Numerical simulation of influence of Tibetan Plateau uplift on winter dust cycle in Asian arid regions

doi:10.1007/s12665-016-5403-1

	Numerical simulation of influence of Tibetan Plateau uplift on winter dust cycle in Asian arid regions
	Liu, Xiaodong 1,2; Li, Xinzhou 1,2; Pan, Zaitao 3
刊名	ENVIRONMENTAL EARTH SCIENCES
	2016-04-01
卷号	75 期号:7
关键词	Tibetan Plateau Uplift Dust Emission Particle Transport Winter Westerly Paleoclimate
DOI	10.1007/s12665-016-5403-1
文献子类	Article
英文摘要	While it is now generally believed that the source of Chinese Loess Plateau deposit is the deserts in northern China and Mongolia (CM), the source for the dust deposit in eastern China and neighboring seas are still under debate. Using the dust-coupled CAM5 this study simulates responses of Asian dust cycle under varying Tibetan Plateau (TP) heights. Dust activities originated from central Asia (CA: 50-70 degrees E, 35-50 degrees N) and northern China-southern Mongolia (CM: 85-110 degrees E, 35-45 degrees N) under full TP (TP), medium TP (mTP) and no TP (nTP) are analyzed. Results show that as TP uplifts stepwise, the dust mass concentration in CA weakens slightly from 78 (nTP) to 74 (mTP) to 69 lg/kg (TP), whereas that in CM strengthens noticeably from 10 to 22 to 37 mu g/kg correspondingly, more than tripled. These opposite and disparate responses between CA and CM dust concentration are likely because TP uplifting blocks mid-latitude winter westerly, reducing the emission in CA region, whereas the TP uplift enhances Siberia High Pressure thereby drying the soil and promoting dust emission. Further experiments with and without CA and CM sources under contemporary TP terrain indicate that CA source mainly affects local dust concentration and East Asia mid-high latitudes, but CM source contributes to dust in mid-low latitudes extending to as far as northwestern Pacific. Turning off the CM source reduces mid-low latitude concentration by up to 70 %, implying the key role that Cenozoic TP uplifting in the CM source formation and dust load in Asia.
WOS关键词	CHINESE LOESS PLATEAU ; AEROSOL OPTICAL DEPTH ; ATMOSPHERIC CIRCULATION ; NORTHERN CHINA ; CLIMATE-CHANGE ; MID-PLIOCENE ; MIOCENE ; MONSOON ; MODEL ; ARIDIFICATION
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
WOS记录号	WOS:000373635400060
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5753]
专题	地球环境研究所_古环境研究室
作者单位	1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 3.St Louis Univ, Dept Earth & Atmospher Sci, 3642 Lindell, St Louis, MO 63026 USA
推荐引用方式 GB/T 7714	Liu, Xiaodong,Li, Xinzhou,Pan, Zaitao. Numerical simulation of influence of Tibetan Plateau uplift on winter dust cycle in Asian arid regions[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(7).
APA	Liu, Xiaodong,Li, Xinzhou,&Pan, Zaitao.(2016).Numerical simulation of influence of Tibetan Plateau uplift on winter dust cycle in Asian arid regions.ENVIRONMENTAL EARTH SCIENCES,75(7).
MLA	Liu, Xiaodong,et al."Numerical simulation of influence of Tibetan Plateau uplift on winter dust cycle in Asian arid regions".ENVIRONMENTAL EARTH SCIENCES 75.7(2016).