DOI: 10.1016/j.atmosres.2018.12.006
Scopus记录号: 2-s2.0-85058534794
论文题名: Modeling study on three-dimensional distribution of dust aerosols during a dust storm over the Tarim Basin, Northwest China
作者: Meng L. ; Yang X. ; Zhao T. ; He Q. ; Lu H. ; Mamtimin A. ; Huo W. ; Yang F. ; Liu C.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 218 起始页码: 285
结束页码: 295
语种: 英语
英文关键词: Dust aerosols
; Dust storm
; Taklamakan Desert
; Tarim Basin
; WRF-Chem
Scopus关键词: Aerosols
; Air
; Air quality
; Boundary layers
; Landforms
; Storms
; Wind
; Dust aerosols
; Dust storm
; Taklamakan
; Tarim Basin
; WRF-Chem
; Dust
; aerosol
; air quality
; dust
; dust storm
; three-dimensional modeling
; weather forecasting
; China
; Qinghai-Xizang Plateau
; Taklimakan Desert
; Tarim Basin
; Xinjiang Uygur
英文摘要: The air quality model WRF-Chem was employed to simulate a dust storm event in spring, 2015 over the Taklamakan Desert of the Tarim Basin (TB), Northwest China. Based on the reasonable evaluations with the ground observations and CALIPSO satellite data of meteorology and aerosols, the simulation was used to characterize the three-dimensional distribution of dust aerosols for this springtime dust storm over the TB. Under the impact of unique basin topography on a cold frontal system, a large amount of cold air invading the TB in three main tracks of near-surface winds: (1) westerly winds across the Pamirs Plateau, (2) northerly air flows crossing the Tianshan Mountains, and (3) strong northeast winds passing the northeast mouth of TB, building three main dust plumes over the TB for the dust storm process. The strong dust plume swept southwestwards across the basin with dominating over two weak dust plumes, and the mechanical effect of Tibetan Plateau on the dust plumes could determine the surface dust aerosol distribution over the TB. Based on observation and simulation, the extremely thick boundary layer was identified with the height of 3-5 km from the surface over the TB for the vertical distribution of dust aerosols. Dust aerosols were lifted up to 7 km in the free troposphere over the southern TB driven by the northern slope of the Tibetan Plateau. The distribution of dust aerosols in the upper boundary layer at the height of 3-5 km was controlled by the convergences of near-surface air flows over the TB and the obstruction of plateaus and mountains surrounding the TB, building the floating dust layer over the basin. This modeling study depicted the three-dimensional distribution of dust aerosols in a typical dust storm over the TB, Northwest China. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122337
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Desert Meteorology, China Meteorological Administration, Urumqi, 830002, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China; School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing, 210046, China
Recommended Citation:
Meng L.,Yang X.,Zhao T.,et al. Modeling study on three-dimensional distribution of dust aerosols during a dust storm over the Tarim Basin, Northwest China[J]. Atmospheric Research,2019-01-01,218