My research interest and research work involve the following:
Modeling of extreme rainfall
Modeling of Fog and Aviation Meteorology
Weather and Health issues
Surface Boundary Layer Dynamics and Thermodynamics of the Fog formation and mitigation
Dynamics of cyclones and typhoons over the Asian region
Extreme rainfall, Droughts, Fog, Thunderstorms Landsides as Natural Hazards
Prediction of South Asian Monsoon
Monsoon and Arctic Ice melt
Prediction of weather using various versions of WRF
Actively working on
Overlapping and shifting of the seasons
Prioritizing the cash crops over regular ones
Assimilation of Extreme events
Fires of Indo Gangetic Plains
Cyclones and Post Monsoon
Genesis of Arabian Sea cyclone
Climate datasets vs Climate deniers
James Webb over Hubble telescope
Stretching and twisting body: Knee and Back pain
Mechanism of Fog over Indo-Gangetic Plains
1.After 1997, the cloud cover decreased, resulting in increased OLR.
2.Due to enhanced cooling, the stable boundary layer further intensified, resulting in decreased PBL height.
3.The size of the largest eddy in the boundary layer decreased; thus, turbulent mixing is reduced.
4.The boundary layer increased in density, and trapped the pollutants and water vapor in a lesser volume of air; thus increasing their concentration.
5.Thus, saturation is more favored after 1996-97.
Peer Reviewed Publications:
1. Kumar, V., R. Patil, R.L. Bhawar, P.R.C. Rahul and S. Yelisetti, 2022: Increasing Wind Speeds Fuel the Wider Spreading of Pollution Caused by Fires over the IGP Region during the Indian Post-Monsoon Season. Atmosphere, 13, 1525, https://doi.org/10.3390/.
2. Kulkarni, J. R., N. R. Deshpande, S. B. Morwal, D. R., Kothawale, and V. Kumar, 2022: Heavy rainfall on the Immediate lee side of the Western Ghats. Int. J. Clim. 42 (15), 7483-7496.
3. Kulkarni, J. R., et al., 2022: “Satarak”, Land slide prediction system over Western Ghats of India. Land, 11 (5), 1-23.
4. Muktavat, K., Agarwal, P., Sharma, R., and V. Kumar, 2022: Efficacy of Statistical Rank Correlation Tests in Depicting Impact of Climatic Factors over the Spread of COVID-19. IPEC J. of Sci. & Tech., 01, 40-46.
5. Gunturu, U.B., V. Kumar, 2021: Weakened Baroclinic Activity Causes an Abrupt Rise in Fog in the Indo-Gangetic Plain. Geophy. Res. Lett., 1-10, https://doi.org/10.1029/2021GL096114.
6. Muktavat, K., V. Kumar, 2021: Testing Link of Climatic Factors and Air Pollution with COVID-19 amid the Second Wave in India. J. of Environmental Protection, 12, 1069-1085.
