@article{b437dde187fa431d9a710b3c55334c35,
title = "Observations of Particle Loss due to Injection-Associated Electromagnetic Ion Cyclotron Waves",
abstract = "We report on observations of electromagnetic ion cyclotron (EMIC) waves and their interactions with injected ring current particles and high energy radiation belt electrons. The magnetic field experiment aboard the twin Van Allen Probes spacecraft measured EMIC waves near L = 5.5–6. Particle data from the spacecraft show that the waves were associated with particle injections. The wave activity was also observed by a ground-based magnetometer near the spacecraft geomagnetic footprint over a more extensive temporal range. Phase space density profiles, calculated from directional differential electron flux data from Van Allen Probes, show that there was a significant energy-dependent relativistic electron dropout over a limited L-shell range during and after the EMIC wave activity. In addition, the NOAA spacecraft observed relativistic electron precipitation associated with the EMIC waves near the footprint of the Van Allen Probes spacecraft. The observations suggest EMIC wave-induced relativistic electron loss in the radiation belt.",
keywords = "EMIC waves, injection, particle precipitation, radiation belt, ring current, wave particle interaction",
author = "Hyomin Kim and Quintin Schiller and Engebretson, {Mark J.} and Sungjun Noh and Ilya Kuzichev and Lanzerotti, {Louis J.} and Gerrard, {Andrew J.} and Kim, {Khan Hyuk} and Lessard, {Marc R.} and Spence, {Harlan E.} and Lee, {Dae Young} and J{\"u}rgen Matzka and Tanja Fromm",
note = "Funding Information: The work at the New Jersey Institute of Technology (NJIT) was supported by NSF under grant AGS-1602560 and the NASA Van Allen Probes RBSPICE instrument project, as supported by JHU/APL Subcontract No. 131803 to NJIT under NASA Prime Contract No. NNN06AA01C. The authors acknowledge support as follows: Q. Schiller, NASA grant 80NSSC20K0082; M. J. Engebretson, NSF grants PLR-1341493 and AGS-1651263; I. Kuzichev, NSF Grant AGS-1502923; K.-H. Kim, the Basic Science Research Program through National Research Foundation of Korea under grant NRF-2019R1F1A1055444; M. R. Lessard, NSF grant ANT-1745041; and D.-Y. Lee, the N ational Research Foundation of Korea under grant NRF-2019R1A2C1003140. The authors would like to thank the Van Allen Probes teams (EMFISIS, ECT, RBSPICE) for providing data utilized in this study. Processing and analysis of the HOPE, MagEIS, and REPT data were supported by the Radiation Belt Storm Probes-Energetic Particle, Composition, and Thermal Plasma (RBSP-ECT) investigation funded under NASA's Prime contract no. NAS5-01072. The fluxgate magnetometer data from Neumayer Station (VNA) are provided by Alfred Wegener Institute (AWI), Bremerhaven, Germany, and GFZ, Potsdam, Germany through https://intermagnet.org/. The MICA-S induction-coil magnetometer data from Neumayer Station (VNA) are provided by Kyung Hee University (lead institute, Korea), the University of New Hampshire (UNH), NJIT, AWI, and GFZ through the UNH induction-coil data repository at http://mirl.sr.unh.edu/. The authors gratefully acknowledge the SuperMAG collaborators (http://supermag.jhuapl.edu/info/?page=acknowledgement) for providing SuperMAG data. The authors also gratefully acknowledge use of NASA/GSFC's Space Physics Data Facility's OMNIWeb, SSCweb, and CDAWeb data. Funding Information: The work at the New Jersey Institute of Technology (NJIT) was supported by NSF under grant AGS‐1602560 and the NASA Van Allen Probes RBSPICE instrument project, as supported by JHU/APL Subcontract No. 131803 to NJIT under NASA Prime Contract No. NNN06AA01C. The authors acknowledge support as follows: Q. Schiller, NASA grant 80NSSC20K0082; M. J. Engebretson, NSF grants PLR‐1341493 and AGS‐1651263; I. Kuzichev, NSF Grant AGS‐1502923; K.‐H. Kim, the Basic Science Research Program through National Research Foundation of Korea under grant NRF‐2019R1F1A1055444; M. R. Lessard, NSF grant ANT‐1745041; and D.‐Y. Lee, the N ational Research Foundation of Korea under grant NRF‐2019R1A2C1003140. The authors would like to thank the Van Allen Probes teams (EMFISIS, ECT, RBSPICE) for providing data utilized in this study. Processing and analysis of the HOPE, MagEIS, and REPT data were supported by the Radiation Belt Storm Probes‐Energetic Particle, Composition, and Thermal Plasma (RBSP‐ECT) investigation funded under NASA's Prime contract no. NAS5‐01072. The fluxgate magnetometer data from Neumayer Station (VNA) are provided by Alfred Wegener Institute (AWI), Bremerhaven, Germany, and GFZ, Potsdam, Germany through https://intermagnet.org/ . The MICA‐S induction‐coil magnetometer data from Neumayer Station (VNA) are provided by Kyung Hee University (lead institute, Korea), the University of New Hampshire (UNH), NJIT, AWI, and GFZ through the UNH induction‐coil data repository at http://mirl.sr.unh.edu/ . The authors gratefully acknowledge the SuperMAG collaborators ( http://supermag.jhuapl.edu/info/?page=acknowledgement ) for providing SuperMAG data. The authors also gratefully acknowledge use of NASA/GSFC's Space Physics Data Facility's OMNIWeb, SSCweb, and CDAWeb data. Publisher Copyright: {\textcopyright} 2020. The Authors.",
year = "2021",
month = feb,
doi = "10.1029/2020JA028503",
language = "English (US)",
volume = "126",
journal = "Journal of Geophysical Research: Space Physics",
issn = "2169-9380",
number = "2",
}