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

Journal of Earth system science

D Nethery1 2¹  D Shankar1¹ 

[1] National Institute of Oceanography, Goa 403 004, India.$$

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

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown