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

本研究的目的是研究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、质量和动量的湍流交换中所起的作用。为了实现这一目标，陆军和美国农业部林业局将在一个杏树园内与WIND项目同时进行实地试验。温度、湿度和三维风分量的测量将在果园内部和果园上方进行。统计技术，如象限和八象限分析将用于识别连贯的结构。这些结果将增加我们对森林和大气之间相互作用的物理理解和建模能力。

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.