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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Observed Dust Storm in the Taklimakan Desert on April 13, 2002
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Observed Dust Storm in the Taklimakan Desert on April 13, 2002

机译:2002年4月13日在塔克拉玛干沙漠观察到的沙尘暴

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References(14) Cited-By(1) Supplementary materials(1) Analysis results of data from lidar and AWS observations performed in the northwestern part of the Taklimakan Desert show a sudden increase in the backscattering ratios in the lower troposphere on 13 April 2002, with strong easterly winds. The Terra satellite reveals that the sudden increase is caused by the outbreak of an extensive dust storm. Numerical simulations, using a regional model, reproduce the strong easterly winds prevailing in a wide area of the desert, originating from north of the Tienshan Mountains. These conclude that the strong easterly winds lift a large amount of sand particles off the ground and results in the dust storm. In addition, a nose-shaped profile of the increased backscattering ratios indicates passage of a gravity current.
机译:参考文献(14)被引用的资料(1)补充材料(1)塔克拉玛干沙漠西北部的激光雷达和AWS观测数据的分析结果表明,2002年4月13日对流层低层的反向散射比突然增加,强劲的东风。 Terra卫星显示,突然增加的原因是一场沙尘暴的爆发。使用区域模型进行的数值模拟再现了从天山山脉以北的沙漠广大区域盛行的强东风。这些结论表明,强东风将大量沙粒从地面抬起,并导致沙尘暴。另外,增加的反向散射比的鼻形轮廓指示重力流的通过。

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