Articles | Volume 22, issue 5
https://doi.org/10.5194/os-22-2659-2026
© 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-22-2659-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Asymmetric response of coastal currents to oscillating alongshore wind stress over a coastal bank
Jihun Jung
College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USA
School of Earth and Environmental Sciences/Research Institute of Oceanography, Seoul National University, Seoul, Republic of Korea
Gwang-Ho Seo
Korea Hydrographic and Oceanographic Agency, Busan, Republic of Korea
Kwang-Young Jeong
Korea Hydrographic and Oceanographic Agency, Busan, Republic of Korea
Related authors
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Taek-Bum Jeong, Yong Sun Kim, Hyeonsoo Cha, Kwang-Young Jeong, Jin-Yong Jeong, and Jae-Ho Lee
Ocean Sci., 21, 2085–2099, https://doi.org/10.5194/os-21-2085-2025, https://doi.org/10.5194/os-21-2085-2025, 2025
Short summary
Short summary
This study presents a new method to improve the accuracy of sea level height from the Ieodo Ocean Research Station in the East China Sea. The method helps identify data errors, such as repeated or unusual values, and flags extreme weather events. The analysis found that sea level rise is mostly due to ocean mass changes, with local ground subsidence also playing a role. These high-quality data support research on short- and long-term events, helping coastal monitoring and planning efforts.
Cited articles
Allen, J. S.: Models of wind-driven currents on the continental shelf, Annu. Rev. Fluid Mech., 12, 389–433, https://doi.org/10.1146/annurev.fl.12.010180.002133, 1980.
Allen, S. E. and Hickey, B. M.: Dynamics of advection‐driven upwelling over a shelf break submarine canyon, J. Geophys. Res.-Oceans, 115, C08018, https://doi.org/10.1029/2009JC005731, 2010.
Bane Jr., J. M., Brown, O. B., Evans, R. H., and Hamilton, P.: Gulf Stream remote forcing of shelfbreak currents in the Mid‐Atlantic Bight, Geophys. Res. Lett., 15, 405–407, https://doi.org/10.1029/GL015i005p00405, 1988.
Barth, J. A., Pierce, S. D., and Castelao, R. M.: Time‐dependent, wind‐driven flow over a shallow midshelf submarine bank, J. Geophys. Res.-Oceans, 110, C10S05, https://doi.org/10.1029/2004JC002761, 2005.
Brink, K. H.: Low-Frequency Free Wave and Wind-Driven Motions Over a Submarine Bank, J. Phys. Oceanogr., 13, 103–116, https://doi.org/10.1175/1520-0485(1983)013<0103:LFFWAW>2.0.CO;2, 1983.
Brink, K. H.: Coastal ocean physical processes, Rev. Geophys., 25, 204–216, https://doi.org/10.1029/RG025i002p00204, 1987.
Brink, K. H.: Coastal-trapped waves with finite bottom friction, Dynam. Atmos. Oceans, 41, 172–190, https://doi.org/10.1016/j.dynatmoce.2006.05.001, 2006.
Brink, K. H., Limeburner, R., and Beardsley, R. C.: Properties of flow and pressure over Georges Bank as observed with near-surface drifters, J. Geophys. Res.-Oceans, 108, https://doi.org/10.1029/2001JC001019, 2003.
Brink, K. H., Beardsley, R. C., Limeburner, R., Irish, J. D., and Caruso, M.: Long-term moored array measurements of currents and hydrography over Georges Bank: 1994–1999, Prog. Oceanogr., 82, 191–223, https://doi.org/10.1016/j.pocean.2009.07.004, 2009.
Castelao, R. M. and Barth, J. A.: Coastal ocean response to summer upwelling favorable winds in a region of alongshore bottom topography variations off Oregon, J. Geophys. Res.-Oceans, 110, https://doi.org/10.1029/2004JC002409, 2005.
