I work on tropical climate dynamics and its variability using observations, models, and theory. For Ph.D. in Meteorology, you will need to apply to the Environmental Science or Oceanography Ph.D. program. Please go to my research website (see the above link) for more details.
If you are a prospective graduate student (MS or Ph.D.) or looking for a postdoc position, please feel free to contact me. I have openings for 2 PhD students, and 1 postdoc (as of August 2022).
Ph.D. (Meteorology and Physical Oceanography), RSMAS, U of Miami, Miami, FL.
M.S. (Engineering), Center for Atmospheric and Oceanic Sciences (CAOS), Indian Institute of Science (IISc.), Bangalore.
B.E. (Civil), Jadavpur University, Kolkata.
Postdoctoral Fellow (Institutional), IPRC, University of Hawaii
Post-doctoral Associate, RSMAS, University of Miami
Visiting Scientist, Mesoscale and Microscale Meteorology (MMM) Division, NCAR, Boulder
Graduate Student Fellow, Advanced Study Program (ASP), NCAR, Boulder
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 Atmosphere-Ocean, Atmosphere, Climate Dynamics, GRL, JAS, JAMES, J Climate, JGR, MAP, QJRMS, Sci Rep, among others.
Reviewer for Funding Agencies.
Numerical Weather Prediction (Grad); Climatology (Undergrad); Atmospheric Dynamics (UG); Dynamic Meteorology (G); Tropical Meteorology (G)
email email@example.com if you want a pdf of any papers.
* represents students.
Zhou, X., P. Ray, et al. 2023: Rain-induced surface sensible heat flux on monsoonal precipitation over India, Geophys.Res. Lett.
Vasu, S.P., P. Ray, N. Johnson, E. Nikolopoulos, and S. Lestari 2023: Exploring the spatio-temporal variations in soil moisture in the Maritime Continent, J. Climate
Tewari, M., P. Ray, et al. 2023: Exploring the dependence of an extreme precipitation event over Beijing on PBL and urban parameterizations, Atmos. Res.
Tan, H., R. Kotamarthi, and P. Ray, 2023: Estimation of surface sensible heat flux due to precipitation over CONUS and its impact on urban extreme precipitation modeling, J. Hydrometeorology,
Resmi, E.A., B. Preethi, R.S. Ajayamohan, P. Ray, C.K. Unnikrishnan, S. Nita, R.K. Sumesh, and J. Dhamadas, 2023: Analysis of localized features during wet and dry rainfall episodes over southern tip of India, Int. J. Climatology, 1-20. https://doi.org/10.1002/joc.8267/
Roose R., R.S. Ajayamohan, P. Ray, S.-P. Xie, C.T. Sabeerali, M. Mohapatra, S. Taraphdar, K. Mohankumar, and M. Rajeevan, 2023: Pacific Decadal Oscillation causes fewer near-equatorial cyclones in the north Indian Ocean, Nature Communication, 14, 5099 (2023). https://doi.org/10.1038/s41467-023-40642-x
Tewari, M., C. M. Kishtawal, V.W. Moriarty, P. Ray, T. Singh, L. Zhang, and L. Treinish, 2022: Improved seasonal prediction of harmful algal blooms using large-scale climate indices, (Nature) Comm in Earth and Env, 3, 195, https://doi.org/10.1038/s43247-022-00510-w
Xie, J., P-C Hsu, P. Ray, K. Li, and W. Yu, 2022: Mechanism of MJO-modulated triggering on the rainy season onset over the Indian subcontinent, Mon. Wea. Rev., 150 (8), 1937-1951. https://doi.org/10.1175/MWR-D-21-0275.1
Tewari, M., Z. Wang, D. Chen, Q.-V. Doan, H. Kusaka, P. Ramamurthy, and P. Ray, 2021: Extreme weather forecasting in urban areas, Astitha and Nikolopoulos, Ed., Extreme Weather Forecasting: State of science, uncertainty and impacts. Elsevier, pp-358. https://www.elsevier.com/books/extreme-weather-forecasting/astitha/978-0-12-820124-4
Zhou, X., P. Ray, B. Barrett, and P-C Hsu, 2022: Systematic improvement in simulated surface latent and sensible heat fluxes over tropical oceans in AMIP6 models compared to AMIP5 with the same horizontal resolutions, Atmospheric Research, 274, 106214, https://doi.org/10.1016/j.atmosres.2022.106214
Roose, S., R.S. Ajayamohan, P. Ray, P.R. Mohan, and K. Mohankumar, 2022: ENSO influence on Bay of Bengal cyclogenesis confined to low latitudes, (Nature) npj Climate and Atmos. Sci., 5, 31, https://www.nature.com/articles/s41612-022-00252-8
Tewari, M., F. Chen, J. Dudhia, P. Ray, S.G. Miao, E. Nikolopoulos, and L. Treinish, 2022: Understanding the sensitivity of WRF hindcast of Beijing extreme rainfall of 21 July 2012 to microphysics and model initial time, Atmospheric Research, 271, 106085, https://doi.org/10.1016/j.atmosres.2022.106085
Blanken, P.D., D. Brunet, C. Dominguez, S. Goousaud Oger, S. Hussain, M. Jain, G. Koren, Y. Mu, P. Ray, P. Saxena, S. Sonwani, and D. Sur, 2022: Atmospheric Science perspective on Integrated, Coordinated, Open, Networked (ICON) science, Earth and Space Science, 9, e2021EA002204. https://doi.org/10.1029/2021EA002204
Tan, H.*, P. Ray, B. S. Barrett, J. Dudhia, and M. W. Moncrieff, L. Zhang, and D. Zermano-Diaz, 2022: Understanding the role of topography on the diurnal cycle of precipitation in the Maritime Continent during MJO propagation, Climate Dynamics, 58, 3003-3019, https://doi.org/10/1007/s00382-021-06085-0
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., 1-14, https://doi.org/10.1002/joc.7363
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., 48, e2021GL093297. https://doi.org/10.1029/2021GL093297
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.
Ray, P., C. Zhang, J. Dudhia, T. Li, and M. W. Moncrieff, 2012: Tropical channel model, In L. M. Druyan (Ed.) Climate Models, InTech Open Access Publisher, pp 3-18, ISBN: 978-953-308-181-6.
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
My research is funded by DOE, NASA, NOAA, and ONR in one of the following areas:
Tropical meteorology: large-scale dynamics, variability, and change. Land-air-sea Interactions. Weather and climate of the Maritime Continent
Madden-Julian Oscillation (MJO): Initiation, organization and propagation; Role of topography and land-sea contrast on MJO.
Tropics-extratropics interactions and predictability: Role of extratropics on the MJO; Influence of the MJO on mid-latitude circulation;
Surface heat flux in the tropics: observations and modeling; diurnal cycle; role on MJO
Urban climate: surface energy budget, role of urbanization on land-sea breeze;
Tropical Cyclones: Near-equatorial cyclones; MJO influence on tropical cyclones;
Regional climate modeling: Tropical and Mid-latitude channel models;