Articles | Volume 22, issue 5
https://doi.org/10.5194/os-22-3105-2026
© 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/os-22-3105-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Energetic near-inertial waves induced by winter storms and mesoscale eddies in the subtropical Northwestern Pacific Ocean
Hongkai Wang
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
College of Marine Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
Zifei Chen
CORRESPONDING AUTHOR
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Xinyuan Diao
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Laboratory for Ocean Dynamics and Climate, Qingdao Marine Science and Technology Center, Qingdao, 266071, China
College of Marine Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
Fei Yu
CORRESPONDING AUTHOR
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Laboratory for Ocean Dynamics and Climate, Qingdao Marine Science and Technology Center, Qingdao, 266071, China
College of Marine Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
Xingchuan Liu
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Qiang Ren
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Feng Nan
Key Laboratory of Ocean Observation and Forecasting & Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Laboratory for Ocean Dynamics and Climate, Qingdao Marine Science and Technology Center, Qingdao, 266071, China
College of Marine Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
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Qiang Ren, Yansong Liu, Yansheng Zhang, Shumin Tu, Wei Huang, Feng Nan, Ran Wang, Xinyuan Diao, Jianfeng Wang, Xinchuang Liu, Zifei Chen, and Fei Yu
Ocean Sci., 22, 2449–2469, https://doi.org/10.5194/os-22-2449-2026, https://doi.org/10.5194/os-22-2449-2026, 2026
Short summary
Short summary
This study reveals how mesoscale eddies modulate the North Pacific Intermediate Water (NPIW) using three long-term mooring observations. By introducing “intermediate water thickness” as a new structural indicator, it shows that eddies compress or expand the NPIW layer, producing 60–80-day intraseasonal variability. Thickness and salinity are strongly inversely related, providing the first quantitative evidence of eddy-induced structural changes in mid-depth waters.
Ren Qiang, Yansong Liu, Feng Nan, Ran Wang, Xinyuan Diao, Fei Yu, Zifei Chen, Jianfeng Wang, and Xinchuan Liu
EGUsphere, https://doi.org/10.5194/egusphere-2024-3227, https://doi.org/10.5194/egusphere-2024-3227, 2024
Preprint archived
Short summary
Short summary
In this study, direct measurements from three moorings are utilized to reveal the intraseasonal variability of the North Pacific Intermediate Water in different regions for 60–80 days. It was found that the intraseasonal variation of NPIW is mainly caused by mesoscale eddies. Understanding these dynamics is critical for assessing the NPIW's response to climate change and its implications for the global carbon cycle and marine ecosystems.
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Short summary
This study examines two near-inertial wave events during winter storms using subsurface mooring observations and reanalysis data. Wind energy input during the first storm was about three times that during the second, but the observed near-inertial energy was similar. Eddies and modal contents are important factors. The low modes dominates the first event, while the high modes dominates the second event. These factors together affect the wintertime interior mixing.
This study examines two near-inertial wave events during winter storms using subsurface mooring...