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首页> 外文期刊>Atmospheric chemistry and physics >Remote sensing and modelling analysis of the extreme dust storm hitting the Middle East and eastern Mediterranean in September 2015
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Remote sensing and modelling analysis of the extreme dust storm hitting the Middle East and eastern Mediterranean in September 2015

机译：2015年9月击中中东地中海和东部地中海的极端尘暴的遥感与建模分析

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The extreme dust storm that affected the Middle East and the eastern Mediterranean in September 2015 resulted in record-breaking dust loads over Cyprus with aerosol optical depth exceeding 5.0 at 550 nm. We analyse this event using profiles from the European Aerosol Research Lidar Network (EARLINET) and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), geostationary observations from the Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI), and high-resolution simulations from the Regional Atmospheric Modeling System (RAMS). The analysis of modelling and remote sensing data reveals the main mechanisms that resulted in the generation and persistence of the dust cloud over the Middle East and Cyprus. A combination of meteorological and surface processes is found, including (a) the development of a thermal low in the area of Syria that results in unstable atmospheric conditions and dust mobilization in this area, (b) the convective activity over northern Iraq that triggers the formation of westward-moving haboobs that merge with the previously elevated dust layer, and (c) the changes in land use due to war in the areas of northern Iraq and Syria that enhance dust erodibility.
机译：2015年9月影响中东和东地中海的极端尘暴导致塞浦路斯污染粉尘荷载，气溶胶光学深度超过5.0，550nm。我们使用欧洲气溶胶研究激光雷达网络（Earlinet）和云气溶胶激光乐队和红外探测器卫星观察（Calipso），来自Meteosat第二代（MSG）纺纱增强的可见和红外成像器（Seviri）的地球静止观测和区域大气建模系统（RAMS）的高分辨率模拟。对建模和遥感数据的分析显示了导致中东和塞浦路斯尘埃云的产生和持续存在的主要机制。发现了气象和表面过程的组合，包括（a）叙利亚地区的热量的发展，导致这一领域不稳定的大气条件和粉尘动员，（b）伊拉克北部的对流活动触发了与以前升高的尘土层合并的向西移动的牙齿形成，（c）由于北伊拉克北部地区和叙利亚领域导致的土地利用的变化，增强了灰尘蚀刻性。

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