Dust particles in free troposphere over Chinese desert region revealed from balloon borne measurements under calm weather conditions

作     者：HABIB Ammara CHEN Bin SHI Guangyu IWASAKA Yasunobu NATH Debashis KHALID Bushra TAN Saichun MAHMOOD Tariq JIAO Reguang NTWALI Didier HABIB Ammara;CHEN Bin;SHI Guangyu;IWASAKA Yasunobu;NATH Debashis;KHALID Bushra;TAN Saichun;MAHMOOD Tariq;JIAO Reguang;NTWALI Didier

作者机构：Institute of Atmospheric Physics Chinese Academy of Sciences College of Earth and Planetary Sciences University of Chinese Academy of Sciences Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science & Technology Kanazawa Univeristy Department of Environmental Science International Islamic University International Institute for Applied Systems Analysis The Abdus Salam International Centre for Theoretical Physics 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2019年第12卷第1期

页      面：12-20页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National Natural Science Foundations of China [grant numbers 41590871 and 41475136] the International Science&Technology Cooperation Program of China [grant number 2013DFG22820] 

主　　题：Aerosols optical particle counter balloon-borne measurements Dunhuang 

摘      要：The Taklamakan Desert in China is one of the major source regions for Asian dust *** balloon-borne measurements in this report were carried out in Dunhuang,in the Taklamakan Desert,during calm weather *** aerosol number concentration,size distribution,mass concentration,and horizontal mass flux due to westerly wind were *** measurements were performed on 17 August 2001,17 October 2001,11 January 2002,and 30 April *** channels(0.3,0.5,0.8,1.2,and 3.6μm in diameter)were used in the Optical Particle Counter for particle *** aerosol number concentration in the winter season(11 January 2002)at 3–5 km was very *** of free-tropospheric aerosols on 30 April 2002 was noticeable.A super-micron range was noticeable in the size distribution of all the *** variations in temperature and aerosol concentration were found at these inversion *** values of estimated mass concentration of aerosols were frequently observed in the atmosphere near the ground(i.e.,1–2 km);and interestingly,relatively high concentrations were frequently detected above 2 km from the *** patterns observed using ERA-Interim data at 500 and 850 hPa showed that westerly winds dominated in the Taklamakan Desert during the observation *** average horizontal mass flux of background Asian dust due to westerly wind was observed to fall within the range of 58.5–1219 tons km?2 d?*** profiles of aerosol number concentrations showed that significant transport of aerosols dominated in the westerly region(i.e.,4–7 km).