predictions sought after in the US Weather Research Program. Using data previously collected during the Oklahoma-Kansas Preliminary Regional Experiment for STORM Central (O-K PRE-STORM; where STORM stands for STormscale Operational and Research Meteorology), the Principal Investigator will investigate the structure and evolution of MCSs and how they affect the larger scale flow. The two major objectives are: (1) determine how the circulation structure of the stratiform regions of MCSs develops and how that may affect the structure and longevity of the parent convective system; (2) examine the structure of convective vertical drafts to determine how the area-averaged convective structure varies in space and time as a possible consequence of mesoscale gradients in the thermodynamic structure of the environment, and interaction between the convective region and internal mesoscale storm-relative flow.

中尺度对流系统（MCS）是一组深层对流系统， 对流风暴是最有益的雨水的父母， 美国春季和夏季的破坏性恶劣天气。 更好地了解这些系统及其与 其他尺度的运动是改善天气的基础 在美国天气研究计划中寻求的预测。 利用之前在俄克拉荷马州和堪萨斯州之间 风暴中心的初步区域试验 其中STORM代表STORM规模运营和研究 气象学），首席研究员将调查 MCSs的结构和演变以及它们如何影响更大的 规模流动 两个主要目标是：（1）确定 MCS层状区环流结构发展 以及这会如何影响母体的结构和寿命 （2）研究对流垂直结构 确定面积平均对流结构 在空间和时间上的变化可能是中尺度的结果 环境热力学结构的梯度，以及 对流区与内部中尺度相互作用 风暴相对流