Earth Scientist
Earth Scientist


Andrew Gettelman is a scientist specializing in clouds and climate change. His work concerns the development and analysis of global model simulations of the climate system with a focus on the development of physical parameterizations of clouds in global climate models and the physics and chemistry of the upper troposphere and lower stratosphere. In addition to developing and managing Earth system models, Gettelman is involved in model evaluation data analysis with satellites and field programs and has served on science teams for both satellite and field projects. Gettelman has been a visiting professor in Physics in Oxford, an Erskine visiting fellow at the University of Canterbury in Christchurch, New Zealand, and a visiting professor in the Institute for Atmospheric and Climate Science at the Swiss Federal Institute of Technology in Zürich, Switzerland. Gettelman came to Pacific Northwest National Laboratory after being a senior scientist at the National Center for Atmospheric Research. Gettelman is the author or co-author on over 200 peer reviewed publications and a textbook (Demystifying Climate Models, Springer). Gettelman has a PhD in atmospheric sciences from the University of Washington and a BS in civil engineering from Princeton University. Click to view Andrew Gettelman's full CV here.

Research Interest

  • Clouds and climate change
  • Aerosol-cloud interactions
  • Climate model development and app


  • PhD in Atmospheric Sciences, University of Washington
  • BE in Civil Engineering, Princeton University

Affiliations and Professional Service

  • Editor, Reviews of Geophysics, 2022 – Present
  • Co-Chair, World Climate Research Programme Digital Earth Lighthouse Activity, 2022 – Present
  • Science Board Member, Atmospheric Radiation Measurement Climate Research Facility, 2020 2021
  • Coordinator, Aerosols, Clouds Precipitation and Climate Shallow Clouds Working Group under the World Climate Research Programme and International Geosphere-Biosphere Programme, 2019 – Present
  • Science Coordinating Committee Member, NASA Aerosol, Clouds, Convection and Precipitation Study, 2017 – 2021
  • Member, National Academy of Sciences Panel, Opportunities to Improve the Representation of Clouds and Aerosols in Climate Models with Classified Observing Systems, 2015 – 2016
  • User Executive Committee Member, Department of Energy Atmospheric System Research, 2015 – 2019
  • Steering Committee, SPARC-IGAC Chemistry Climate Model Initiative, 2012 – 2019
  • Steering Committee, SPARC-IGAC Atmospheric Chemistry and Climate Initiative, 2007 – 2012
  • Co-Coordinator, SPARC Chemistry-Climate Model Validation Project, 2005 – 2012
  • Contributing Author, Chapter 6, World Meteorological Organization Ozone Assessment, 2006
  • Communications Secretary, American Geophysical Union Atmospheric Sciences Section, 2003 – 2006

Awards and Recognitions

  • Fellow, American Geophysical Union, 2022
  • Highly Cited Paper Award, J. Advances in Modeling Earth Systems, 2022
  • National Center for Atmospheric Research Director’s Special Recognition Award: Development and Leadership of the System for Integrated Modeling of the Atmosphere, 2022
  • Top Cited Article, Geophysical Research Letters, 2019 – 2020
  • Group Achievement Award for ATTREX Project, NASA, 2016
  • Ascent Award, American Geophysical Union, 2015
  • Member, National Academy of Sciences Panel, Opportunities to Improve the Representation of Clouds and Aerosols in Climate Models with Classified Observing Systems, 2015 – 2016
  • Thompson Reuters Highly Cited Researcher, 2014 – 2022
  • Editor’s Award, Journal of the Atmospheric Sciences, 2004



