• Vertical propagation of baroclinic Kelvin waves along the west coast of India

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      https://www.ias.ac.in/article/fulltext/jess/116/04/0331-0339

    • Keywords

       

      Arabian Sea; Indian Ocean; west India coastal current; monsoon current; equatorial oceanography; remote forcing; modelling; monsoons; oceanography.

    • Abstract

       

      A linear, continuously stratified ocean model is used to investigate vertical propagation of remotely forced, baroclinic Kelvin waves along the Indian west coast. The extent of vertical propagation over the length of the coast is found to be an increasing function of the forcing frequency. Simulations show that, over the length of the Indian west coast, vertical propagation is limited at annual and semi-annual periods, but significant at periods shorter than about 120 days. This has two major consequences. First, the depth of subsurface currents associated with these frequencies varies substantially along the coast. Second, baroclinic Kelvin waves generated in the Bay of Bengal at periods shorter than about 120 days have negligible influence on surface currents along the north Indian west coast.

    • Author Affiliations

       

      D Nethery1 2 D Shankar1

      1. National Institute of Oceanography, Goa 403 004, India.
      2. Ecole Normale Supérieure, Paris, France.
    • Dates

       
  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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