| DOI: | 10.1016/j.atmosenv.2015.10.038
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| Scopus记录号: | 2-s2.0-84946568449
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| 论文题名: | Source and transportation of summer dust over the Tibetan Plateau |
| 作者: | Jia R; , Liu Y; , Chen B; , Zhang Z; , Huang J
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2015
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| 卷: | 123 | | 起始页码: | 210
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| 结束页码: | 219
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| 语种: | 英语
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| 英文关键词: | Source
; Summer dust
; Tibetan plateau
; Transportation
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| Scopus关键词: | Advection
; Aerosols
; Arid regions
; Landforms
; Transportation
; Anthropogenic aerosols
; Cloud-aerosol lidar and infrared pathfinder satellite observations
; Correlation coefficient
; Great Indian Thar deserts
; Gurbantunggut deserts
; Meteorological condition
; Source
; Tibetan Plateau
; Dust
; advection
; aerosol
; anthropogenic source
; climate modeling
; hydrological cycle
; lidar
; low pressure system
; radiation balance
; summer
; wind direction
; aerosol
; altitude
; Article
; Asia
; atmosphere
; dust
; India
; meteorology
; particle size
; priority journal
; summer
; topography
; weather
; China
; Gurbantunggut Desert
; Qinghai-Xizang Plateau
; Taklimakan Desert
; Thar Desert
; Xinjiang Uygur
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | Satellite observational evidences (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations, CALIPSO) have presented that the Tibetan Plateau (TP) is subject to heavy loading of dust aerosols during summer. Combining back trajectory and weather system analyses, the source and transportation of summer Tibetan dust from 2007 to 2014 were investigated. The Tibetan dust is mainly from the Taklimakan Desert and partially from the Gurbantunggut Desert and Great Indian Thar Desert. Case study indicates that the meteorological conditions together with the topography benefit the dust emission adjacent to the TP and the transport toward the plateau. When a cold advection or front developed by strong cold advection passes, dust particles are emitted into the atmosphere from the Taklimakan and Gurbantunggut deserts and then transported to the northern slope of the TP with northeasterly wind induced by the Altai and Tian Shan mountains. For the period from 2007 to 2014, the correlation coefficient of the monthly frequencies of summer dust events over the TP and cold advection passing the Taklimakan and Gurbantunggut deserts were as high as 0.68 and 0.34, respectively. Differently, although the correlation is limited, much TP dust mobilized from the Great Indian Thar Desert is associated with the passing low-pressure system activity and generally polluted by anthropogenic aerosols. The polluted dust is further transported to the southern slope of the TP by the prevailing westerly wind. Investigations on the source and transportation of summer dust over the TP provide a solid foundation of data that can be used to reveal the role of TP dust in the radiation balance, hydrological cycle, and monsoon cycle in India and East Asia. © 2015 Elsevier Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/81436
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China
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| Recommended Citation: | |
Jia R,, Liu Y,, Chen B,et al. Source and transportation of summer dust over the Tibetan Plateau[J]. Atmospheric Environment,2015-01-01,123
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