Papers and Reports

Bringing together top space science students with internationally recognized researchers at Los Alamos in an educational and collaborative atmosphere.

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  • Lynea Koshar
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Annual research reports

Papers, posters, presentations

Students and mentors: to have your presentations or papers related to your Los Alamos Space Weather Summer School project listed here, please send the reference to the summer school Director.

Journal Publications

Students are indicated in bold.

  • Hughes, R. S., S. P. Gary, and J. Wang (2017), Particle-in-cell simulations of electron and ion dissipation by whistler turbulence: variations with electron β. Astrophys. J. Lett., 835:L15. doi: 10.3847/2041-8213/835/1/L15.
  • Schiller, Q., W. Tu, A. Ali, X. Li, H. Godinez, D. L. Turner, S. K. Morley, and M. G. Henderson (2017), Simultaneous event specific estimates of transport, loss, and source rates for relativistic outer radiation belt electrons, J. Geophys. Res. Space Physics, 122, doi:10/1002/2016JA023093.
  • McGranaghan, R., D. J. Knipp, and T. Matsuo (2016), High-latitude ionospheric conductivity variability in three dimensions, Geophys. Res. Lett., 43, doi:10.1002/2016GL070253.
  • Gary, S.P., R.S. Hughes, and J. Wang (2016), Whistler turbulence heating of electrons and ions: Three-dimensional particle-in-cell simulations, Astrophys. J., 816, doi: 10.3847/0004-637X/816/2/102.
  • McGranaghan, R., D. J. Knipp, T. Matsuo, H. Godinez, R. J. Redmon, S. C. Solomon, and S. K. Morley (2015), Modes of high-latitude auroral conductance variability derived from DMSP energetic electron precipitation observations: Empirical orthogonal function analysis. J. Geophys. Res., 120, 11,013–11,031, doi:10.1002/2015JA021828.
  • McGranaghan, R., D. J. Knipp, S. C. Solomon, and X. Fang (2015), A fast, parameterized model of upper atmospheric ionization rates, chemistry, and conductivity. J. Geophys. Res., 120, 4936–4949. doi: 10.1002/2015JA021146.
  • Ali, A. F., S. R. Elkington, W. Tu, L. G. Ozeke, A. A. Chan, and R. H. W. Friedel (2015), Magnetic field power spectra and magnetic radial diffusion coefficients using CRRES magnetometer data. J. Geophys. Res., 120, 973–995. doi: 10.1002/2014JA020419.
  • Hartley, D. P., Y. Chen, C. A. Kletzing, M. H. Denton, and W. S. Kurth (2015), Applying the cold plasma dispersion relation to whistler-mode chorus waves: EMFISIS wave measurements from the Van Allen Probes, J. Geophys. Res., doi: 10.1002/2014JA020808.
  • Xu, F. and J.E. Borovsky (2015), A new four-plasma categorization scheme for the solar wind, J. Geophys. Res., 120, 1, doi:10.1002/2014JA020412.
  • Gary, S.P., R.S. Hughes, J. Wang, and O. Chang (2014), Whistler anisotropy instability: Spectral transfer in a three-dimensional particle-in-cell simulation, J. Geophys. Res., 119, doi: 10.1002/2013JA019618.
  • P. M. Mehta, A. Walker, C. A. McLaughlin, and J. Koller (2014), Comparing Physical Drag Coefficients Computed with Direct Simulation Monte Carlo using different Gas-Surface Interaction Models, J. Spacecraft Rockets, 51, 3, 873-883.
  • A. Walker, P. M. Mehta, and J. Koller (2014), Different Implementations of Diffuse Reflection with Incomplete Accommodation for Drag Coefficient Modeling, J. Spacecraft Rockets, 51, 5, 1522-1532.
  • A. Walker, P. M. Mehta, and J. Koller (2014), Drag Coefficient Model using the Cercignani-Lampis-Lord Gas-Surface Interaction Model, J. Spacecraft Rockets, 51, 5, 1544-1563.
  • Mehta, P.M., A. Walker, E. Lawrence, R. Linares, D. Higdon, and J. Koller (2014), Modeling Satellite Drag Coefficients with Response Surfaces, Adv. Space Res., 54, 8, 1590-1607.
  • Hughes, R. S., S. P. Gary, and J. Wang (2014), Electron and ion heating by whistler turbulence: Three-dimensional particle-in-cell simulations, Geophys. Res. Lett., 41, doi:10.1002/2014GL062070.
  • Zhang, X. Y., M. B. Moldwin, J. T. Steinberg, R. M. Skoug (2014), Alfven waves as a possible source of long-duration, large-amplitude, and geoeffective southward IMF, J. Geophys. Res., 119, 5, doi:10.1002/2013JA019623.
  • Yue, C., C.-P. Wang, S. G. Zaharia, X. Xing, and L. Lyons (2013), Empirical modeling of plasma sheet pressure and three-dimensional force-balanced magnetospheric magnetic field structure: 2. Modeling, J. Geophys. Res., 118, 6166–6175, doi:10.1002/2013JA018943.
  • Wang, C.-P., C. Yue, S. Zaharia, X. Xing, L. Lyons, V. Angelopoulos, T. Nagai, and T. Lui (2013), Empirical modeling of plasma sheet pressure and three-dimensional force-balanced magnetospheric magnetic field structure: 1. Observation, J. Geophys. Res., 118, 6154–6165, doi:10.1002/jgra.50585.
  • Schiller, Q., X. Li, J. Koller, H. Godinez, and D. L. Turner (2012), A parametric study of the source rate for outer radiation belt electrons using a Kalman filter, J. Geophys. Res., 117, A09211, doi:10.1029/2012JA017779.
  • Chang, O., S. Peter Gary, and J. Wang (2011), Whistler turbulence forward cascade: Three-dimensional particle-in-cell simulations, Geophys. Res. Lett., 38, L22102, doi:10.1029/2011GL049827.
Conference Presentations