7. Bhawar, R., S. Fadnavis, V. Kumar, P.R.C. Rahul, T. Sinha, and S. Lolli, 2021: Radiative impacts of aerosols during COVID-19 lockdown period over the Indian region. Front. Env. Sci., 9, 1-11, https://doi: 10.3389/fenvs.2021.746090
8. Pradhan, P. K., V. Kumar, S.K. Khadagrai, T. Sinha, V. BhaskarRao, V. Kumari, S. Pattanaik, 2021: Demonstration of the Temporal Evolution of Tropical Cyclone “Phailin” Using Gray-Zone Simulations and Decadal Variability of Cyclones over the Bay of Bengal in a Warming Climate. Ocean, 2, 648-674, https://doi.org/10.3390/oceans2030037
9. Kumar, V., D. K. Sahu, A. Simon, A. Thomas, T. Sinha, J. Bielli, and T. N. Krishnamurti, 2021: Buoyancy Streams and Cloud Flare-Ups Along Rainbands in the Eye Wall of Rapidly Intensifying Storms. Pure Appl. Geophys., 178, 223–243. https://doi.org/10.1007/s00024-020-02628-4
10. Kumar, V., Sunilkumar, K., Sinha, T., 2021: Proportional Trends of Continuous Rainfall in Indian Summer Monsoon. Remote Sens. 13, 398. https://doi: 10.3390/rs13030398
11. Bhardwaj, A., V. Kumar, V., A. Sharma, T. Sinha, S. P. Singh, 2021: Application of Multimodel Superensemble Technique on the TIGGE Suite of Operational Models. Geomatics, 1, 81-91. https://doi: 10.3390/geomatics1010007
12. Kumar, V.; P. K. Pradhan, T. Sinha, S.V.B. Rao, H.-P. Chang, 2020: Interaction of a Low-Pressure System, an Offshore Trough, and Mid-Tropospheric Dry Air Intrusion: The Kerala Flood of August 2018. Atmosphere, 11, 740. https://doi: 10.3390/atmos11070740
13. Kumar, V., 2020: Development of Precise Indices for Assessing the Potential Impacts of Climate Change. Atmosphere, 11, 1231, https://doi: 10.3390/atmos11111231.
14. Sahu, D., T. N. Krishnamurti, V Kumar, 2020: Elucidating intra-seasonal characteristics of Indian summer monsoon. Part-I: Viewed from remote sensing observations, reanalysis and model datasets. J. Earth Syst. Sci., 129 (29), https://doi.org/10.1007/s12040-019-1276-5.
15. Pradhan, P. K., M. L. R. Liberato, V. Kumar, J. Ferreira, S. V. B. Rao, and T. Sinha, 2019: Simulation of Mid-Latitude Winter Storms over North Atlantic Ocean: Impact of Boundary Layer Parameterization Schemes. Climate Dynamics, 53 (11), 6785-6814, https://doi.org/10.1007/s00382-019-04962-3.
16. Deshpande, N. R., D. R. Kothawale, V. Kumar, and J. R. Kulkarni, 2018: Statistical Characteristics of Cloud burst and Mini-cloudburst Events during Monsoon Season in India. Int. J. Clim., 1-17, https://doi.org/10.1002/joc.5560
17. Dubey, S., T. N. Krishnamurti, V. Kumar, 2018: On scale interactions between the MJO and synoptic scale. Quart. J. Roy. Meteor. Soc., 144, 2727-2747.
18. Kumar, V., and T. Ghosh, 2018: Performance of some multimodel schemes for seasonal precipitation over Indian region. Advances in Meteorology, https://doi.org/10.1155/2018/5874270.
19. Kumar. V., S. Jana, A. Bhardwaj, R. Deepa, S. K. Sahu, P. K. Pradhan, and S. A. Sirdas, 2018: Greenhouse gas emission, rainfall and crop production over north-western India. The Open Ecology Journal. 11, 47-61. https://doi: 10.2174/1874213001811010047
20. Krishnamurti, T. N., D. Sahu, V. Kumar, A. Ruby Krishnamurti, T. Ghosh, A. Simon, A. Thomas and S. Dubey, 2017: Extreme Orographic Rains from Streams of Moist Marine Layer Wind Systems with a Possible Geoengineering Application. International Journal of Hydrology, 1(7),1-15.
21. Kumar, V., and J. R. Kulkarni, 2017: Observational Studies of Monsoonal Droughts and Large-Scale Traits. J Atmos Earth Sci, 1, 1-7.
22. Krishnamurti, T. N., S. Dubey, V. Kumar, D. Linoj, and A. Bhardwaj, 2017: Scale interaction and the flood event over south India. Quarterly Journal of Royal Met Society, 143, 1442–1458, DOI:10.1002/qj.3016.
23. Sirdas, S. A., E. Tuncay Özdemir, İsmail Sezen1, Bahtiyar Efe and V. Kumar, 2017, Devastating extreme Mediterranean cyclone's impacts in Turkey. Natural Hazards, 87 (1), 255–286.
