Topic of interest.

• Climate shift and Interannual -- decadal variation of Monsoon Low pressure systems.

• Tracking of weaker synoptic scale systems to create ensembles of global datasets.

• Improving the skill of  the genesis, track, and intensity of Low pressure systems forecast.

• Teleconnection between synoptic scale systems and weather systems.

• Seasonal extremes of Indian summer monsoon and its link to Indo-Pacific climate (ENSO, PDO, IOD, EQUINOO).

• Dynamical downscaled climate simulation to project better future projection.

Journal Articles

1. Vishnu, S., Boos, W. R. & Collins, W. D. (2023). Historical and future trends in South Asian monsoon low pressure systems in a high-resolution model ensemble. npj Climate and Atmospheric Science, 6(1), 182.

2. Vishnu, S., Risser, M. D., O’Brien, T. A., Ullrich, P. A. & Boos, W. R. (2023). Observed increase in the peak rain rates of monsoon depressions. npj Climate and Atmospheric Science, 6(1), 111.

3. Vishnu, S., Chakraborty, A. & Srinivasan, J. (2022). Why the Droughts of the Indian Summer Monsoon are more Severe than the Floods. Climate Dynamics,.DOI: https://doi.org/10.1007/s00382-021-06111-1

4. Vishnu, S., Boos, W., Ullrich, P. & O’Brien, T. (2020). Assessing historical variability of South Asian monsoon lows and depressions with an optimized tracking algorithm. Journal of Geophysical Research: Atmosphere,DOI:10.1029/2020JD032977.

5. Vishnu, S., Sanjay, J. & Krishnan, R. (2019). Assessment of climatological tropical cyclone activity over the north Indian Ocean in the CORDEX-South Asia regional climate models. Climate Dynamics, 1–18.

6. Vishnu, S., Francis, P. A., Ramakrishna, S. S. V. S. Shenoi, S. S. C. (2018). On the relationship between the Indian Summer monsoon rainfall and the EQUINOO in the CFSv2. Climate Dynamics, DOI:10.1007/s00382-018-4190-7.

7. Vishnu, S., Francis, P. A., Shenoi, S. S. C., Ramakrishna, S. S. V. S. (2018). On the relationship between the Pacific Decadal Oscillation and the Monsoon Depressions over the Bay of Bengal.  Atmospheric Science Letters. DOI: 10.1002/asl.825.

8. Vishnu, S., Francis, P. A., Shenoi, S. S. C., Ramakrishna, S. S. V. S. (2016). On the decreasing trend of the number of monsoon depressions in the Bay of Bengal. Environmental Research Letters, 11(1), 014011.

9. Vishnu, S., & Francis, P. A. (2014). Evaluation of high-resolution WRF model simulations of surface wind over the west coast of India. Atmospheric and Oceanic Science Letters,7(5), 458-463.

10. Leung, L. R., Boos, W. R., Catto, J. L., ....., Vishnu, S. et al. (2022). Exploratory precipitation metrics: Spatiotemporal characteristics, process-oriented, and phenomena-based. Journal of Climate, 1–55.

11. Harikumar, R., Sirisha, P., Modi, A., Girishkumar, M., Vishnu, S., Srinivas, K., ... Nair, B. et al. (2022). Ocean state forecasting during vscs ockhi and a note on what we learned from its characteristics: A forecasting perspective. Journal of Earth System Science, 131(2), 1–20.

12. Remya, P G., Vishnu S., Praveen Kumar B., Balakrishnan Nair T M., Rohith B. (2016). Tele-connection between the North Indian Ocean high swell events and Meteorological Conditions over the Southern Indian Ocean, Journal of geophysical research: Ocean. DOI: 10.1002/2016JC011723

13. Girishkumar, M. S., Suprit, K., Vishnu, S., Prakash, V. T., Ravichandran, M. (2015). The role of ENSO and MJO on rapid intensification of tropical cyclones in the Bay of Bengal during October–December. Theoretical and Applied Climatology,120(3-4), 797-810.

14. Girishkumar, M., Thangaprakash,.....,  Vishnu S., .... Abhilash, K. (2019). Quantifying tropical cyclone’s effect on the biogeochemical processes using profiling float observations in the Bay of Bengal. Journal of Geophysical Research: Oceans, 124(3), 1945–1963.

See my Google Scholar  and  ResearchGate pages for more details

Books and Chapters

1. Patwardhan, S., Sooraj, K., Varikoden, H., Vishnu, S., Koteswararao, K., Ramarao, M. & Pattanaik, D. (2020). Synoptic scale systems. In Assessment of climate change over the indian region (pp. 143–154). Springer.

Selected Talks

1. Vishnu, S., Boos, W., Ullrich, P. & O’Brien, T. (2019). Automated identification of South Asian monsoon low pressure systems: Historical variations across reanalysis products. In American Geophysical Union, Fall Meeting 2019, (A23H–3009). San Francisco, USA.

2. Vishnu, S., Francis, P., Ramakrishna, S. & Shenoi, S. (2016). On the relationship between the Indian Summer monsoon rainfall and the EQUINOO in the CFSV2.0. In TWAS-ROCASA Conference of Young Scientists in central south Asian region at IISc, Bangalore, India.

3. Vishnu, S., Francis, P., Shenoi, S. & Ramakrishna, S. (2015). Decreasing trend in the frequency of monsoon depressions over the Bay of Bengal. In National Climate Science Conference at IISc, Bangalore, India.

4. Vishnu, S. & Francis, P. (2013). Validation of the Hindcasts of surface wind over west coast of India and Eastern Arabian Sea using high resolution WRF model. In The 12th CAS-TWAS-WMO Forum on Climate Science (CTWF), the international workshop on “operational oceanography for developing countries”, Beijing, China.

Journal Referee

International Journal of Climatology - Wiley Online Library

Journal of Geophysical Research: Atmospheres -Wiley Online Library

Journal of Earth System Science - Springer