The distribution and emission of CO2, CH4 and light hydrocarbons in an anticyclonic eddy of the Kuroshio extension

doi:10.3389/fmars.2023.1181896

	The distribution and emission of CO2, CH4 and light hydrocarbons in an anticyclonic eddy of the Kuroshio extension
	Li, Xiao-Jun 1,2,3; Wang, Jian 1,2,3; Qiao, Hao 1,2,3; Zhu, Rui-Chen 4; Zhang, Hong-Hai 1,2,3; Chen, Zhao-Hui 4; Montgomery, Andrew 5; Zheng, Shan 2,6; Zhuang, Guang-Chao 1,2,3
	2023-05-24
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	10 页码:13
通讯作者	Zhang, Hong-Hai() ; Zhuang, Guang-Chao()
摘要	Mesoscale eddies are energetic and swirling circulations that frequently occur in the open ocean. The effects of mesoscale eddies on the biogeochemical cycling of climate-relevant gases remain poorly constrained. We investigated the distribution and air-sea fluxes of CO2, methane, and five non-methane hydrocarbons (NMHCs) in an anticyclone eddy of Kuroshio Extension during September 2019. Within eddy core, intense stratification hindered the replenishment of nutrients and favored the growth of small-size phytoplankton, such as Prochlorococcus. Seawater pCO(2) decreased from 406.1 mu atm at the eddy outside to 377.5 mu atm at the eddy core, accompanied by a decrease in surface seawater temperature from 26.7 degrees C to 25.2 degrees C. The vertical distribution of methane (0.3-9.9 nmol L-1) was influenced by the eddy process, with a maximum at 80 m in the eddy core, which might be attributed to the degradation of phosphonates sustained by Prochlorococcus. The concentrations of five NMHCs (ethane, ethylene, propane, propylene, and isoprene) ranged from 17.2-126.2, 36.7-168.1, 7.5-29.2, 22.6-64.1, 54.5-172.1, 3.5-27.9 pmol L-1, respectively. Isoprene correlated well with Chl-a concentrations at the eddy core, while no significant correlation was observed at the eddy outside. Air-sea fluxes of CO2 and isoprene associated with the eddy core were higher than those of the eddy outside, while the maximum ventilation of methane and other NMHCs (ethane, ethylene, propane, and propylene) was found at the eddy outside. Collectively, physical processes such as eddies impact the production and distribution of light hydrocarbons in seawater and further influence their regional emissions to the atmosphere.
关键词	mesoscale eddy Kuroshio and Oyashio Extension (KOE) climate-relevant gases air-sea fluxes CO2 methane non-methane hydrocarbons
DOI	10.3389/fmars.2023.1181896
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:001006707000001
出版者	FRONTIERS MEDIA SA
WOS关键词	DISSOLVED ORGANIC-CARBON ; NONMETHANE HYDROCARBONS ; MESOSCALE EDDIES ; SURFACE SEAWATER ; METHANE ; PHYTOPLANKTON ; PACIFIC ; ISOPRENE ; OCEAN ; VARIABILITY
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182303
专题	胶州湾海洋生态系统国家野外研究站
通讯作者	Zhang, Hong-Hai; Zhuang, Guang-Chao
作者单位	1.Minist Educ, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Marine Chem Theory & Technol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Ocean Univ China, Coll Chem & Chem Engn, Qingdao, Peoples R China 4.Ocean Univ China, Inst Adv Ocean Study, Phys Oceanog Lab, Qingdao, Peoples R China 5.Montana State Univ, Dept Chem & Biochem, Bozeman, MT USA 6.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiao-Jun,Wang, Jian,Qiao, Hao,et al. The distribution and emission of CO2, CH4 and light hydrocarbons in an anticyclonic eddy of the Kuroshio extension[J]. FRONTIERS IN MARINE SCIENCE,2023,10:13.
APA	Li, Xiao-Jun.,Wang, Jian.,Qiao, Hao.,Zhu, Rui-Chen.,Zhang, Hong-Hai.,...&Zhuang, Guang-Chao.(2023).The distribution and emission of CO2, CH4 and light hydrocarbons in an anticyclonic eddy of the Kuroshio extension.FRONTIERS IN MARINE SCIENCE,10,13.
MLA	Li, Xiao-Jun,et al."The distribution and emission of CO2, CH4 and light hydrocarbons in an anticyclonic eddy of the Kuroshio extension".FRONTIERS IN MARINE SCIENCE 10(2023):13.