Special Session     Thu-31 Jul     AM1   08:30 – 10:00     MR2

SS03: Joint effort for implementing UN Ocean Decade endorsed MoNITOR project to achieve an increased oceanic resilience by mitigating natural incidences


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Invited Talk
Complexity of biogeochemical cycle in Bay of Bengal
Sourav SIL, Indian Institute of Technology Bhubaneswar, India
souravsil@iitbbs.ac.in

Biography

Dr. Sourav Sil is an Associate Professor at the School of Earth, Ocean and Climate Sciences, Indian Institute of Technology Bhubaneswar. His research is in the field of physical oceanography, focusing on numerical modeling of ocean circulation, variability of coastal currents, and subsurface processes in the Bay of Bengal. He has investigated the role of mesoscale eddies, wind forcing, and air-sea interaction in shaping upper-ocean thermal structure and current systems. His studies contribute to regional understanding of heat content evolution and salinity dynamics, particularly in the northern Indian Ocean. Dr. Sil also works on marine heatwave characterization and coupled model applications relevant to monsoon variability. He has participated in collaborative projects related to Indian Ocean observation and modeling, and supervises graduate research in ocean circulation, modeling, and data assimilation.


Complexity of biogeochemical cycle in Bay of Bengal

The circulation in the northern Indian Ocean is very complex due to low-salinity-induced stratification, seasonally reversing winds, highly dynamic boundary currents, mesoscale eddies, and seasonal cyclones. In addition, ocean warming has increased the frequency of marine heatwaves, affecting the marine ecosystem. This presentation will highlight the eco-zone classification using simple machine learning method. The use of satellite and BGC-Argo observations, along with models for process-specific studies, reveals the variability of chlorophyll. However, there is a pressing need for more high-resolution biological observations to support the blue economy and the development of a sustainable marine ecosystem.





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