Denise Thorsen
Professional Memberships and Awards:
- Honors and Awards
- Nominated Harold L. Olesen Award (1991): “Excellence in undergraduate teaching by graduate students”
- Included in “List of teachers ranked excellent by their students”
- CEDAR 1993, Student Poster Prize
- Memberships
- Institute of Electrical and Electronic Engineers
- American Geophysical Union
- URSI - Commission G
- American Society for Engineering Education
Positions Held:
- Assistant Professor, University of Alaska, Fairbanks (2001 – Present)
- Research Scientist, University of Colorado, CIRES (1996-2000)
- Lecturer, University of Colorado (1996, 1998, 1999)
- Research Assistant, University of Illinois, Wave Propagation Lab (1987 – 1996)
- Independent Engineering Consultant (1991 – 1992)
- Teaching Assistant, University of Illinois (1989 - 1992, 1996)
- Staff Engineer, Hughes Aircraft, Space and Communications Group (1985 - 1987)
- Independent Engineering Consultant (1984)
- Cooperative Engineering Student, Raytheon, Missile Systems Division, 3 terms (1983 – 1984)
Present Research Interests:
- Development of digital instrumentation and computer interfaces for acquisition of radar backscatter data
- Scattering mechanisms and propagation of radio signals through random media
- Radar techniques for observing the middle atmosphere, including neutral atmospheric wind motions, turbulence, temperature, and electron densities
- Wave dynamics and their interaction with the background atmosphere, including coupling of atmospheric regions, interactions between large-scale and small-scale wave motions, and global scale energy flux distributions
Curt Szuberla
Dr. Szuberla joined the Geophysical Institute and the Physics Department of the University of Alaska Fairbanks in 2005. His research interests include atmospheric infrasound and digital signal processing. He studies various geophysical and man-made sources of infrasound and the array processing techniques required to detect and characterize them. His current projects center on infrasound-based nuclear explosion monitoring, as part of the verification regime of the Comprehensive Nuclear-Test-Ban Treaty.
Juan Roederer
Selected Publications:
- Neurobiological Foundations of Religion and Science, in Seckbach and Gordon, eds., Divine Action and Natural Selection: Questions of Science and Faith in Biological Evolution, World Scientific Publ. Co. (2008).
- Biological Conditions for the Emergence of Musical Arts in a Civilization of Intelligent Beings (Chapter in Between Worlds, D. Vakoch ed., MIT Press, 2008).
Antonius Otto
Present Research Interests:
- Magnetic Reconnection
- Plasma Entry (Kelvin Helmholtz Modes)
- Magnetotail Dynamics
- Magnetosphere-Ionosphere Coupling
Extended Publication List:
John Olson
Professional Memberships and Awards:
- American Geophysical Union
- Acoustical Society of America
- IEEE Signal Processing Society
Hans Nielsen
A Professor of Geophysics Emeritus and Associate Director of the Geophysical Institute, Professor Nielsen received his M.Sc. in 1965 from the Royal Technical University of Denmark. Professor Nielsen has a research background primarily in auroral and magnetospheric physics. At the institute, he has worked on optical auroral research and ionospheric and magnetospheric active experiments, notably the barium shaped-charge program.
