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Hayley Allison


Biography

Hayley graduated from the University of Leicester in 2015 with a MPhys in Physics with Astrophysics. She then began a PhD in Applied Mathematics, hosted jointly by the University of Cambridge and the British Antarctic Survey, in the fall of 2015. During her PhD, Hayley received the Outstanding Student Paper Award from the American Geophysical Union (2017). She successfully defended her PhD thesis, “Understanding how low energy electrons control the variability of Earth’s electron radiation belts” in the summer of 2019, for which she was awarded the runner up Keith Runcorn Thesis Prize from the Royal Astronomical Society. Hayley now works as an Alexander von Humboldt postdoctoral research fellow at GFZ, Potsdam.

Research interests

  • Dynamics of radiation belt electrons
  • Energy transport in the Earth’s radiation belts
  • Wave-Particle Interactions

Publications

  1. Shprits Y. Y., H. J. Allison, D. Wang, A. Drozdov, M. Szabo-Roberts, I. Zhelavskaya, R. Vasile, (2022), A New Population of Ultra-Relativistic Electrons in the Outer Radiation Zone, J. Geophys. Res. [Space Physics], 127, e2021JA030214, doi:10.1029/2021JA030214, e2021JA030214 2021JA030214
  2. Drozdov A. Y., L. W. Blum, M. Hartinger, H. Zhao, S. Lejosne, M. K. Hudson, H. J. Allison, L. Ozeke, A. N. Jaynes, (2022), Radial Transport Versus Local Acceleration: The Long-Standing Debate, Earth And Space Science, 9, e2022EA002216, doi:10.1029/2022EA002216, e2022EA002216 2022EA002216
  3. Drozdov A. Y., H. J. Allison, Y. Y. Shprits, M. E. Usanova, A. Saikin, D. Wang, (2022), Depletions of Multi-MeV Electrons and Their Association to Minima in Phase Space Density, Geophysical Research Letters, 49, e2021GL097620, doi:10.1029/2021GL097620, e2021GL097620 2021GL097620
  4. Lejosne S., H. J. Allison, L. W. Blum, A. Y. Drozdov, M. D. Hartinger, M. K. Hudson, A. N. Jaynes, L. Ozeke, E. Roussos, H. Zhao, (2022), Differentiating Between the Leading Processes for Electron Radiation Belt Acceleration, Frontiers In Astronomy And Space Sciences, 9, doi:10.3389/fspas.2022.896245
  5. Smirnov A., Y. Shprits, H. Allison, N. Aseev, A. Drozdov, P. Kollmann, D. Wang, A. A. Saikin, (2022), Storm-Time Evolution of the Equatorial Electron Pitch Angle Distributions in Earth’s Outer Radiation Belt, Frontiers In Astronomy And Space Sciences, 9, doi:10.3389/fspas.2022.836811
  6. Szabó-Roberts M., Y. Y. Shprits, H. J. Allison, R. Vasile, A. G. Smirnov, N. A. Aseev, A. Y. Drozdov, Y. Miyoshi, S. G. Claudepierre, S. Kasahara, S. Yokota, T. Mitani, T. Takashima, N. Higashio, T. Hori, K. Keika, S. Imajo, I. Shinohara, (2021), Preliminary Statistical Comparisons of Spin-Averaged Electron Data From Arase and Van Allen Probes Instruments, J. Geophys. Res. [Space Physics], 126, e2020JA028929, doi:10.1029/2020JA028929, e2020JA028929 2020JA028929
