Assistant Professor, Meteorology, Ocean Engineering and Marine Sciences
I work on tropical climate dynamics and its variability using observations, high-resolution models (WRF) and theory. If you are a prospective graduate student (MS or Ph.D.), please feel free to contact me. For PhD in Meteorology, you will need to apply to the Environmental Science or Oceaography PhD program. If you are looking for a postdoc, please feel free to contact me as well.
Ph.D. (Meteorology and Physical Oceanography), RSMAS, U of Miami, Miami, FL.
M.S. (Engineering), CAOS, Indian Institute of Science (IISc.), Bangalore.
Bachelor of Civil Engineering, Jadavpur University, Kolkata.
Recognition & Awards
• Award of excellence from the University of Miami (2008)
• Graduate Student Fellowship from the Advanced Study Program, NCAR, Boulder, July 2006 – March 2007
Numerical Weather Prediction (G); Climatology (UG); Atmospheric Dynamics (UG); Dynamic Meteorology (G); Marine Meteorology (G); Tropical Meteorology (G)
2010-2012 Postdoctoral Fellow (Institutional), IPRC, University of Hawaii
2008-2010 Post-doctoral Associate, RSMAS, University of Miami
2007 Visiting Scientist, Mesoscale and Microscale Meteorology (MMM) division, NCAR, Boulder
2006-2007 Graduate Student Fellow, Advanced Study Program (ASP), NCAR, Boulder
2001-2002 Research Associate, Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science (IISc.), Bangalore, India
UCAR member representative; Faculty Senate Representative; Academic Policies committee, Faculty Hiring committee
2018 Co-Chair for “Intraseasonal Variability and MJO IV” (sessions 13A) at the 33rd Conference on Hurricanes and Tropical Meteorology, April 2018, Jacksonville, FL
2016 Co-Organizer, Intraseasonal variability, AMS conference on hurricanes and tropical meteorology, Puerto Rico.
2016 Co-Chair, Intraseasonal variability, AMS conference on hurricanes and tropical meteorology, Puerto Rico.
2016 Co-Organizer, MJO symposium, AMS Annual Meeting, New Orleans, LA
2016 Co-Chair, tropics extratropics interactions, AMS Annual Meeting, New Orleans , LA
Reviewer of several scientific journals including Atmospher-Ocean, Atmosphere, Climate Dynamics, GRL, JAS, JAMES, J Climate, JGR, MAP, QJRMS, Sci Rep, among others.
Madden-Julian Oscillation or MJO (Initiation and propagation; land-air-sea Interactions; role of topography);
Tropics-extratropics interactions (Role of extratropics on the MJO; Influence of the MJO on mid-latitude circulation);
Surface heat flux in the tropics (observations and models; diurnal cycle);
Urban climate (surface energy budget, momentum advection, role of urbanization on land-sea breeze);
Tropical Cyclones (low latitude cyclones; MJO influence on tropical cyclones);
email email@example.com if you want a pdf of any papers.
* represents students.
Tewari et al. 2021: Understanding the sensitivity of WRF hindcast of Beijing Super-Storm of 21 July 2012 to microphysics and model initial time (in preparation)
Tan, H.*, P. Ray, et al. 2021: Role of topography on the diurnal cycle of precipitation in the Maritime Continent during MJO propagation, (in preparation)
Roose et al. 2021: Fewer but stronger near-equatorial cyclones in the north Indian Ocean, (in preparation)
Tewari et al. 2021: Improved seasonal prediction of harmful algal blooms using large-scale climate indices (submitted)
Ramos*, C.G.M., H. Tan* , P. Ray, and J. Dudhia, 2021: Estimates of the sensible heat of rainfall in the tropics from reanalysis and observations, Int. J. Climatol., (submitted)
Tewari, M., D. Chen, V. Doan, H. Kusaka, P. Ramamurthy, P. Ray, and Z. Wang, 2021: Extreme wather forecasting in urban areas, Astitha and Nikolopoulos, Ed. , Extreme Weather Forecsting: State of science, uncertainty and impacts. Elsevier, (submitted)
Ray P., X. Zhou*, H. Tan*, J. Dudhia, and M.W. Moncrieff, 2021: Improved simulation of the mid-latitude climate in a new channel model compared to contemporary GCMs, Geophys. Res. Lett., (submitted)
Barrett, B. S., C. R. Densmore*, P. Ray, and E. R. Sanabia, 2021: Active and weakening MJO events in the Maritime Continent. Climate Dynamics, https://doi.org/10.1007/s00382-021-05699-8
Tan, H.*, P. Ray, B. S. Barrett, J. Dudhia, and M. W. Moncrieff, 2021: Systematic patterns in land precipitation due to convection in neighboring islands in the Maritime Continent during MJO propagation, J. Geophys. Res. Atmos., 126, e2020JD033465. https://doi.org/10.1029/2020JD033465 (special issue on Years of Maritime continent or YMC).
