Characterization of Asian Dust during ACE-Asia

被引:173
作者
Arimoto, R. [1 ]
Kim, Y. J.
Kim, Y. P.
Quinn, P. K.
Bates, T. S.
Anderson, T. L.
Gong, S.
Uno, I.
Chin, M.
Huebert, B. J.
Clarke, A. D.
Shinozuka, Y.
Weber, R. J.
Anderson, J. R.
Guazzotti, S. A.
Sullivan, R. C.
Sodeman, D. A.
Prather, K. A.
Sokolik, I. N.
机构
[1] New Mexico State Univ, Carlsbad Environm Monitoring & Res Ctr, Carlsbad, NM 88220 USA
[2] Gwangju Inst Sci & Technol, Dept Environm Sci & Engn, Adv Environm Monitoring Res Ctr, Kwangju 500712, South Korea
[3] Ewha Womans Univ, Dept Environm Sci & Engn, Seoul 120750, South Korea
[4] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA
[5] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA
[6] Atmospher Environm Serv, Air Qual Res Branch, Toronto, ON M3H 5T4, Canada
[7] Kyushu Univ, Appl Mech Res Inst, Fukuoka 8168580, Japan
[8] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[9] Univ Hawaii Manoa, Sch Ocean & Earth Sci, Honolulu, HI 96822 USA
[10] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA
[11] Arizona State Univ, Environm Fluid Dynam, Tempe, AZ 85287 USA
[12] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
关键词
Asian dust; aerosols; chemistry; radiative effects; climate;
D O I
10.1016/j.gloplacha.2006.02.013
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
ACE-Asia was a multi-national collaboration organized to investigate and understand the chemistry, radiative properties, and climatic effects of mineral dust and other aerosol particles in the East Asia/Northwest Pacific region. Studies conducted at the Gosan and Zhenbeitai surface supersites show striking variations in aerosol concentrations and properties that were affected by the occurrence and origins of the Asian dust storms, air mass pathways, and mixing during the transport. Investigations conducted on the RN Ronald H. Brown (RHB) showed that dust had a pervasive influence on the chemical composition, size distribution, and optical properties of the aerosol. Analyses using an aerosol time-of-flight mass spectrometer on the RHB showed that most of the coarse-particle nitrate and sulfate in post-frontal air was associated with dust, and more remarkably, that competitive or exclusionary processes evidently are involved in the uptake or production of these substances. Studies conducted onboard the NCAR C-130 aircraft showed that coarse-mode dust was less absorbing and less hygroscopic than pollution aerosol and that there was little correlation in light scattering and absorption by the sub- vs. super-micrometer aerosol. Below similar to 2 km, dust was commonly mixed with pollutants, and this had a stronger influence on the optical properties of the submicrometer particles than the coarse-mode dust; at higher altitudes, the dust was less affected by pollution. Single particle analyses of C-130 samples showed that the mixing of black carbon (BC) with dust was common, but only certain types of BC particles were aggregated. Models were used in the planning, execution and interpretative phases of ACE-Asia; and summaries of modeling results are presented to illustrate the progress being made in identifying new dust sources; in depicting the time-varying, three-dimensional structure of dust plumes; and in quantifying the production, transport, and deposition of Asian dust. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:23 / 56
页数:34
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