john dwyer
jgd2102 {at} columbia {dot} edu
john dwyer
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I am a 5th year Ph.D. student in the Department of Applied Physics and Applied Mathematics at Columbia University, though I also spend time at Lamont-Doherty Earth Observatory in the division of Ocean and Climate Physics. My primary interest is atmospheric and climate dynamics - I study the natural variability of the atmosphere and climate system as a whole and how they might change in the future.

My academic background is in Physics: I received a B.A. in Physics and Mathematics from Columbia University and an M.S. in Physics from the University of California, San Diego, before returning to Columbia to study climate science. As an undergraduate, I was part of the LIGO Scientific Collaboration and worked in an Szabolcs Marka's Astrophysics lab studying gravitational wave detection.

With my advisors, Adam Sobel and Michela Biasutti, I am studying the seasonal cycle of precipitation and temperature and how the strength and timing of the seasons may change in the future. In the tropics and subtropics, global climate models project an enhancement of summer precipitation and temperature relative to the winter and a delay to the timing of these variables. These changes are a robust response of global climate models to an increase in greenhouse gases and have implications for the timing and strengh of monsoonal rain and agriculture.