Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2020.104892 |
Simulated regional transport structures and budgets of dust aerosols during a typical springtime dust storm in the Tarim Basin, Northwest China | |
Meng, Lu1,2; Yang, Xinghua1; Zhao, Tianliang2; He, Qing1; Mamtimin, Ali1; Wang, Minzhong1; Huo, Wen1; Yang, Fan1; Zhou, Chenglong1; Pan, Honglin1 | |
2020-07-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 238 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Occupying an area of about 1,020,000 km(-2 )with the sparse vegetation and the Taklimakan Desert(TD), The Tarim Basin (TB) is isolated by the surrounding mountains and plateaus, especially to the north of the Tibetan Plateau (TP) with a large drop in elevation. An intense dust storm occurring over TB, Northwest China from April 27 to May 1, 2015 was simulated by using the Weather Research and Forecasting model with chemistry (WRF-Chem v3.8.1). The sources of dust emissions were centered over the northeastern TB with the high dust emission flux reaching 24 mu gm(-2) s(-1) injected by strong near-surface northeasterly winds from basin mouth invading the TD. A large amount of dust aerosols accumulated in the windward northern slope of the TP. Dry deposition is the dominant removal process of dust aerosols from the atmosphere over the arid TB. The spatial distribution of dust dry deposition in the TB was similar to the columnar dust loading pattern during this dust storm event. With the impacts of the TB deep terrain structures on atmospheric circulation, the high column loading of dust aerosols was concentrated over the southeastern TB, where dust aerosols mainly accumulated at the lower troposphere below 3000 m. Once dust aerosols were lifted at a high elevation ( > 3500 m), they were exported from the TB driven by the westerlies in the free troposphere, and the zonal transport flux of dust aerosols ( > 3000 mu gm(-2) s(-1)) peaked at an elevation of approximately 4000 m along 41 degrees N over the TB. The eastern border of TB was found to be the largest contributors to dust export from the TB. It was estimated for this intense dust storm that among the dust aerosols emitted from the dust emission sources over the TD, about 22.28% of dust aerosols were relatively inefficiently exported for the downwind dust regional transport from the TB compared to about 27.17% dust aerosols deposited on the basin surface, and a high fraction of about 50.54% dust aerosols suspending in the atmosphere over the TB, implying a significant implication of dust aerosols from the TD for climate and environment over the central Asian region. |
英文关键词 | Tarim Basin Dust aerosols WRF-Chem simulation Regional transport Aerosol budget |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000525323500009 |
WOS关键词 | ATMOSPHERIC BOUNDARY-LAYER ; NONLOCAL CLOSURE-MODEL ; PART I ; MINERAL DUST ; LAND-SURFACE ; CLIMATE ; TAKLIMAKAN ; PACIFIC ; CLOUD ; SYSTEM |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/289278 |
专题 | 地球科学 |
作者单位 | 1.China Meteorol Adm, Inst Desert Meteorol, Urumqi 830002, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Key Lab Aerosol Cloud Precipitat China Meteorol A, Nanjing 210044, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Meng, Lu,Yang, Xinghua,Zhao, Tianliang,et al. Simulated regional transport structures and budgets of dust aerosols during a typical springtime dust storm in the Tarim Basin, Northwest China[J]. ATMOSPHERIC RESEARCH,2020,238. |
APA | Meng, Lu.,Yang, Xinghua.,Zhao, Tianliang.,He, Qing.,Mamtimin, Ali.,...&Pan, Honglin.(2020).Simulated regional transport structures and budgets of dust aerosols during a typical springtime dust storm in the Tarim Basin, Northwest China.ATMOSPHERIC RESEARCH,238. |
MLA | Meng, Lu,et al."Simulated regional transport structures and budgets of dust aerosols during a typical springtime dust storm in the Tarim Basin, Northwest China".ATMOSPHERIC RESEARCH 238(2020). |
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