兰州大学机构库 >大气科学学院
Emission, transport, and radiative effects of mineral dust from the Taklimakan and Gobi deserts: comparison of measurements and model results
Chen, SY; Huang, JP(黄建平); Kang, LT; Wang, H; Ma, XJ; He, YL; Yuan, TG; Yang, B; Huang, ZW(黄忠伟); Zhang, GL; Huang, JP (reprint author), Lanzhou Univ, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou, Peoples R China.
2017-02-15
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
卷号17期号:3页码:2401-2421
出版者COPERNICUS GESELLSCHAFT MBH
摘要The Weather Research and Forecasting Model with chemistry (WRF-Chem model) was used to investigate a typical dust storm event that occurred from 18 to 23 March 2010 and swept across almost all of China, Japan, and Korea. The spatial and temporal variations in dust aerosols and the meteorological conditions over East Asia were well reproduced by the WRF-Chem model. The simulation results were used to further investigate the details of processes related to dust emission, long-range transport, and radiative effects of dust aerosols over the Taklimakan Desert (TD) and Gobi Desert (GD). The results indicated that weather conditions, topography, and surface types in dust source regions may influence dust emission, uplift height, and transport at the regional scale. The GD was located in the warm zone in advance of the cold front in this case. Rapidly warming surface temperatures and cold air advection at high levels caused strong instability in the atmosphere, which strengthened the downward momentum transported from the middle and low troposphere and caused strong surface winds. Moreover, the GD is located in a relatively flat, high-altitude region influenced by the confluence of the northern and southern westerly jets. Therefore, the GD dust particles were easily lofted to 4 km and were the primary contributor to the dust concentration over East Asia. In the dust budget analysis, the dust emission flux over the TD was 27.2 +/- 4.1 mu g m(-2) s(-1), which was similar to that over the GD (29 +/- 3.6 mu g m(-2) s(-1)). However, the transport contribution of the TD dust (up to 0.8 ton d(-1)) to the dust sink was much smaller than that of the GD dust (up to 3.7 ton d(-1) ) because of the complex terrain and the prevailing wind in the TD. Notably, a small amount of the TD dust (PM2 : 5 dust concentration of approximately 8.7 mu g m(-3) ) was lofted to above 5 km and transported over greater distances under the influence of the westerly jets. Moreover, the direct radiative forcing induced by dust was estimated to be -3 and -7 Wm(-2) at the top of the atmosphere, -8 and -10 W m(-2) at the surface, and +5 and +3Wm(-2) in the atmosphere over the TD and GD, respectively. This study provides confidence for further understanding the climate effects of the GD dust.
出版地GOTTINGEN
学科领域Meteorology & Atmospheric Sciences
作者部门
[Chen, Siyu;
Huang, Jianping;
Kang, Litai;
Wang, Hao;
Ma, Xiaojun;
He, Yongli;
Yuan, Tiangang;
Huang, Zhongwei;
Zhang, Guolong] Lanzhou Univ, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou, Peoples R China;
[Yang, Ben] Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China...更多
DOI10.5194/acp-17-2401-2017
文章类型Article
收录类别SCIE
所属项目编号Foundation for Innovative Research Groups of the National Science Foundation of China [41521004] ; National Natural Science Foundation of China [41405003]
语种英语
资助项目国家自然科学基金项目
项目资助者NSFC
WOS记录号WOS:000395130600004
IR记录号WOS:000395130600004
第一机构
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文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/189559
Collection大气科学学院
通讯作者Huang, JP (reprint author), Lanzhou Univ, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou, Peoples R China.
Recommended Citation:
GB/T 7714
Chen, SY,Huang, JP,Kang, LT,et al. Emission, transport, and radiative effects of mineral dust from the Taklimakan and Gobi deserts: comparison of measurements and model results[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(3):2401-2421.
APA Chen, SY.,Huang, JP.,Kang, LT.,Wang, H.,Ma, XJ.,...&Huang, JP .(2017).Emission, transport, and radiative effects of mineral dust from the Taklimakan and Gobi deserts: comparison of measurements and model results.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(3),2401-2421.
MLA Chen, SY,et al."Emission, transport, and radiative effects of mineral dust from the Taklimakan and Gobi deserts: comparison of measurements and model results".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.3(2017):2401-2421.
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