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2001年8月使用三维超声风温仪(IA-SA 485)测定并分析了中国科学院长白山森林生态系统开放站阔叶红松林样地(12828扙,4224?N,吉林省,中国)林地附近湍流特征。发现林地附近气流具有高度间歇性和不对称性,并为活跃的向上运动主导。垂直方向的湍流受到抑制,其时间尺度和长度尺度都小于水平两个分量的相应值,林地附近的气团呈偏平结构。热力作用对当地湍流产生和维持过程起到了主导作用。图4表3参15。
August 2001 Three-dimensional ultrasonic air temperature (IA-SA 485) was used to measure and analyze the turbulent flow around the woodlands of the broad-leaved Korean pine forest (12828扙, 4224 ?N, Jilin Province, China) at the Changbai Mountain Forest Ecosystem Open Station feature. The airflow around the woodlands was found to be highly intermittent and asymmetric and dominated by an active upward movement. Turbulence in the vertical direction is suppressed, and both the time scale and the length scale are smaller than the corresponding values of the two horizontal components. The air mass near the woodland is flattened. The thermal effect has played a dominant role in the local turbulence generation and sustainment process. Figure 4 Table 3 参 15.