Group members

Marysa LaguË

James S. McDonnell Postdoctoral Fellow

Quentin Nicolas

Ph.D. student, UC Berkeley

S. Vishnu

Postdoctoral scholar, UC Berkeley (sponsored by India’s Monsoon Mission)

Nandini Ramesh

Postdoctoral scholar, UC Berkeley

Michael Diaz

Postdoctoral scholar, UC Berkeley

Recent publications

More Publications

Philosophical Transactions A, submitted

npj Clim. Atmos. Sci., 2020, 3, doi:10.1038/s41612-020-0114-4

J. Atmos. Sci., 2020, 77, 1213–1232, doi:10.1175/JAS-D-19-0202.1

Upcoming talks

Before the pandemic, I was thinking about my carbon footprint and trying to minimize travel, though I did undertake trips important for my mission of trying to improve the understanding and prediction of precipitation in tropical, developing countries. I will continue to post my travel plans here in hopes that future trips might be combined to reduce air travel. One cross-country, round-trip U.S. flight emits about 1000 kg of CO2, while one long-haul international round trip emits about 2000 kg of CO2. In comparison, all of the electricity, natural gas, and municipal water used by my 2-person household are estimated to generate about 4000 kg of CO2 per year. For the next year it is likely that I will only be giving virtual talks, and am happy to do so after pandemic travel restrictions are relaxed.

University of Reading, Department of Meteorology Seminar, June 22, 2020


Current courses at UC Berkeley (in Fall 2020 these classes will be taught online, and I would be happy to include any serious students who want to do the full semester of work, even if they are not registered at Berkeley):

  • EPS 181 | Atmospheric Physics and Dynamics (Fall 2020)
  • EPS 290 | Global Circulation of Planetary Atmospheres (Fall 2020)

Previous courses:

  • EPS 81 | Atmospheres (Spring 2019, 2020)
  • EPS C181 | Atmospheric Physics and Dynamics (Fall 2017, 2018, 2019)
  • EPS 24 | Death by Water: Risk, Science, and Impacts of Hydrological Extremes (Fall 2017, 2019)
  • Yale GG 765 | The General Circulation of Planetary Atmospheres (Spring 2012, 2015, 2017)
  • Yale GG 322 | Physics of Weather and Climate (Fall 2011, 2013, 2014, 2016)
  • Yale GG 570 | Cloud Physics and Dynamics, co-taught with Trude Storelvmo (Spring 2011, 2014)

Data & Tools, a website with educational pages and recent news about monsoons

Global track datasets of monsoon disturbances:

Somali jet index, a measure of the strength of the South Asian monsoon circulation, and of roughly 30 percent of the global cross-equatorial flow

South Asian vertical shear index, the strength of the vertical shear of the zonal wind over South Asian. This was developed by Webster and Yang (1992, QJRMS) as a measure of the strength of the South Asian monsoon circulation.


My research group will have an opening for a new graduate student to start in Fall 2021. Details can be found here.