干旱区生态环境知识资源中心(Arid): Modeling Dust in East Asia by CESM and Sources of Biases

Arid

DOI	10.1029/2019JD030799
	Modeling Dust in East Asia by CESM and Sources of Biases
	Wu, Mingxuan 1; Liu, Xiaohong 1; Yang, Kang 1,2; Luo, Tao 1; Wane, Zhien 1,2; Wu, Chenglai 1; Zhang, Kai 3; Yu, Hongbin 4; Darmenov, Anton 4
通讯作者	Liu, Xiaohong
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2019
卷号	124 期号:14 页码:8043-8064
英文摘要	East Asian dust has a significant impact on regional and global climate. In this study, we evaluate the spatial distributions and temporal variations of dust extinction profiles and dust optical depth (DOD) over East Asia simulated from the Community Earth System Model (CESM) with satellite retrievals from Luo, Wang, Ferrare, et al. (2015, https://doi.org/10.1029/2002JD002775),, Luo, Wang, Zhang, et al. (2015, https://doi.org/10.1002/2014GL062111) (L15), Yu et al. (2015, https://doi.org/10.1016/j.rse.2014.12.010) (Y15), and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) level 3 products. Both L15 and Y15 are based on CALIPSO products but use different algorithms to separate dust from nondust aerosols. We find high model biases of dust extinction in the upper troposphere over the Taklamakan desert, Gobi desert, and Tibetan Plateau, especially in the summer (June-July-August). CESM with dust emission scheme of Kok, Mahowald, et al. (2014, https://doi.org/10.5194/acp-14-13023-2014) and Kok, Albani, et al. (2014, https://doi.org/10.5194/acp-14-13043-2014) has the best agreement with dust extinction profiles and DOD from L15 in the Taklamakan desert and Tibetan Plateau. CESM with the default dust emission scheme of Zender, Bian, and Newman (2003, https://doi.org/10.1029/2002JD002775) underpredicts DOD in the Tibetan Plateau compared with observations from L15 due to the underestimation of local dust emission. Large uncertainties exist in observations from L15, Y15, and CALIPSO level 3 products and have significant impacts on the model evaluation of dust spatial distributions. We also assess dust surface concentrations and 10-m wind speed with meteorological records from weather stations in the Taklamakan and Gobi deserts during dust events. CESM underestimates dust surface concentrations at most weather stations due to the inability of CESM to capture strong surface wind events.
英文关键词	CESM dust CALIPSO East Asia model biases
类型	Article
语种	英语
国家	USA
开放获取类型	Green Submitted, Green Accepted, Bronze
收录类别	SCI-E
WOS记录号	WOS:000481444200033
WOS关键词	EARTH SYSTEM MODEL ; REGIONAL CLIMATE ; DESERT DUST ; EMISSION MODEL ; NORTH-AFRICA ; AEROSOL ; TRANSPORT ; STORM ; CALIPSO ; PRECIPITATION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217072
作者单位	1.Univ Wyoming, Dept Atmospher Sci, Laramie, WY 82071 USA; 2.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA; 3.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA; 4.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA
推荐引用方式 GB/T 7714	Wu, Mingxuan,Liu, Xiaohong,Yang, Kang,et al. Modeling Dust in East Asia by CESM and Sources of Biases[J],2019,124(14):8043-8064.
APA	Wu, Mingxuan.,Liu, Xiaohong.,Yang, Kang.,Luo, Tao.,Wane, Zhien.,...&Darmenov, Anton.(2019).Modeling Dust in East Asia by CESM and Sources of Biases.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(14),8043-8064.
MLA	Wu, Mingxuan,et al."Modeling Dust in East Asia by CESM and Sources of Biases".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.14(2019):8043-8064.