Journal of Oceanology and Limnology

, Volume 36, Issue 3, pp 630–640 | Cite as

Cross-shelf transport induced by coastal trapped waves along the coast of East China Sea

  • Lin Jiang (蒋琳)
  • Changming Dong (董昌明)Email author
  • Liping Yin (尹丽萍)


Cross-shelf transport is important due to its role in the transport of nutrients, larvae, sediments, and pollutants. The role of coastal trapped waves (CTWs) and their contribution to the cross-shelf transport is presently unknown. The impact of wind-driven CTWs on the structure of the cross-shelf currents and transport is investigated in the East China Sea (ECS) starting from theory. The cross-shelf currents are divided into four terms: the geostrophic balance (GB) term, the second-order wave (SOW) term, the bottom friction (BF) term and Ekman (EK) term, as well as three modes: the Kelvin wave (KW) mode, the first shelf wave (SW1) mode and the second shelf wave (SW2) mode. Comparison among these decompositions shows that (1) for the four terms, the effect of the GB and EK terms is continual, while that of the BF term is confined to 60–240 km offshore, and the contribution of the SOW term can be ignored; (2) for the three modes, the KW and SW1 modes are dominant in cross-shelf transport. The results show that the total cross-shelf transport travels onshore under idealized wind stress on the order of 10-1, and it increases along the cross-shelf direction and peaks about -0.73 Sv at the continental shelf margin. With the increase of linear bottom friction coefficient, the cross-shelf transport declines with distance with the slope becoming more uniform.


cross-shelf transport coastal trapped waves East China Sea (ECS) 


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The authors would like to thank Prof. Liang, Prof. Weber, Prof. Wang and Kenny for their kindly help in this work.


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Copyright information

© Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Lin Jiang (蒋琳)
    • 1
    • 2
  • Changming Dong (董昌明)
    • 1
    • 2
    • 3
    Email author
  • Liping Yin (尹丽萍)
    • 4
    • 5
  1. 1.School of Marine SciencesNanjing University of Information Science and TechnologyNanjingChina
  2. 2.Oceanic Modeling and Observation LaboratoryNanjing University of Information Science and TechnologyNanjingChina
  3. 3.Department of Atmospheric and Oceanic SciencesUniversity of CaliforniaLos AngelesUSA
  4. 4.First Institute of OceanographyState Oceanic AdministrationQingdaoChina
  5. 5.Laboratory for Regional Oceanography and Numerical ModelingQingdao National Laboratory for Marine Science and TechnologyQingdaoChina

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