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Atmospheric Science & Global Change

Staff information


Sourav Taraphdar

Computational Climate Science
Earth Scientist
Pacific Northwest National Laboratory
PO Box 999
MSIN: K9-24
Richland, WA 99352

Research Interests

  • Tropical Cyclone
  • Indian Summer Monsoon
  • Predictability of Highly convective systems
  • Moist Physical Processes

Education and Credentials

  • Ph.D. in Atmospheric Science, University of Pune (worked place Indian Institute of Tropical Meteorology), India
  • M.Tech in Atmospheric Physics, University of Pune, India
  • M.Sc in Physics, Guru GhasiDas University, India
  • B.Sc in Physics (Hons), Mathematics, Electronics, University of Calcutta, India

Affiliations and Professional Service

  • American Meteorological Society

PNNL Publications


  • Balaguru K., S. Wang, L. Leung, S.M. Hagos, B.E. Harrop, C. Chang, and S. Lubis, et al. 2024. "Influence of Eastern Pacific hurricanes on the Southwest US wildfire environment." Geophysical Research Letters 51, no. 4:Art. No. e2023GL106774. PNNL-SA-191085. doi:10.1029/2023GL106774


  • Gopalakrishnan D., S. Taraphdar, O. Pauluis, L. Xue, R.S. Ajayamohan, N. Al Shamsi, and S. Chen, et al. 2023. "Anatomy of a Summertime Convective Event Over the Arabian Region." Monthly Weather Review 151, no. 4:89-1004. PNNL-SA-182591. doi:10.1175/MWR-D-22-0082.1
  • Roose S., R.S. Ajayamohan, R. Pallav, S. Xie, C. Sabeerali, M. Mohapatra, and S. Taraphdar, et al. 2023. "Pacific Decadal Oscillation Causes Fewer Near-Equatorial Cyclones in the North Indian Ocean." Nature Communications 14. PNNL-SA-188624. doi:10.1038/s41467-023-40642-x


  • Taraphdar S., F. Zhang, L. Leung, X. Chen, and O. Pauluis. 2018. "MJO Affects the Monsoon Onset Timing over the Indian Region." Geophysical Research Letters 45, no. 18:10011-10018. PNNL-SA-135068. doi:10.1029/2018GL078804


  • Taraphdar S., P. Mukhopadhyay, L. Leung, and K. Landu. 2016. "Prediction Skill of Tropical Synoptic Scale Transients from ECMWF and NCEP Ensemble Prediction Systems." Mathematics of Climate and Weather Forecasting 2, no. 1:26-42. PNNL-SA-123191. doi:10.1515/mcwf-2016-0002
  • Yang Z., S. Taraphdar, T. Wang, L. Leung, and M.E. Grear. 2016. "Uncertainty and feasibility of dynamical downscaling for modeling tropical cyclones for storm surge simulation." Natural Hazards 84, no. 2:1161-1184. PNNL-SA-119692. doi:10.1007/s11069-016-2482-y


  • Taraphdar S., L. Leung, and S.M. Hagos. 2015. "Linkages of Remote Sea Surface Temperatures and Atlantic Tropical Cyclone Activity Mediated by the African Monsoon." Geophysical Research Letters 42, no. 2:572-578. PNNL-SA-105745. doi:10.1002/2014GL062600


  • Balaguru K., S. Taraphdar, L. Leung, and G.R. Foltz. 2014. "Increase in the Intensity of Postmonsoon Bay of Bengal Tropical Cyclones." Geophysical Research Letters 41, no. 10:3594-3601. PNNL-SA-101048. doi:10.1002/2014GL060197
  • Balaguru K., S. Taraphdar, L. Leung, G.R. Foltz, and J.A. Knaff. 2014. "Cyclone-cyclone Interactions through the Ocean Pathway." Geophysical Research Letters 41, no. 19:6855-6862. PNNL-SA-96628. doi:10.1002/2014GL061489


  • Hazra A., P. Mukhopadhyay, S. Taraphdar, J.P. Chen, and W.R. Cotton. 2013. "Impact of Aerosols on Tropical Cyclones: An Investigation Using Convection-permitting Model Simulation." Journal of Geophysical Research: Atmospheres 118, no. 13:7157-7168. PNNL-SA-88526. doi:10.1002/jgrd.50546
  • Hazra A., S. Taraphdar, M. Halder, S. Pokhrel, H.S. Chaudhari, K. Salunke, and P. Mukhopadhyay, et al. 2013. "Indian Summer Monsoon Drought 2009: Role of Aerosol and Cloud Microphysics." Atmospheric Science Letters 14, no. 3:181-186. PNNL-SA-88422. doi:10.1002/asl2.437
  • Manoj M.G., P.S. Devara, and S. Taraphdar. 2013. "Lidar Investigation of Tropical Nocturnal Boundary Layer Aerosols and Cloud Macrophysics." Atmospheric Research 132-133. PNNL-SA-91264. doi:10.1016/j.atmosres.2013.05.007

Selected Publications


  • Chakravarty K, P Mukhopadhyay, and S Taraphdar. 2011. “Cloud microphysical properties as revealed by the CAIPEEX and satellite observations and evolution of a cloud system resolving model simulation of contrasting large scale environments.” J. Atmos. Solar Terres. Phys., 73:1790-1797. doi:10.1016/j.jastp.2011.04.006.
  • Mukhopadhyay P, S Taraphdar, and BN Goswami. 2011. “Influence of moist processes on track and intensity forecast of cyclones over the North Indian Ocean.” J. Geophys. Res. Atmos., 116:D05116. doi:10.1029/2010JD014700.


  • Taraphdar S, P Mukhopadhyay, and BN Goswami. 2010. "Predictability of Indian summer monsoon weather during active and break phases using a high resolution regional model." Geophys. Res. Lett., 37: L21812. doi:10.1029/2010GL044969.

  • Mukhopadhyay P, S Taraphdar, BN Goswami, and K Krishnakumar. 2010. “Indian summer monsoon precipitation climatology in a high resolution regional climate model: Impact of convective parameterization on systematic biases.” Wea. Forecasting, 25:369-387. doi:10.1175/2009WAF2222320.1.


  • Taraphdar S, J Sanjay, and P Mukhopadhyay. 2009. "On northward movement of convergence zones along west coast of India in a real-time forecast." Meteorl. Atmos. Phys., 104:177–189. doi:10.1007/s00703-009-0025-8.


  • Sanjay J, S Joshi, and S Taraphdar. 2007. "Numerical simulation of heavy rainfall over Ratnagiri on May 30, 2006 using WRF." Vayu Mandal, 33:39-50.
  • Sanjay J, S Taraphdar, M Rajeevan, G B Pant, and P C Joshi. 2007. "Vegetation feedbacks on regional climate model forecasts over Indian region." Vayu Mandal, 33:18–27.
  • Taraphdar S, J Sanjay, and P Mukhopadhyay. 2007. "On northward propagation of convergence zones along west coast of India in NCEP forecasts during onset of summer monsoon 2006." Vayu Mandal, 33:58-69.

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