I am currently a Lamont Associate Research Professor at the Lamont-Doherty Earth Observatory of Columbia University. I research the general circulation of the atmosphere, including the midlatitude jet streams, storm tracks and monsoon circulation, using observations and numerical model simulations. My recent research projects focus on understanding the impact of Arctic sea ice loss on the midlatitude weather and climate as well as understanding the summer monsoon circulation and its associated troposphere-stratosphere transport. Before joining Lamont, I worked an Assistant Professor in the Department of Earth, Atmospheric, and Planetary Sciences at Purdue University and before that, a postdoctoral research associate at the Courant Institute of Mathematical Sciences. I received Ph.D. in Applied Mathematics from Columbia University in 2011.