Arid
DOI10.2151/jmsj.83A.73
Characterization of aeolian dust in east China and Japan from 2001 to 2003
Kanai, Y; Ohta, A; Kamioka, H; Terashevia, S; Imai, N; Kanai, M; Shimizu, H; Takahashi, Y; Kai, K; Hayashi, M; Zhang, RJ; Sheng, LF
通讯作者Kanai, Y
来源期刊JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN
ISSN0026-1165
出版年2005
页码73-106
英文摘要

In order to elucidate the variation and characterization of dust particles that originate in the and and semi-arid regions of inland Asia and are transported to Japan, we established a sampling network system in east China and Japan and collected aeolian dust under the Japan-China joint project "ADEC". Monitoring of the total suspended particle (TSP) and size-segregated dust concentrations were carried out in Beijing, Qingdao and Hefei in China, and Fukuoka, Nagoya, Tsukuba and Naha in Japan. The seasonal variations showed the general trend that the aerosol concentration was high in spring and low in summer, though it sometimes became high in winter in Qingdao. The aerosol size distribution was bimodal. One peak at around 0.5 mu m diameter corresponds to particles of anthropogenic origin, in which the main components are black carbon, NH4+ and SO4 (2-) and some elements such as Pb, Cd, Sn, Sb and Bi are abundant. The other peak at around 4-5 mu m diameter corresponds to mineral dust of soil origin, in which the main soluble components are Na+, Ca2+, NO3- and Cl-. The coarser particles increased when a dust event occurred. The IOP program was conducted in the spring of 2002 (IOP-1) and 2003 (IOP-2). The dust concentration during IOP-1 was high in China, particularly in Beijing. The average dust concentration during a dust event decreased in the order of Beijing > Qingdao > Hefei and Beijing > Fukuoka > Nagoya > Tsukuba > Naha. However, there were few observable dust events during IOP-2. From the results of continuous monitoring, the dust concentration during periods without dust events seemed to be almost equal at all monitoring locations in Japan. This suggests that the segregation of dust occurs in China and fine dust particles are transported to Japan. Seasonal variations of TSP, PM11 (particulate size is less than 11 mu m), PM2.1 (less than 2.1 mu m) and mineral matter (larger than 2.1 mu m) contents were studied. It was shown that these values decrease with distance from the source area.


类型Article
语种英语
国家Japan ; Peoples R China
收录类别SCI-E
WOS记录号WOS:000230490100006
WOS关键词ACE-ASIA ; PARTICLES
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/2XILL650/149842
作者单位(1)Natl Inst AIST, GSJ, Tsukuba, Ibaraki, Japan;(2)Hiroshima Univ, Higashihiroshima 724, Japan;(3)Nagoya Univ, Nagoya, Aichi, Japan;(4)Fukuoka Univ, Fukuoka 81401, Japan;(5)Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China;(6)Ocean Univ China, Inst Phys Oceanog, Qingdao, Peoples R China
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Kanai, Y,Ohta, A,Kamioka, H,et al. Characterization of aeolian dust in east China and Japan from 2001 to 2003[J]. 中国科学院大气物理研究所,2005:73-106.
APA Kanai, Y.,Ohta, A.,Kamioka, H.,Terashevia, S.,Imai, N.,...&Sheng, LF.(2005).Characterization of aeolian dust in east China and Japan from 2001 to 2003.JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN,73-106.
MLA Kanai, Y,et al."Characterization of aeolian dust in east China and Japan from 2001 to 2003".JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN (2005):73-106.
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