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DOI	10.1016/j.atmosenv.2021.118350
	Meteorological feedback and eco-environmental impact of Asian dust: A simulation study
	Yang S.; Wang Z.; Huang X.; Wang W.; Sheng L.; Zhou Y.
发表日期	2021
ISSN	1352-2310
卷号	253
英文摘要	Wind-blown dust plays a crucial role in air quality, biogeochemical cycles, and climate change. In East Asia, one of the main dust source regions in the world, dust storms frequently engulf eastern China, with a substantial negative effect on air pollution and the ecological environment. By integrating multiple observations and the online coupled meteorology-chemistry model WRF-Chem, a severe dust storm event originating from the Gobi Desert in early May 2017 is comprehensively analyzed from the perspective of emission estimation, meteorological feedback, and the possible impact on the ecological environment. We optimize the size distribution of dust aerosol by applying local observations to better represent dust emission and regional transport in the model. Both the observations and simulations indicate that the dust storm broke out with PM10 concentrations exceeding 1500 μg/m3 in the source region of the Gobi Desert, and was quickly transported downwind, deteriorating the air quality of cities in northern and eastern China. Moreover, we find that the dust storm significantly perturbed the temperature stratification, since mineral dust is a radiatively active aerosol and can absorb both short- and long-wave radiation. The upper dust layer at an altitude of around 2–3 km became warmer by 1–2 °C while the surface temperature decreased by about 2 °C, making the planetary boundary layer more stable and indirectly aggravating local air pollution near the ground in eastern China. Furthermore, during this event, a large amount of dust deposition increased ocean primary productivity, with the maximum Chlorophyll-a concentration rising from 4 to 14 mg/m3 in the central area of the Yellow Sea. This study highlights the critical impact of Asian dust pollution on air quality and marine ecosystems in downwind areas. © 2021 Elsevier Ltd
关键词	Asian dust Dust size distribution Phytoplankton growth WRF-Chem
语种	英语
scopus关键词	Aerosols; Air quality; Atmospheric movements; Biogeochemistry; Boundary layers; Chemical analysis; Climate change; Ecosystems; Size distribution; Storms; Asian dust; Dust size distribution; Dust storm; Eastern China; Eco-environmental; Ecological environments; Gobi desert; Phytoplankton growth; Source region; WRF/Chem; Dust; air quality; atmospheric pollution; boundary layer; climate change; climate feedback; concentration (composition); dust; dust storm; environmental impact; meteorology; pollutant source; primary production; regional climate; simulation; air pollution; air quality; Article; Asian; biogeochemical cycle; dust; dust storm; environmental impact; environmental monitoring; meteorological phenomena; nonhuman; priority journal; temperature; wind speed; China; Gobi Desert; Pacific Ocean; Yellow Sea
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248475
作者单位	College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, China; School of Atmospheric Sciences, Nanjing University, Nanjing, China
推荐引用方式 GB/T 7714	Yang S.,Wang Z.,Huang X.,et al. Meteorological feedback and eco-environmental impact of Asian dust: A simulation study[J],2021,253.
APA	Yang S.,Wang Z.,Huang X.,Wang W.,Sheng L.,&Zhou Y..(2021).Meteorological feedback and eco-environmental impact of Asian dust: A simulation study.ATMOSPHERIC ENVIRONMENT,253.
MLA	Yang S.,et al."Meteorological feedback and eco-environmental impact of Asian dust: A simulation study".ATMOSPHERIC ENVIRONMENT 253(2021).