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植物冠层附近气流的连贯结构，以及它们在森林与上方大气之间的热量、质量和动量的湍流交换中所发挥的作用。 为了实现这一目标，将与由陆军和美国农业部林业局赞助的 WIND 项目同时在杏仁园进行实地实验。 温度、湿度和三维风分量的测量将在果园内部和上方进行。 象限和八分圆分析等统计技术将用于识别相干结构。 研究结果应该会提高我们对森林与大气之间相互作用的物理理解和建模能力。