气候变化领域集成服务门户(CCPortal): Interannual variation of the East Asia Jet Stream and its impact on the horizontal distribution of aerosol in boreal spring

CCPortal

DOI	10.1016/j.atmosenv.2020.117296
	Interannual variation of the East Asia Jet Stream and its impact on the horizontal distribution of aerosol in boreal spring
	Lee S.; Lee M.-I.; Song C.-K.; Kim K.-M.; da Silva A.M.
发表日期	2020
ISSN	1352-2310
卷号	223
英文摘要	Interannual variation of the aerosol optical depth (AOD) in East Asia has been investigated using Moderate Resolution Imaging Spectroradiometer (MODIS) data and Modern Era Retrospective analysis for Research and Applications Version 2 (MERRA-2) data for 2000–2018. The data analysis focuses on boreal spring when Siberian biomass burning is at its seasonal maximum. The results indicate that the significant increase in organic and black carbon is primarily caused by emissions from biomass burning in East Asia, which leads to significant interannual variations in aerosol loading and pan-Pacific transport. The anomalous large-scale climate variability associated with the East Asia Jet Stream (EAJS) provides favorable conditions for increasing the AOD of organic and black carbon in Northeast Asia and may represent an underlying physical mechanism. When the EAJS shows greater weakening than normal, abnormal high-pressure anomalies are maintained in East Asia, which tend to drive warm advection over Northeast Asia. This warm advection expedites the melting of the Eurasian snow cover, which helps increase surface dryness in late spring and provides favorable conditions for biomass burning. The EAJS index can be predictable with statistical significance up to lead 1 month by the dynamical ensemble seasonal forecasts, suggesting a possible implementation of the empirical AOD forecasts using climate forecast models. © 2020 Elsevier Ltd
关键词	Aerosol AOD Biomass burning Interannual variation Northeast Asia
语种	英语
scopus关键词	Advection; Aerosols; Biomass; Carbon; Climate models; Digital storage; Forecasting; Organic carbon; Radiometers; Snow; Biomass-burning; Horizontal distribution; Interannual variation; Moderate resolution imaging spectroradiometer datum; Northeast Asia; Research and application; Retrospective analysis; Statistical significance; Atmospheric movements; black carbon; organic carbon; sulfate; advection; aerosol; annual variation; biomass burning; emission; MODIS; optical depth; satellite data; snow cover; spring (season); advection; aerosol; Article; Asia; biomass; climate change; dust; fire; precipitation; priority journal; snow cover; spring; wind; Northeast Asia
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/249344
作者单位	School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea; NASA Goddard Space Flight Center, GreenbeltMD, United States
推荐引用方式 GB/T 7714	Lee S.,Lee M.-I.,Song C.-K.,et al. Interannual variation of the East Asia Jet Stream and its impact on the horizontal distribution of aerosol in boreal spring[J],2020,223.
APA	Lee S.,Lee M.-I.,Song C.-K.,Kim K.-M.,&da Silva A.M..(2020).Interannual variation of the East Asia Jet Stream and its impact on the horizontal distribution of aerosol in boreal spring.ATMOSPHERIC ENVIRONMENT,223.
MLA	Lee S.,et al."Interannual variation of the East Asia Jet Stream and its impact on the horizontal distribution of aerosol in boreal spring".ATMOSPHERIC ENVIRONMENT 223(2020).