Mike Liemohn

Associate Professor

Department of Atmospheric, Oceanic and Space Sciences, College of Engineering, University of Michigan

Magnetosphere-Solar Wind Research Activities

Magnetosphere-Solar Wind Research ActivitiesI have studied both the natural relativistic electron environment, particularly in its relationship to the ring current and plasmasphere, as well as artificially-created ones via beam injection.  All of this work has been with simulations of electron transport in the inner magnetosphere.

Publications on the magnetosphere-solar wind interaction


Liemohn, M. W., J.-C. Zhang, M. F. Thomsen, J. E. Borovsky, J. U. Kozyra, and R. Ilie, Superstorms at geosynchronous orbit:  how different are they?, Geophys. Res. Lett., 35, L06S06, doi: 10.1029/2007GL031717, 2008. 


Zhang, J.-Ch., M. W. Liemohn, D. L. De Zeeuw, J. E. Borovsky, A. J. Ridley, S. Sazykin, M. F. Thomsen, J. U. Kozyra, T. I. Gombosi, and R. A. Wolf, Understanding storm-time ring current sources through data-model comparisons of a moderate storm, J. Geophys. Res., 112, A04208, doi: 10.1029/2006JA011846, 2007. 


Liemohn, M. W., Introduction to the GEM Inner Magnetosphere/Storms Assessment Challenge, J. Geophys. Res., 111. A11S01, doi: 10.1029/2006JA011970, 2006. 

Zhang, J.-Ch., M. W. Liemohn, M. F. Thomsen, J. U. Kozyra, M. H. Denton, and J. E. Borovsky, A statistical comparison of hot-ion properties at geosynchronous orbit during intense and moderate geomagnetic storms at solar maximum and minimum, J. Geophys. Res., 111, A07206, doi: 10.1029/2005JA011559, 2006. 

Denton, M. H., J. E. Borovsky, R. M. Skoug, M. F. Thomsen, B. Lavraud, M. G. Henderson, R. L. McPherron, J. C. Zhang, and M. W. Liemohn, Geomagnetic storms driven by ICME- and CIR-dominated solar wind, J. Geophys. Res., 111, A07S07, doi: 10.1029/2005JA011436, 2006. 

Zhang, J.-C., M. W. Liemohn, J. U. Kozyra, M. F. Thomsen, H. A. Elliott, and J. Weygand, A statistical comparison of solar wind sources of moderate and intense geomagnetic storms at solar minimum and maximum, J. Geophys. Res., 111, A01104, doi: 10.1029/2005JA011065, 2006. 


Moore, T. E., M.-C. Fok, M. O. Chandler, S.-H. Chen, S. P. Christon, D. C. Delcourt, J. Fedder, M. Liemohn, W. K. Peterson, and S. Slinker, Solar and ionospheric plasmas in the ring current, Inner Magnetosphere Interactions:  New Perspectives from Imaging, AGU Monogr. Ser., vol. 159, ed. by J. L. Burch, M. Schulz, and H. Spence, p. 179, Am. Geophys. Un., Washington, D. C., 2005. 

Denton, M. H., M. F. Thomsen, H. Korth, S. Lynch, J.-Ch. Zhang, and M. W. Liemohn, Bulk plasma properties at geosynchronous orbit, J. Geophys. Res., 110, A07223, doi: 10.1029/2004JA010861, 2005. 

Siscoe, G. L., R. L. McPherron, M. W. Liemohn, A. J. Ridley, and G. Lu, Reconciling prediction algorithms for Dst, J. Geophys. Res., 110, A02215, doi: 10.1029/2004JA010465, 2005. 

Moore, T. E., M.-C. Fok, M. O. Chandler, C. R. Chappell, S. Christon, D. Delcourt, J. Fedder, M. Huddleston, M. Liemohn, W. Peterson, S. P. Slinker, Plasma sheet and (non-storm) ring current formation from solar and polar wind sources, J. Geophys. Res., 110, A02210, doi: 10.1029/2004JA010563, 2005. 


Zhang, J.-Ch., M. W. Liemohn, J. U. Kozyra, B. J. Lynch, and T. H. Zurbuchen, A statistical study on the geoeffectiveness of near-Earth magnetic clouds during high solar activity years, J. Geophys. Res., 109, A09101, doi: 10.1029/2004JA010410, 2004. 


Kozyra, J. U., and M. W. Liemohn, Ring current energy input and decay, Space Sci. Rev, 109, 105, 2003. 

Daglis, I. A., J. U. Kozyra, Y. Kamide, D. Vassiliadis, A. S. Sharma, M. W. Liemohn, W. D. Gonzalez, B. T. Tsurutani, and G. Lu, Intense space storms: Critical issues and open disputes, J. Geophys. Res., 108(A5), 1208, doi: 10.1029/2002JA009722, 2003.  

Posner, A., M. W. Liemohn, and T. H. Zurbuchen, Upstream magnetospheric ion flux tube within a magnetic cloud: Wind/STICS, Geophys. Res. Lett., 30(6), 1346, doi: 10.1029/2002GL016116, 2003. 


Liemohn, M. W., and A. J. Ridley, Comment on "Nonlinear response of the polar ionosphere to large values of the interplanetary electric field" by C. T. Russell et al., J. Geophys. Res., 107(A12), 1460, doi: 10.1029/2002JA009440, 2002. 

O'Brien, T. P., R. L. McPherron, and M. W. Liemohn, Continued convection and the initial recovery of Dst, Geophys. Res. Lett., 29(23), 2143, doi: 10.1029/2002GL015556, 2002. 

Kozyra, J. U., M. W. Liemohn, C. R. Clauer, A. J. Ridley, M. F. Thomsen, J. E. Borovsky, J. L. Roeder, and V. K. Jordanova, Two-step Dst development and ring current composition changes during the 4-6 June 1991 magnetic storm, J. Geophys. Res., 107(A8), 1224, doi: 10.1029/2001JA000023, 2002. 

Liemohn, M. W., J. U. Kozyra, M. R. Hairston, D. M. Weimer, G. Lu, A. J. Ridley, T. H. Zurbuchen, and R. M. Skoug, Consequences of a saturated convection electric field on the ring current, Geophys. Res. Lett., 29(9), 1348, doi: 10.1029/2001GL014270, 2002. 

Posner, A., N. A. Schwadron, T. H. Zurbuchen, J. U. Kozyra, M. W. Liemohn, and G. Gloeckler, Association of low-charge-state heavy ions far upstream of the Earth's bow shock with space weather, Geophys. Res. Lett., 29(7), 1099, doi: 10.1029/2001GL013449, 2002