干旱区生态环境知识资源中心(Arid): Influence of Dynamic and Thermal Forcing on the Meridional Transport of Taklimakan Desert Dust in Spring and Summer

Arid

DOI	10.1175/JCLI-D-18-0361.1
	Influence of Dynamic and Thermal Forcing on the Meridional Transport of Taklimakan Desert Dust in Spring and Summer
	Yuan, Tiangang 1; Chen, Siyu 1; Huang, Jianping 1; Wu, Dongyou 1; Lu, Hui 2; Zhang, Guolong 1; Ma, Xiaojun 1; Chen, Ziqi 1; Luo, Yuan 1; Ma, Xiaohui 3
通讯作者	Chen, Siyu
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2019
卷号	32 期号:3 页码:749-767
英文摘要	The Weather Research and Forecasting Model coupled with chemistry (WRF-Chem) associated with in situ measurements and satellite retrievals was used to investigate the meridional transport of Taklimakan Desert (TD) dust, especially in summer. Both satellite observations and simulations reveal that TD dust particles accumulate over the Tibetan Plateau (TP) and the Tianshan Mountains in summer, resulting in higher dust concentration up to 85 g m(-3) here. The proportions of meridional transport of TD dust in summer increase up to 30% of the total output dust over the TD. Further, the impacts of thermal and dynamic forcing on the meridional transport of TD dust to the TP and Tianshan Mountains are investigated based on composite analysis and numerical modeling. It is found that the weakness of the westerly jet over East Asia significantly decreases the eastward transport of TD dust. More TD dust particles lifted to higher altitude reach up to 8 km induced by the enhanced sensible heating in summer. Under the influence of the northerly airflow over the TD regions, the TD dust particles are strengthened southward and transported to the northern slope of the TP through topographic forcing. Moreover, the cyclonic circulation raises dust particles to higher altitude over the TP. It can further intensify the TP heat source by direct radiative forcing of dust aerosols, which may have a positive feedback to the southward transport of TD dust. This research provides confidence for the investigation of the role of TP dust with regard to the radiation balance and hydrological cycle over East Asia.
英文关键词	Atmospheric circulation Heating Transport Regional models Aerosol optical properties Aerosol radiative effect
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000455436200001
WOS关键词	AEROSOL OPTICAL DEPTH ; TIBETAN PLATEAU ; MINERAL DUST ; EAST-ASIA ; PART I ; SPATIAL-DISTRIBUTION ; SEMIARID CLIMATE ; REGIONAL CLIMATE ; RADIATION MODEL ; NORTH-AFRICA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216875
作者单位	1.Lanzhou Univ, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou, Gansu, Peoples R China; 2.China Meteorol Adm, Inst Desert Meteorol, Urumqi, Peoples R China; 3.Karamay Meteorol Bur Xinjiang Prov, Karamay, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Tiangang,Chen, Siyu,Huang, Jianping,et al. Influence of Dynamic and Thermal Forcing on the Meridional Transport of Taklimakan Desert Dust in Spring and Summer[J]. 兰州大学,2019,32(3):749-767.
APA	Yuan, Tiangang.,Chen, Siyu.,Huang, Jianping.,Wu, Dongyou.,Lu, Hui.,...&Ma, Xiaohui.(2019).Influence of Dynamic and Thermal Forcing on the Meridional Transport of Taklimakan Desert Dust in Spring and Summer.JOURNAL OF CLIMATE,32(3),749-767.
MLA	Yuan, Tiangang,et al."Influence of Dynamic and Thermal Forcing on the Meridional Transport of Taklimakan Desert Dust in Spring and Summer".JOURNAL OF CLIMATE 32.3(2019):749-767.