globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50405
论文题名:
A super Asian dust storm over the East and South China Seas: Disproportionate dust deposition
作者: Hsu S.-C.; Tsai F.; Lin F.-J.; Chen W.-N.; Shiah F.-K.; Huang J.-C.; Chan C.-Y.; Chen C.-C.; Liu T.-H.; Chen H.-Y.; Tseng C.-M.; Hung G.-W.; Huang C.-H.; Lin S.-H.; Huang Y.-T.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:13
起始页码: 7169
结束页码: 7181
语种: 英语
英文关键词: Asian dust ; dust deposition ; dust iron ; East China Sea ; long-range transport ; South China Sea
Scopus关键词: Aerosols ; Aluminum ; Atmospheric movements ; Coastal zones ; Deposition ; Storms ; Asian dust ; Dust deposition ; East China Sea ; Long range transport ; South China sea ; Dust ; aerosol ; aluminum ; atmospheric deposition ; atmospheric plume ; atmospheric pollution ; climate conditions ; concentration (composition) ; dust ; long range transport ; storm ; Asia ; Pacific Ocean ; South China Sea
英文摘要: A super Asian dust (SAD) storm that originated from North China has affected East Asia since 20 March 2010. The tempo-spatial and size distributions of aerosol Al, a tracer of wind-blown dust, were measured on a regional aerosol network in March 2010. Two dust events were recorded: the SAD and a relatively moderate AD event. The SAD clouds raised Al concentrations to ~50 μg/m 3 on 21 and 22 March over the East China Sea (ECS) and occupied there for ~5 days. The SAD plume also stretched toward the South China Sea (SCS) on 21 March however, it caused a maximum Al concentration of ~8.5 μg/m 3 only, much lower than that observed in the ECS. In comparison, a weaker dust plume on 16 March caused Al maximum of ~4 μg/m3 over the ECS, and comparably, ~3 μg/m3 in the SCS. Dry dust deposition was measured during the peak phase of the SAD at 178 mg/m2/d, which corresponded to dry deposition velocities of 0.2-0.6 cm/s only, much lower than the commonly adopted one (1-2 cm/s). The corresponding increase in dust deposition by the SAD was up to a factor of ~12, which was, however, considerably disproportionate to the increase in dust concentration (i.e., the factor of over 100). In certain cases, synoptic atmospheric conditions appear to be more important in regulating dust contribution to the SCS than the strength of AD storms. Key Points A super Asian dust observed on a regional aerosol network over the ocean Increase in dust deposition is disproportionate to that in dust concentration Synoptic weather conditions play a critical role in AD transport to the SCS ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63559
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan; Department of Marine Environmental Informatics, National Taiwan Ocean University, Keelung, Taiwan; Institute of Oceanography, National Taiwan University, Taipei, Taiwan; Department of Geography, National Taiwan University, Taipei, Taiwan; Division of Engineering, University of Nottingham Ningbo China, Ningbo, Zhejiang Province, China; Department of Life Science, National Taiwan Normal University, Taipei, Taiwan; Center for Environmental Studies, National Central University, Jhongli, Taoyuan, Taiwan; Center for General Education, National Penghu University of Science and Technology, Penghu, Taiwan

Recommended Citation:
Hsu S.-C.,Tsai F.,Lin F.-J.,et al. A super Asian dust storm over the East and South China Seas: Disproportionate dust deposition[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(13)
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