24. Krishnamurti, T. N., S. Jana, R. Krishnamurti, V. Kumar, R. Deepa, F. Papa, M. A. Bourassa, and M. M. Ali, 2017: Monsoonal intraseasonal oscillations in the ocean heat content over the surface layers of the Bay of Bengal. J. of Marine Sys., 167, 19–32.
25. Kumar, V., 2016: Review of Droughts over Indian Region. Int J Marine Sci Ocean Technol. 3(4), 40-44.
26. Kumar, V., and R. Krishnan, 2016: Simulation of Indian Monsoon Droughts from State-of-Art Climate Models. Jacobs J. of Earth Sci., 1(1): 1-16.
27. Sirdas, S. A., A. B. Diriker and V. Kumar, 2016: Heavy Precipitation Events in Marmara Region and connections with the North Atlantic and Arctic Oscillation Patterns. Environment and Natural Resources Research; 6 (4),1-17.
28. Krishnamurti, T. N. and V. Kumar, 2016: Prediction of a thermodynamic wave train from the monsoon to the Arctic following an extreme rain event: Climate Dynamics, DOI 10.1007/s00382-016-3207-3.
29. Krishnamurti,T. N., V. Kumar, A. Simon, A. Thomas, A. Bhardwaj and Sweta Das, 2016, March of buoyancy elements during extreme rainfall over India: Climate Dynamics, DOI 10.1007/s00382-016-3183-7.
30. Krishnamurti, T. N., V. Kumar, A. Simon, A. Bhardwaj, T. Ghosh, and R. Ross, 2016: A review of multimodel superensemble forecasting for weather, seasonal climate, and hurricanes. Rev. Geophys., 54, 336-377.doi:10.1002/2015RG000513.
31. Kipkogei, O., A. Bhardwaj, V. Kumar, L. A. Ogallo, F. J. Opijah, J. N. Mutemi and T. N. Krishnamurti, 2016: Improving Multimodel Medium Range Forecasts over the Greater Horn of Africa Using the FSU Superensemble. Meteorology and Atmospheric Physics. http://link.springer.com/article/10.1007/s00703-015-0430-0.
32. Krishnamurti, T. N., R. Krishnamurti, A. Simon, A. Thomas and V. Kumar, 2016, A mechanism of the MJO invoking scale interactions: a special Issue of Yanai AMS Monograph, DOI: 10.1175/AMSMONOGRAPHS-D-15-0009.1.
33. Kumar, V., and Krishnamurti, 2015: Mesoscale modeling for the rapid movement of monsoonal isochrones. Atmospheric Science Letters, 17, 78-86.
34. Krishnamurti, T. N., R. Krishnamurti, S. Das, V. Kumar, A. Jayakumar, and A. Simon, 2015: A Pathway Connecting the Monsoonal Heating to the Rapid Arctic Ice Melt. J. Atmos. Sci., 72, 5–34.
35. Yatagai, A., T. N. Krishnamurti, V. Kumar, A. Mishra, and A. Simon, 2014: Use of APHRODITE rain-gauge based precipitation and TRMM3B43 products for improving Asian monsoon seasonal precipitation forecasts by superensemble method. J. Clim., 27, 1062–1069.
36. Johnson, B., V. Kumar, and T. N. Krishnamurti, 2014, Prediction of rainfall using downscaling and multimodel superensemble over Tropical South America. Clim. Dyn., 43, 7-8, 1731-1752.
37. Jayakumar, V. Kumar, and T. N. Krishnamurti, 2013: Lead time for medium range prediction of the dry spell of monsoon using multi-models. J. Earth Syst. Sci., 122, No. 4, 991–1004.
38. T. N. Krishnamurti, A. Martin, R. Krishnamurti, A. Simon, A. Thomas and V. Kumar, 2013: Impacts of enhanced CCN on the organization of convection and recent reduced counts of Monsoon Depressions. Clim. Dyn., 41, 117–134.
