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 Tropospheric Composition: People
Jessica  Neu's Picture
Jet Propulsion Laboratory
M/S 233-200
4800 Oak Grove Drive
Pasadena, CA 91109

Jessica Neu
Aura TES Deputy Principal Investigator

Dr. Jessica Neu's research focuses on understanding what controls the chemical composition of the atmosphere at the regional and global scale and, ultimately, how atmospheric composition will change with and feed-back onto changes in other components of the climate system. She employs a hierarchy of models of varying complexity in combination with measurements from both satellite remote sensing and in situ instruments, and her work encompasses a wide variety of techniques, including theoretical studies, numerical modeling, and analysis of observational data to address these issues. Her work has recently evolved to include data assimilation and adjoint modeling techniques to facilitate model-measurement intercomparison as well as Observing System Simulation Experiments to define science objective-based requirements for future satellite missions.

  • B. S., Meteorology, Texas A&M University (1991-1995)
  • Ph.D., Atmospheric Sciences, Massachusetts Institute of Technology (1995-2001)

Research Interests
  • Processes controling the abundance of O3 in the troposphere, at scales ranging from plumes to clouds to weather systems to the global circulation.
  • Coupling and feedbacks between air quality and climate through radiation, temperature, and transport.
  • Importance of the stratosphere in tropospheric climate and composition, including the role of stratospheric ozone in the tropospheric ozone budget, both directly through stratosphere-troposphere exchange and indirectly through the radiation budget
  • Development of integrated analysis strategies for using measurements to test and improve models
  • Applications of multi-spectral satellite measurements for air quality studies.


Geo-Cape Icon Geo-Cape
Geostationary Coastal and Air Pollution Events

MLS - Microwave Limb Sounder Icon MLS - Microwave Limb Sounder
The Microwave Limb Sounder (MLS) experiments measure naturally-occurring microwave thermal emission from the limb (edge) of Earth's atmosphere to remotely sense vertical profiles of atmospheric gases, temperature, pressure, and cloud ice.

TES (Tropospheric Emission Spectrometer) is one of four science instruments aboard NASA's Aura satellite, which was launched from Vandenberg Air Force Base, California on July 15, 2004.

Professional Experience
  • Jet Propulsion Laboratory (2009-Present)
    • Atmospheric Composition Discipline Program Manager (2016-present)
    • Deputy Principle Investigator, Aura Tropospheric Emission Spectrometer (2014-Present)
    • Tropospheric Emission Spectrometer (TES) project (2009-Present)
    • Microwave Limb Sounder (MLS) project (2009-Present)
    • JPL lead for the GEO-CAPE project (2010-Present)
  • University of California, Irvine, Earth System Science Department (2004-2009)
    • Research Scientist (2007-2009)
    • Postdoctoral Scholar (2004-2007)
  • National Oceanic and Atmospheric Administration, Climate Monitoring and Diagnostics Laboratory (now Global Monitoring Division), National Research Council Research Associate (2002-2004)
  • Harvard University, Department of Earth and Planetary Sciences, Postdoctoral Associate (2002)
  • MIT, Department of Earth, Atmospheric, and Planetary Sciences, Postdoctoral Associate (2001)

Selected Awards
  • NASA Exceptional Achievement Medal for "ground-breaking quantification of the role of stratospheric ozone on tropospheric ozone variability using Aura TES and MLS data" (2014)
  • NASA Group Achievement Award, SOLVE Science Team (2001), TES Team (2014), MLS Team (2014)
  • Outstanding Student Paper Award, American Meteorological Society 11th Conference on the Middle Atmosphere (January 2000)

