globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2020.117296
论文题名:
Interannual variation of the East Asia Jet Stream and its impact on the horizontal distribution of aerosol in boreal spring
作者: Lee S.; Lee M.-I.; Song C.-K.; Kim K.-M.; da Silva A.M.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 223
语种: 英语
英文关键词: 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
学科: Aerosol ; AOD ; Biomass burning ; Interannual variation ; Northeast Asia
中文摘要: 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
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被引频次[WOS]:9   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160515
Appears in Collections:气候变化与战略

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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

Recommended Citation:
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]. Atmospheric Environment,2020-01-01,223
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