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| Abstract Submission No. | ABS-2022-14-0403 |
| Title of Abstract | Upper Ocean Response to Tropical Cyclones in Northern Indian Ocean using in-situ and satellite observations |
| Authors | B.Kesavakumar*, M.Arul Muthiah, G.Vengatesan, K.Jossia Joseph, Biswajit Haldar, R.Venkatesan |
| Organisation | National Institute of Ocean Technology, MoES, Government of India |
| Address | Scientist-D, Ocean Observation Systems, National Institute of Ocean Technology, Chennai, Tamilnadu, India Pincode: 600100 Mobile: 9940777923 E-mail: kesavakumar.b@gmail.com |
| Country | India |
| Presentation | Oral |
| Abstract | Tropical cyclones in the Northern Indian Ocean, characterised by sustained maximum wind speeds and lower atmospheric pressure in the Arabian Sea and Bay of Bengal region are known to cause significant amount of destruction to the coastal communities and results in socio-economic impacts. The forecast of tropical cyclones are complicated in this region due to complex features such as air sea interaction, freshening of surface layers due to high amount of river discharge. The present era provides numerous observation platforms such as moored buoy systems, satellite sensors to observe the pre and post conditions due to the passage of tropical cyclones. The OMNI (Ocean Moored buoy network in the Northern Indian Ocean) buoy system are equipped with atmospheric, surface and sub-surface sensor and deployed at 12 locations in Northern Indian Ocean, generates a voluminous amount of time series data and has captured signatures of many tropical cyclones. The present work involves utilisation of in-situ data from buoy system, satellite sensors for understanding the conducive property of the ocean for cyclogenesis along with analysis sub surface data from sensors mounted till 500m of water depth from the deep ocean buoy system. The parameters such as TCHP, SST, Salinity, Barrier layer thickness (BLT), Mixed layer depth (MLD), wind speed , air pressure are derived from in-situ, satellite and models for understanding the conditions favouring the increase in intensity of cyclones are explored. |