  7. Drozdov A. Y., H. J. Allison, Y. Y. Shprits, S. R. Elkington, N. A. Aseev, (2021), A Comparison of Radial Diffusion Coefficients in 1-D and 3-D Long-Term Radiation Belt Simulations, J. Geophys. Res. [Space Physics], 126, e2020JA028707, doi:10.1029/2020JA028707, e2020JA028707 2020JA028707
  8. Allison H. J., Y. Y. Shprits, (2020), Local heating of radiation belt electrons to ultra-relativistic energies, Nature Communications, 11, doi:10.1038/s41467-020-18053-z
  9. Cervantes Villa S., Y. Y. Shprits, N. A. Aseev, H. J. Allison, (2020), Quantifying the Effects of EMIC Wave Scattering and Magnetopause Shadowing in the Outer Electron Radiation Belt by Means of Data Assimilation, J. Geophys. Res. [Space Physics], 125, e2020JA028208, doi:10.1029/2020JA028208, e2020JA028208 10.1029/2020JA028208
  10. Smirnov A. G., M. Berrendorf, Y. Y. Shprits, E. A. Kronberg, H. J. Allison, N. A. Aseev, I. S. Zhelavskaya, S. K. Morley, G. D. Reeves, M. R. Carver, F. Effenberger, (2020), Medium Energy Electron Flux in Earth’s Outer Radiation Belt (MERLIN): A Machine Learning Model, Space Weather, 18, e2020SW002532, doi:10.1029/2020SW002532, e2020SW002532 10.1029/2020SW002532
  11. Drozdov A. Y., M. E. Usanova, M. K. Hudson, H. J. Allison, Y. Y. Shprits, (2020), The Role of Hiss, Chorus, and EMIC Waves in the Modeling of the Dynamics of the Multi-MeV Radiation Belt Electrons, J. Geophys. Res. [Space Physics], 125, e2020JA028282, doi:10.1029/2020JA028282, e2020JA028282 2020JA028282
  12. Watt C. E., H. J. Allison, N. P. Meredith, R. L. Thompson, S. N. Bentley, I. J. Rae, S. A. Glauert, R. B. Horne, (2019), Variability of Quasilinear Diffusion Coefficients for Plasmaspheric Hiss, J. Geophys. Res. [Space Physics], 124, 8488-8506, doi:10.1029/2018JA026401
  13. Allanson O., C. E. Watt, H. Ratcliffe, N. P. Meredith, H. J. Allison, S. N. Bentley, T. Bloch, S. A. Glauert, (2019), Particle-in-cell Experiments Examine Electron Diffusion by Whistler-mode Waves: 1. Benchmarking With a Cold Plasma, J. Geophys. Res. [Space Physics], 124, 8893-8912, doi:10.1029/2019JA027088
  14. Stallard T., K. Baines, T. Bradley, L. Moore, J. O’Donoghue, S. Miller, M. Chowdhury, S. Badman, H. Allison, E. Roussos, (2019), Local-time averaged maps of H 3 + emission, temperature and ion winds, Philosophical Transactions Of The Royal Society A: Mathematical Physical And Engineering Sciences, 377, 20180405, doi:10.1098/rsta.2018.0405
  1. Allison H. J., Y. Y. Shprits, (2020), Local heating of radiation belt electrons to ultra-relativistic energies, Nature Communications, 11, doi:10.1038/s41467-020-18053-z

