Skip Navigation

John Worden

Photo of John Worden


4800 Oak Grove Drive
M/S 233-300

Pasadena, CA 91109





Curriculum Vitae:

Click here


Click here

Member of:

Earth Science


My research interests include remote sensing of tropospheric trace gases and their use for investigating the global carbon and water cycles, atmospheric chemistry and their interactions.

Current Responsibilities:

  • Member of the Aura TES Science Team (TES Principal Investigator Emeritus)
  • Member of the OCO-2 Validation Team
  • Member GEOCAPE Working Group
  • TEMPO Mission Standing Review Board Science Lead


  • Ph.D. in Physics, University of Colorado (1996)
  • B.S. in Physics, University of California at Santa Cruz (1990)

Professional Experience

  • 2017 - Present: Research Scientist
  • 2016 – 2017: Section Manager for JPL Earth Sciences (329)
  • 2014 – 2016: Deputy Section Manager for JPL Earth Sciences (329)
  • 2010 – 2014: Principal Investigator (PI) for the NASA Aura TES project
  • 2007 – 2010: Deputy PI for the Aura TES project
  • 2007 – 2014: Group Supervisor for the Section 329 Tropospheric Sounding,                     Assimilation and Modeling Group
  • 2002 – 2007: Research Scientist, JPL
  • 2000 – 2002: Scientist, Raytheon ITSS: Pasadena
  • 19992000: Scientist, Atmospheric Environmental Research
  • 1997 – 1999: Postdoc, National Solar Observatory 

Community Service

  • Member of the Review Board for the NASA TEMPO project.
  • Review board for Netherlands Institute for Space Science - Earth Sciences.
  • Editor: Journal of Atmospheric Measurement Techniques

Research Interests

  • Remote sensing of tropospheric composition (Ozone, HDO/H2O, CH4, CO2, CO, PAN, OCS).
  • Processes controlling tropical convection
  • Role of anthropogenic emissions, land-use changes, and natural forcings on the global carbon and water cycles.
  • Dynamics and Chemistry of the North American and Asian Monsoons.

Selected Awards

  • NASA Group Achievement Award for Aura TES (2015, 2007, 2008, 2014)
  • Raytheon ITSS: Technical Achievement Award
  • Raytheon ITSS: TES Team Award

Selected Publications

Over 140 publications, H-Index of 42 in 2018. Selected publications below.

See for the most recent list of papers

  1. Yin, Y., Bowman, K. W., Bloom, A. A. & Worden, J. Detection of fossil fuel emission trends in the presence of natural carbon cycle variability. Environ. Res. Lett. 1-18 (2019). doi:10.1088/1748-9326/ab2dd7
  2. Jiang, Z. et al. Unexpected slowdown of US pollutant emission reduction in the past decade. Proceedings of the National academy of Sciences 118, 201801191 (2018).
  3. Worden, J. R. et al. Reduced biomass burning emissions reconcile conflicting estimates of the post-2006 atmospheric methane budget. Nat Commun 1-11 (2017). doi:10.1038/s41467-017-02246-0
  4. Wright, J. S. et al. Rainforest-initiated wet season onset over the southern Amazon. Proceedings of the National Academy of Sciences of the United States of America 114, 8481-8486 (2017).
  5. Zhao, B. et al. Decadal-scale trends in regional aerosol particle properties and their linkage to emission changes. Environ. Res. Lett. (2017). doi:10.1088/1748-9326
  6. Galewsky, J. et al. Stable isotopes in atmospheric water vapor and applications to the hydrologic cycle. Rev. Geophys. (2016). doi:10.1002/2015RG000512
  7. Verstraeten, W. W. et al. Rapid increases in tropospheric ozone production and export from China. Nature Geoscience (2015). doi:10.1038/ngeo2493
  8. Parazoo, N. C. et al. Influence of ENSO and the NAO on terrestrial carbon uptake in the Texas‐northern Mexico region. Global Biogeochemical Cycles (2015). doi:10.1002/2015GB005125
  9. Neu, J. L. et al. Tropospheric ozone variations governed by changes in stratospheric circulation. Nature Geoscience (2014). doi:10.1038/ngeo2138
  10. Worden, J. et al. El Nino, the 2006 Indonesian Peat Fires, and the distribution of atmospheric methane. Geophys. Res. Lett 40, 1 (2013).
  11. Frankenberg, C. et al. New global observations of the terrestrial carbon cycle from GOSAT: Patterns of plant fluorescence with gross primary productivity. Geophys. Res. Lett 38, L17706 (2011).
  12. Worden, J. et al. Importance of rain evaporation and continental convection in the tropical water cycle. Nature 445, 528-532 (2007).