Reaserch Scholar

Department Of Physical Oceanography, Cochin University Of Science And Technology  - Abhishek V. A.
Abhishek V. A.
Reg No. 6537

 

About

Email  |  abhishekva07@gmail.com

Phone | 9744218108

 

PhD Details

Joining Date | 14.09.2021

Supervising guide | Dr. V. Vijith

Field of study | Oceanography

Title |  Assessment of north Indian Ocean circulation using satellite altimetry and model simulation.

 

Abstract

The Asian landmass bounds the Indian Ocean in the north, and it causes an annual cycle, the monsoonal oscillation. The monsoon causes a reversal of wind and oceanic circulations (Shankar et al., 2002). Major currents that show the reversal in direction include the Somali current, southwest and northeast monsoon currents, west India coastal current, and east India coastal current (Rahaman et al., 2020; Schott et al., 2009). The oceanographic fields (salinity, temperature, sea surface height, chlorophyll, etc.) show the annual cycle.

Enhancing our understanding of the north Indian Ocean circulation is crucial because of several reasons listed below. Currents can transport mass and heat between the different basins of the Indian Ocean and influence both regional and global climate. Upwelling controls the ocean’s fisheries output; major upwelling regions in the Indian Ocean are the coast of Somalia and Oman, Sumatra, and east and west of the tip of India. Upwelling regions are marked by low Sea Surface Height Anomaly (SSHA) and also influence regional climate. Ocean circulation has a wider influence on climate and a strong link with evaporation, precipitation, and several basin-wide phenomena like Indian Ocean Dipole, El Niño Southern Oscillation, etc.
 
We propose to use satellite altimetry observations, data assimilation, and model simulation to explain the circulation of the Indian Ocean and its consequences.