01-05 December 2025
INCOIS, Hyderabad, India.
| Abstract Submission No. | ABS-05-0273 |
| Title of Abstract | Air-Sea interactions linked to Tropical Cyclones in the Bay of Bengal with special emphasis on oceanic meso-scale Eddies. |
| Authors | Gopi Krishna Podapati*, Pushpalatha Thadivalasa, Anuj Gupta, Debasis Kundu, Karan Kumar Yerrawar, Sreenivas Pentakota |
| Organisation | CEOAS, University of Hyderabad |
| Address | LIG-743 Ramachandrapuram, Telangana, India Pincode: 502032 E-mail: gopikrishnapodapati123@gmail.com |
| Country | India |
| Presentation | Oral |
| Abstract | The Bay of Bengal (BoB) is an active region for the formation of the Tropical Cyclones (TCs) and accounts for about 6% of the global annual total number of tropical storms. In this study, we have conducted an Ocean Mixed Layer Heat budget analysis for distinct TCs over Bay of Bengal. Further we have examined the coherence between distinct ocean mixed layer budget terms and Genesis Potential Parameter (GPP) especially over warm and cold core eddies. Through this analysis, we found that the net heat flux and entrainment terms have high correlations with GPP, with correlation coefficient value of magnitude 0.42 and 0.68 respectively and among all the parameters reported, the entrainment has highest correlation of magnitude 0.68 with GPP. It is interesting to mention that unlike the warm-core eddies the prior response (5 days before the passage of cyclone) between mixed layer terms and GPP is not observed for the case of cold-core eddies. Also, the magnitude of correlation between distinct terms of mixed layer heat budget analysis and GPP is relatively less for cold-core eddies, compared to the warm-core eddies. A notable feature for warm-core eddies is that the net latent heat flux dominates in influencing GPP among the terms that determines net surface heat flux, however, such dominance of net heat flux is not observed for cold core eddies, which infers that the cold core eddy regions are relatively less influential in determining/impacting cyclone life cycle, compared to the warm core eddy regions. As the latent heat flux is the major pathway between the energy exchanges from ocean to atmosphere, during active cyclone period. Further we have reported the air-sea interactions w.r.t. Viyaru cyclone as case-study. The present study could be beneficial in improving the TC models for better prediction. |
| Are you part of IIOE-2 endorsed project | no |
| Keywords | Tropical Cyclones, Bay of Bengal, Mixed layer heat budget, Cyclogenesis, Meso-scale Eddies, Air-Sea interaction |
| For Awards | yes |
| Date Of Birth | 23-08-1990 |
| ECSN Registration Number | IIOE2-ECSN-0162 |