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

Abstract Views: 390  |  PDF Views: 120

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