Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

First Direct Observations of Propagation of Discrete Chorus Elements From the Equatorial Source to Higher Latitudes, Using the Van Allen Probes and Arase Satellites

Journal Article · · Journal of Geophysical Research. Space Physics
DOI:https://doi.org/10.1029/2020ja028315· OSTI ID:1740001
 [1];  [2];  [3];  [4];  [1];  [1];  [1];  [5];  [4];  [6];  [6];  [7];  [8];  [6];  [9]
  1. Univ. of Minnesota Twin Cities, Minneapolis, MN (United States)
  2. Nagoya Univ. (Japan)
  3. Kanazawa Univ. (Japan)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Univ. of Iowa, Iowa City, IA (United States)
  6. ISAS/JAXA, Sagamihara (Japan)
  7. Tohoku Univ., Sendai (Japan)
  8. CEA, DAM, DIF, Arpajon (France); UPS, CEA LMCE, Bruyères‐le‐Châtel (France)
  9. ISAS, JAXA Kyoto University Kyoto Japan
+ Show Author Affiliations
Whistler mode chorus waves have recently been established as the most likely candidate for scattering relativistic electrons to produce the electron microbursts observed by low altitude satellites and balloons. These waves would have to propagate from the equatorial source region to significantly higher magnetic latitude in order to scatter electrons of these relativistic energies. This theoretically proposed propagation has never been directly observed. We present the first direct observations of the same discrete rising tone chorus elements propagating from a near equatorial (Van Allen Probes) to an off-equatorial (Arase) satellite. The chorus is observed first on the more equatorial satellite and is found to be more oblique and significantly attenuated at the off-equatorial satellite. Further, this is consistent with the prevailing theory of chorus propagation and with the idea that chorus must propagate from the equatorial source region to higher latitudes. Ray tracing of chorus at the observed frequencies confirms that these elements could be generated parallel to the field at the equator, and propagate through the medium unducted to Van Allen Probes A and then to Arase with the observed time delay, and have the observed obliquity and intensity at each satellite.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
JSPS KAKENHI; National Aeronautic and Space Administration (NASA); USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1740001
Alternate ID(s):
OSTI ID: 1786715
Report Number(s):
LA-UR--20-24874
Journal Information:
Journal of Geophysical Research. Space Physics, Journal Name: Journal of Geophysical Research. Space Physics Journal Issue: 10 Vol. 125; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (82)

