Title: Relativistic Electron Precipitation Events Driven by Solar Wind Impact on the Earth's Magnetosphere

Journal Article · · Journal of Geophysical Research. Space Physics
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [5];  [5]; ORCiD logo [6];  [6]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  2. University of California, Los Angeles, CA (United States)
  3. University of California, Los Angeles, CA (United States); University of Texas at Dallas, Richardson, TX (United States)
  4. University of California, Los Angeles, CA (United States); Boston University, MA (United States)
  5. Technische Universität Braunschweig, Braunschweig (Germany)
  6. Austrian Academy of Science, Graz (Austria)

Certain forms of solar wind transients contain significant enhancements of dynamic pressure and may effectively drive magnetosphere dynamics, including substorms and storms. An integral element of such driving is the generation of a wide range of electromagnetic waves within the inner magnetosphere, either by compressionally heated plasma or by substorm plasma sheet injections. Consequently, solar wind transient impacts are traditionally associated with energetic electron scattering and losses into the atmosphere by electromagnetic waves. In this study, we show the first direct measurements of two such transient-driven precipitation events as measured by the low-altitude Electron Losses and Fields Investigation CubeSats. The first event demonstrates storm-time generated electromagnetic ion cyclotron waves efficiently precipitating sub-relativistic and relativistic electrons from >300 keV to 2 MeV at the duskside. The second event demonstrates whistler-mode waves leading to scattering of electrons from 50 to 700 keV on the dawnside. These observations confirm the importance of solar wind transients in driving energetic electron losses and subsequent dynamics in the ionosphere.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
Air Force Office of Scientific Research (AFOSR); German Center for Aviation and Space (DLR); German Ministry for Economy and Technology; National Aeronautics and Space Administration (NASA); National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
2367508
Report Number(s):
LA-UR-23-31472
Journal Information:
Journal of Geophysical Research. Space Physics, Journal Name: Journal of Geophysical Research. Space Physics Journal Issue: 5 Vol. 129; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (145)

Magnetosphere-ionosphere energy interchange in the electron diffuse aurora: I-M ENERGY INTERCHANGE journal January 2014
Ion bulk heating in magnetic reconnection exhausts at Earth's magnetopause: Dependence on the inflow Alfvén speed and magnetic shear angle: ION HEATING IN RECONNECTION journal October 2014
Modeling inward diffusion and slow decay of energetic electrons in the Earth's outer radiation belt: Modeling gradual diffusion processes journal February 2015
The role of small-scale ion injections in the buildup of Earth's ring current pressure: Van Allen Probes observations of the 17 March 2013 storm journal September 2014
Electron losses from the radiation belts caused by EMIC waves journal November 2014
Study of EMIC wave excitation using direct ion measurements: MIN ET AL. journal April 2015
Very oblique whistler generation by low-energy electron streams: OBLIQUE WHISTLER-MODE WAVE GENERATION journal May 2015
Van Allen probes, NOAA, GOES, and ground observations of an intense EMIC wave event extending over 12 h in magnetic local time: EMIC WAVES AND THE RADIATION BELTS journal July 2015
Energetic ions in dipolarization events journal September 2015
Resonant scattering of outer zone relativistic electrons by multiband EMIC waves and resultant electron loss time scales journal September 2015
Excitation of dayside chorus waves due to magnetic field line compression in response to interplanetary shocks: DAYSIDE CHORUS DUE TO IP SHOCK journal October 2015
Storm time dynamics of ring current protons: Implications for the long‐term energy budget in the inner magnetosphere journal May 2016
EMIC wave spatial and coherence scales as determined from multipoint Van Allen Probe measurements journal May 2016
Unraveling the excitation mechanisms of highly oblique lower band chorus waves: EXCITATION OF OBLIQUE LOWER BAND CHORUS journal September 2016
Statistical distribution of EMIC wave spectra: Observations from Van Allen Probes: STATISTICS ON EMIC WAVE SPECTRA journal December 2016
Evidence of sub‐MeV EMIC‐driven electron precipitation journal February 2017
EMIC wave scale size in the inner magnetosphere: Observations from the dual Van Allen Probes journal February 2017
Nonresonant interactions of electromagnetic ion cyclotron waves with relativistic electrons: EMIC WAVE NONRESONANT SCATTERING journal October 2016
Ion acceleration at dipolarization fronts in the inner magnetosphere journal March 2017