Castelao, R. M. and Barth, J. A.: The relative importance of wind strength and along-shelf bathymetric variations on the separation of a coastal upwelling jet, J. Phys. Oceanogr., 36, 412–425, https://doi.org/10.1175/JPO2867.1, 2006.
Chen, C. and Beardsley, R. C.: A Numerical Study of Stratified Tidal Rectification over Finite-Amplitude Banks. Part I: Symmetric Banks, J. Phys. Oceanogr., 25, 2090–2110, https://doi.org/10.1175/1520-0485(1995)025<2090:ANSOST>2.0.CO;2, 1995.
Chen, C., Beardsley, R. C., and Limeburner, R.: A Numerical Study of Stratified Tidal Rectification over Finite-Amplitude Banks. Part II: Georges Bank, J. Phys. Oceanogr., 25, 2111–2128, https://doi.org/10.1175/1520-0485(1995)025<2111:ANSOST>2.0.CO;2, 1995.
Chen, Z., Jiang, Y., Wang, J., and Gong, W.: Influence of a River Plume on Coastal Upwelling Dynamics: Importance of Stratification, J. Phys. Oceanogr., 49, 2345–2363, https://doi.org/10.1175/JPO-D-18-0215.1, 2019.
Chen, Z., Li, C., Zhang, S., Jiang, Y., and Wang, A.: Effects of Stratification on Wind-Driven Upwelling Over a Coastal Valley, J. Geophys. Res.-Oceans, 129, e2024JC021063, https://doi.org/10.1029/2024JC021063, 2024.
Cho, Y.-K., Seo, G.-H., Choi, B.-J., Kim, S., Kim, Y.-G., Youn, Y.-H., and Dever, E. P.: Connectivity among straits of the northwest Pacific marginal seas, J. Geophys. Res.-Oceans, 114, https://doi.org/10.1029/2008JC005218, 2009.
Cho, Y.-K., Seo, G.-H., Kim, C.-S., Choi, B.-J., and Shaha, D. C.: Role of wind stress in causing maximum transport through the Korea Strait in autumn, J. Mar. Syst., 115–116, 33–39, https://doi.org/10.1016/j.jmarsys.2013.02.002, 2013.
Csanady, G. T.: The Arrested Topographic Wave, J. Phys. Oceanogr., 8, 47–62, https://doi.org/10.1175/1520-0485(1978)008<0047:TATW>2.0.CO;2, 1978.
Davidson, F. J., Greatbatch, R. J., and de Young, B.: Asymmetry in the response of a stratified coastal embayment to wind forcing, J. Geophys. Res.-Oceans, 106, 7001–7015, https://doi.org/10.1029/2000JC900052, 2001.
Gan, J. and Allen, J. S.: A modeling study of shelf circulation off northern California in the region of the Coastal Ocean Dynamics Experiment: Response to relaxation of upwelling winds, J. Geophys. Res.-Oceans, 107, 6-1–6-31, https://doi.org/10.1029/2000JC000768, 2002.
Gan, J., Cheung, A., Guo, X., and Li, L.: Intensified upwelling over a widened shelf in the northeastern South China Sea, J. Geophys Res.-Oceans, 114, https://doi.org/10.1029/2007JC004660, 2009.
Geyer, W. R., Hill, P. S., and Kineke, G. C.: The transport, transformation and dispersal of sediment by buoyant coastal flows, Cont. Shelf Res., 24, 927–949, https://doi.org/10.1016/j.csr.2004.02.006, 2004.
Hinata, H., Yanagi, T., and Satoh, C.: Sea level response to wind field fluctuation around the tip of the Izu Peninsula, J. Oceanogr., 64, 605–620, https://doi.org/10.1007/s10872-008-0051-z, 2008.
Hsueh, Y. and Kenney III, R. N.: Steady coastal upwelling in a continuously stratified ocean, J. Phys. Oceanogr., 2, 27–33, https://doi.org/10.1175/1520-0485(1972)002<0027:SCUIAC>2.0.CO;2, 1972.
