Vineet Kumar Singh

Affiliation: Senior Research Fellow, Centre for Climate Change Research, IITM

In his Ph.D. research, Vineet explored the various ocean-cyclone-atmosphere interactions and the large-scale factors governing the track of cyclones in the north Indian Ocean.

His research shows the role of atmospheric Rossby wave propagation in modulating the tracks of cyclones. His work also investigates the mechanisms involved in cyclone-induced atmospheric heating during pre- and post-monsoon cyclone seasons and how these processes will change in a global warming scenario.

Singh, V. K., Roxy, M. K., and Deshpande, M. S., 2022, Role of subtropical Rossby waves in governing the track of cyclones in the Bay of Bengal, Q. J. R. Meteorol. Soc., doi: 10.1002/qj.4387.

Vineet Kumar Singh and M. K. Roxy, 2022, A review of ocean-atmosphere interactions during tropical cyclones in the north Indian Ocean, Earth-Science Reviews, 226, 103967, doi: 10.1016/j.earscirev.2022.103967 [pdf].

Deshpande, M., Vineet K. Singh, Ganadhi M. Kranthi, M. K. Roxy, R. Emmanuel, & U. Kumar, 2021, Changing status of tropical cyclones over the north Indian Ocean, Climate Dynamics, 1-23 [pdf].

Dhavale, S., Milind Mujumdar, M.K. Roxy, Vineet Kumar Singh, 2021, Tropical Cyclones over the Arabian Sea during the monsoon onset phase, International Journal of Climatology, doi: 10.1002/joc.7403 [link].

Vineet Kumar Singh, M. K. Roxy, and Medha Deshpande, 2021, Role of warm ocean conditions and the MJO in the genesis and intensification of extremely severe cyclone Fani. Scientific Reports, 11, 3607, doi: 10.1038/s41598-021-82680-9 [pdf].

Vineet Kumar Singh, M.K. Roxy and Medha Deshpande, 2020: The unusual long track and rapid intensification of very severe cyclone Ockhi. Current Science, 119, 5, 771-779 [pdf].

AWSAR Award, 2019

Vineet Kumar Singh won the Augmenting writing skills for Articulating Research (AWSAR) award by the Department of Science and Technology, Govt. of India, for best popular science story under the Ph.D. category for the year 2019.

TROPMET Best Presentation Award, 2018

Vineet Kumar Singh won the Best Presentation Award for the research work “The unusual long track and sudden intensification of very severe cyclone Ockhi” at TROPMET 2018, Varanasi, India October 2018.

IMS Best Poster Award, 2018

Vineet Kumar Singh won the Best Poster Award for the research work “Cyclone Ockhi – A study on the unusual track and sudden intensification” at IMS- Monsoon Workshop, Pune, March 2018.

The impacts of El Niño Southern Oscillation (ENSO) on tropical cyclone activity (frequency) in Arabian Sea during the month of May are studied for the period 1979-2014. The study shows a total of 7 cyclones in Arabian Sea during this period. Earlier studies have shown that cyclone frequencies vary during an El Niño and La Niña event over north Indian Ocean.

Our present study have shown that out of the 7 cyclones 5 have formed when there was La Niña like conditions which shows that La Niña like conditions enhances the frequency of cyclones in Arabian Sea during May. This is mainly because of enhanced westerly flow in south Arabian Sea and anomalous easterly flow in north Arabian Sea which provides favorable conditions for the formation of a cyclonic circulation. During the first epoch of our study period (1979-1996) there was more El Niño like conditions with positive SST anomalies in Niño 3.4 region and only 1 cyclone has formed during this period whereas during the second epoch (1997-2014) there was La Niña like conditions with negative SST anomalies in Nino 3.4 region for major duration of the period and 6 cyclones have formed during the second epoch. The trend analysis shows a decreasing trend in Niño 3.4 region SST during May and trends in ocean and atmospheric circulation pattern also resembles towards La Niña like conditions favoring more cyclones during second epoch of the study period. Trends in relative vorticity, wind shear shows more favorable condition for cyclone to form or sustain in central and west Arabian Sea.