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Xiaozhen Xiong (NASA)

Title: Research Scientist
Technical Focus Area: Atmospheric Composition, Chemistry & Dynamics
Study Topics: Air Quality, Climate Change


Dr. Xiaozhen (Shawn) Xiong is a research scientist within the Science Directorate of NASA Langley Research Center, and his major research interest is radiative transfer modeling and remote sensing, with a focus on the development of PCRTM model and the PCRTM-based retrieval algorithm, and to use the remote sensing to study the trace gases emission, transport and their impact to air quality and climate change. Prior to joining NASA in the summer of 2020, Dr. Xiong was a scientist supporting NOAA/NESDIS Center for Satellite Applications and Research (STAR), and the projects he has worked includin the calibration of Cross-track Infrared Sounder (CrIS) on S-NPP and Ozone Mapping and Profiler Suite (OMPS) on JPSS-1, development of radiative transfer model for data assimilation, and the retrieval of trace gases using AIRS, IASI and CrIS.


  • Zou, M., X. Xiong et al, 2020: Ozone Trends During 1979-2019 over Tibetan Plateau Derived from Satellite Observations, Front. Earth Sci., 06 October 2020,

  • Pan, C., B. Yan, C. Cao, L. Flynn, X. Xiong, E. Beach and L. Zhou, 2020: Performance of OMPS Nadir Profilers’ Sensor Data Records, IEEE Transactions on Geoscience and Remote Sensing,

  • Zou, M., X. Xiong et al, 2019: Increase of Atmospheric Methane Observed from Space-Borne and Ground-Based Measurements Remote Sens. 2019, 11(8), 964;

  • Xiong, X., Y.Han, Q.Liu, and F. Weng, 2016: Comparison of Atmospheric Methane Retrievals from AIRS and IASI, IEEE JSTARS,

  • Zou, M., X. Xiong et al., 2016: Intercomparison of Atmospheric Methane from AIRS and GOSAT TANSO-FTS Retrievals, AMT, 9, 3567-3576, 2016,

  • Li, S., Z. Ma, X. Xiong, D. Christiani, Z. Wang, Y. Liu, 2016: Satellite and Ground Observations of Severe Air Pollution Episodes in the Winter of 2013 in Beijing, China, Aerosol and Air Quality Research. 04/2016; 16:977–989.

  • Xiong, X. et al., 2014, Retrieval of Nitrous Oxide from Atmospheric Infrared Sounder: Characterization and Validation, J. Geophys. Res. Atmos., 119,

  • Xiong, X., Barnet, C. D., Maddy, E. and et al., 2013, Detection of Methane Depletion Associated with Stratospheric Intrusion by Atmospheric Infrared Sounder (AIRS), GEOPHYSICAL RESEARCH LETTERS, VOL. 40, Issue 10, Pages: 2455–2459,, 2013.

  • Xiong, X. et al., 2013, Mid-Upper Tropospheric Methane Retrieval from IASI and its Validation, Atmos. Meas. Tech., 6, 2255-2265,, 2013.

  • Xiong, X., Barnet, C.; Zhuang, Q.; Machida, T.; Sweeney, C.; Patra, P.K., 2010, Mid-upper Tropospheric Methane in the High Northern Hemisphere: Space-borne Observations by AIRS, Aircraft Measurements and Model Simulations, J. Geophys. Res., 115, D19309,

  • Xiong, X., S. Houweling, J. Wei, E. Maddy, F. Sun, C. D. Barnet, 2009, Methane Plume over South Asia during the Monsoon Season: Satellite Observation and Model Simulation, Atmos. Chem. Phys., 9, 783-794, 2009.

  • Xiong, X., C. Barnet, E. Maddy, C. Sweeney, X. Liu, L. Zhou, and M. Goldberg, 2008, Characterization and validation of methane products from the Atmospheric Infrared Sounder (AIRS), J. Geophys Res., 113, G00A01,

Education/Professional Experience:

  • Ph.D., University of Alaska Fairbanks

National/International Leadership:

  • Lead guest editor of Special Issue for Advances in Meteorology
  • Guest editor of Special Issue for Remote Sensing

Professional Memberships:

  • American Geophysical Union (AGU)
  • American Meteorological Society (AMS)

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