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Conference presentations

  1. Drozdov A., H. Allison, Y. Shprits, N. Aseev, (2020), A Comparison of Radial Diffusion Coefficients in 1-D and 3-D Long-Term Radiation Belt Simulations, EGU General Assembly 2020, EGU General Assembly Conference Abstracts, 17757
  1. Smirnov A., Y. Shprits, H. Allison, N. Aseev, A. Drozdov, P. Kollmann, D. Wang, A. Saikin, (2022), Equatorial electron pitch angle distributions in Earth’s outer radiation belt: Storm-time evolution and empirical modeling, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, doi:10.5194/egusphere-egu22-7732
  2. Drozdov A., H. Allison, Y. Shprits, M. Usanova, A. Saikin, (2021), Minima in phase space density and how they relate to the multi-MeV electron radiation belt depletions, (invited), Iceaa-ieee Apwc-usnc URSI RSM 2021, August 9-13, 2021
  3. Drozdov A. Y., H. J. Allison, Y. Y. Shprits, S. R. Elkington, N. A. Aseev, (2021), 1-D and 3-D VERB code simulations with different DLL, Virtual GEM Summer Workshop 2021, July 20-23, 2020
  4. Drozdov A. Y., H. J. Allison, Y. Y. Shprits, S. R. Elkington, N. A. Aseev, (2021), 3-D VERB code simulations with different DLL, Virtual GEM Summer Workshop 2021, July 20-23, 2020
  5. Drozdov A., Y. Shprits, N. Aseev, M. Usanova, F. Effenberger, H. Allison, A. Saikin, I. Zhelavskaya, (2021), Depletion of multi-MeV electrons and its relation to the minima in phase space density, 43rd COSPAR Scientific Assembly, Sydney, Australia, 28 Jan – 04 Feb 2021
  6. Shprits Y., A. Drozdov, H. Allison, N. Aseev, (2021), Unusual behavior of the ultra-relativistic electron radiation belts revealed by Van Allen Probes observations, 43rd COSPAR Scientific Assembly, Sydney, Australia, 28 Jan – 04 Feb 2021
  7. Smirnov A., Y. Shprits, H. Allison, N. Aseev, A. Drozdov, P. Kollmann, (2021), Equatorial electron pitch angle distributions in Earth’s radiation belts and ring current: Van Allen Probes observations, 43rd COSPAR Scientific Assembly, Sydney, Australia, 28 Jan – 04 Feb 2021
  8. Shprits Y., H. Allison, A. Drozdov, D. Wang, N. Aseev, I. Zhelavskaya, M. Usanova, (2021), Acceleration and Loss of Ultra-relativistic Electrons in the Earth Van Allen Radiation Belts, EGU General Assembly 2021, EGU General Assembly Conference Abstracts, EGU21-3120
  9. Wang D., Y. Shprits, A. Drozdov, N. Aseev, I. Zhelavskaya, A. Castillo, H. Allison, S. Cervantes Villa, F. Effenberger, (2021), Simulations of the Relativistic Radiation Belt Electrons Using the VERB-3D Code, EGU General Assembly 2021, EGU General Assembly Conference Abstracts, EGU21-3802
  10. Smirnov A., E. Kronberg, F. Effenberger, G. Reeves, S. Morley, Y. Shprits, N. Aseev, I. Zhelavskaya, M. Carver, H. Allison, M. Berrendorf, (2021), Medium energy electron flux in Earth’s outer radiation belt (MERLIN): a machine learning model from GPS data, 43rd COSPAR Scientific Assembly, 1086
  11. Drozdov A. Y., H. J. Allison, Y. Y. Shprits, M. E. Usanova, A. Saikin, D. Wang, M. Szabo-Roberts, (2021), Observations of multi-MeV electron flux depletion and their relation to the minima in phase space density, AGU 2021 Fall Meeting
  12. Drozdov A. Y., M. E. Usanova, M. Hudson, H. J. Allison, Y. Y. Shprits, (2020), The role of hiss, chorus and EMIC waves in the modeling of the dynamics of the multi-MeV radiation belt electrons, Virtual GEM Summer Workshop 2020, July 20-23, 2020
  13. Drozdov A., H. Allison, Y. Shprits, N. Aseev, (2020), A Comparison of Radial Diffusion Coefficients in 1-D and 3-D Long-Term Radiation Belt Simulations, EGU General Assembly 2020, EGU General Assembly Conference Abstracts, 17757
  14. Drozdov A., Y. Shprits, N. Aseev, M. Usanova, H. Allison, A. Saikin, I. Zhelavskaya, (2020), Minima in phase space density and how they relate to the multi-MeV electron radiation belt depletions, AGU 2020 Fall Meeting
  15. Wutzig M., Y. Shprits, N. Aseev, I. Michaelis, H. Allison, R. Vasile, (2020), Using the VERB-4D code for forecasting Earth’s radiation belt and ring current electron dynamics, (invited), AGU 2020 Fall Meeting
  16. Szabo-Roberts M., Y. Shprits, H. Allison, A. Smirnov, N. Aseev, R. Vasile, Y. Miyoshi, T. Mitani, N. Higashio, S. Kasahara, (2020), Statistical Comparisons of Spin-Averaged Electron Flux from ARASE and Van Allen Probes Instruments, (poster), AGU 2020 Fall Meeting