Mesospheric ozone destruction by high-energy electron precipitation associated with pulsating aurora: CHEMISTRY EFFECTS OF PULSATING AURORAE journal October 2016
Multiple-Satellite Observation of Magnetic Dip Event During the Substorm on 10 October 2013: OBSERVATION OF MAGNETIC DIP journal September 2017
The Characteristic Response of Whistler Mode Waves to Interplanetary Shocks journal October 2017
Synthetic Empirical Chorus Wave Model From Combined Van Allen Probes and Cluster Statistics: SYNTHETIC EMPIRICAL CHORUS MODEL journal January 2018
Constructing the global distribution of chorus wave intensity using measurements of electrons by the POES satellites and waves by the Van Allen Probes: GLOBAL DISTRIBUTION OF CHORUS WAVES journal September 2013
Statistics of whistler mode waves in the outer radiation belt: Cluster STAFF-SA measurements: WHISTLER WAVES STATISTICS journal June 2013
Particle Diffusion in the Radiation Belts book January 1974
The THEMIS Mission journal April 2008
The THEMIS Fluxgate Magnetometer journal May 2008
The THEMIS ESA Plasma Instrument and In-flight Calibration journal October 2008
Are high-intensity long-duration continuous AE activity (HILDCAA) events substorm expansion events? journal January 2004
A review of interplanetary discontinuities and their geomagnetic effects journal January 2011
Superposed epoch analyses of HILDCAAs and their interplanetary drivers: Solar cycle and seasonal dependences journal December 2014
Modeling of the electromagnetic ion cyclotron wave generation in the H+–He+ plasma of the inner magnetosphere journal April 2015
Introduction to Space Physics book April 1995
Interplanetary origin of geomagnetic storms journal April 1999
Interaction between an interplanetary magnetic cloud and the Earth's magnetosphere: Motions of the bow shock journal June 2000
The terrestrial ring current: Origin, formation, and decay journal November 1999
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
The Landau damping of magnetospherically reflected whistlers within the plasmasphere: THE LANDAU DAMPING OF MR WHISTLERS journal August 2002
Relativistic electron pitch-angle scattering by electromagnetic ion cyclotron waves during geomagnetic storms journal January 2003
The extreme magnetic storm of 1–2 September 1859 journal January 2003
Quantification of relativistic electron microburst losses during the GEM storms journal January 2004
Solar wind spatial scales in and comparisons of hourly Wind and ACE plasma and magnetic field data journal January 2005
Evaluation of quasi-linear diffusion coefficients for whistler mode waves in a plasma with arbitrary density ratio journal January 2005
Calculation of pitch angle and energy diffusion coefficients with the PADIE code: PADIE DIFFUSION CODE journal April 2005
Solar wind-magnetosphere coupling leading to relativistic electron energization during high-speed streams journal January 2005
Corotating solar wind streams and recurrent geomagnetic activity: A review journal January 2006
Geoeffectiveness of corotating interaction regions as measured by Dst index journal May 2006
Distribution of density along magnetospheric field lines journal January 2006
Timescales for radiation belt electron acceleration and loss due to resonant wave-particle interactions: 1. Theory: RADIATION BELT ELECTRON TIMESCALES journal April 2007
Timescales for radiation belt electron acceleration and loss due to resonant wave-particle interactions: 2. Evaluation for VLF chorus, ELF hiss, and electromagnetic ion cyclotron waves: RADIATION BELT ELECTRON TIMESCALES journal April 2007
Ray tracing of penetrating chorus and its implications for the radiation belts: PENETRATING CHORUS journal August 2007
Resonant scattering of plasma sheet electrons by whistler-mode chorus: Contribution to diffuse auroral precipitation journal January 2008
Electron impact ionization: A new parameterization for 100 eV to 1 MeV electrons: PARAMETERIZING IONIZATION BY ELECTRONS journal September 2008
Surface waves and field line resonances: A THEMIS case study: FIELD LINE RESONANCE journal January 2009
Simulation of EMIC wave excitation in a model magnetosphere including structured high-density plumes: EMIC EXCITATION IN PLUMES journal July 2009
Global simulation of EMIC wave excitation during the 21 April 2001 storm from coupled RCM-RAM-HOTRAY modeling: GLOBAL SIMULATION OF EMIC WAVES journal July 2010
Rapid scattering of radiation belt electrons by storm-time EMIC waves: RADIATION BELT LOSS DUE TO EMIC WAVES journal May 2010
Warm plasma effects on electromagnetic ion cyclotron wave MeV electron interactions in the magnetosphere: EMIC WAVES AND MEV ELECTRONS journal May 2011
The controlling effect of ion temperature on EMIC wave excitation and scattering: HOT PLASMA EFFECT ON EMIC WAVES journal August 2011
Diffuse auroral scattering by whistler mode chorus waves: Dependence on wave normal angle distribution: AURORAL SCATTERING BY WHISTLER MODE CHORUS WAVES journal October 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