Ray, P., H. Tan*, M. Tewari, J. Brownlee*, R. S. Ajayamohan, and B. S. Barrett, 2021: Role of advection on near-surface temperature and wind in urban-aware simulations, J. Appl. Meteor. Climatol., 60 (2), 201-221, https://doi.org/10.1175/JAMC-D-20-0068.1
Selected Papers (2020 and earlier)
Zhou*, X., P. Ray, B. S. Barrett, and P-C Hsu, 2020: Understanding the bias in surface latent and sensible heat fluxes in contemporary AGCMS over tropical oceans, Climate Dynamics , 55, 2957-2978, https://doi.org/10.1007/s00382-020-05431-y
Mittal, R., M. Tewari, C. Radhakrishnan, P. Ray, T Singh, and A. Nickerson*, 2019: Response of tropical cyclone Phailin (2013) in the Bay of Bengal to climate perturbations,. Climate Dynamics, doi.org/10.1007/s00382-019-04761-w,
Zhou*, X., P. Ray, K. Boykin*, B. S. Barrett, and P-C Hsu , 2019: Evaluation of surface radiative fluxes over the tropical oceans in AMIP simulations, Atmosphere, 10(10), 606. https://doi.org/10.3390/atmos10100606
Tan*, H., P. Ray, M. Tewari, J. Brownlee*, and R. S. Ajayamohan, 2019: Response of near-surface meteorological conditions to advection under the impact of green roof, Atmosphere, 10(12), 759.
Tan, H.*, P. Ray, B. S. Barrett, M. Tewari, and M. W. Moncrieff, 2018: Role of topography on the MJO in the Maritime Continent: a numerical case study. Climate Dynamics, doi:10.1007/s00382-018-4275-3.
Brownlee* J., P. Ray, M. Tewari, and H. Tan* (2017): Relative role of turbulent and radiative flux on the near-surface temperatures in a single-layer urban canopy model over Houston, J. Appl. Meteor. Climatol., 56, 2173-2187.
Y. Zhang and P. Ray (Ed.), 2014: Climate change and regional/local response, Intech Publisher, ISBN 978-953-51-1132-0, pp 247.
Collins, S., R. James, P. Ray, K. Chen*, A. Lassman*, and J. Brownlee*, 2014: Grids in numerical weather and climate models, In Y. Zhang and P. Ray (Ed.) Climate change and regional/local responses, ISBN 978-953-51-1132-0, 111-128. [Abstract]
Ray, P., and T. Li, 2013: Relative roles of the circumnavigating waves and the extratropics on the MJO and its relationship with the mean state, J. Atmos. Sci., 70, 876-893.
Ray, P., 2012: Mean state and the MJO in a high-resolution nested regional climate model, In I. Yucel (Ed.) Atmospheric Model Applications, InTech Open Access Publisher, pp 69-84, ISBN: 979-953-307-335-3.
McNeely, S., and Coauthors, 2012: Catalyzing frontiers in water-climate-society research: A view from early career scientists and junior faculty, Bull. Amer. Meteorol. Soc., 93, 477-484, doi:10.1175/BAMS-D-11-00221.1
Ray, P., C. Zhang, M. W. Moncrieff, J. Dudhia, J. Caron, L. R. Leung, and C. Bruyere, 2011: Role of the atmospheric mean state on the initiation of the Madden-Julian oscillation in a tropical channel model, Clim. Dyn., 36(1), 661-184, doi: 10.1007/s00382-010-0859-2
Ray, P., and C. Zhang, 2010: A case study of the mechanics of extratropical influence on the initiation of the Madden-Julian oscillation, J. Atmos. Sci., 67, 515-528, doi: 10.1175/2009JAS3059.1
Ray, P., C. Zhang, J. Dudhia, and S. S. Chen, 2009: A numerical case study on the initiation of the Madden-Julian oscillation, J. Atmos. Sci., 66, 310-331, doi: 10.1175/2008JAS2701.1