PCAR Seminar

Climate Change Impact on the Tropical Pacific and Global Tropical Cyclones

Chia-Ying Lee, Associate Professor Lamont-Doherty Earth Observatory, Columbia University 

Picture of Chia-Ying Lee, Associate Professor Lamont-Doherty Earth Observatory, Columbia University

Date: Thursday, March 14, 2024 

Time: 4:00 PM 

Host: Professor Mike Zink 

Location: Hasbrouck Room 138        

Abstract: The equatorial tropical Pacific, characterized by the western Pacific warm pool and eastern Pacific cold tongue, is known to modulate global tropical cyclone activities, especially through its interannual variability, the El Niño-Southern Oscillation (ENSO). In response to greenhouse gas warming, this zonal sea-surface temperature gradient is expected to change, both its mean state and its ENSO variability, and will consequently affect the projections of global tropical cyclone activity.  In this presentation, I will discuss the sensitivity of global TC projections to changes of the tropical Pacific mean-state as well as the changes in conventional ENSO-TC relationship due to global warming in the CMIP6 models. 

Bio: Chia-Ying Lee is an Associate Research Professor at the Lamont-Doherty Earth Observatory, Columbia University. She is working on tropical cyclone (TC) and climate, and her research topics include developing a statistical-dynamical TC downscaling system for risk assessment, Madden–Julian oscillation and TC relationships in the subseasonal to seasonal (S2S) dataset. Lee has a background in Atmospheric Science. She received my B.S, and M.S. at the National Taiwan University under Professor Chun-Chieh Wu. In 2007, she attended the Meteorology and Physical Oceanography (MPO) division at the Rosenstiel School of Marine and Atmospheric Science (RSMAS) at the University of Miami. Lee worked with Professor Shuyi Chen on air-sea coupled modeling in TCs and received her degree in 2012.