Chung-Sang Ng
Professional Memberships and Awards:
- Honors
- 1994 - The Outstanding Research Award, Physics Department, Auburn University (for the best research by a student in that year)
- 1990 - The First Year Graduate Physics Award, Physics Department, Auburn University (for the best academic performance)
- Memberships
- Phi Kappa Phi
- The American Physical Society
- American Geophysical Union
Positions Held:
- (2008 – Present) Associate Professor, University of Alaska Fairbanks
- (2006 – 2008) Adjunct Associate Professor, University of Maryland University College
- (2003 – 2008) Research Assistant Professor, University of New Hampshire
- (2002 – 2003) Associate Research Scientist, University of Iowa
- (1996 – 2002) Assistant Research Scientist, University of Iowa
- (1994 – 1996) Research Investigator, University of Iowa
- (1989 – 1994) Research/Teaching Assistant, Auburn University
- (1988 – 1989) Full-time Teaching Assistant, Chinese University of Hong Kong
- (1986 – 1988) Graduate Teaching Assistant, Chinese University of Hong Kong
Present Research Interests:
- Theoretical/Computational Plasma Physics, with Applications in Space and Fusion Plasmas
- MHD Turbulence
- Heating of The Solar Corona
- Heating of The Solar Wind
- Landau Damping
- BGK Modes
- Magnetic Reconnection
- Dusty Plasmas
- Field-Line Resonances in Ionosphere/Magnetosphere
- Hydrodynamic Singularities
- Free-Electron Laser
- Mode Conversion in Fusion Plasmas
- Classical Electrodynamics
Selected Publications:
- C. S. Ng, S. J. Soundararajan, and E. Yasin, Electrostatic Structures in Space Plasmas: Stability of Two-dimensional Magnetic Bernstein-Greene-Kruskal Modes, submitted to AIP Conf. Proc. [http://arxiv.org/abs/1106.4073] (2011).
- A. R. Soto Chavez, A. Bhattacharjee, and C. S. Ng, Whistler Amplification: A Free Electron Laser in the Earth's Magnetosphere, submitted to Phys. Rev. Lett. (2011).
- C. S. Ng, L. Lin, and A. Bhattacharjee, High-Lundquist Number Scaling in Three- Dimensional Simulations of Parker’s Model of Coronal Heating, submitted to Astrophys. J. [http://arxiv.org/abs/1106.0515] (2011).
- C. S. Ng, and S. Ragunathan, High-Lundquist Number Resistive MHD Simulations of Turbulent Magnetic Reconnection with Secondary Island Formation and Enhanced Reconnection Rate, ASP Conference Series, in press, [http://arxiv.org/abs/1106.0521], (2011).
- C. S. Ng, A. Bhattacharjee, D. Munsi, P. A. Isenberg, and C. W. Smith, The Effect of Magnetic Turbulence Energy Spectra and Pickup Ions on the Heating of the Solar Wind, AIP Conf. Proc., 1302, 174 [http://arxiv.org/abs/1106.0528] (2010).
- C. S. Ng, L. Lin, and A. Bhattacharjee, Three-Dimensional Simulations of the Parker’s Model of Solar Coronal Heating: Lundquist Number Scaling due to Random Photospheric Footpoint Motion, ASP Conference Series, 429, 201 (2010).
- C. S. Ng and A. Bhattacharjee, Response to “Comment on ‘Weakly collisional Landau damping and three-dimensional Bernstein-Greene-Kruskal modes: New results on old problems’”, Phys. Plasmas 17, 054701 (2010).
- C. S. Ng, A. Bhattacharjee, D. Munsi, P. A. Isenberg, and C. W. Smith, Kolmogorov versus Iroshnikov-Kraichnan spectra: Consequences for ion heating in the solar wind, J. Geophys. Res., 115, A02101 (2010).
- X. H. Deng, M. Zhou, S. Y. Li, W. Baumjohann, M. Andre, N. Cornilleau, O. Santolı ́k, D. I. Pontin, H. Reme, E. Lucek, A. N. Fazakerley, P. Decreau, P. Daly, R. Nakamura, R. X. Tang, Y. H. Hu, Y. Pang, J. Büchner, H. Zhao, A. Vaivads, J. S. Pickett, C. S. Ng, X. Lin, S. Fu, Z. G. Yuan, Z. W. Su, and J. F. Wang, Dynamics and waves near multiple magnetic null points in reconnection diffusion region, J. Geophys. Res., 114, A07216, doi:10.1029/2008JA013197 (2009).
