| 尘卷风对沙尘气溶胶的贡献及其与太阳辐射的关系 |
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| 引用本文： | 段佳鹏,韩永翔,赵天良,宋昊冬.尘卷风对沙尘气溶胶的贡献及其与太阳辐射的关系[J].中国环境科学,2013,33(1):43-48. |
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| 作者姓名： | 段佳鹏 韩永翔 赵天良 宋昊冬 |
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| 作者单位： | 南京信息工程大学大气物理学院,中国气象局大气物理与大气环境重点开放实验室,江苏南京210044 |
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| 基金项目： | 国家自然科学基金资助项目(41175093,41075113);南京信息工程大学引进人才启动资助项目(20110304);江苏高校优势学科建设工程资助项目(PAPD) |
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| 摘 要： | 利用塔克拉玛干沙漠及周边地区观测资料,依据尘卷风热力学理论和方法,估算出在塔克拉玛干沙漠地区尘卷风对沙尘气溶胶贡献的年平均量为4.0× 106t,年最大量为5.0×106t,与该地区沙尘暴的沙尘气溶胶年均贡献量相当.依赖于太阳辐射强度季节变化,尘卷风的起沙量具有与地面温度同步的季节变化规律.
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| 关 键 词： | 沙尘气溶胶起沙量 对流边界层 沙尘暴 尘卷风 太阳辐射 |
| 收稿时间： | 2012-05-23; |
The contribution of dust devils to atmospheric dust aerosols and its relation with solar radiation |
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| DUAN Jia-peng
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HAN Yong-xiang
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ZHAO Tian-liang
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SONG Hao-dong.The contribution of dust devils to atmospheric dust aerosols and its relation with solar radiation[J].China Environmental Science,2013,33(1):43-48. |
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| Authors: | DUAN Jia-peng HAN Yong-xiang ZHAO Tian-liang SONG Hao-dong |
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| Institution: | (Key Laboratory of Atmospheric Physics and Environment,China Meteorological Administration,School of Atmospheric Physics,Nanjing University of Information Science and Technology,Nanjing 210044,China).China Environmental Science,2013,33(1):4348 |
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| Abstract: | Based on the thermodynamic theory of convective plumes and vortices in the atmosphere boundary layer and by using the observational data in the Taklimakan desert and surroundings, the dust aerosol emissions from the convective plumes and vortices are estimated with annual average of 4.0×106t and the maximum of 5.0×106t with an equivalent contribution to dust aerosols from dust storms over the Taklimakan desert. Depending on the seasonal cycles of solar radiation intensity, the dust aerosol emissions from the convective plumes and vortices vary with the changes of surface temperature. |
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| Keywords: | dust aerosol emission convective boundary layer dust storm dust devil solar radiation |
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