39. T. N. Krishnamurti, and V. Kumar, 2012: Improved seasonal precipitation forecasts for the Asian Monsoon using a large suite of Atmosphere Ocean coupled models: Anomaly. J. Clim., 25, 65-88.
40. Kumar,V., and T. N. Krishnamurti, 2012: Improved seasonal precipitation forecasts for the Asian Monsoon using a large suite of Atmosphere Ocean coupled models: Climatology. J. Clim., 25, 39-64.
41. Krishnan, R., S. Sundaram, P. Swapna, V. Kumar, D. C. Ayantika and M. Mujumdar, 2011: The crucial role of ocean-atmosphere coupling on the Indian monsoon anomalous response during dipole events. Clim. Dyn., 37, 1-17.
42. Krishnan, R., D.C. Ayantika, V. Kumar, and S. Pokhrel, 2011: The long-lived monsoon depressions of 2006 and their linkage with the Indian Ocean Dipole. Int. J. of Clim., 30, 1334-1352.
43. Krishnamurti, T. N., A. Thomas, A. Simon, V. Kumar, 2010: Desert Air Incursions, an Overlooked Aspect, for the Dry Spells of the Indian Summer Monsoon. J. Atmos. Sci., 67, 3423–3441.
44. Krishnamurti T. N., and V. Kumar, 2010: Downscaled multi-model superensemble and probabilistic forecasts of seasonal rains over the Asian monsoon belt. SPIE Asia-Pacific Remote Sensing, 78560G-78560G-11.
45. Krishnamurti, T. N, A. Thomas, A. Simon and V. Kumar, 2009: Antecedents of the dry spells of the Indian summer monsoon, Mausam Diamond Jubilee Volume, 115-126.
46. Krishnan, R, V. Kumar, M. Sugi, J. Yoshimura, 2009 : Internal Feedbacks from Monsoon–Midlatitude Interactions during Droughts in the Indian Summer Monsoon. J. Atmos. Sci., 66, 553–578.
47. Mujumdar, M., V. Kumar, and R. Krishnan, 2007: The Indian summer monsoon drought of 2002 and its linkage with tropical convective activity over northwest Pacific. Clim. Dyn., 28, 743-758.
48. Kumar, V., and R. Krishnan, 2005: On the association between the Indian summer monsoon and the tropical cyclone activity over Northwest Pacific., Current Science, 88(4), 602-612.
49. Kulkarni, J. R., V. Kumar, V. Satyan, 2002: The association of surface wind stresses over Indian Ocean and Monsoon rainfall. Met. Atmos. Phy., 79(3-4), 231-242.
(My experience in the team has shaped my belief that a shared vision, effective coordination and true empowerment are those that make the ‘whole’ greater than the sum of its parts)
Book Chapters:
Kumar, V., A. S. Gautam, T. Sinha, R. Pandey, 2020: Climate Variability and Trends over Dehradun during winter and Spring Seasons: A Case of Comfortability, Published in the book “Recent Advancements in Sciences with Special Reference to Himalaya”, by Alok Sagar Gautam, Publisher: Ancient Publishing House, Delhi – 110053, India, pp. 195-205.
Yatagai, A., V. Kumar, and T. N. Krishnamurti, 2018: Precipitation Data Archives for Assessing Climate Change Impacts and Adaptation. Climate Change Impacts on Basin Agro-ecosystems, Tsugihiro Watanabe, Selim Kapur, Mehmet Aydin, Riza Kanber, and Hans Guenter Brauchand (eds.), Springer Hexagon Series.
Deepa, R., and V. Kumar, 2015: Onset, Variability and its Impacts on Society and Economy. Horizons in Earth Science Research, volume 14, Benjamin Veress and Jozsi Szigethy (eds.), Nova Science Publishers, 2015, pp-272.
Krishnamurti, T. N., and V. Kumar, 2011: Tagging systematic errors arising from different components of the dynamics and physics in forecast models. Factor Separation in the Atmosphere, Pinhas Alpert and Tatiana Sholokhman (eds.), Cambridge University Press, pp-272.