Extended Publication List:
David Newman
Present Research Interests:
- Dynamics and Control of SOC Systems (Sandpiles, Power Transmission, Communications, Traffic, Plasmas)
- Basic Plasma and Fluid Turbulence
- The Interaction Between Sheared Flows and Turbulence
- Modeling Transitions in Plasma Transport
- Dynamics of Atomistic Flows in Carbon Nanotubes
- Development of Higher Order Characteristic Measures of Dynamical Systems
Selected Publications:
- Recurrence quantification analysis of simulations of near-marginal dissipative-trapped-electron-mode turbulence J. A. Mier, R. Sanchez, L. Garcia, J. Varela, and D. E. Newman, Phys. Plasmas 18, 062306 (2011).
- Exploring complex systems aspects of blackout risk and mitigation, D.E. Newman, B.A. Carreras, V.E. Lynch, I. Dobson, to appear in IEEE Transactions on Reliability in 2011.
- Parallelization in time of numerical simulations of fully-developed plasma turbulence using the parareal algorithm, D. Samaddar, D.E. Newman, R. Sanchez, Journal of Computational Physics, Volume 229, Issue 18, 1 September 2010, Pages 6558-6573.
- A simple model for the reliability of an infrastructure system controlled by agents, B.A. Carreras, D.E. Newman, I. Dobson, M. Zeidenberg Forty-third Hawaii International Conference on System Sciences, Hawaii, January 2010.
- The impact of risk-averse operation on the likelihood of extreme events in a simple model of infrastructure. B. A. Carreras, D E Newman, I Dobson, M Zeidenberg, Chaos, Vol 19, 4, 043107 Dec 2009.
- On the nature of radial transport across sheared zonal flows in electrostatic ion-temperature-gradient gyrokinetic tokamak plasma turbulence R. Sánchez, D. E. Newman, J.-N. Leboeuf, B. A. Carreras, and V. K. Decyk, Phys. Plasmas 16 055905 (2009).
- A simple model for the reliability of an infrastructure system controlled by agents, B.A. Carreras, D.E. Newman, I. Dobson, M. Zeidenberg Forty-second Hawaii International Conference on System Sciences, Hawaii, January 2009.
- Validation in Fusion Research: Towards Guidelines and Best Practices, P. W. Terry, M. Greenwald, J.-N. Leboeuf, G. R. McKee, D. R. Mikkelsen, W. M. Nevins, D. E. Newman, and D. P. Stotler, Phys. Plasmas 15, 062503 (2008).
- Characterization of non-diffusive transport in plasma turbulence via a novel Lagrangian method, J.A. Mier, R. Sánchez, L. Garcia, B. A. Carreras, B.A. and D. E. Newman, Physical Review Letters, Vol. 101, no. 16, 165001, Oct. 2008.
- On the nature of transport in near-critical dissipative trapped electron turbulence: effect of a subdominant diffusive channel, Mier, J.A., Sánchez, R., Garcia, L., Newman, D.E. and Carreras, B.A., Physics of Plasmas, Vol. 15, 112301, Nov 2008.
- On the nature of transport across sheared zonal flows in electrostatic, toroidal gyrokinetic plasma turbulence, R. Sánchez, D. E. Newman, J. N. Leboeuf, V. K. Decyk and B. A. Carreras, Physical Review Letters, Vol. 101, no. 20, 205002, Nov 2008.
- Evaluating the effect of upgrade, control and development strategies on robustness and failure risk of the Power Transmission Grid, Newman, D.E., B.A. Carreras, V.E. Lynch, and I. Dobson, 41th Hawaii International Conference on System Sciences, Hawaii, Jan. 2008.