Fine structure of large-amplitude chorus wave packets: STRUCTURE OF CHORUS WAVE PACKETS journal January 2014
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations: pulsating aurora journal April 2015
Relation between fine structure of energy spectra for pulsating aurora electrons and frequency spectra of whistler mode chorus waves journal September 2015
Empirical model of lower band chorus wave distribution in the outer radiation belt: EMPIRICAL MODEL OF CHORUS WAVES journal December 2015
New chorus wave properties near the equator from Van Allen Probes wave observations journal May 2016
The distribution of plasmaspheric hiss wave power with respect to plasmapause location: PLASMAPAUSE-SORTED HISS journal August 2016
First multipoint in situ observations of electron microbursts: Initial results from the NSF FIREBIRD II mission: FIREBIRD SPATIAL SCALE OF MICROBURSTS journal June 2016
Two sources of dayside intense, quasi‐coherent plasmaspheric hiss: A new mechanism for the slot region? journal February 2017
Chorus whistler wave source scales as determined from multipoint Van Allen Probe measurements: Chorus Whistler Wave Source Scales journal March 2017
Observations Directly Linking Relativistic Electron Microbursts to Whistler Mode Chorus: Van Allen Probes and FIREBIRD II journal November 2017
Simultaneous Observations of Lower Band Chorus Emissions at the Equator and Microburst Precipitating Electrons in the Ionosphere journal January 2018
Quasi-linear diffusion coefficients for highly oblique whistler mode waves: DIFFUSION COEFFICIENTS FOR OBLIQUE WAVES journal May 2017
Examining Coherency Scales, Substructure, and Propagation of Whistler Mode Chorus Elements With Magnetospheric Multiscale (MMS): MMS Observations of Chorus Elements journal November 2017
Statistical Properties of Plasmaspheric Hiss From Van Allen Probes Observations: STATISTICS OF PLASMASPHERIC HISS journal April 2018
Global statistical evidence for chorus as the embryonic source of plasmaspheric hiss: SOURCE OF PLASMASPHERIC HISS journal June 2013
Characteristics of the Poynting flux and wave normal vectors of whistler-mode waves observed on THEMIS: WHISTLER WAVE PROPAGATION PROPERTIES journal April 2013
Statistics of whistler mode waves in the outer radiation belt: Cluster STAFF-SA measurements: WHISTLER WAVES STATISTICS journal June 2013
The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission journal October 2013
The Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) on RBSP journal June 2013
Oblique Whistler-Mode Waves in the Earth’s Inner Magnetosphere: Energy Distribution, Origins, and Role in Radiation Belt Dynamics journal April 2016
New high temporal and spatial resolution measurements by SAMPEX of the precipitation of relativistic electrons journal January 1996
Chorus source locations from VLF Poynting flux measurements with the Polar spacecraft journal November 1998
An empirical plasmasphere and trough density model: CRRES observations journal November 2001
Observations of relativistic electron microbursts in association with VLF chorus journal April 2001
SAMPEX observations of precipitation bursts in the outer radiation belt journal July 2000
Singular value decomposition methods for wave propagation analysis: SVD METHODS FOR WAVE PROPAGATION ANALYSIS journal February 2003
Relativistic electron microbursts during the GEM storms journal July 2001
Rebuilding process of the outer radiation belt during the 3 November 1993 magnetic storm: NOAA and Exos-D observations journal January 2003
Evidence for chorus-driven electron acceleration to relativistic energies from a survey of geomagnetically disturbed periods journal January 2003
Relativistic electron acceleration and precipitation during resonant interactions with whistler-mode chorus: RELATIVISTIC ELECTRON ACCELERATION journal May 2003
Quantification of relativistic electron microburst losses during the GEM storms journal January 2004
Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss journal January 2006
Origins of plasmaspheric hiss journal January 2006
Modeling the propagation characteristics of chorus using CRRES suprathermal electron fluxes: PROPAGATION CHARACTERISTICS OF CHORUS journal August 2007
Ray tracing of penetrating chorus and its implications for the radiation belts: PENETRATING CHORUS journal August 2007
Discovery of very large amplitude whistler-mode waves in Earth's radiation belts journal January 2008
Theory and simulation of the generation of whistler-mode chorus: GENERATION PROCESS OF CHORUS EMISSIONS journal April 2008
Global distribution of whistler-mode chorus waves observed on the THEMIS spacecraft journal January 2009
Oblique propagation of whistler mode waves in the chorus source region: OBLIQUE CHORUS journal December 2009
Survey of Poynting flux of whistler mode chorus in the outer zone: OUTER ZONE CHORUS journal July 2010
