Article published

1. Vishnu, S. (2026). Contribution of low pressure systems rainfall to interannual variability of the Indian summer monsoon. Journal of Climate, 39(11), 2891–2905. -Impact factor: 4.31

2. Joseph, L., Skliris, N., Vishnu, S., Dey, D., Marsh, R. et al. (2026). Drivers and variability of marine heatwaves in the north indian ocean and their impacts on south asian monsoon rainfall. Frontiers in Climate, 8, 1801667. -Impact factor: 3.9

3. Chakra, S., Vishnu, S., Oza, H., Ganguly, A., Pandey, A., Padhya, V. & Deshpande, R. (2025). Insights into indian summer monsoon rainfall variability: Early twentieth century warming vs. mid-twentieth century cooling. Climate Dynamics, 63(10), 1–16. -Impact factor: 4.0

4. Suhas, D., Vishnu, S., Goyal, S., Sarkar, S., Mukhopadhyay, P., Ullrich, P. A. & Boos, W. R. (2024). Automated operational forecasting of monsoon low pressure systems. Bulletin of the American Meteorological Society, 105(12), E2444–E2460.Impact factor: 6.9

5. 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. -Impact factor: 9.0
6. 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. -Impact factor: 9.0
7. 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. -Impact factor: 1.9
8. Vishnu, S., Chakraborty, A. & Srinivasan, J. (2022). Why the Droughts of the Indian Summer Monsoon are more Severe than the Floods. Climate Dynamics. doi:10.1007/s00382-021-06111-1. -Impact factor: 4.6
9. 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. -Impact factor: 4.9
10. 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: Atmospheres, 125(15), e2020JD032977. -Impact factor: 4.4
11. 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, 53(7), 5101–5118. Impact factor: 4.6
12.  Vishnu, S., Francis, P. A., Ramakrishna, S. S. V. S. & Shenoi, S. S. C. (2019). On the relationship between the Indian summer monsoon rainfall and the EQUINOO in the CFSv2. Climate Dynamics, 52(1-2), 1263–1281. -Impact factor: 4.6
13. Girishkumar, M. S., Thangaprakash, V. P., Udaya Bhaskar, T., ......., Vishnu, S. et al. (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. -Impact factor: 3.6
14. Vishnu, S., Francis, P. A., Shenoi, S. S. C. & Ramakrishna, S. S. V. S. (2018). On the relationship between the Pacific Decadal Oscillation and monsoon depressions over the Bay of Bengal. Atmospheric Science Letters, 19(7), e825. -Impact factor: 3.0
15. Vishnu, S., Francis, P., 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. -Impact factor: 6.7
16. Remya, P., Vishnu, S., Praveen Kumar, B., Balakrishnan Nair, T. & Rohith, B. (2016). Teleconnection between the North Indian Ocean high swell events and meteorological conditions over the Southern Indian Ocean. Journal of Geophysical Research: Oceans, 121(10), 7476–7494. -Impact factor: 3.6
17.  Girishkumar, M., 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. -Impact factor: 3.6
18. 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. -Impact factor: 2.3

Data Published

1. Vishnu, S., Boos, W. R., Ullrich, P. A. & O’Brien, T. A. (2020). Global track dataset of monsoon low pressure systems. Zenodo https://doi.org/10.5281/zenodo.3890646.  Downloads : >5000

Books and Chapters

1. Patwardhan, S., Sooraj, K. P., Varikoden, H., Vishnu, S., Koteswararao, K., Ramarao, M. V. S. & Pattanaik, D. R. (2020). Synoptic Scale Systems. In Assessment of Climate Change over the Indian Region (pp. 143–154). Springer.

Selected Presentations

1. Vishnu, S., Menkes, C., Peltier, A., Corre, L., Drouin, A. & ..... (2024). Toward dynamical downscaling of future climates at island scales in Tropical Pacific. In AMOS 2024 Conference, 2024 (12B–108). Canberra, Australia.
2. Vishnu, S., Corre, L., Drouin, A., ..... & Menkes, C. (2023). CLIPSSA: High-Resolution Island Scale Climate Simulation for Improved Adaptation Strategies in the Southwest Pacific Region. In International Conference on Regional Climate, ICRC-CORDEX , 2023 (D3-T–05). Trieste, Italy.
3. William R Boos, Vishnu Sasidharan Nair, William Drew Collins, Mark Daniel Risser, Travis Allen O'Brien, Paul Aaron Ullrich (2023).  Past and future trends in South Asian monsoon depressions and their extreme rainfall (Invited). In American Geophysical Union, Fall Meeting 2023, (A14J–01). San Francisco, USA.
4. Vishnu, S., Risser, M., O’Brien, T., Ullrich, P., Collins, W. & Boos, W. (2023). Rise in Rainfall of South Asian Monsoon Low-Pressure Systems. In EGU General Assembly, 2023 (p. 16193). Vienna, Austria.
5. William R Boos, DL Suhas, S Vishnu, Michael Diaz (2023). A Review of Recent Progress In Understanding Mechanisms And Trends Of Monsoon Depressions (Invited). In 103rd AMS Annual Meeting 2023
6. Vishnu,S., Boos, W. (2022) Have the Frequency and Intensity of Monsoon Low-pressure Systems been Changing? (Invited). In School of Earth & Planetary Sciences (SEPS), National Institute of Science Education and Research (NISER), India.
7. 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.
8. Paul Aaron Ullrich, Colin M Zarzycki, Marielle Pinheiro, Elizabeth Elliott McClenny, Kevin A Reed, Vishnu Sasidharan Nair (2019)  Feature Tracking in TempestExtremes: Automated Detection and Characterization of Extreme Weather. In American Geophysical Union, Fall Meeting 2019, (A33K-2999). San Francisco, USA.
9. Vishnu, S., Francis, P. A., Ramakrishna, S. S. V. S. & Shenoi, S. S. C. (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.
10. Vishnu, S., Francis, P. A., Shenoi, S. S. C. & Ramakrishna, S. S. V. S. (2015). Decreasing trend in the frequency of monsoon depressions over the Bay of Bengal. In National Climate Science Conference at IISc, Bangalore, India.
11. Vishnu, S. & Francis, P. A. (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.