Huyer, A., Smith, R. L., and Sobey, E. J.: Seasonal differences in low‐frequency current fluctuations over the Oregon continental shelf, J. Geophys. Res.-Oceans, 83, 5077–5089, https://doi.org/10.1029/JC083iC10p05077, 1978.
James, I. D.: Modelling pollution dispersion, the ecosystem and water quality in coastal waters: a review, Environ. Modell. Softw., 17, 363–385, https://doi.org/10.1016/S1364-8152(01)00080-9, 2002.
Jung, J. and Cho, Y.-K.: Persistence of coastal upwelling after a plunge in upwelling-favourable wind, Sci. Rep., 10, 1–9, https://doi.org/10.1038/s41598-020-67785-x, 2020.
Jung, J. and Cho, Y.-K.: Effects of Surface Heating on Coastal Upwelling Intensity, J. Geophys. Res.-Oceans, 128, e2022JC018795, https://doi.org/10.1029/2022JC018795, 2023.
Kim, C.-S., Cho, Y.-K., Seo, G.-H., Choi, B.-J., Jung, K. T., and Lee, B.-G.: Interannual variation of freshwater transport and its causes in the Korea Strait: A modeling study, J. Mar. Syst., 132, 66–74, https://doi.org/10.1016/j.jmarsys.2014.01.007, 2014.
Kirincich, A. R. and Barth, J. A.: Alongshelf variability of inner-shelf circulation along the central Oregon coast during summer, J. Phys. Oceanogr., 39, 1380–1398, 2009.
Kosro, P. M.: On the spatial structure of coastal circulation off Newport, Oregon, during spring and summer 2001 in a region of varying shelf width, J. Geophys. Res.-Oceans, 110, C10S06, https://doi.org/10.1029/2004JC002769, 2005.
Ku, A., Seung, Y. H., Jeon, C., Choi, Y., Yoshizawa, E., Shimada, K., Cho, K.-H., and Park, J.-H.: Observation of Bottom-Trapped Topographic Rossby Waves on the Shelf Break of the Chukchi Sea, J. Geophys. Res.-Oceans, 125, e2019JC015436, https://doi.org/10.1029/2019JC015436, 2020.
Ledwell, J. R., Watson, A. J., and Law, C. S.: Mixing of a tracer in the pycnocline, J. Geophys. Res.-Oceans, 103, 21499–21529, https://doi.org/10.1029/98JC01738, 1998.
Liao, E., Oey, L. Y., Yan, X.-H., Li, L., and Jiang, Y.: The deflection of the China Coastal Current over the Taiwan Bank in winter, J. Phys. Oceanogr., 48, 1433–1450, https://doi.org/10.1175/JPO-D-17-0037.1, 2018.
Liu, Z. and Gan, J.: Modeling study of variable upwelling circulation in the East China Sea: Response to a coastal promontory, J. Phys. Oceanogr., 44, 1078–1094, https://doi.org/10.1175/JPO-D-13-0170.1, 2014.
Martell, C. M. and Allen, J. S.: The Generation of Continental Shelf Waves by Alongshore Variations in Bottom Topography, J. Phys. Oceanogr., 9, 696–711, https://doi.org/10.1175/1520-0485(1979)009<0696:TGOCSW>2.0.CO;2, 1979.
Mellor, G. L. and Yamada, T.: Development of a turbulence closure model for geophysical fluid problems, Rev. Geophys., 20, 851–875, https://doi.org/10.1029/RG020i004p00851, 1982.
Naimie, C. E.: Georges Bank residual circulation during weak and strong stratification periods: Prognostic numerical model results, J. Geophys. Res.-Oceans, 101, 6469–6486, https://doi.org/10.1029/95JC03698, 1996.
