01-05 December 2025
INCOIS, Hyderabad, India.
| Abstract Submission No. | ABS-02-0376 |
| Title of Abstract | Interaction between East India Coastal Current and eddies in Southwestern Bay of Bengal |
| Authors | K Jossia Joseph*, S Prasannakumar, Vaishnav Sharun K Rajan, M Arul Muthiah, R Balaji |
| Organisation | NIOT Chennai |
| Address | NIOT, Pallikaranai, Chennai Chennai, Tamil Nadu, India Pincode: 600100 E-mail: jossiaj@niot.res.in |
| Country | India |
| Presentation | Oral |
| Abstract | The ocean currents in the North Indian Ocean is driven by monsoon winds and hence exhibits seasonal reversal. Unlike the major oceanic basins, the coastal currents along the Indian coast exhibits seasonality and plays a major role in water mass exchange between the Arabian Sea and Bay of Bengal. The interaction with eddies further adds to its complexity. However, the information regarding the coastal currents are limited particularly the details off southwestern Bay of Bengal. An Argo GPS drifter that deployed along with the moored buoy off Chennai got detached during the cyclone Fengal, got trapped into the East India Coastal Current and started to move equator-ward during November 2024. While moving equatorward, the Argos GPS drifter got into a cyclonic eddy for a short period and continued its path until it joined the north equatorial current off Srilanka. The moored buoy observations exhibited the cyclonic structure in subsurface parameters and provided crucial information eddy characteristics. The satellite measurements of sea level anomaly and ocean currents further confirmed the track of cyclonic eddy which traversed a long distance form northern BoB to southwestern BoB, while carrying cooler and fresher water to open ocean and further down south. The present study provides crucial information of the East India Coastal Current during the winter season and its interaction with a cyclonic eddy. |
| Are you part of IIOE-2 endorsed project | no |
| Keywords | EICC, eddies, Bay of Bengal, Cyclone |
| For Awards | no |