The Turbulent Exchange of Heat, Mass & Momentum Between the Atmosphere and A Plant Canopy: Examination of the Physical Processes and Evaluation of Modeling Schemes

热、质量的湍流交换

• 批准号: 8703832
• 负责人: Roger Shaw
• 金额: $ 17.23万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-10-15 至 1990-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8703832&HistoricalAwards=false
• 关键词: Turbulent; Exchange; Heat; Mass; &amp

The objective of this research is to examine the coherent structures of air flow in the vicinity of a plant canopy and the role they play in the turbulent exchange of heat, mass and momentum between the forest and the atmosphere above. To accomplish this, a field experiment will be conducted at an almond orchard site concurrently with Project WIND which will be sponsored by the Army and the USDA Forest Service. Measurements of temperature, humidity and three dimensional wind components will be made both within and above the orchard. Statistical techniques such as quadrant and octant analyses will be used to identify the coherent structures. The results should increase our physical understanding and modeling ability of the interaction between the forest and the atmosphere.

这项研究的目的是检查连贯的 植物冠层附近的气流结构及其作用 它们参与了热量、质量和动量的剧烈交换 在森林和大气层之间。 为了实现这一点， 田间试验将在果园园进行 与陆军赞助的风力项目同时进行 和美国农业部林务局 温度、湿度测量 三维风分量将在内部和 在果园上方。 统计技术，如象限和 八分圆分析将用于识别相干结构。 这些结果应该会增加我们对物理的理解和建模 森林与大气之间相互作用的能力。