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Research Interest

General circulation of the atmosphere that is driven thermally and dynamically exhibits fascinating patterns. I am interested in studying changes of the general circulation on the climate time scales. These changes may arise from anthropogenic external forcings to the climate system, and/or from internal couplings whitin the system. I am particularly interested in the region of upper troposphere and lower stratosphere, where dynamical, radiative, chemical and thermodyanmical processes are tightly coupled. Using the state-of-the-art atmospheric model developed at the Geophysical Fluid Dynamics Laboratory, together with the latest observations, I am seeking to an improved understanding of the climate system on the process level.

I am a member of the core development team of GFDL’s next-generation atmospheric model AM5. I am leading the model developments related to the stratosphere. I am working on the parameterization schemes that better representing stratospheric ozone variations and non-orographic gravity waves.

I have also been developing and analyzing the aquaplanet global atmospheric model at the horizontal resolution varying from O(100km) to O(1km). These simulations provide unique opportunities to study the complex coupling of the climate system across scales. We have seen fascinating resolution dependence in these aquaplanet simulations in terms of global mean precipitation, latitudinal distribution of clouds, ITCZ width and strength, atmospheric meridional energy transport, convective organization as well as stratospheric water vapor concentration. Investigation on the physical mechanisms for such resolution dependence is underway.

Publication

GFDL bibliography

Selected Recent Presentations

• Lin, P., C.-Y. Chang, I. Held, T. Merlis and P. Zurita-Gotor: Compensating energy transport by mean circulation and eddies over the deep tropics simulated in GCMs at different resolutions. Presented at the 2024 CFMIP/CLIVAR meeting on clouds, circulation and climate, Boston, MA. Poster
• Lin, P.: Tropical tropopause changes simulated in CMIP6 models. Presented at the 2023 AGU Fall meeting, San Francisco, CA and the 104th AMS annual meeting, AMS, Baltimore, MD. Poster

Community Service

• Member – AMS committee on middle atmosphere
• Program chair – AMS 22nd Conference on middle atmosphere at Burlington, VT, 24-28 Jun 2024
• Member – Selection committee for AGU Yoram J. Kaufman outstanding and unselfish cooperation in research award
• Reviewer – WMO/UNEP Scientific Assessment of Ozone Depletion 2018, 2022

Academic Appointments

2024 – Present: Research Physical Scientist, GFDL

2022 – 2024: Professional Specialist, Princeton University/GFDL

2015 – 2022: Associate Research Scholar, Princeton University/GFDL

2013 – 2015: Postdoctoral Research Scholar, Princeton University/GFDL

Education

2013 Ph.D. Atmospheric Sciences, University of Washington, Seattle, WA

2006 B.S. Atmospheric Sciences, Peking University, Beijing, China