Ocean Science
Ocean Science
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Articles | Volume 21, issue 6
Articles | Volume 21, issue 6
https://doi.org/10.5194/os-21-3179-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-21-3179-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 6
Research article
 | 
26 Nov 2025
Research article |  | 26 Nov 2025

Deriving hourly diagnostic surface velocity fields considering inertia and an application in the Yellow Sea

Sung-Won Cho, Jang-Geun Choi, Deoksu Kim, Wenfang Lu, and Young-Heon Jo

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Cited articles

Bonjean, F. and Lagerloef, G. S. E.: Diagnostic Model and Analysis of the Surface Currents in the Tropical Pacific Ocean, Journal of Physical Oceanography, https://doi.org/10.1175/1520-0485(2002)032<2938:DMAAOT>2.0.CO;2, 2002. Bonjean, F. and Lagerloef, G. S. E.: Diagnostic Model and Analysis of the Surface Currents in the Tropical Pacific Ocean, https://doi.org/10.1175/1520-0485(2002)032<2938:DMAAOT>2.0.CO;2, 2002. 
C3S (Copernicus Climate Change Service) and CDS (Climate Data Store): ERA5 hourly data on single levels from 1940 to present, Copernicus Climate Change Service (C3S) Climate Data Store (CDS) [data set], https://doi.org/10.24381/cds.adbb2d47, 2023. 
Cho, S.-W.: Deriving hourly diagnostic surface velocity fields considering inertia and an application in the Yellow Sea, Zenodo [code, data set], https://doi.org/10.5281/zenodo.17509322, 2025. 
Choi, J.-G., Jo, Y.-H., Moon, I.-J., Park, J., Kim, D.-W., and Lippmann, T. C.: Physical forces determine the annual bloom intensity of the giant jellyfish Nemopilema nomurai off the coast of Korea, Reg. Stud. Mar. Sci., 24, 55–65, https://doi.org/10.1016/j.rsma.2018.07.003, 2018. 
Choi, J.-G., Kim, D., Shin, J., Jang, S.-W., Lippmann, T. C., Jo, Y.-H., Park, J., and Cho, S.-W.: New diagnostic sea surface current fields to trace floating algae in the Yellow Sea, Mar. Pollut. Bull., 195, 115494, https://doi.org/10.1016/j.marpolbul.2023.115494, 2023. 
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The Yellow Sea is known for its strong tidal and wind forcing that influence surface currents. However, traditional methods assume steady-state surface current, making it hard to capture effects of tide and typhoon. In this study, we developed a new method that considers inertia. By comparing our results with observations, we found that this approach provides improved accuracy compared to previous methods. This improvement can contribute to better understanding of dynamics in the Yellow Sea.
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