Experimental Studies of Turbulence in the Surface Layer: Phase III

表层湍流的实验研究：第三阶段

• 批准号: 9019682
• 负责人: Paul Frenzen
• 金额: $ 13.02万
• 依托单位: Transducer Research, Inc.
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-15 至 1993-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9019682&HistoricalAwards=false
• 关键词: Experimental; Studies; Turbulence; Surface; Layer

The object of this research is an evaluation of the stability-dependent terms of the equation for the budget of turbulent kinetic energy in the lower atmosphere. Theory gives the form of this important relation, but the contributions made by various mechanisms involved must be evaluated by experiment. Previous evaluations, many obtained more than 20 years ago, are now considered uncertain. This project will use improved equipment and will work jointly with scientists from the CSIRO Centre for Environmental Mechanics, Canberra, Australia, to carry out a complete study of the turbulence budget in the first 16 m over an extensive, treeless plain in New South Wales. Observations will be made over a wide range of atmospheric stability and will include simultaneous measurements of mean wind profiles, turbulence spectra, net radiation, vertical gradients of air temperature and dew point, rates of thermal exchange across the soil-air interface, and the vertical turbulent fluxes of turbulent energy, momentum, and heat.

本研究的目的是评价 稳定性相关的条款的预算方程 低层大气中的湍流动能。 理论给出 这一重要关系的形式，但作出的贡献， 所涉及的各种机制必须通过实验来评估。 以前的评价，许多是在20多年前获得的， 现在被认为不确定。 该项目将使用改进的 设备，并将与CSIRO的科学家合作 澳大利亚堪培拉环境力学中心， 对前16米的湍流收支进行了完整的研究， 在新南威尔士州一片广阔的没有树木的平原上。 将对大范围的大气层进行观测。 稳定性，并将包括平均风的同时测量 廓线，湍流谱，净辐射，垂直梯度 空气温度和露点，热交换率 垂直湍流通量 湍流的能量动量和热量