  • Florindo, F., Acocella, V., Carlton, A. M., D’Odorico, P., Duan, Q., Gettelman, A., et al. 2023. “60 years and beyond of Reviews of Geophysics.” Reviews of Geophysics, 61, e2023RG000807.
  • Gettelman, Andrew, Hugh Morrison, Trude Eidhammer, Katherine Thayer-Calder, Jian Sun, Richard Forbes, Zachary McGraw, Jiang Zhu, Trude Storelvmo, and John Dennis. 2023. “Importance of Ice Nucleation and Precipitation on Climate with the Parameterization of Unified Microphysics Across Scales Version 1 (PUMASv1).” Geoscientific Model Development, 16(6): 1735–54.
  • Christina S. McCluskey, Andrew Gettelman, Charles G. Bardeen, Paul J. DeMott, Kathryn A. Moore, Sonia M. Kreidenweis, Thomas C. J. Hill, Kevin R. Barry, Cynthia H. Twohy, Darin W. Toohey, Bryan Rainwater , Jorgen B. Jensen, John M. Reeves, Simon P. Alexander, and Greg M. McFarquhar. 2023. S”imulating Southern Ocean Aerosol and Ice Nucleating Particles in the Community Earth System Model Version 2,” J. Geophys. Res. Atmos. doi:10.1029/2022JD036955


  • Huang, Xingying, Andrew Gettelman, William C. Skamarock, Peter Hjort Lauritzen, Miles Curry, Adam Herrington, John T. Truesdale, and Michael Duda. 2022. “Advancing precipitation prediction using a new-generation storm-resolving model framework – SIMA-MPAS (V1.0): a case study over the western United States,” Geosci. Model Dev., 15, 8135–8151. doi: 10.5194/gmd-15-8135-2022
  • A. Herrington, P. Lauritzen, W. Lipscomb, M. Lofverstrom, A. Gettelman and M. Taylor. 2022. “Impact of grids and dynamical cores in CESM2.2 on the surface mass balance of the Greenland Ice Sheet,” J. Advances Modeling Earth Systems. doi: 10.1029/2022MS003192
  • Järvinen, Emma, Christina S. McCluskey, Fritz Waitz, Martin Schnaiter, Aaron Bansemer, Charles G. Bardeen, Andrew Gettelman, et al. 2022. “Evidence for Secondary Ice Production in Southern Ocean Maritime Boundary Layer Clouds.” Journal of Geophysical Research: Atmospheres, 127 (16), e2021JD036411.
  • Stephens, Graeme L., Maria Z. Hakuba, Seiji Kato, Andrew Gettleman, Jean-Louis Dufresne, Timothy Andrews, Jason N. S. Cole, Ulrika Willem, and Thorsten Mauritsen. 2022. “The Changing Nature of Earth’s Reflected Sunlight.” Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 478 (2263), 20220053.
  • Hu, I-Kuan, Brian E. Mapes, Stefan N. Tulich, Richard B. Neale, Andrew Gettelman, and Kevin A. Reed. 2022. “Idealized Simulations of the Tropical Climate and Variability in the Single Column Atmosphere Model (SCAM): Radiative-Convective Equilibrium,” Journal of Advances in Modeling Earth Systems, 14 (2), e2021MS002826.
  • Harrop, Bryce E., Michael S. Pritchard, Hossein Parishani, Andrew Gettelman, Samson Hagos, Peter H. Lauritzen, L. Ruby Leung, Jian Lu, Kyle G. Pressel, and Koichi Sakaguchi. 2022. “Conservation of Dry Air, Water, and Energy in CAM and Its Potential Impact on Tropical Rainfall.” Journal of Climate, 35 (9), 2895–2917.
  • Ma, Po-Lun, Bryce E. Harrop, Vincent E. Larson, Richard B. Neale, Andrew Gettelman, Hugh Morrison, Hailong Wang, et al. 2022. “Better Calibration of Cloud Parameterizations and Subgrid Effects Increases the Fidelity of the E3SM Atmosphere Model Version 1.” Geoscientific Model Development, 15(7), 2881–2916.
  • Gettelman, Andrew, Alan J. Geer, Richard M. Forbes, Greg R. Carmichael, Graham Feingold, Derek J. Posselt, Graeme L. Stephens, Susan C. van den Heever, Adam C. Varble, and Paquita Zuidema. 2022. “The Future of Earth System Prediction: Advances in Model-Data Fusion.” Science Advances, 8 (14), eabn3488.