基于CALIPSO对中国春季一次沙尘暴的研究

发布时间：2018-03-22 20:22

本文选题：CALIPSO　切入点：沙尘　出处：《环境科学学报》2016年12期 　论文类型：期刊论文

【摘要】：文章利用CALIPSO卫星观测资料,结合气溶胶模式模拟,分析了2013年入春以来发生的第1次强沙尘天气过程中的沙尘气溶胶垂直分布特征及输送特性.结果表明:此次沙尘事件有两个源区,南疆盆地(源区一),沙尘先后输送影响我国内蒙古西南部、甘肃、宁夏等地区.2月27日沙尘在甘肃西部河西走廊附近,沙尘气溶胶分布在2~5 km,退偏振比在0.1~0.5之间,色比在0.4~0.8之间;28日新疆地区沙尘气溶胶分布在4~12 km,退偏振比在0.3~0.5,色比在0.5~1.0之间.蒙古国西南部地区(源区二),沙尘先后影响我国内蒙古中西部地区、甘肃、山西北部、陕西北部、河北北部和东北西南部地区,2月28日内蒙古沙尘气溶胶分布在4~11 km,退偏振比在0.2~0.5之间,色比在0.5~1.2之间.
[Abstract]:Using CALIPSO satellite observation data and aerosol model simulation, The vertical distribution and transport characteristics of dust aerosols in the first strong dust weather process since the spring of 2013 are analyzed. The results show that the dust event has two sources. In the southern Xinjiang basin (source region), dust transport has affected southwest Inner Mongolia, Gansu, Ningxia and other areas. On February 27, dust dust was distributed in the west of Gansu near the Hexi Corridor. The dust aerosol was distributed at 2 ~ 5 km, and the depolarization ratio was between 0.1 and 0.5. The color ratio is between 0.4 and 0.8, the dust aerosol distribution in Xinjiang on 28th is 412 km, the depolarization ratio is 0.3 ~ 0.5, and the color ratio is between 0.5 and 1.0. The southwest region of Mongolia (source region Erzao, dust dust) affects the central and western regions of Inner Mongolia, Gansu, and northern Shanxi successively. In northern Shaanxi, northern Hebei and southwest northeast China, the dust aerosol distribution in Inner Mongolia on February 28 was 41km, the depolarization ratio was 0.2km, and the color ratio was between 0.5 and 1.2.
【作者单位】：秦皇岛市气象局;合水县气象局;江苏省气象灾害重点实验室;
【基金】：国家自然科学基金面上项目(No.41075114) 国家重点基础发展计划项目(No.2006CB403705)~~
【分类号】：X513;P425.55

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