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首页> 外文期刊>Geophysical Research Letters >Contrasting influence of Gobi and Taklimakan Deserts on the Dust Aerosols in Western North America
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Contrasting influence of Gobi and Taklimakan Deserts on the Dust Aerosols in Western North America

机译：戈壁和田尾汉沙漠对北美尘青穗玉米粉尘的对比影响

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摘要

The dust generated in East Asia influences the western North America (WNA) through its trans-Pacific transport. This study investigates the distinct contribution between two main dust sources in East Asia on this remote influence based on Modern-Era Retrospective analysis for Research and Applications version 2 data set. Results show that the dust generated in Gobi desert (GD) exerts a larger influence on the WNA compared to those in Taklimakan desert (TD). This difference is attributed to the different terrain and background winds in GD and TD. The GD is relatively flat and dominated by westerlies throughout the troposphere, which facilitates the trans-Pacific transport of dust to WNA. However, the TD is located in the Tarim Basin and dominated by easterly wind in the lower troposphere. The uplifted dust is largely redeposited in TD. Moreover, the influence of GD on dust in WNA experiences decadal change around 1999, which is related to intrinsic change of dust loading in GD.
机译：东亚产生的灰尘通过其跨太平洋运输来影响西北美国（WNA）。 本研究调查了东亚两个主要尘埃源在基于现代化的研究和应用版本2数据集的遥控器中的遥控器之间的截然贡献。 结果表明，与塔克拉曼沙漠（TD）相比，戈壁沙漠（GD）中产生的灰尘对WNA产生了更大的影响。 这种差异归因于GD和TD中的不同地形和背景风。 GD相对平坦，并由整个对流层的Westerlies主导，这有利于粉尘的跨太平洋传输到WNA。 然而，TD位于塔里木盆地，并在较低的对流层中被东风占主导地位。 升高的灰尘在TD中大大重新沉积。 此外，GD对WNA粉尘的影响在1999年左右的逾越节变化，与GD中粉尘载荷的内在变化有关。

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  • 来源
    《Geophysical Research Letters》 |2019年第15期|共8页
  • 作者

    Liu Lin; Guo Jianping; Gong Hainan; Li Zhanqing; Chen Wen; Wu Renguang; Wang Lin; Xu Hui; Li Jian; Chen Dandan; Zhai Panmao;

  • 作者单位

    Chinese Acad Meteorol Sci State Key Lab Severe Weather Beijing Peoples R China;

    Chinese Acad Meteorol Sci State Key Lab Severe Weather Beijing Peoples R China;

    Chinese Acad Sci Ctr Monsoon Syst Res Inst Atmospher Phys Beijing Peoples R China;

    Univ Maryland Earth Syst Sci Interdisciplinary Ctr College Pk MD 20742 USA;

    Chinese Acad Sci Ctr Monsoon Syst Res Inst Atmospher Phys Beijing Peoples R China;

    Chinese Acad Sci Ctr Monsoon Syst Res Inst Atmospher Phys Beijing Peoples R China;

    Chinese Acad Sci Ctr Monsoon Syst Res Inst Atmospher Phys Beijing Peoples R China;

    Chinese Acad Meteorol Sci State Key Lab Severe Weather Beijing Peoples R China;

    Chinese Acad Meteorol Sci State Key Lab Severe Weather Beijing Peoples R China;

    Chinese Acad Meteorol Sci State Key Lab Severe Weather Beijing Peoples R China;

    Chinese Acad Meteorol Sci State Key Lab Severe Weather Beijing Peoples R China;

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  • 正文语种 eng
  • 中图分类 地球物理学;
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