Arid
DOI10.1029/2002JD003269
Dust particles in the free atmosphere over desert areas on the Asian continent: Measurements from summer 2001 to summer 2002 with balloon-borne optical particle counter and lidar, Dunhuang, China
Kim, YS; Iwasaka, Y; Shi, GY; Nagatani, T; Shibata, T; Trochkin, D; Matsuki, A; Yamada, M; Chen, B; Zhang, D; Nagatani, M; Nakata, H
通讯作者Kim, YS
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2004
卷号109期号:D19
英文摘要

Vertical changes of aerosol concentration and size in the free troposphere over the Asian desert areas were first observed using a balloon-borne optical particle counter ( 17 August and 17 October 2001 and 11 January, 30 April, and 27 August 2002) at Dunhuang (40degrees00’N, 94degrees30’E), China. The concentration of particles with diameter larger than 0.1 mum was more than 1 particle/cm(3) in the free troposphere in all seasons. The particle number-size distribution in this free troposphere shows the possible effect of diffusion of soil particles from the lower atmosphere to the free troposphere, and a noticeable peak of particle concentration is found in the supermicron size range of the number-size distribution pattern not only in the boundary mixing layer but also in the free troposphere. Trajectory analysis of air masses corresponding to aerosol layers in the free troposphere shows that the background aerosols could be transported far away. The scattering ratio and depolarization ratio measured with a lidar in May and August 2002 suggest the existence of nonspherical particles, possibly mineral particles, in the high free troposphere about 5-6 km over the Dunhuang area and showed good agreement, concerning distribution of particulate matter, with the balloon-borne measurements.


英文关键词balloon-borne measurements lidar Asian dust aerosols desert area background Kosa
类型Article
语种英语
国家Japan ; Peoples R China
收录类别SCI-E
WOS记录号WOS:000223336900001
WOS关键词LONG-RANGE TRANSPORT ; SIZE-DISTRIBUTION ; YELLOW SAND ; AEROSOL MEASUREMENTS ; MINERAL AEROSOLS ; NORTH PACIFIC ; EAST-ASIA ; DEPOSITION ; NAGOYA ; EVENTS
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
来源机构中国科学院大气物理研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/147372
作者单位(1)Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648601, Japan;(2)Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan;(3)Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China;(4)Prefectural Univ Kumamoto, Fac Environm & Symbiot Sci, Kumamoto 8628502, Japan;(5)Nagoya Univ, Solar Terr Environm Lab, Toyokawa 4428507, Japan
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GB/T 7714
Kim, YS,Iwasaka, Y,Shi, GY,et al. Dust particles in the free atmosphere over desert areas on the Asian continent: Measurements from summer 2001 to summer 2002 with balloon-borne optical particle counter and lidar, Dunhuang, China[J]. 中国科学院大气物理研究所,2004,109(D19).
APA Kim, YS.,Iwasaka, Y.,Shi, GY.,Nagatani, T.,Shibata, T.,...&Nakata, H.(2004).Dust particles in the free atmosphere over desert areas on the Asian continent: Measurements from summer 2001 to summer 2002 with balloon-borne optical particle counter and lidar, Dunhuang, China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,109(D19).
MLA Kim, YS,et al."Dust particles in the free atmosphere over desert areas on the Asian continent: Measurements from summer 2001 to summer 2002 with balloon-borne optical particle counter and lidar, Dunhuang, China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 109.D19(2004).
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