Mesoscale Influences on the Initiation and Development of Clouds and Precipitation

中尺度对云和降水的产生和发展的影响

• 批准号: 8912729
• 负责人: Mark Hjelmfelt
• 金额: --
• 依托单位: South Dakota School of Mines and Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8912729&HistoricalAwards=false
• 关键词: Mesoscale; Influences; Initiation; Development; Clouds

Improved forecasts of the timing and location of localized rainfall events are dependent on improved understanding of the processes responsible for the initiation and organization of convective storms. Convergence along mesoscale atmospheric boundaries and topographic effects are primary mechanisms for convective cloud initiation and development and in determining the mesoscale distribution of precipitation. Using numerical simulations and data from previous field experiments, the Principal Investigator will examine the contributions, interactions and sensitivities of the physical processes leading to convective storm development. Emphasis will be placed on the role of mesoscale atmospheric boundaries and topographical effects. //

对局部降雨事件的时间和地点的改进预测取决于对对流风暴的引发和组织过程的更好的了解。 沿中尺度大气边界的辐合和地形效应是对流云产生和发展以及确定降水中尺度分布的主要机制。 首席研究员将利用数值模拟和先前现场实验的数据，研究导致对流风暴发展的物理过程的贡献、相互作用和敏感性。 重点将放在中尺度大气边界和地形效应的作用上。 //