Naimie, C. E., Loder, J. W., and Lynch, D. R.: Seasonal variation of the three-dimensional residual circulation on Georges Bank, J. Geophys. Res.-Oceans, 99, 15967–15989, https://doi.org/10.1029/94JC01202, 1994.
Noble, M., Butman, B., and Wimbush, M.: Wind–Current Coupling on the Southern Flank of Georges Bank: Variation with Season and Frequency, J. Phys. Oceanogr., 15, https://doi.org/10.1175/1520-0485(1985)015<0604:WCOTSF>2.0.CO;2, 1985.
Oey, L.-Y., Zhang, Y.-H., and Chen, P.: Simulation of the Norwegian Coastal Current in the vicinity of the Halten Bank: comparison with observations and process study of bank-induced meanders, J. Mar. Syst., 3, 391–416, https://doi.org/10.1016/0924-7963(92)90012-W, 1992.
Oey, L.-Y., Chang, Y.-L., Lin, Y.-C., Chang, M.-C., Varlamov, S., and Miyazawa, Y.: Cross flows in the Taiwan Strait in winter, J. Phys. Oceanogr., 44, 801–817, https://doi.org/10.1175/JPO-D-13-0128.1, 2014.
Palma, E. D. and Matano, R. P.: Disentangling the upwelling mechanisms of the South Brazil Bight, Cont. Shelf Res., 29, 1525–1534, https://doi.org/10.1016/j.csr.2009.04.002, 2009.
Palma, E. D., Matano, R. P., and Piola, A. R.: A numerical study of the Southwestern Atlantic Shelf circulation: Stratified ocean response to local and offshore forcing, J. Geophys. Res.-Oceans, 113, C11010, https://doi.org/10.1029/2007JC004720, 2008.
Pang, I. C., Hong, C. S., Chang, K. I., Lee, J. C., and Kim, J. T.: Monthly variation of water mass distribution and current in the Cheju Strait, J. Korean Soc. Oceanogr., 38, 87–100, 2003.
Park, J.-H. and Nam, S.: Causes of Interannual Variation of Summer Mean Alongshore Current Near the East Coast of Korea Derived From 16‐Year‐Long Observational Data, J. Geophys. Res.-Oceans, 123, 7781–7794, https://doi.org/10.1029/2018JC014053, 2018.
Pringle, J. M.: Enhancement of Wind-Driven Upwelling and Downwelling by Alongshore Bathymetric Variability, J. Phys. Oceanogr., 32, 3101–3112, https://doi.org/10.1175/1520-0485(2002)032<3101:EOWDUA>2.0.CO;2, 2002.
Pringle, J. M. and Dever, E. P.: Dynamics of wind-driven upwelling and relaxation between Monterey Bay and Point Arena: Local-, regional-, and gyre-scale controls, J. Geophys. Res.-Oceans, 114, C07003, https://doi.org/10.1029/2008JC005016, 2009.
Rhines, P.: Edge‐, bottom‐, and Rossby waves in a rotating stratified fluid, Geophys. Fluid Dynam., 1, 273–302, https://doi.org/10.1080/03091927009365776, 1970.
Rosenfeld, L. K., Schwing, F. B., Garfield, N., and Tracy, D. E.: Bifurcated flow from an upwelling center: a cold water source for Monterey Bay, Cont. Shelf Res., 14, 931–964, https://doi.org/10.1016/0278-4343(94)90058-2, 1994.
Saldías, G. S. and Allen, S. E.: The influence of a submarine canyon on the circulation and cross-shore exchanges around an upwelling front, J. Phys. Oceanogr., 50, 1677–1698, https://doi.org/10.1175/JPO-D-19-0130.1, 2020.
Saldías, G. S., Ramos-Musalem, K., and Allen, S. E.: Circulation and Upwelling Induced by Coastal Trapped Waves Over a Submarine Canyon in an Idealized Eastern Boundary Margin, Geophys. Res. Lett., 48, e2021GL093548, https://doi.org/10.1029/2021GL093548, 2021.