Observation of relativistic electron microbursts in conjunction with intense radiation belt whistler-mode waves: WAVE-DRIVEN MICROBURSTS journal April 2011
Global distribution of wave amplitudes and wave normal angles of chorus waves using THEMIS wave observations: CHORUS WAVE DISTRIBUTION ON THEMIS journal December 2011
THEMIS observation of chorus elements without a gap at half the gyrofrequency: CONTINUOUS RISING TONE CHORUS journal November 2012
Modeling the wave normal distribution of chorus waves: CHORUS WAVE NORMAL ANGLE journal March 2013
Focusing on Size and Energy Dependence of Electron Microbursts From the Van Allen Radiation Belts journal November 2012
Variation in Plasmaspheric Hiss Wave Power With Plasma Density journal September 2018
Spatial Extent and Temporal Correlation of Chorus and Hiss: Statistical Results From Multipoint THEMIS Observations journal October 2018
Statistical Occurrence and Distribution of High‐Amplitude Whistler Mode Waves in the Outer Radiation Belt journal March 2019
Effects of Ducting on Whistler Mode Chorus or Exohiss in the Outer Radiation Belt journal June 2019
Particle Dynamics in the Earth's Radiation Belts: Review of Current Research and Open Questions journal May 2020
Statistical Distribution of Whistler Mode Waves in the Radiation Belts With Large Magnetic Field Amplitudes and Comparison to Large Electric Field Amplitudes journal August 2019
Potential waves for relativistic electron scattering and stochastic acceleration during magnetic storms journal August 1998
Microburst phenomena: 3. An association between microbursts and VLF chorus journal April 1968
Morphology of VLF emissions observed with the Injun 3 satellite journal September 1968
Banded chorus-A new type of VLF radiation observed in the magnetosphere by OGO 1 and OGO 3 journal June 1969
Electron precipitation associated with discrete very-low-frequency emissions journal December 1971
Use of the three-dimensional covariance matrix in analyzing the polarization properties of plane waves journal October 1972
Plasmaspheric hiss journal April 1973
Two types of magnetospheric ELF chorus and their substorm dependences journal November 1977
Conjugacy of electron microbursts and VLF chorus journal January 1981
Path-integrated growth of electrostatic waves: The generation of terrestrial myriametric radiation journal January 1989
Balloon observations of X rays in the auroral zone: 3. High time resolution studies journal November 1964
The unexpected origin of plasmaspheric hiss from discrete chorus emissions journal March 2008
Scattering by chorus waves as the dominant cause of diffuse auroral precipitation journal October 2010
Rapid local acceleration of relativistic radiation-belt electrons by magnetospheric chorus journal December 2013
Pulsating aurora from electron scattering by chorus waves journal February 2018
Explaining sudden losses of outer radiation belt electrons during geomagnetic storms journal January 2012
Visualization of rapid electron precipitation via chorus element wave–particle interactions journal January 2019
Multiple time-scale beats in aurora: precise orchestration via magnetospheric chorus waves journal February 2020
The FIREBIRD-II CubeSat mission: Focused investigations of relativistic electron burst intensity, range, and dynamics journal March 2020
An Observation Linking the Origin of Plasmaspheric Hiss to Discrete Chorus Emissions journal May 2009
Identifying the Driver of Pulsating Aurora journal September 2010
Electron Acceleration in the Heart of the Van Allen Radiation Belts journal July 2013
A simulation study of the propagation of whistler-mode chorus in the Earth’s inner magnetosphere journal April 2014
The ARASE (ERG) magnetic field investigation journal March 2018
Onboard software of Plasma Wave Experiment aboard Arase: instrument management and signal processing of Waveform Capture/Onboard Frequency Analyzer journal May 2018
The Plasma Wave Experiment (PWE) on board the Arase (ERG) satellite journal May 2018
Geospace exploration project ERG journal June 2018
The ERG Science Center journal June 2018
Ducted propagation of chorus waves: Cluster observations journal January 2011
Chorus wave-normal statistics in the Earth's radiation belts from ray tracing technique journal January 2012
Spatial spreading of magnetospherically reflected chorus elements in the inner magnetosphere journal January 2013

Similar Records

Relativistic electron microbursts and variations in trapped MeV electron fluxes during the 8-9 October 2012 storm: SAMPEX and Van Allen Probes observations
Journal Article · Sat Mar 05 19:00:00 EST 2016 · Geophysical Research Letters · OSTI ID:1402605
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations
Journal Article · Mon Apr 20 20:00:00 EDT 2015 · Journal of Geophysical Research. Space Physics · OSTI ID:1212464

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Chorus
Propagation
Radiation belt
Simultaneous observations
Wave