Students are indicated in bold.

  • Koshkarov, O., G. L. Delzanno, G. Manzini and V. Roytershteyn (2017), New hybrid method for the Vlasov-Maxwell system: coupling of spectral and PIC methods, SIAM Conference on Computational Science and Engineering, Atlanta.
  • Hughes, R.S., S.P. Gary, and J. Wang (2016), Particle-in-cell simulations of electron and ion dissipation by whistler turbulence: variations with electron β, American Geophysical Union Fall Meeting, San Francisco, SH21C-2553.
  • Schiller, Q., W. Tu, A. Ali, X. Li, H. Godinez, D. L. Turner, S. K. Morley, and M. G. Henderson (2016), Improvements to transport, loss, and source terms in a 1D radial diffusion model of relativistic electrons, 7th VLF/ELF Remote Sensing of the Ionosphere and Magnetosphere and Radiation Belt Symposia, Hermanus, South Africa.
  • Schiller, Q., W. Tu, A. Ali, X. Li, H. Godinez (2015), Event specific simultaneous estimates of loss, diffusion, and acceleration for MeV electrons, American Geophysical Union Fall Meeting, San Francisco.
  • Hughes, R.S., S.P. Gary, and J. Wang (2015), Parametric Studies of Ion and Electron Heating by Whistler Turbulence: Three Dimensional Particle-In-Cell Simulations, American Geophysical Union Fall Meeting, San Francisco, SH33A-2453.
  • Desai, R., M. Cowee, S. Gary, H. Wei, A. Coates, D. Kataria, and X. Fu (2015), Simulating Negative Pickup Ions and Ion Cyclotron Wave Generation at Europa, American Geophysical Union Fall Meeting, San Francisco.
  • Hoey, W., A. Walker, D. Goldstein, P. Varghese, and L. Trafton (2015), On the Simulation of Rarefied Planetary Atmospheres with the DSMC Method, Direct Simulation Monte Carlo Conference, Kapa'a.
  • McGranaghan, R. (2015), Primary modes of high-latitude conductance variability: Improved modeling and Empirical Orthogonal Function (EOF) analysis, Geospace Environment Modeling Workshop, Snowmass.
  • McGranaghan, R., D. J. Knipp, T. Matsuo, H. Godinez, R. Redmon, S. Morley, and S. Solomon (2015), Modes of high-latitude conductance variability derived from DMSP F6-F8 and F16-F18 energetic electron precipitation observations: Empirical Orthogonal Function (EOF) analysis, Triennial Earth-Sun Summit, Indianapolis.
  • Dong, C., D. Winske, M. Cowee, S. Bougher, L. Andersson, J. Connerney, J. Espley, R. Ergun, J. McFadden, Y. Ma, G. Toth, S. Curry, and A. Nagy (2015), Plasma and wave properties downstream of Martian bow shock: Hybrid simulations and MAVEN observations, Triennial Earth-Sun Summit, Indianapolis.
  • Gasperini, F., H. Godinez, and J. Koller (2014), Solar rotation effects on CHAMP neutral and plasma densities at solar maximum and solar minimum, 14th Conference on Cloud Physics/14th Conference on Atmospheric Radiation, Boston.
  • Hughes, R.S., S.P. Gary, J. Wang, and O. Chang (2014), Electron and Ion Heating by Whistler Turbulence: Three-Dimensional Particle-In-Cell Simulations, American Geophysical Union Fall Meeting, San Francisco, SH51A-4136
  • Waters, T., X. Fu, and S. P. Gary (2014), Building a Dispersion Relation Solver for Hot Plasmas with Arbitrary Non-relativistic Parallel Velocity Distributions, American Geophysical Union Fall Meeting, San Francisco.
