干旱区生态环境知识资源中心(Arid): Simulation on the spatio-temporal distribution and emission flux of dust aerosol over East Asia in 2000-2009

Arid

	Simulation on the spatio-temporal distribution and emission flux of dust aerosol over East Asia in 2000-2009
	Su Xingtao; Wang Hanjie; Tao Hengrui; Liu Lieshuang; Zhang Hongfeng
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2013
卷号	5 期号:2 页码:230-239
英文摘要	A regional climate model (RegCM3), coupled with an online dust module, is used to simulate the spatio-temporal distribution and emission flux of dust aerosol (smaller than 20 mum in diameter) over East Asia in the period from 2000 to 2009. The model performance is firstly evaluated against available observations. Simulation results show that the model can capture the characteristics of spatio-temporal distribution of dust aerosol very well over East Asia. There always exist two extremes of dust aerosol optical depth (AOD) and column burden (CB), one is in the Taklimakan Desert of Xinjiang Uygur Autonomous Region, China, and the other is in the Badain Jaran Desert of Inner Mongolian Autonomous Region, China. The maximum value of CB appears in spring, secondary maximum in winter and minimum in autumn. To the east of 110°E, dust is transported eastward from a maximum center at a height of 700 hPa over the East Asian continent. Dust emission sources are mainly located in the Taklimakan Desert, Badain Jaran Desert, North Qinghai-Tibetan Plateau and Southwest Mongolia. There is also an obvious seasonal variation of dust emission flux (EF). Annual mean dust EF is 1,015.34 mg/(m~ 2 ·d), of which 62.4% and 2.3% are re-deposited onto the East Asian continent through a dry and wet deposition process, respectively, and the remaining 35.3% is injected into the atmosphere or subject to long-range transport.
英文关键词	dust aerosol RegCM3 column burden emission deposition
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4906327
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335230
作者单位	Su Xingtao, Beijing Institute of Applied Meteorology, Beijing 100029, China.; Wang Hanjie, Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Chinese Academy of Science, Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Chinese Academy of Science, Beijing 100029, China.; Tao Hengrui, Aviation University of Air Force, Changchun, Jilin 130022, China.; Liu Lieshuang, Atmospheric and Oceanic Sciences, Department of Physics, Peking University, Beijing 100871, China.; Zhang Hongfeng, EAAF Institute of Aeronautical Meteorology and Chemical Defense, Beijing 100085, China.
推荐引用方式 GB/T 7714	Su Xingtao,Wang Hanjie,Tao Hengrui,et al. Simulation on the spatio-temporal distribution and emission flux of dust aerosol over East Asia in 2000-2009[J],2013,5(2):230-239.
APA	Su Xingtao,Wang Hanjie,Tao Hengrui,Liu Lieshuang,&Zhang Hongfeng.(2013).Simulation on the spatio-temporal distribution and emission flux of dust aerosol over East Asia in 2000-2009.Sciences in Cold and Arid Regions,5(2),230-239.
MLA	Su Xingtao,et al."Simulation on the spatio-temporal distribution and emission flux of dust aerosol over East Asia in 2000-2009".Sciences in Cold and Arid Regions 5.2(2013):230-239.