Shchepetkin, A. F. and McWilliams, J. C.: The regional oceanic modeling system (ROMS): a split-explicit, free-surface, topography-following-coordinate oceanic model, Ocean Model., 9, 347–404, https://doi.org/10.1016/j.ocemod.2004.08.002, 2005.
Su, J. and Pohlmann, T.: Wind and topography influence on an upwelling system at the eastern Hainan coast, J. Geophys. Res.-Oceans, 114, C06017, https://doi.org/10.1029/2008JC005018, 2009.
Teague, W. J., Jacobs, G. A., Ko, D. S., Tang, T. Y., Chang, K.-I., and Suk, M.-S.: Connectivity of the Taiwan, Cheju, and Korea straits, Cont. Shelf Res., 23, 63–77, https://doi.org/10.1016/S0278-4343(02)00150-4, 2003.
Trasviña, A., Barton, E. D., Brown, J., Velez, H. S., Kosro, P. M., and Smith, R. L.: Offshore wind forcing in the Gulf of Tehuantepec, Mexico: The asymmetric circulation, J. Geophys. Res.-Oceans, 100, 20649–20663, 1995.
Washburn, L. and McPhee-Shaw, E.: Coastal Transport Processes Affecting Inner-Shelf Ecosystems in the California Current System, Oceanography, 26, 34–43, 2013.
Whitney, F. A., Crawford, W. R., and Harrison, P. J.: Physical processes that enhance nutrient transport and primary productivity in the coastal and open ocean of the subarctic NE Pacific, Deep-Sea Res. Pt. II, 52, 681–706, https://doi.org/10.1016/j.dsr2.2004.12.023, 2005.
Whitney, M. M. and Allen, J. S.: Coastal wind-driven circulation in the vicinity of a bank. Part I: Modeling flow over idealized symmetric banks, J. Phys. Oceanogr., 39, 1273–1297, https://doi.org/10.1175/2008JPO3966.1, 2009a.
Whitney, M. M. and Allen, J. S.: Coastal wind-driven circulation in the vicinity of a bank. Part II: Modeling flow over the Heceta Bank complex on the Oregon coast, J. Phys. Oceanogr., 39, 1298–1316, https://doi.org/10.1175/2008JPO3967.1, 2009b.
Winant, C. D.: Coastal circulation and wind-induced currents, Annu. Rev. Fluid Mech., 12, 271–301, https://doi.org/10.1146/annurev.fl.12.010180.001415, 1980.
Zhang, W. and Lentz, S. J.: Wind-Driven Circulation in a Shelf Valley. Part I: Mechanism of the Asymmetrical Response to Along-Shelf Winds in Opposite Directions, J. Phys. Oceanogr., 47, 2927–2947, https://doi.org/10.1175/JPO-D-17-0083.1, 2017.
Zhang, W. and Lentz, S. J.: Wind-Driven Circulation in a Shelf Valley. Part II: Dynamics of the Along-Valley Velocity and Transport, J. Phys. Oceanogr., 48, 883–904, https://doi.org/10.1175/JPO-D-17-0084.1, 2018.
Zhang, W. G., Gawarkiewicz, G. G., McGillicuddy, D. J., and Wilkin, J. L.: Climatological mean circulation at the New England shelf break, J. Phys. Oceanogr., 41, 1874–1893, https://doi.org/10.1175/2011JPO4604.1, 2011.
Short summary
This study investigates ocean currents over a coastal bank along the southern coast of Korea, focusing on their asymmetric response to alongshore wind stress. Variability is larger in the western region of the bank, driven by enhanced cross-shore sea level gradients associated with vertically integrated transport over bank topography. The asymmetry remains robust despite offshore currents and changes in wind conditions.
This study investigates ocean currents over a coastal bank along the southern coast of Korea,...