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在EBEX-2000实验资料中湍流谱和局地各向同性特征 预览 被引量:19

Characteristics of Turbulence Spectra and Local Isotropy in EBEX-2000
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摘要 采用2000年8月在美国加州棉花地两个高度上应用超声三分量仪、快速响应温度和湿度仪进行的EBEX-2000 (International Energy Balance Experiment,2000,EBEX-2000)风速三分量、温度和湿度湍流实验观测数据,计算分析了湍流速度、温度和湿度谱在不同稳定度下的特征.对湍流的局地各向同性进行了讨论并与Kansas和长白山原始森林湍流实验得到的结果进行了比较,得到了一些湍流特征量在不同下垫面情况下的一些有意义的特征. Three velocity components, temperature and humidity are measured using three-dimensional sonic anemometers, krypton hygrometer and fast thermometers at two levels, above a cotton field in California, USA in August 2000 (International Energy Balance Experiment, EBEX-2000). Turbulence spectra of velocity components, temperature and humidity are calculated and analyzed under different stability. Characteristics of the turbulence spectral local isotropy are analyzed under different stability and compared with Kansas Experiment and Changbai Mountains Experiment results.
作者 刘树华 李洁 刘和平 梁福明 王建华 Johnny C.L.CHAN Andrew Y.S.CHENG 胡非 刘辉志 LIU Shu-Hua{1,3}, LI Jie1, LIU He-Ping1, LIANG Fu-Ming1, WANG Jian-Hua1,Johnny C.L.CHAN2, Andrew Y.S.CHENG2, HU Fei3, and LIU Hui-Zhi31 Group of Atmospheric Boundary Layer and Turbulence, Ministry Laboratory of Storm and Drought/Flood Damages, Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 1008712 Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue Kowloon, Hong Kong3 State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029
出处 《大气科学》 CSCD 北大核心 2005年第2期 213-224,共12页 Chinese Journal of Atmospheric Sciences
基金 国家自然科学基金,香港城市大学校科研和教改项目,国家重点实验室基金
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