    Selected Publications
    1. Shi, H., Z. Jiang, B. Zhao, Z. Li, Y. Chen, Y. Gu, J. H. Jiang, M. Lee, K.‐N. Liou, J. L. Neu, V. H. Payne, H. Su, Y. Wang, M. Witek, and J. Worden (2019), Modeling study of the air quality impact of record‐breaking Southern California wildfires in December 2017, J. of Geophys. Res.: Atmos., 124, 6554- 6570,
    2. Tarasick, D., et al. (2019), Tropospheric Ozone Assessment Report: Tropospheric ozone from 1877 to 2016, observed levels, trends and uncertainties, Elem Sci Anth, 7(1), p.39,
    3. Linz, M., M. Abalos, A. S. Glanville, D. E. Kinnison, A. Ming, and J. L. Neu (2019), The global diabatic circulation of the stratosphere as a metric for the Brewer-Dobson circulation, Atmos. Chem. and Phys., 19, 5069-5090,
    4. Gaudel, A. et al. (2018), Tropospheric Ozone Assessment Report: Present-day distribution and trends of tropospheric ozone relevant to climate and global atmospheric chemistry model evaluation, Elem Sci Anth, 6(1), p.39. DOI:
    5. Naik, V. et al. (2018), Tropospheric Ozone Assessment Report: Assessment of global-scale model performance for global and regional ozone distributions, variability, and trends, Elem. Sci. Anth, 2018;6(1):10. doi:10.1525/elementa.265.
    6. Linz, M., R. A. Plumb, E. P. Gerber, F. J. Haenel, G. Stiller, D. E. Kinnison, A. Ming, J. L. Neu (2017), The strength of the meridional overturning circulation of the stratosphere, Nature Geosci., 10, 663-667, doi:10.1038/ngeo3013.
    7. Cady-Pereira. K. E., V. H. Payne, J. L. Neu, K. W. Bowman, K. Miyazaki, E. A. Marais, S. Kulawik, Z. A. Tzompa-Sosa, J. D. Hegarty (2017), Seasonal and Spatial Changes in Trace Gases over Megacities from Aura TES Observations: Two Case Studies, Atmos. Chem. Phys, 17, 9379-9398, doi:10.5194/acp-17-9379-2017.
    8. Payne, V. H., J. L., Neu, and H. M., Worden (2017), Satellite observations for understanding the drivers of variability and trends in tropospheric ozone, J. Geophys. Res. Atmos., 122, doi:10.1002/2017JD026737.
    9. Santee, M. L., G. L. Manney, N. J. Livesey, M. J. Schwartz, J. L. Neu, and W. G. Read (2017), A comprehensive overview of the climatological composition of the Asian summer monsoon anticyclone based on 10 years of Aura Microwave Limb Sounder measurements, J. Geophys. Res. Atmos., 122, doi:10.1002/2016JD026408.
    10. Verstraeten, W. M., J. L. Neu , K. F. Boersma, J. E. Williams, K. W. Bowman, and J. R. Worden (2015), Rapid increases in tropospheric ozone production and export from China: The view from Aura, Nature Geosci., 8, 690-695, doi:10.1038/ngeo2493.
    11. Neu, J. L., T. Flury, G. L. Manney, M. L. Santee, N. J. Livesey, and J. Worden (2014), Tropospheric ozone variations governed by changes in stratospheric circulation, Nature Geosci., 7, 340-344, doi:10.1038/ngeo2138.
    12. Neu, J. L., M. I. Hegglin, S. Tegtmeier, A. Bourassa, D. Degenstein, L. Froidevaux, R. Fuller, B. Funke, J. Gille, A. Jones, A. Rozanov, M. Toohey, T. von Clarmann, K. A. Walker, and J. R. Worden (2014): The SPARC Data Initiative: Comparison of upper troposphere / lower stratosphere ozone climatologies from limb-viewing instruments and the nadir-viewing Tropospheric Emission Spectrometer (TES), J. Geophys. Res., 119, 6971-6990, doi:10.1002/2013JD020822.
    13. Tegtmeier, S., M. I. Hegglin, J. Anderson, A. Bourassa, S. Brohede, D. Degenstein, L. Froidevaux, R. Fuller, B. Funke, J. Gille, A. Jones, Y. Kasai, K. Kruger, E. Kyrola, G. Lingenfelser, J. Lumpe, B. Nardie, J. L. Neu, D. Pendelbury, E. Remsburg, A. Rozanov, L. Smith, M. Toohey, J. Urban, T. von Clarmann, K. A. Walker, and R. H. J. Wang (2013): The SPARC Data Initiative: A comparison of ozone climatologies from international limb satellite sounders, J. Geophys. Res., 118, 12,229-12,247 doi:10.1002/2013JD019877.
