Articles | Volume 23, issue 14
https://doi.org/10.5194/bg-23-4911-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4911-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Impact of anticyclonic eddies on the spatial distribution and emission of non-methane hydrocarbons in the northern South China Sea
Zhen-Fei Liu
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Laoshan Laboratory, Qingdao 266237, China
Wen-Zhu Qiao
Weihai Institute of Product Quality Standard and Metrology Inspection, Weihai 264209, China
Ze-Yun Yang
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Gao-Bin Xu
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Jian Wang
CORRESPONDING AUTHOR
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Hao Qiao
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Cheng-Shuai Li
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Hong-Hai Zhang
CORRESPONDING AUTHOR
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
Laoshan Laboratory, Qingdao 266237, China
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Short summary
Mesoscale eddies can influence the biogeochemistry of non‑methane hydrocarbons (NMHCs). Eddy‑induced downwelling reduces nutrient availability in the euphotic zone, thereby suppressing phytoplankton growth and the biological production of alkanes and isoprene, while limited dissolved organic carbon constrains the photochemical production of alkenes. As a result, NMHC emissions within eddies were substantially reduced, weakening their contribution to ozone and secondary organic aerosol formation.
Mesoscale eddies can influence the biogeochemistry of non‑methane hydrocarbons (NMHCs)....
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