The Vecchi Research Group

Vecchi Research Group photo

Left to right: David Luet, Sirisha Kalidindi, Jingru Sun, Wengchang Yang, Tsung-Lin Hsieh, Sofia Menemenlis, Maya Chung, Chenggong Wang.  Back row:  Professor Gabriel Vecchi

The Vecchi Research Group

Group Mission:

The goals of the Vecchi Research Group in the Department of Geosciences and Princeton Environmental Institute at Princeton University are to: 1) develop understanding about the character of, mechanisms behind, and impacts of past and future changes to the oceans and atmosphere, and 2) teach people about both the workings of climate, as well as how to generate new understanding through scientific research.

Topics that we study include: tropical climate and circulation, the El Niño-Southern Oscillation phenomenon, monsoon dynamics, variations and changes in tropical cyclones, the controls on rainfall and heat waves, the character and mechanisms of the global response to changing greenhouse gases and volcanic eruptions, and the climate-disease connection.


We use a combination of numerical modeling, theory and observational data analysis to understand climate and its impacts.

In order to effectively pursue our research and educational goals we are committed to striving for excellence, building our knowledge and tools, allowing space for creativity and inspiration, questioning our assumptions and preconceptions, working cooperatively, treating people with respect, encouraging discussions and disagreeing constructively, and adhering to the highest standards of scientific and academic ethics.

Statement on Diversity, Inclusion and Equity:

We believe that equity, diversity and inclusion are intrinsically valuable, and an essential element of ethical research and educational practices. We also understand that they magnify the educational and research potential of us as individuals, our research group, the University and our global scientific disciplines. We seek and appreciate contributions from all members of our community, without regard to race, ethnicity, culture, religion, sexual orientation, gender identity and expression, physical ability, age, socioeconomic status or nationality. We desire and celebrate diversity, and we know that a more diverse and inclusive community is stronger and more capable of producing fundamental scientific advances and effectively communicating them.

About Professor Gabriel Vecchi

Gabriel Vecchi, Faculty

Gabriel Vecchi is a Professor of Geosciences and The High Meadows Environmental Institute, and Director, Cooperative Institute for Modeling the Earth System at Princeton University.

His research interests are climate science; extreme weather events; hurricanes; mechanisms of precipitation variability and change; ocean-atmosphere interaction; detection and attribution.



In the News

No dudes: el cambio climático influye en todas las olas de calor (y en otros eventos extremos)
May 12, 2022
Written by Eduardo Robaina, Climática

(In Spanish) Dos científicos del clima del World Weather Attribution (WWA) han creado una guía sobre cómo comunicar el cambio climático y su relación con los fenómenos meteorológicos extremos. (Vecchi mention)

This is what the world looks like if we pass the crucial 1.5-degree climate threshold
Nov. 8, 2021
Written by Lauren Sommer, NPR
There's one number heard more than any other from the podiums at the United Nations climate summit in Glasgow, Scotland: 1.5 degrees Celsius. Gabriel Vecchi, professor of geosciences at Princeton University. "If we go on a path to 3 degree warming, more and more things that are unheard of or have been unheard of will become relatively commonplace."

Recent Publications

6 Publications
Harrison, D.E., and G.A. Vecchi. 1997. “Westerly Wind Events In The Tropical Pacific, 1986-95”. Journal Of Climate 10. American Meteorological Society: 3131-3156. doi:10.1175/1520-0442(1997)010<3131:WWEITT>2.0.CO;2.
Muñoz, Á.G., X. Yang, G.A. Vecchi, A.W. Robertson, and W.F. Cooke. 2017. “A Weather-Type-Based Cross-Time-Scale Diagnostic Framework For Coupled Circulation Models”. Journal Of Climate 30. American Meteorological Society: 8951-8972. doi:10.1175/JCLI-D-17-0115.1.
Vecchi, G.A., B.J. Soden, A.T. Wittenberg, I.M. Held, A. Leetmaa, and M.J. Harrison. 2006. “Weakening Of Tropical Pacific Atmospheric Circulation Due To Anthropogenic Forcing”. Nature 441. Nature Publishing Group: 73-76. doi:10.1038/nature04744.
Pascale, S., W.R. Boos, S. Bordoni, T.L. Delworth, S.B. Kapnick, H. Murakami, G.A. Vecchi, and W. Zhang. 2017. “Weakening Of The North American Monsoon With Global Warming”. Nature Climate Change 7. Nature Publishing Group: 806-812. doi:10.1038/nclimate3412.
Soden, B.J., and G.A. Vecchi. 2011. “The Vertical Distribution Of Cloud Feedback In Coupled Ocean-Atmosphere Models”. Geophysical Research Letters 38. Blackwell Publishing Ltd. doi:10.1029/2011GL047632.
Luitel, B., G. Villarini, and G.A. Vecchi. 2018. “Verification Of The Skill Of Numerical Weather Prediction Models In Forecasting Rainfall From U.s. Landfalling Tropical Cyclones”. Journal Of Hydrology 556. Elsevier B.V.: 1026-1037. doi:10.1016/j.jhydrol.2016.09.019.