Hanli Liu
Associate Professor Ajunct
liuh@ucar.edu

Focus Area

Remote Sensing, Earth, & Space Sciences

Education

Ph.D., Atmospheric and Space Sciences, The University of Michigan, 1996.

B.S., Fluid Mechanics, University of Science and Technology of China, 1989.

Professional Experiences

2006–Present, Scientist III, National Center for Atmospheric Research, High Altitude Observatory.

2007-Present     Adjunct Associate Professor, Aerospace Engineering Sciences, University of Colorado, Boulder.

2006-Present     Associate Editor, Journal of Geophysical Research-Space Physics.

2004-Present     Visiting Professor, Key Laboratory for Space Weather, Chinese Academy of Sciences, China.

2004-2007         Faculty Affiliate, Physics Department, Colorado State University.

2003–2006, Scientist II, National Center for Atmospheric Research, High Altitude Observatory.

1999–2003, Scientist I, National Center for Atmospheric Research, High Altitude Observatory.

1997–1999, Postdoctoral Visitor, National Center for Atmospheric Research, High Altitude Observatory.

Awards (selected)

Nominated for NCAR Scientific and Technical Advancement Award, 2007.

Nominated for NCAR Outstanding Publication Award, 2004.

NCAR/HAO Postdoctoral Research Fellowship, 1997-1999.

Research Interests

The theoretical, numerical, and interpretive studies of the dynamics, structure, and solar/terrestrial responses of the Earth's middle and upper atmosphere, with special emphasis on modeling physical and chemical processes on both global and local scales, and the nonlinear couplings of the global and local scale processes and different regions of the atmosphere. Geophysical turbulence and self-organized critical phenomena in geophysics.

Publications (selected)

Liu, H.-L., F. Sassi, and R. R. Garcia, Error growth in a whole atmosphere climate model, J. Atmos. Sci., 66, 173-186, 2009.

Tian, F., J. Kasting, H.-L. Liu, and R. G. Roble, Hydrodynamic planetary thermosphere model. I: The response of the Earth’s thermosphere to extreme solar EUV conditions and the significance of adiabatic cooling, J. Geophys. Res.-Planetary, 113, E05008, 2008.

Deng, Y., A. D. Richmond, A. J. Ridley, and H.-L. Liu, Assessment of the non-hydrostatic effect on the upper atmosphere using a general circulation model (GCM), Geophys. Res. Lett., 35, L01104, 2008.

Liu, H.-L., T. Li, C.-Y. She, J. Oberheide, Q. Wu, M. E. Hagan, J. Xu, R. G. Roble, M. G. Mlynczak, J. M. Russell III, Comparative study of short term tidal variability, J. Geophys. Res., 112, 2007.

Liu, H.-L., On the large wind shear and fast meridional transport above the mesopause, Geophys. Res. Lett., 34, L08815, 2007.

Liu, H.-L., Spectral properties of one-dimensional diffusive systems subject to stochastic forcing, J. Atmos. Sci., 64, 579-593, 2007.

Xu, J., H.-L. Liu, W. Yuan, A. K. Smith, R. G. Roble, C. J. Mertens, J. M. Russell III, and M. G. Mlynczak, Mesopause structure from TIMED/SABER observations , J. Geophys. Res. (Atmosphere), 112, D09102, 2007.

Oberheide, J., H.-L. Liu, O. A. Gusev, and D. Offermann, Mesospheric surf zone and temperature inversion layers in early November 1994, J. Atmos. Solar Terr. Phys.,  68, 1752-1763, 2006.

Liu, H.-L., and R. G. Roble, Dynamical coupling of the stratosphere and mesosphere in the 2002 Southern Hemisphere major stratospheric sudden warming, Geophys. Res. Lett., 32, L13804, 2005.

Liu, H.-L., and R. G. Roble, Dynamical processes related to the atomic oxygen equinox transition, J. Atmos. Solar Terr. Phys., 66, 769-779, 2004.

Liu, H.-L., E. R. Talaat, R. G. Roble, R. S. Lieberman, and D. M. Riggin, 6.5-Day wave and its seasonal variability in the middle and upper atmosphere, J. Geophys. Res., 109, D21112, doi:10.1029/2004JD004795, 2004.

Liu, H.-L., and R. G. Roble, A study of a self-generated stratospheric sudden warming and its mesospheric/lower thermospheric impacts using coupled TIME-GCM/CCM3, J. Geophys. Res., 107, 4695, doi:10.1029/2001JD001533, 2002.

Liu, H.-L., P. Charbonneau, A. Pouquet, T. J. Bogdan, and S. W. McIntosh, Continuum analysis of an avalanche model for solar flares, doi:10.1103, Phys. Rev. E., 66, 056111, 2002.

Sassi, F., R. Garcia, B. Boville, and H.-L. Liu, On temperature inversions and the mesospheric surf zone, J. Geophys. Res., 107, 4380, doi:10.1029/2001JD001525, 2002.

Charbonneau, P., S. W. McIntosh, H.-L. Liu, and T. J. Bogdan, Avalanche models for solar flares, Solar Phys., 203, 321-353, 2001.

Liu, H.-L., M. E. Hagan, and R. G. Roble, Local mean state changes due to gravity wave breaking modulated by diurnal tide, J. Geophys. Res., 105, 12,381-12,396, 2000.

Liu, H.-L., Temperature changes due to gravity wave saturation, J. Geophys. Res., 105, 12,329-12,336, 2000.