Spatial distribution of marine atmospheric isoprene in the Southern Hemisphere: Role of atmospheric removal capacity

doi:10.1016/j.atmosenv.2022.119414

	Spatial distribution of marine atmospheric isoprene in the Southern Hemisphere: Role of atmospheric removal capacity
	Yu, Xiawei 1,6; Zhang, Yanli 5; Jin, Ruilin 1,6; Chai, Zhangyan 4; Hu, Qihou 3; Yu, Juan 1,6; Xing, Jie 1,6; Zhang, Lulu 1,6; Kang, Hui 1,6; Zhang, Yanxu 2
刊名	ATMOSPHERIC ENVIRONMENT
	2023
卷号	292
关键词	Isoprene Spatial distribution Influencing factors Marine emission capacity Atmospheric removal capacity
ISSN号	1352-2310
DOI	10.1016/j.atmosenv.2022.119414
通讯作者	Zhang, Yanxu(zhangyx@nju.edu.cn) ; Wang, Xinming(wangxm@gig.ac.cn) ; Xie, Zhouqing(zqxie@ustc.edu.cn)
英文摘要	Isoprene is important to the formation of secondary organic aerosols and can change the atmospheric oxidation capacity in the remote marine environment. However, the influencing factors of marine atmospheric isoprene are still unclear. Here, we report observed atmospheric isoprene in ambient air along three cruises path from the Arctic Ocean to the Southern Ocean. The levels of isoprene ranged from not detected (ND) to 452 pptv, with an average value of 48 +/- 81 pptv, with large variability. A negative correlation was found between isoprene and latitude (r =-0.40, p < 0.01). The spatial distributions of isoprene flux from oceanic phytoplankton by the modelled results were different from those of observed atmospheric isoprene. The observed isoprene concen-tration was 2-3 orders of magnitude higher than the model estimation. Environmental variables such as tem-perature, wind speed (WS), sea surface temperature (SST), salinity and atmospheric removal capacity can influence the distribution of isoprene. At latitudes north of 60S, the marine emission capacity was relatively important and contributed 45.06%. Atmospheric removal capacity was the most important factor for atmo-spheric isoprene, contributing 55.05% to the concentration of atmospheric isoprene in latitudes south of 60 degrees S. Low atmospheric oxidation capacity and wind speed cause high atmospheric isoprene in the Southern Ocean in summer and will eventually affect secondary organic aerosol concentrations.
资助项目	National Natural Science Foundation of China, China[41676173] ; National Natural Science Foundation of China, China[41941014] ; National Natural Science Foundation of China, China[42106219] ; Fundamental Research Funds for the Central Universities, China[WK2080000121] ; open fund of Key Lab of Environmental Optics and Technology of Chinese Academy of Sciences, China[2005DP173065-2018-02]
WOS关键词	NONMETHANE HYDROCARBONS ; BOUNDARY-LAYER ; ARCTIC-OCEAN ; DIMETHYL SULFIDE ; SURFACE OCEAN ; INDIAN-OCEAN ; NEW-MODEL ; EMISSIONS ; OXIDATION ; SEA
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000868625500001
资助机构	National Natural Science Foundation of China, China ; Fundamental Research Funds for the Central Universities, China ; open fund of Key Lab of Environmental Optics and Technology of Chinese Academy of Sciences, China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129907]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Yanxu; Wang, Xinming; Xie, Zhouqing
作者单位	1.Univ Sci & Technol China, Inst Polar Environm, Hefei 230026, Anhui, Peoples R China 2.Nanjing Univ, Sch Atmospher Sci, Joint Int Res Lab Atmospher & Earth Syst Sci, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 4.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Anhui, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 6.Univ Sci & Technol China, Dept Environm Sci & Technol, Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Yu, Xiawei,Zhang, Yanli,Jin, Ruilin,et al. Spatial distribution of marine atmospheric isoprene in the Southern Hemisphere: Role of atmospheric removal capacity[J]. ATMOSPHERIC ENVIRONMENT,2023,292.
APA	Yu, Xiawei.,Zhang, Yanli.,Jin, Ruilin.,Chai, Zhangyan.,Hu, Qihou.,...&Xie, Zhouqing.(2023).Spatial distribution of marine atmospheric isoprene in the Southern Hemisphere: Role of atmospheric removal capacity.ATMOSPHERIC ENVIRONMENT,292.
MLA	Yu, Xiawei,et al."Spatial distribution of marine atmospheric isoprene in the Southern Hemisphere: Role of atmospheric removal capacity".ATMOSPHERIC ENVIRONMENT 292(2023).