| 绿洲和戈壁近地面层热量和物质输送特征对比 |
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| 引用本文： | 陈晋北,吕世华,余晔.绿洲和戈壁近地面层热量和物质输送特征对比[J].地球物理学报,2012,55(6):1817-1830. |
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| 作者姓名： | 陈晋北 吕世华 余晔 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所, 兰州 730000 |
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| 基金项目： | 国家自然科学基金，中国科学院百人计划项目 |
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| 摘 要： | 利用甘肃金塔绿洲和戈壁10 m涡旋相关法的观测资料对比研究温度、湿度和二氧化碳浓度(CO2)的平流和湍流通量特征.结果表明,在典型绿洲-戈壁复杂下垫面上,热量和物质的平流通量比湍流通量的值大1到2个量级;在绿洲和戈壁,受平流输送影响和下垫面强迫,不同性质标量湍流的水平和垂直通量分布具有不同的特征.
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| 关 键 词： | 绿洲 戈壁 平流通量 相似性关系 湍流通量 |
| 收稿时间： | 2011-03-28 |
Comparison of heat and matter transfer characteristics in the surface layers of oasis and Gobi |
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| CHEN Jin-Bei
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L Shi-Hua
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YU Ye.Comparison of heat and matter transfer characteristics in the surface layers of oasis and Gobi[J].Chinese Journal of Geophysics,2012,55(6):1817-1830. |
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| Authors: | CHEN Jin-Bei L Shi-Hua YU Ye |
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| Institution: | Cold and Arid Regions Environment and Engineering Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | The data from eddy-covariance at the level of 10 m are used to analyze comparatively the turbulent transfer characteristics of temperature,humidity,and concentration of carbon dioxide(CO2) in oasis and Gobi in Jinta Gansu.The results show that the advective fluxes of heat and matter are bigger by 1~2 orders of magnitude than their turbulent fluxes over the underlying surfaces of the oasis and Gobi;the distribution characteristic of the horizontal and vertical components of scalar turbulent fluxes will change due to the effects of advection transport and underlying surface forcing in oasis and Gobi. |
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| Keywords: | Oasis Gobi Advective flux Similarity relation Turbulent flux |
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