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Differential Upper Ocean Response Depicted in Moored Buoy Observations during the Pre-Monsoon Cyclone Viyaru


Affiliations
1 National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
 

The pre-monsoon cyclone Viyaru in the Bay of Bengal during May 2013 traversed a long track from 5°N to 22°N over 7 days with basin-wide response, which was well captured by the time series observations of OMNI buoy network along with satellite data. The differential upper ocean characteristics and its variable response reveal that vertical mixing override horizontal advection during cyclone passage. This study provides insight into the variability in wave spectra, differential response on either side of the track and presence of cold core eddy combined with a thick barrier layer in modulating the upper ocean response.

Keywords

Bay Of Bengal, Barrier Layer, Cyclone Viyaru, Eddies, OMNI Buoys, Wave Spectra.
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  • Alam, Md. M., Hossain, Md. A. and Shafee, S., Frequency of Bay of Bengal cyclonic storms and depressions crossing different coastal zones. Int. J. Climatol., 2003, 23, 1119–1125.

  • Akter, N. and Tsuboki, K., Role of synoptic-scale forcing in cyclogenesis over the Bay of Bengal. Clim. Dyn., 2014, 43, 2651–2662.

  • Premkumar, K., Ravichandran, M., Kalsi, S., Sengupta, D. and Gadgil, S., First results from a new observational system over the Indian Seas. Curr. Sci., 2000, 78(03), 323–330.

  • Venkatesan, R. et al., In situ ocean subsurface time-series measurements from OMNI buoy network in the Bay of Bengal. Curr. Sci., 2013, 104, 1166–1177.

  • Maneesha, K., Murty, V. S. N., Ravichandran, M., Lee, T., Yu, W. and McPhaden, M. J., Upper ocean variability in the Bay of Bengal during the tropical cyclones Nargis and Laila. Prog. Oceanogr., 2012, 106, 49–61.

  • Obasi, G. O. P., WMO’s programme on tropical cyclone. Mausam, 1997, 48, 103–112.

  • McPhaden, M. J. et al., Ocean–atmosphere interactions during cyclone Nargis. EOS Trans. Am. Geophys. Union, 2009, 90, 53– 54.

  • Vissa, N. K., Satyanarayana, A. N. V. and Prasad Kumar, B., Response of upper ocean during passage of MALA cyclone utilizing ARGO data. Int. J. Appl. Earth Obs. Geoinf., 2012, 14, 149–159.

  • Gopalakrishna, V. V., Murty, V. S. N., Sarma, M. S. S. and Sastry, J. S., Thermal response of upper layers of Bay of Bengal to forcing of a severe cyclonic storm: a case study. Indian J. Geo-Mar. Sci., 1993, 22, 8–11.

  • Behera, S. K., Deo, A. A. and Salvekar, P. S., Investigation of mixed layer response to Bay of Bengal cyclone using a simple ocean model. Meteorol. Atmosph. Phys., 1998, 65, 77–91.

  • Neetu, S. et al., Influence of upper-ocean stratification on tropical cyclone-induced surface cooling in the Bay of Bengal. J. Geophys. Res. Oceans, 2012, 117(C12), C12020.

  • Sengupta, D., Goddalehundi, B. R. and Anitha, D. S., Cycloneinduced mixing does not cool SST in the post-monsoon north Bay of Bengal. Atmosph. Sci. Lett., 2008, 9, 1–6.

  • Girishkumar, M. S. et al., Observed oceanic response to tropical cyclone Jal from a moored buoy in the south-western Bay of Bengal. Ocean Dyn., 2014, 64, 325–335.

  • Joseph, K. J., Balchand, A. N., Hareeshkumar, P. V. and Rajesh, G., Inertial oscillation forced by the September 1997 cyclone in the Bay of Bengal. Curr. Sci., 2007, 92, 790–794.

  • Vissa, N. K., Satyanarayana, A. N. V. and Kumar, B. P., Response of upper ocean and impact of barrier layer on Sidr cyclone induced sea surface cooling. Ocean Sci. J., 2013, 48, 279–288.

  • Navaneeth, K. N., Martin, M. V., Joseph, K. J. and Venkatesan, R., Contrasting the upper ocean response to two intense cyclones in the Bay of Bengal. Deep Sea Res. Part Oceanogr. Res. Pap., 2019, 147, 65–78.

  • Mathew, S., Natesan, U., Latha, G., Venkatesan, R., Rao, R. and Ravichandran, M., Observed warming of sea surface temperature in response to tropical cyclone Thane in the Bay of Bengal. Curr. Sci., 2018, 114, 1407–1413.

  • Mandal, S., Sil, S., Shee, A. and Venkatesan, R., Upper ocean and subsurface variability in the Bay of Bengal during cyclone Roanu: a synergistic view using in situ and satellite observations. Pure Appl. Geophys., 2018, 175, 4605–4624.

  • Kotal, S. D., Bhattacharya, S. K., Bhowmik, S. K. R. and Kundu, P. K., Growth of cyclone Viyaru and Phailin – a comparative study. J. Earth Syst. Sci., 2014, 123, 1619–1635.

  • A preliminary report on cyclonic storm, Viyaru over Bay of Bengal (10–16 May 2013), IMD, 2013.

  • Leipper, D. F. and Volgenau, D., Hurricane heat potential of the Gulf of Mexico. J. Phys. Oceanogr., 1972, 2, 218–224.

  • Kara, A. B., Rochford, P. A. and Hurlburt, H. E., An optimal definition for ocean mixed layer depth. J. Geophys. Res. Oceans, 2000, 105, 16803–16821.

  • Bonjean, F. and Lagerloef, G. S. E., Diagnostic model and analysis of the surface currents in the tropical Pacific Ocean. J. Phys. Oceanogr., 2002, 32, 2938–2954.

  • Price, J. F., Upper ocean response to a hurricane. J. Phys. Oceanogr., 1981, 11, 153–175.


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  • Differential Upper Ocean Response Depicted in Moored Buoy Observations during the Pre-Monsoon Cyclone Viyaru

Abstract Views: 404  |  PDF Views: 127

Authors

R. Venkatesan
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
K. Jossia Joseph
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
C. Anoopa Prasad
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
M. Arul Muthiah
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
S. Ramasundaram
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
P. Murugesh
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India

Abstract


The pre-monsoon cyclone Viyaru in the Bay of Bengal during May 2013 traversed a long track from 5°N to 22°N over 7 days with basin-wide response, which was well captured by the time series observations of OMNI buoy network along with satellite data. The differential upper ocean characteristics and its variable response reveal that vertical mixing override horizontal advection during cyclone passage. This study provides insight into the variability in wave spectra, differential response on either side of the track and presence of cold core eddy combined with a thick barrier layer in modulating the upper ocean response.

Keywords


Bay Of Bengal, Barrier Layer, Cyclone Viyaru, Eddies, OMNI Buoys, Wave Spectra.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi11%2F1760-1767