    14. Toohey, M., M. I. Hegglin, S. Tegtmeier, J. Anderson, J. A. Anel, A. Bourassa, S. Brohede, D. Degenstein, L. Froidevaux, R. Fuller, B. Funke, J. Gille, A. Jones, Y. Kasai, K. Kruger, E. Kyrola,, J. L. Neu, A. Rozanov, L. Smith, J. Urban, T. von Clarmann, K. A. Walker, and R. H. J. Wang (2013): Characterizing sampling bias in the trace gas climatologies of the SPARC Data Initiative, J. Geophys. Res., 118, 11,847-11,862, doi:10.1002/jgrd.50874.
    15. Neu, J. L., and M. J. Prather (2012): Toward a more physical representation of precipitation scavenging in global chemistry models: cloud overlap and ice physics and their impact on tropospheric ozone, Atmos. Chem. Phys., 12, 3289-3310, doi:10.5194/acp-12-3289-2012.
    16. Li, K.-F., B. Tian, D. E. Waliser, M. J. Schwartz, J. L. Neu, J. R. Worden, and Y. L. Yung (2012), Vertical structure of MJO-related subtropical ozone variations from MLS, TES, and SHADOZ data, Atmos. Chem. Phys., 12, 425-436.
    17. Lamarque, J.-F., Emmons, L. K., Hess, P. G., Kinnison, D. E., Tilmes, S., Vitt, F., Heald, C. L., Holland, E. A., Lauritzen, P. H., Neu, J., Orlando, J. J., Rasch, P., and Tyndall, G. (2012): CAM-chem: description and evaluation of interactive atmospheric chemistry in CESM, Geosci. Model Dev., 5, 369-411, doi:10.5194/gmd-5-369-2012.
    18. Fishman, J, LT Iraci,, J Al-Saadi, K Chance, F Chavez, M Chin, P Coble, C Davis, P DiGiacomo, D Edwards, A Eldering, J Goes, J Herman, C Hu, D Jacob, C Jordan, SR Kawa, R Key, X Liu, S Lohrenz, A Mannino, V Natraj, D Neil, J Neu, M Newchurch, K Pickering, J Salisbury, H Sosik, A Subramaniam, M Tzortziou, J Wang, M Wang (2012), The United States' Next Generation of 1 Atmospheric Composition and Coastal Ecosystem Measurements: NASA's Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission, Bull. Amer. Met. Soc., 93,1547-1566, doi:10.1175/BAMS-D-11-00201.1.
    19. Neu, J. L., S. Strahan, P. Braesicke, A. Douglass, P. Huck. L. Oman, D. Pendlebury, and S. Tegtmeier, Chapter 5: Transport, in SPARC CCMVal (2010), SPARC Report on the Evaluation of Chemistry-Climate Models, V. Eyring, T. G. Shepherd, D. W. Waugh (Eds.), SPARC Report No. 5, WCRP-132, WMO/TD-No. 1526.
    20. Prather, M. J., X. Zhu, Q. Tang, J. Hsu, and J. L, Neu (2011), An Atmospheric Chemist in Search of the Tropopause, J. Geophys. Res., 116, D04306, doi:10.1029/2010JD014939.
    21. Boxe, C.S., J. R. Worden, K.W. Bowman, S. S. Kulawik, J. L. Neu, et al.(2010), Validation of northern latitude Tropospheric Emission Spectrometer stare ozone profiles with ARC-IONS sondes during ARCTAS, Atmos. Chem. Phys., 10, 9901-9914, doi:10.5194/acp-10-9901-2010.
    22. Neu, J. L., M. J. Lawler, M. J. Prather, E. S. Saltzman (2008), Oceanic alkyl nitrates as a natural source of tropospheric ozone, Geophys. Res. Lett., 35, L13814, doi: 10.1029/2008GL034189.
    23. Neu, J. L., M. J. Prather, and J. E. Penner (2007), Global atmospheric chemistry: integrating over fractional cloud cover, J. Geophys. Res., 112, D11306, doi: 10.1029/2006JD008007.
    24. Neu, J. L., L. C. Sparling, and R. A. Plumb (2003), Variability of the subtropical "edges" in the stratosphere, J. Geophys. Res., 108, D15, doi: 10.1029/2002JD002706. Plumb, R. A., W. Heres, J. L. Neu, N. M. Mahowald, J. del Corral, G. C. Toon, E. Ray, F. Moore, and A. E. Andrews (2002), Global tracer modeling during SOLVE: high latitude descent and mixing, J. Geophys. Res., SOLVE Special Issue, 108, D5, doi:10.1029/2001JD001023.
    25. Neu, J. L., and R. A. Plumb (1999), Age of air in a "leaky pipe" model of stratospheric transport, J. Geophys. Res., 104, D16, pp. 19243-19255.

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