climate scientist

  • about

    I am interested in better understanding how our Earth will respond to increased greenhouse gases. My research involves estimating the rate of warming in the atmosphere as measured from satellite observations. I then compare these observations with global climate models that are used to project future changes in climate.

    I also look for ways to apply my skills toward other global problems and am particularly interested in global health and food security. I have been an active participant in science education and outreach and enjoy getting kids interested in science and helping the public learn about climate change.

  • research interests

    • Reconciling differences between satellite microwave estimates of tropical tropospheric warming
    • Tropical tropospheric amplification in global climate models and satellite observations
    • Climate sensitivity and feedbacks
    • Food security
  • media

The interaction between sea surface temperature and the atmosphere

April 2015: EOS coverage of our study on the role of the warming of the west Pacific in warming the tropical troposphere.

Reconciling satellite temperature trends

March 2015: Guardian coverage of our study working toward reconciling tropical atmospheric temperature trends.


  • download cv
  • publications

    2017 Santer, B. D., S. Solomon, G. Pallotta, C. Mears, S. Po-Chedley, Q. Fu, F. Wentz, C.-Z. Zou, J. Painter, I. Cvijanovic, and C. Bonfils: Comparing tropospheric warming in climate models and satellite data.” J. Clim., (in press), doi: 10.1175/JCLI-D-16-0333.1. [Guardian Coverage]
    2015 Po-Chedley, Stephen, Tyler J. Thorsen, and Qiang Fu: “Removing diurnal cycle contamination in satellite-derived tropospheric temperatures: Understanding tropical tropospheric trend discrepancies.” J. Clim., 28 (6), 2274 - 2290, doi: 10.1175/JCLI-D-13-00767.1. [Guardian Coverage]
    2014 Flannaghan, T. J., S. Fueglistaler, I. M. Held, S. Po-Chedley, B. Wyman, and M. Zhao, 2014: “Tropical temperature trends in Atmospheric General Circulation Model simulations and the impact of uncertainties in observed SSTs.” J. Geophys. Res., 119, 13,327 - 13,337, doi: 10.1002/2014JD022365. [EOS Summary]
    2013 Po-Chedley, Stephen and Qiang Fu, 2013: “Reply to Comments on ‘A bias in the mid-tropospheric channel warm target factor on the NOAA-9 microwave sounding unit.’” J. Atm. Oceanic Techol., 30 (5), 1014 - 1020, doi: 10.1175/JTECH-D-12-00131.1.
    2012 Po-Chedley, Stephen and Qiang Fu, 2012: “Discrepancies in tropical upper tropospheric warming between atmospheric circulation models and satellites.” Environ. Res. Lett., 7, 044018 (8pp), doi: 10.1088/1748-9326/7/4/044018. [ERL Summary]
    Po-Chedley, Stephen and Qiang Fu, 2012: “A bias in the mid-tropospheric channel warm target factor on the NOAA-9 microwave sounding unit.” J. Atm. Oceanic Techol., 29 (5), 646-652, doi: 10.1175/JTECH-D-11-00147.1. [UW Today]
    In prep./
    Siler, Nicholas, S. Po-Chedley, Bretherton, C. 2016: "An observational constraint on the global cloud feedback," Climate Dynamics, under review.
    Ding, Q., A. Schweiger, M. L'Heureux, D. S. Battisti, S. Po-Chedley, N. C. Johnson, E. B. Wrigglesworth, Q. Zhang, K. Harnos, R. Eastman, E. J. Steig, 2016: "Influence of the recent high-latitude atmospheric circulation change on summertime Arctic sea ice," Nature Climate Change, under review.
    Santer, B. D. et al, 2016: "Model Expectations and Reality: The Case of Tropospheric Warming," under review.
    Bilinski, Alyssa, E. Birru, M. Peckarsky, M. Herce, N. Kalanga, C. Neumann, G. Bronson, S. Po-Chedley, C. Kachimanga, R. McBain, and J. Keck, 2016: “Distance to care, enrollment and loss to follow- up of HIV patients during decentralization of antiretroviral therapy in Neno District, Malawi: A retrospective cohort," in prep.




  • Department of Atmospheric Sciences
    University of Washington
    Box 351640
    ATG 408 | 4000 15th Ave NE
    Seattle, WA 98115
  • ATG 324
  • pochedls@uw.edu