I was born 1984 in Xi'an, China and came to UCLA to study space physics. Now I live with my wife and son in Los Angeles.
- Ph.D. in Space Physics, University of California, Los Angeles, Oct. 2013
- M.S. in Space Physics, University of California, Los Angeles, Jun. 2010
- B.S. in Space Physics, Peking University, Jul. 2007
- Professional Activities
- Principle Investigator for NASA's Heliophysics Guest Investigator program.
- Chair and Convener for AGU Fall meeting sessions.
- Referee for Nature Physics, Journal of Geophysical Research - Space Physics, Geophysical Research Letters, Annales Geophysicae, Advances in Space Research, Planetary and Space Science, Science China Earth Sciences, and NASA H-GI proposals.
- A Tohban (duty officer) of NASA's THEMIS mission
My research interest expands through the entire Earth's magnetosphere. My research focuses on transient energy carriers at dayside magnetopause and in the magnetotail, especially their role in global energy transport during geomagnetic storms and substorms. I investigate this subject using data from THEMIS and Van Allen Probes missions.
In addition, I also design binning logic for the Energetic Particle Detector on the Electron Losses and Fields Investigation (ELFIN) CubeSat and participate in JUNO and Europa Clipper missons.
I enjoy reading comic books, playing video games, and building model kits. Building model kits is an art; finished kits are pieces of art instead of toys. My training in fine art 20 years ago allows me to be a proficient model kit builder.
Liu, J., V. Angelopoulos, X.-J. Zhang, D. L. Turner, C. Gabrielse, A. Runov, J. Li, H. O. Funsten, and H. E. Spence (2016), Dipolarizing flux bundles in the cis-geosynchronous magnetosphere: Relationship between electric fields and energetic particle injections, J. Geophys. Res. Space Physics, 121, 1362-1376, doi:10.1002/2015JA021691.
Yao, Z. H., J. Liu, et al. (2015), A physical explanation for the magnetic decrease ahead of dipolarization fronts, Ann. Geophys., 33, 1301-1309, doi:10.5194/angeo-33-1301-2015.
Artemyev, A. V., J. Liu, V. Angelopoulos, and A. Runov (2015), Acceleration of ions by electric field pulses in the inner magnetosphere, J. Geophys. Res. Space Physics, 120, 4628-4640, doi:10.1002/2015JA021160.
Liu, J., V. Angelopoulos, X.-Z. Zhou, Z. H. Yao and A. Runov (2015), Cross-Tail Expansion of Dipolarizing Flux Bundles, J. Geophys. Res. Space Physics, 120, 2516-2530, doi:10.1002/2015JA020997.
Liu, J., V. Angelopoulos, X. Chu, X.-Z. Zhou, and C. Yue (2015), Substorm current wedge composition by wedgelets, Geophys. Res. Lett., 42, 1669-1676, doi:10.1002/2015GL063289.
Li, S.-S., J. Liu, V. Angelopoulos, A. Runov, X.-Z. Zhou, and S. A. Kiehas (2014), Antidipolarization fronts observed by ARTEMIS, J. Geophys. Res. Space Physics, 119, 7181-7198, doi:10.1002/2014JA020062.
Liu, J., V. Angelopoulos, X.-Z. Zhou, and A. Runov (2014), Magnetic flux transport by dipolarizing flux bundles, J. Geophys. Res. Space Physics, 119, 909-926, doi:10.1002/2013JA019395.
Liu, J., V. Angelopoulos, X.-Z. Zhou, A. Runov, and Z. H. Yao (2013), On the role of pressure and flow perturbations around dipolarizing flux bundles, J. Geophys. Res. Space Physics, 118, 7104-7118, doi:10.1002/2013JA019256.
Liu, J., V. Angelopoulos, A. Runov, and X.-Z. Zhou (2013), On the current sheets surrounding dipolarizing flux bundles in the magnetotail: the case for wedgelets, J. Geophys. Res. Space Physics, 118, 2000-2020, doi:10.1002/jgra.50092.
Liu, J., C. Gabrielse, V. Angelopoulos, N. A. Frissell, L. R. Lyons, J. P. McFadden, J. Bonnell, and K. H. Glassmeier (2011), Superposed epoch analysis of magnetotail flux transport during substorms observed by THEMIS, J. Geophys. Res., 116, A00I29, doi:10.1029/2010JA015886.
Liu, J., V. Angelopoulos, M. Kubyshkina, J. McFadden, K.-H. Glassmeier, and C. T. Russell (2011), Revised timing and onset location of two isolated substorms observed by Time History of Events and Macroscale Interactions During Substorms (THEMIS), J. Geophys. Res., 116, A00I17, doi:10.1029/2010JA015877.
Ivanova, V., J. Liu, S Kiehas, V Semenov, H Biernat (2009), Inverse reconstruction technique based on time-dependent Petschek-type reconnection model: first application to THEMIS magnetotail observations, Ann. Geophys., 27, 4369-4377, doi:10.5194/angeo-27-4369-2009.
Liu, J., Angelopoulos, V., Frey, H., McFadden, J., Larson, D., Glassmeier, K., Mende, S., Russell, C. T., Rae, I. J., Murphy, K. R., and Apatenkov, S. (2009), THEMIS observation of a substorm event on 04:35, 22 February 2008, Ann. Geophys., 27, 1831-1841, doi:10.5194/angeo-27-1831-2009.
Liu, J., V. Angelopoulos, D. Sibeck, T. Phan, Z. Y. Pu, J. McFadden, K. H. Glassmeier, and H. U. Auster (2008), THEMIS observations of the dayside traveling compression region and flows surrounding flux transfer events, Geophys. Res. Lett., 35, L17S07, doi:10.1029/2008GL033673.
My full publication list is here.