Hongyu Liu
Research Fellow, National Institute of Aerospace, Chemistry and Dynamics Branch, Science Directorate, NASA Langley Research Center
About
Hongyu Liu has over twenty-five years of experience in studying tropospheric ozone, cloud effects on composition, aerosol transport and wet scavenging using global atmospheric composition models (GEOS-Chem CTM, GEOSCCM) in conjunction with ground-based, aircraft and satellite observations. He participated in the NASA TRACE-P and EVS-2 NAAMES missions, and is a member of the EVS-3 ACTIVATE mission science team. He has served as PI for several projects funded by the NASA ACMAP, MAP, and ACCDAM programs to study ozone sources and transport in Asia, investigate cloud radiative effects on photochemistry, constrain model aerosol scavenging parameterizations with radionuclide tracer observations, and develop physics-based scavenging parameterizations in the NASA GEOS model. He has also been involved in the modeling studies of the Asian Tropopause Aerosol Layer (ATAL) and Hunga Tonga volcanic aerosol and water vapor over recent years.
Publication Bibliography
Select Publications
- Liu, H., Zhang, B., Moore, R. H., Ziemba, L. D., Ferrare, R. A., Choi, H., Sorooshian, A., Painemal, D., Wang, H., Shook, M. A., Scarino, A. J., Hair, J. W., Crosbie, E. C., Fenn, M. A., Shingler, T. J., Hostetler, C. A., Chen, G., Kleb, M. M., Luo, G., Yu, F., Vaughan, M. A., Hu, Y., Diskin, G. S., Nowak, J. B., DiGangi, J. P., Choi, Y., Keller, C. A., and Johnson, M. S.: Tropospheric aerosols over the western North Atlantic Ocean during the winter and summer deployments of ACTIVATE 2020: life cycle, transport, and distribution, Atmos. Chem. Phys., 25, 2087–2121, 2025. https://doi.org/10.5194/acp-25-2087-2025
- Fairlie, T. D., H. Liu, J.-P., Vernier, P., Campuzano‐Jost, J.L. Jimenez, D.S. Jo, B. Zhang, M. Natarajan, M.A. Avery, and G. Huey: Estimates of regional source contributions to the Asian Tropopause Aerosol Layer using a chemical transport model, J. Geophys. Res., 125, e2019JD031506, 2020. https://doi.org/10.1029/2019JD031506
- Liu, H., D.B. Considine, L.W. Horowitz, J.H. Crawford, J.M. Rodriguez, S.E. Strahan, M.R. Damon, S.D. Steenrod, X. Xu, J. Kouatchou, C. Carouge, and R.M. Yantosca: Using beryllium-7 to assess cross-tropopause transport in global models, Atmos. Chem. Phys., 16, 4641-4659, 2016. https://doi.org/10.5194/acp-16-4641-2016
- Liu, H., J.H. Crawford, R.B. Pierce, P. Norris, S.E. Platnick, G. Chen, J.A. Logan, R.M. Yantosca, M. Evans, C. Kittaka, Y. Feng, and X. Tie: Radiative effect of clouds on tropospheric chemistry in a global three-dimensional chemical transport model, J. Geophys. Res., 111(D20303), 2006. https://doi.org/10.1029/2005JD006403
- Liu, H., D.J. Jacob, I. Bey, and R.M. Yantosca: Constraints from Pb-210 and Be-7 on wet deposition and transport in a global three-dimensional chemical tracer model driven by assimilated meteorological fields, J. Geophys. Res., 106, 12,109-12,128, 2001. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2000JD900839
Notable Awards
- NASA Group Achievement Award (EVS-3 ACTIVATE Mission), 2023.
- NASA LaRC Henry J.E. Reid Group Award (with R. Ferrare et al.), 2023.
- Bo Walkley Best Research Publication Winner (with B. Zhang), NIA, 2021.
- NASA Group Achievement Award (EVS-2 NAAMES Mission), 2019.
- NASA Group Achievement Award (BATAL campaign), 2019.
Education / Professional Experience
- 2016-Present, Research Fellow, National Institute of Aerospace (NIA)
- 2003-2016, Staff Scientist / Sr. Res. Scientist / Assoc. Res. Fellow, NIA
- 2005-2006, Visiting Scientist, GFDL/NOAA
- 2003, PhD, Geophysics, Harvard University
- 1998, PhD, Hong Kong Polytechnic University
- 1993, MSc, Atmospheric Physics, Peking University
- 1990, BSc, Atmospheric Physics, Peking University
Professional Memberships
- American Geophysical Union (AGU)
- American Meteorological Society (AMS)