DOI: 10.1016/j.atmosenv.2015.01.039
Scopus记录号: 2-s2.0-84922610387
论文题名: A multidisciplinary approach to trace Asian dust storms from source to sink
作者: Yan Y ; , Sun Y ; , Ma L ; , Long X
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 105 起始页码: 43
结束页码: 52
语种: 英语
英文关键词: Back trajectory analysis
; Dust storm
; Proxy comparison
; Satellite image
; Source tracing
Scopus关键词: Arid regions
; Isotopes
; Landforms
; Meteorology
; Quartz
; Satellite imagery
; Storms
; Trajectories
; Back trajectory analysis
; Dust storm
; Proxy comparison
; Satellite images
; Source tracing
; Dust
; oxygen
; air mass
; dust storm
; megacity
; MODIS
; regional pattern
; satellite imagery
; trajectory
; air
; algorithm
; Article
; Asian
; carbon sink
; Chinese
; comparative study
; desert
; dust
; dust storm
; hurricane
; loess
; meteorological phenomena
; priority journal
; satellite imagery
; spring
; Asia
; China
; Shaanxi
; Xian
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Tracing the source of dust storm (DS) in mega-cities of northern China currently suffers ambiguities from different approaches including source-sink proxy comparison, air mass back trajectory modeling, and satellite image monitoring. By integrating advantages of all three methods, we present a multidisciplinary approach to trace the provenance of dust fall in Xi'an during the spring season (March to May) of 2012. We collected daily dust fall to calculate dust flux variation, and detected eight DS events with remarkable high flux values based on meteorological comparison and extreme detection algorithm. By combining MODIS images and accompanying real-time air mass back trajectories, we attribute four of them as natural DS events and the other four as anthropogenic DS events, suggesting the importance of natural and anthropogenic processes in supplying long-range transported dust. The primary sources of these DS events were constrained to three possible areas, including the northern Chinese deserts, Taklimakan desert, and Gurbantunggut desert. Proxy comparisons based upon the quartz crystallinity index and oxygen isotope further confirmed the source-to-sink linkage between the natural DS events in Xi'an and the dust emissions from the northern Chinese deserts. The integration of geochemical and meteorological tracing approaches favors the dominant contribution of short-distance transportation of modern dust fall on the Chinese Loess Plateau. Our study shows that the multidisciplinary approach could permit a better source identification of modern dust and should be applied properly for tracing the provenance fluctuations of geological dust deposits. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81954
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; University of Chinese Academy of Sciences, Beijing, China; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China
Recommended Citation:
Yan Y,, Sun Y,, Ma L,et al. A multidisciplinary approach to trace Asian dust storms from source to sink[J]. Atmospheric Environment,2015-01-01,105