@article{SaikinJordanovaZhangetal.2018,
  author    = {Saikin, Anthony and Jordanova, Vania K. and Zhang, J. C. and Smith, C. W. and Spence, H. E. and Larsen, B. A. and Reeves, G. D. and Torbert, R. B. and Kletzing, C. A. and Zhelayskaya, I. S. and Shprits, Yuri Y.},
  title     = {Comparing simulated and observed EMIC wave amplitudes using in situ Van},
  series = {Journal of Atmospheric and Solar-Terrestrial Physics},
  volume    = {177},
  journal   = {Journal of Atmospheric and Solar-Terrestrial Physics},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {1364-6826},
  doi       = {10.1016/j.jastp.2018.01.024},
  pages     = {190 -- 201},
  year      = {2018},
  abstract  = {We perform a statistical study calculating electromagnetic ion cyclotron (EMIC) wave amplitudes based off in situ plasma measurements taken by the Van Allen Probes' (1.1-5.8 Re) Helium, Oxygen, Proton, Electron (HOPE) instrument. Calculated wave amplitudes are compared to EMIC waves observed by the Electric and Magnetic Field Instrument Suite and Integrated Science on board the Van Allen Probes during the same period. The survey covers a 22-month period (1 November 2012 to 31 August 2014), a full Van Allen Probe magnetic local time (MLT) precession. The linear theory proxy was used to identify EMIC wave events with plasma conditions favorable for EMIC wave excitation. Two hundred and thirty-two EMIC wave events (103 H+-band and 129 He+-band) were selected for this comparison. Nearly all events selected are observed beyond L = 4. Results show that calculated wave amplitudes exclusively using the in situ HOPE measurements produce amplitudes too low compared to the observed EMIC wave amplitudes. Hot proton anisotropy (Ahp) distributions are asymmetric in MLT within the inner (L < 7) magnetosphere with peak (minimum) Ahp, ∼0.81 to 1.00 (∼0.62), observed in the dawn (dusk), 0000 < MLT ≤ 1200 (1200 < MLT ≤ 2400), sectors. Measurements of Ahp are found to decrease in the presence of EMIC wave activity. Ahp amplification factors are determined and vary with respect to EMIC wave-band and MLT. He+-band events generally require double (quadruple) the measured Ahp for the dawn (dusk) sector to reproduce the observed EMIC wave amplitudes.},
  language  = {en}
}
@article{AvilovKulyginPietschetal.1999,
  author    = {Avilov, Anatoly S. and Kulygin, Alexander K. and Pietsch, Ullrich and Spence, John C. H. and Tsirelson, Vladimir G. and Zuo, Ming J.},
  title     = {Scanning system for high-energy electron diffractometry},
  issn      = {0021-8898},
  doi       = {10.1107/S0021889899006755},
  year      = {1999},
  language  = {en}
}
@article{TsirelsonAvilovLepeshovetal.2001,
  author    = {Tsirelson, Vladimir G. and Avilov, Anatoly S. and Lepeshov, G. G. and Kuligin, A. K. and Stahn, Jochen and Pietsch, Ullrich and Spence, J. C. H.},
  title     = {Quantitative Analysis of the Inner-Crystal Electrostatic Potential of several Rock-Salt-Structure Crystals Using Accurate Electron-Diffraction Data},
  issn      = {1089-5647},
  year      = {2001},
  language  = {en}
}
@article{ParraSpenceSajdaetal.2000,
  author    = {Parra, L. and Spence, C. and Sajda, P. and Ziehe, Andreas and M{\"u}ller, Klaus-Robert},
  title     = {Unmixing hyperspectral data},
  year      = {2000},
  language  = {en}
}
@article{ShpritsDrozdovSpasojevicetal.2016,
  author    = {Shprits, Yuri Y. and Drozdov, Alexander and Spasojevic, Maria and Kellerman, Adam C. and Usanova, Maria E. and Engebretson, Mark J. and Agapitov, Oleksiy V. and Zhelavskaya, Irina and Raita, Tero J. and Spence, Harlan E. and Baker, Daniel N. and Zhu, Hui and Aseev, Nikita},
  title     = {Wave-induced loss of ultra-relativistic electrons in the Van Allen radiation belts},
  series = {Nature Communications},
  volume    = {7},
  journal   = {Nature Communications},
  publisher = {Nature Publ. Group},
  address   = {London},
  issn      = {2041-1723},
  doi       = {10.1038/ncomms12883},
  pages     = {7},
  year      = {2016},
  language  = {en}
}