Extended Publication List:
Links:
Roman Makarevich
Professional Memberships and Awards:
Member, American Geophysical Union (AGU)
Positions Held:
- Associate Professor, Department of Physics, University of Alaska Fairbanks, US (2011 – Present)
- Senior Lecturer, Department of Physics, La Trobe University, Australia, (2009 – 2010)
- Lecturer, Department of Physics, La Trobe University, Australia (2005 – 2008)
- Research Associate, Department of Communication Systems, Lancaster University, UK (2003 – 2005)
Present Research Interests:
- Naturally Occurring Plasma Irregularities
- Global Plasma Convection
- Magnetosphere-Ionosphere Coupling
- Energetic Particle Precipitation
Selected Publications:
- Makarevich, R. A., A. C. Kellerman, J. C. Devlin, H. Ye, L. R. Lyons, and Y. Nishimura, SAPS intensification during substorm recovery: A multi-instrument case study, J. Geophys. Res., 116, A11311, doi:1029/2011JA016916, 2011.
- Kumar, V. V. , R. A. Makarevich, T. A. Kane, H. Ye, J. C. Devlin and P. L. Dyson, On the spatiotemporal evolution of the ionospheric backscatter during disturbed periods as observed by the TIGER Bruny Island HF radar, J. Atmos. Sol.-Terr. Phys., 73, 1940-1952, 2011.
- Kellerman, A. C., and R. A. Makarevich, The response of auroral absorption to substorm onset: Superposed epoch and propagation analyzes, J. Geophys. Res., 116, A05312, doi:1029/2010JA015972, 2011.
- Kosch, M. J., C. Anderson, H.-C. I. Yiu, A. C. Kellerman, R. A. Makarevich, A. Aruliah, M. Conde, E. Griffin, T. Davies, I. McWhirter, and P. L. Dyson, First observations of simultaneous interhemispheric conjugate high-latitude thermospheric winds, J. Geophys. Res., 115, A09328, doi:10.1029/2009JA015178, 2010.
- Kane, T. A., and R. A. Makarevich, HF radar observations of the F-region ionospheric plasma response to Storm Sudden Commencements, J. Geophys. Res., 115, A07320, doi:10.1029/2009JA014974, 2010.
- Makarevich, R. A., On the occurrence of high-velocity E-region echoes in SuperDARN observations, J. Geophys. Res., 115, A07302, doi:10.1029/2009JA014698, 2010.
- Carter, B. A., and R. A. Makarevich, On the diurnal variation of the E-region coherent HF echo occurrence, J. Atmos. Sol.-Terr. Phys., 72, 570-582, 2010.
- Kosch, M. J., C. Anderson, R. A. Makarevich, B. A. Carter, R. A. D. Fiori, M. Conde, P. L. Dyson, and T. Davies, First E-region observations of meso-scale neutral wind interaction with auroral arcs, J. Geophys. Res., 115, A02303, doi:10.1029/2009JA014697, 2010.
- Koustov, A. V., G. Ya. Khachikjan, R. A. Makarevich, and C. Bryant, On the SuperDARN cross polar cap potential saturation effect, Ann. Geophys., 27, 3755-3764, 2009.
- Makarevich, R. A. and B. A. Carter, HF echo types revisited: aspect angle attenuation effects, Ann. Geophys., 27, 3065-3075, 2009.
- Fiori, R. A. D., A. V. Koustov, D. Boteler, and R. A. Makarevich, PCN magnetic index and average convection velocity in the polar cap inferred from SuperDARN radar measurements, J. Geophys. Res., 114, A07225, doi:10.1029/2008JA013964, 2009.
- Makarevich, R. A., Coherent radar measurements of the Doppler velocity in the auroral E region, Radio Science Bulletin, 327, 33-46, 2009.
- Makarevich, R. A. , A. C. Kellerman, Y. V. Bogdanova, and A. V. Koustov, Time evolution of the subauroral electric fields: A case study during a sequence of two substorms, J. Geophys. Res., 114, A04312, 10.1029/2008JA013944, 2009.
- Kellerman, A. C., R. A. Makarevich, F. Honary, and T. L. Hansen, On the relationship between auroral absorption, electrojet currents and plasma convection, Ann. Geophys., 27, 473-486, 2009.
- Carter, B. A., and R. A. Makarevich, E region decameter-scale plasma waves observed by the dual TIGER HF radars, Ann. Geophys., 27, 261-278, 2009.
Extended Publication List:
