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Title: Effects of ULF waves on local and global energetic particles: Particle energy and species dependences

Journal Article · · Journal of Geophysical Research. Space Physics
DOI:https://doi.org/10.1002/2016JA023149· OSTI ID:1402659
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [2];  [1]; ORCiD logo [3];  [4]
  1. Beihang Univ., Beijing (China)
  2. Nanjing Univ. of Aeronautics and Astronautics, Nanjing (China)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of Colorado, Boulder, CO (United States)
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After 06:13 UT on 24 August 2005, an interplanetary shock triggers large-amplitude ultralow-frequency (ULF) waves (|δB| ≥ 15 nT) in the Pc4–Pc5 wave band (1.6–9 mHz) near the noon geosynchronous orbit (6.6 RE). The local and global effects of ULF waves on energetic particles are observed by five Los Alamos National Laboratory satellites at different magnetic local times. The large-amplitude ULF waves cause the synchronous oscillations of energetic electrons and protons (≥75 keV) at the noon geosynchronous orbit. When the energetic particles have a negative phase space density radial gradient, they undergo rapid outward radial diffusion and loss in the wave activity region. In the particle drift paths without strong ULF waves, only the rapidly drifting energetic electrons (≥225 keV) display energy-dispersive oscillations and flux decays, whereas the slowly drifting electrons (<225 keV) and protons (75–400 keV) have no ULF oscillation and loss feature. When the dayside magnetopause is compressed to the geosynchronous orbit, most of energetic electrons and protons are rapidly lost because of open drift trajectories. Furthermore, the global and multicomposition particle measurements demonstrate that the effect of ULF waves on nonlocal particle flux depends on the particle energy and species, whereas magnetopause shadowing effect is independent of the energetic particle species. For the rapidly drifting outer radiation belt particles (≥225 keV), nonlocal particle loss/acceleration processes could also change their fluxes in the entire drift trajectory in the absence of “Dst effect” and substorm injection.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1402659
Report Number(s):
LA-UR-17-28044; TRN: US1703022
Journal Information:
Journal of Geophysical Research. Space Physics, Vol. 121, Issue 11; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (43)

Analytic expressions for ULF wave radiation belt radial diffusion coefficients: Analytic Radial Diffusion Coefficients journal March 2014
Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm journal May 2014
Modeling radiation belt electron dynamics during GEM challenge intervals with the DREAM3D diffusion model: MODELING RADIATION BELT WITH DREAM3D journal October 2013
Energetic electron flux pulsations observed at geostationary orbit: Relation to magnetic pulsations journal January 1985
Joint responses of geosynchronous magnetic field and relativistic electrons to external changes in solar wind dynamic pressure and interplanetary magnetic field: JOINT RESPONSES OF FIELD AND ELECTRONS journal April 2013
On the calculation of electric diffusion coefficient of radiation belt electrons with in situ electric field measurements by THEMIS: Electric Radial Diffusion Coefficient journal February 2016
Association of radiation belt electron enhancements with earthward penetration of Pc5 ULF waves: a case study of intense 2001 magnetic storms journal January 2015
Review of modeling of losses and sources of relativistic electrons in the outer radiation belt I: Radial transport journal November 2008
Multiple loss processes of relativistic electrons outside the heart of outer radiation belt during a storm sudden commencement: RELATIVISTIC ELECTRON LOSS DURING A SSC journal December 2015
L * neural networks from different magnetic field models and their applicability journal February 2012
Van Allen Probes observation of localized drift resonance between poloidal mode ultra-low frequency waves and 60 keV electrons: ULF DRIFT RESONANCE journal September 2013
Simulation of the prompt energization and transport of radiation belt particles during the March 24, 1991 SSC journal November 1993
Discovery of the action of a geophysical synchrotron in the Earth’s Van Allen radiation belts journal November 2013
Excitation of poloidal standing Alfvén waves through drift resonance wave-particle interaction: POLOIDAL ULF WAVES AND DRIFT RESONANCE journal August 2013
Statistical roles of storms and substorms in changing the entire outer zone relativistic electron population: EFFECTS OF STORM/SUBSTORM ON ELECTRONS journal December 2009
Multisatellite determination of the relativistic electron phase space density at geosynchronous orbit: An integrated investigation during geomagnetic storm times: STORM journal November 2007
Observations of quasi-periodic flux variations of energetic ions and electrons associated with Pc 5 geomagnetic pulsations journal January 1981
Observations of a unique type of ULF wave by low-altitude Space Technology 5 satellites: ULF WAVES AT ST-5 journal August 2011
Explaining sudden losses of outer radiation belt electrons during geomagnetic storms journal January 2012
Quantifying the effect of magnetopause shadowing on electron radiation belt dropouts journal January 2013
Observations at geosynchronous orbit of a persistent Pc5 geomagnetic pulsation and energetic electron flux modulations journal January 2007
The influences of solar wind pressure and interplanetary magnetic field on global magnetic field and outer radiation belt electrons: Interplanetary Effect on Radiation Belt journal July 2016
Coronal mass ejections, magnetic clouds, and relativistic magnetospheric electron events: ISTP journal August 1998
Outer radiation belt boundary location relative to the magnetopause: Implications for magnetopause shadowing: BRIEF REPORT journal June 2011
Simulation of energy-dependent electron diffusion processes in the Earth's outer radiation belt: Simulation of Energy-Dependent Processes journal May 2016
Bounce resonant interaction between pulsations and trapped particles journal March 1969
Nonstorm loss of relativistic electrons in the outer radiation belt: NONSTORM ELECTRON PSD DROPOUT journal December 2015
Quantifying the relative contributions of substorm injections and chorus waves to the rapid outward extension of electron radiation belt journal December 2014
THEMIS observations of ULF wave excitation in the nightside plasma sheet during sudden impulse events: SI-INDUCED ULF WAVE IN THE NIGHTSIDE PLASMA SHEET journal January 2013
An unusual long-lived relativistic electron enhancement event excited by sequential CMEs journal November 2014
Compression-amplified EMIC waves and their effects on relativistic electrons journal June 2016
Ogo 5 observations of Pc 5 waves: Particle flux modulations journal July 1977
Electron Acceleration in the Heart of the Van Allen Radiation Belts journal July 2013
Charged particle behavior in low-frequency geomagnetic pulsations 1. Transverse waves journal January 1981
Multiple responses of magnetotail to the enhancement and fluctuation of solar wind dynamic pressure and the southward turning of interplanetary magnetic field: MULTIPLE RESPONSES OF MAGNETOTAIL journal December 2011
Magnetopause location under extreme solar wind conditions journal August 1998
Simulated magnetopause losses and Van Allen Probe flux dropouts journal February 2014
Electric and magnetic field observations of Pc4 and Pc5 pulsations in the inner magnetosphere: A statistical study: STATISTICAL STUDY ON ULF WAVES journal December 2009
Acceleration and loss of relativistic electrons during geomagnetic storms: ACCELERATION AND LOSS OF RELATIVISTIC ELECTRONS journal May 2003
Dynamic evolution of energetic outer zone electrons due to wave-particle interactions during storms: EVOLUTION OF ENERGETIC ELECTRONS journal October 2007
Relativistic electron loss due to ultralow frequency waves and enhanced outward radial diffusion: RELATIVISTIC ELECTRON LOSS-ULF WAVES journal December 2010
Accurately specifying storm-time ULF wave radial diffusion in the radiation belts: STORM-TIME ULF WAVE RADIAL DIFFUSION journal July 2015
Outward radial diffusion driven by losses at magnetopause journal January 2006

Cited By (2)

Recent Advancements and Remaining Challenges Associated With Inner Magnetosphere Cross‐Energy/Population Interactions (IMCEPI) journal February 2019
Effect of Low‐Harmonic Magnetosonic Waves on the Radiation Belt Electrons Inside the Plasmasphere journal May 2019

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Related Subjects

58 GEOSCIENCES
Heliospheric and Magnetospheric Physics
fluctuation of solar wind dynamic pressure
large-amplitude ULF waves
oscillation and loss of outer radiation belt energetic particles
negative radial gradient of energetic particle phase space density
outward radial diffusion
magnetopause shadowing