Study of Lake and Land Breezes Over Small Lakes

小湖泊湖泊和陆风的研究

• 批准号: 9319455
• 负责人: Raymond Arritt
• 金额: $ 24.47万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-15 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9319455&HistoricalAwards=false
• 关键词: Study; Lake; Land; Breezes; Over

9319455 Arritt Small lakes are commonplace geographical features. The atmospheric effects of lakes are important to many practical problems such as water resources, air pollution dispersion and modification of the local microclimate. There is also evidence that small lakes can substantially affect the development of daytime convective clouds. In some cased the lake breeze induced convergence provides a trigger for deep convection while in other cases small lakes have been observed to suppress convective cloudiness. Such effects have implications for feedbacks to the larger scale weather environment. The objective of this research is to develop a comprehensive physical understanding of the atmospheric effects of small lakes. Specifically, the Principal Investigators will study the magnitude of the small lake effects on the atmosphere, the temporal and spatial extent of such effects, and the fundamental physical processes that produce the measured effects. The Principal Investigators will use a combination of analytical scaling, numerical simulations and a small, well-focussed observational study to accomplish their objective. ***

小行星9319455 小湖泊是常见的地理特征。 湖泊的大气效应对水资源、大气污染扩散和局部小气候的改变等许多实际问题具有重要意义。 还有证据表明，小湖泊可以大大影响白天对流云的发展。 在某些情况下，湖风引起的辐合提供了深对流的触发，而在其他情况下，小湖泊已被观察到抑制对流云量。 这种效应对更大尺度天气环境的反馈有影响。 这项研究的目的是发展一个全面的物理理解的大气影响的小湖泊。 具体而言，主要研究人员将研究小湖对大气的影响程度，这种影响的时间和空间范围，以及产生测量影响的基本物理过程。 主要研究者将使用分析缩放、数值模拟和小型、重点明确的观察性研究的组合来实现其目标。 ***