  • Schiller, Q., X. Li, H. Godinez, T. Sarris, W. Tu, D. Malaspina, D. Turner, J. B. Blake, and J. Koller (2014), Analysis of a non-storm time enhancement in outer belt electrons, American Geophysical Union Fall Meeting, San Francisco.
  • McGranaghan, R., D. J. Knipp, T. Matsuo, and H. Godinez (2014), Global High-Latitude Conductivity Modeling: New Data and Improved Methods, American Geophysical Union Fall Meeting, San Francisco.
  • De Pascuale, S., V. Jordanova, J. Goldstein, and C. Kletzing (2014), Global Plasmaspheric Electron Density Simulations of Pre-dawn and Post-dusk Geomagnetic Events Observed by the Van Allen Probes, American Geophysical Union Fall Meeting, San Francisco.
  • Hoey, W., Walker, A., Goldstein, D., Varghese, P., Trafton, L. (2014), Application of the DSMC Method in Modeling Earth's Rarefied Upper Atmosphere, American Geophysical Union Fall Meeting, San Francisco.
  • Friedel, R. F., H. Zhao, B. Larsen, G. Reeves, R. Skoug, C. Kletzing, M. Henderson and Y. Chen (2014), Direct measurements of chorus wave effects on electrons in the 5-40 KeV range from the Van Allen Probes Mission, American Geophysical Union Chapman Conference on Low frequency waves, Jeju, South Korea.
  • Hughes, R.S., S.P. Gary, J. Wang, and O. Chang (2013), The Whistler Anisotropy Instability and the Inverse Cascade of Short-Wavelength Turbulence, American Geophysical Union Fall Meeting, San Francisco
  • Schiller, Q., et al. (2013), Non-storm time enhancement of relativistic electrons in the outer radiation belt: direct injections or in situ heating associated with substorms?, Geospace Environment Modeling Workshop, Snowmass.
  • Yue, C., S. G. Zaharia, C. Wang, L. R. Lyons, T. Hsu, V. Angelopoulos, and T. Nagai (2012). Data-driven Modeling of Substorm Growth Phase Magnetic Field. American Geophysical Union Fall Meeting, San Francisco, SM51C-2308.
  • Schiller, Q., X. Li, H. Godinez, and J. Koller (2012), Estimation of Gaussian source rate parameters in outer radiation belt electrons using a Kalman filter, American Geophysical Union Fall Meeting, San Francisco.
  • Schiller, Q., X. Li, J. Koller, H. Godinez, and D. Turner (2012), Estimating source rate parameters of outer radiation belt electrons using a Kalman filter, Geospace Environment Modeling Workshop, Snowmass.
  • Larsen, B. A., M. A. Engel, C. D. Munson, T. E. Cayton, S. K. Morley (2011), Solar Energetic Particle Trapping in the Magnetosphere: What Spectral Differences Tell Us About Mechanisms, American Geophysical Union Fall Meeting, SH31B-2009.
  • Schiller, Q., X. Li, H. Godinez, J. Koller, and D. Turner (2011), Estimation of the source rate for radiation belt electrons using a Kalman filter, American Geophysical Union Fall Meeting, San Francisco.
  • Engel, M. A. and B. A. Larsen (2011), Solar Energetic Particles Trapping in the Magnetosphere, American Geophysical Union Fall Meeting, SH31B-2015.
  • Zheng, L., S. G. Zaharia, F. Toffoletto (2011), Magnetospheric structure during substorm growth phase inferred from satellite observed pressures, American Geophysical Union Fall Meeting, SM12A-05.
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