干旱区生态环境知识资源中心(Arid): Estimation of marine dimethyl sulfide emissions from East Asian seas and their impact on natural direct radiative forcing

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DOI	10.1016/j.atmosenv.2019.117165
	Estimation of marine dimethyl sulfide emissions from East Asian seas and their impact on natural direct radiative forcing
	Choi, Yu-Na 1; Song, Sang-Keun 2; Lee, Sang Heon 3; Moon, Jae-Hong 2
通讯作者	Song, Sang-Keun
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2020
卷号	222
英文摘要	This study investigated the impacts of marine dimethyl sulfide (DMS) emitted from East Asian seas on natural direct radiative forcing (DRF) based on a numerical modeling approach. The high-resolution (4 km) DMS emissions (i.e., DMS flux) were estimated from sea surface DMS concentrations and transfer velocity in the air-sea interface using satellite observations and model-predicted data during the period 2014-2016. We inputted these emission data into an aerosol optical model and then estimated the natural DRF of sulfate aerosols derived from the DMS flux (i.e., DMS-derived sulfate) using a radiative transfer model. The total mean DMS flux in the study area during the study period was estimated to be approximately 0.73 mu mol/m(2)/day, with a maximum of 3.4 mu mol/m(2)/day (December 2014) and a minimum of 0.12 mu mol/m(2)/day (March 2014). The total mean negative forcing at the top of the atmosphere (DRFTOA) due to the DMS-derived sulfate was approximately -1.3 W m(-2) in the target area during the study period. The monthly maximum (-2.8 W m(-2)) and minimum DRFTOA (-0.82 W m(-2)) occurred in December and March 2014, respectively, with the highest and lowest forcing at the surface and in the atmosphere during the same months. In terms of spatial distributions over the entire study area, negative DRFTOA exhibited a maximum of up to -8.8 W m(-2) in the coastal sea near Shanghai, China, and a minimum of -0.6 Wm(-2) in the offshore sea of the East Sea, Korea. These increases and decreases in the natural DRFs were strongly attributed to the DMS fluxes, which were affected mainly by sea surface wind and/or partially by DMS concentrations, and relative humidity conditions in the study region.
英文关键词	DMS flux Natural direct radiative forcing Sea surface wind Seawater DMS concentration Relative humidity East Asian seas
类型	Article
语种	英语
国家	South Korea
收录类别	SCI-E
WOS记录号	WOS:000510946800047
WOS关键词	OPTICAL-PROPERTIES ; ANTHROPOGENIC SULFATE ; AEROSOL DIRECT ; DESERT DUST ; YELLOW SEA ; BOHAI SEA ; OCEAN ; DMS ; SURFACE ; CLIMATE
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314141
作者单位	1.Natl Inst Meteorol Sci, Global Environm Syst Res Div, Jeju Do 63568, South Korea; 2.Jeju Natl Univ, Dept Earth & Marine Sci, 102 Jejudaehak Ro, Jeju 63243, South Korea; 3.Pusan Natl Univ, Dept Oceanog, Busan 46241, South Korea
推荐引用方式 GB/T 7714	Choi, Yu-Na,Song, Sang-Keun,Lee, Sang Heon,et al. Estimation of marine dimethyl sulfide emissions from East Asian seas and their impact on natural direct radiative forcing[J],2020,222.
APA	Choi, Yu-Na,Song, Sang-Keun,Lee, Sang Heon,&Moon, Jae-Hong.(2020).Estimation of marine dimethyl sulfide emissions from East Asian seas and their impact on natural direct radiative forcing.ATMOSPHERIC ENVIRONMENT,222.
MLA	Choi, Yu-Na,et al."Estimation of marine dimethyl sulfide emissions from East Asian seas and their impact on natural direct radiative forcing".ATMOSPHERIC ENVIRONMENT 222(2020).