Pallav Ray

Associate Professor | Ocean Engineering and Marine Sciences

Contact Information

Personal Overview

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. Please go to my personal website (see the above link) for the most up-to-date information.

Educational Background

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.

Professional Experience

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

Additional Duties

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.

Current Courses

Numerical Weather Prediction (Grad); Climatology (Undergrad); Atmospheric Dynamics (UG); Dynamic Meteorology (G); Marine Meteorology (G); Tropical Meteorology (G)

Selected Publications

email if you want a pdf of any papers.

* represents students. 


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), (submitted)

Resmi, E.A., B. Preethi, R.S. Ajayamohan, P. Ray, C.K. Unnikrishnan, S. Nita, R.K. Sumesh, and J. Dhamadas, 2021: Wet and dry rainfall spells over the southern tip of India: An assessment based on in situ data, Int. J. Climatology, (submitted)

Roose R., R.S. Ajayamohan, P. Ray, S.-P. Xie, C.T. Sabeerali, M. Mohapatra, S. Taraphdar, K. Mohankumar, and M. Rajeevan, 2021: Pacific Decadal Oscillation causes fewer near-equatorial cyclones in the north Indian Ocean, Nature Communication, (submitted)

Xie, J., P-C Hsu, P. Ray, K. Li, and W. Yu, 2022: Mechanism of MJO-modulated triggering on the rainy season onset over Indian subcontinent, Mon. Wea. Rev., (revised)

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, (accepted)

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, (accepted

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, npj Climate and Atmos. Sci.,

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, 

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.

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,



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,

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.

Barrett, B. S., C. R. Densmore*, P. Ray, and E. R. Sanabia, 2021: Active and weakening MJO events in the Maritime Continent. Climate Dynamics

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. (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,

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,

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,, 

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.

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


Tropical climate: large-scale dynamics, variability, and change

Madden-Julian Oscillation (MJO): Initiation and propagation; land-air-sea Interactions; role of topography;

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, momentum advection, 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;