Timescales for electron quasi-linear diffusion by parallel and oblique lower-band chorus waves: TIMESCALES FOR OBLIQUE CHORUS DIFFUSION journal June 2012
THEMIS observations of electromagnetic ion cyclotron wave occurrence: Dependence on AE, SYMH, and solar wind dynamic pressure: THEMIS EMIC WAVE DISTRIBUTION journal October 2012
Modeling the wave normal distribution of chorus waves: CHORUS WAVE NORMAL ANGLE journal March 2013
Ion Trapping and Acceleration at Dipolarization Fronts: High-Resolution MHD and Test-Particle Simulations journal July 2018
Near‐Earth Solar Wind: Plasma Characteristics From ARTEMIS Measurements journal December 2018
The Effects of Localized Thermal Pressure on Equilibrium Magnetic Fields and Particle Drifts in The Inner Magnetosphere journal July 2019
EMIC Wave Properties Associated With and Without Injections in The Inner Magnetosphere journal March 2019
Energetic Electron Precipitation: Multievent Analysis of Its Spatial Extent During EMIC Wave Activity journal April 2019
Pitch Angle Scattering of Sub‐MeV Relativistic Electrons by Electromagnetic Ion Cyclotron Waves journal July 2019
Multi‐instrument Observation of Nonlinear EMIC‐Driven Electron Precipitation at sub–MeV Energies journal July 2019
On How High‐Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons journal July 2019
Wavenumber Analysis of EMIC Waves journal June 2019
Time Scales for Electron Quasi‐linear Diffusion by Lower‐Band Chorus Waves: The Effects of ω pe / Ω ce Dependence on Geomagnetic Activity journal June 2019
Direct Observation of Subrelativistic Electron Precipitation Potentially Driven by EMIC Waves journal November 2019
A Multi‐Instrument Approach to Determining the Source‐Region Extent of EEP‐Driving EMIC Waves journal March 2020
On Whistler Mode Wave Relation to Electron Field‐Aligned Plateau Populations journal March 2020
Development of a Bowtie Inversion Technique for Real‐Time Processing of the GOES‐16/‐17 SEISS MPS‐HI Electron Channels journal April 2020
Persistent EMIC Wave Activity Across the Nightside Inner Magnetosphere journal March 2020
Statistical Evidence for EMIC Wave Excitation Driven by Substorm Injection and Enhanced Solar Wind Pressure in the Earth's Magnetosphere: Two Different EMIC Wave Sources journal October 2020
Whistler‐Mode Waves Trapped by Density Irregularities in the Earth's Magnetosphere journal March 2021
Driving of Outer Belt Electron Loss by Solar Wind Dynamic Pressure Structures: Analysis of Balloon and Satellite Data journal December 2020
A Generalized Method for Calculating Atmospheric Ionization by Energetic Electron Precipitation journal November 2020
In Situ Observations of Whistler‐Mode Chorus Waves Guided by Density Ducts journal April 2021
Energetic Electron Enhancement and Dropout Echoes Induced by Solar Wind Dynamic Pressure Decrease: The Effect of Phase Space Density Profile journal March 2021
The Characteristics of EMIC Waves in the Magnetosphere Based on the Van Allen Probes and Arase Observations journal June 2021
Evidence of Sub‐MeV EMIC‐Driven Trapped Electron Flux Dropouts From GPS Observations journal May 2021
Prompt Response of the Dayside Magnetosphere to Discrete Structures Within the Sheath Region of a Coronal Mass Ejection journal June 2021
Evidence of Small Scale Plasma Irregularity Effects on Whistler Mode Chorus Propagation journal February 2021
Duration of Individual Relativistic Electron Microbursts: A Probe Into Their Scattering Mechanism journal September 2021
Superposed Epoch Analyses of Electron‐Driven and Proton‐Driven Magnetic Dips journal November 2021
Conjugate Observation of Magnetospheric Chorus Propagating to the Ionosphere by Ducting journal November 2021
Normal‐ and Reversed‐Boomerang Stripes on Electron Pitch Angle Distributions: Solar Wind Dynamic Pressure Effect journal January 2022
Ducted Chorus Waves Cause Sub‐Relativistic and Relativistic Electron Microbursts journal March 2022
Using Principal Component Analysis to Characterize the Variability of VLF Wave Intensities Measured by a Low‐Altitude Spacecraft and Caused by Interplanetary Shocks journal April 2021
Electron Lifetimes and Diffusion Rates Inferred From ELFIN Measurements at Low Altitude: First Results journal November 2021
Role of Ducting in Relativistic Electron Loss by Whistler‐Mode Wave Scattering journal November 2021
A Test of Energetic Particle Precipitation Models Using Simultaneous Incoherent Scatter Radar and Van Allen Probes Observations journal August 2022
Immediate Impact of Solar Wind Dynamic Pressure Pulses on Whistler‐Mode Chorus Waves in the Inner Magnetosphere journal March 2022
Simultaneous Evolutions of Inner Magnetospheric Plasmaspheric Hiss and EMIC Waves Under the Influence of a Heliospheric Plasma Sheet journal May 2022
EMIC Waves Observed Throughout the Inner Magnetosphere Driven by Abrupt Enhancement of the Solar Wind Pressure journal April 2022
Hot Plasma Effects on Electron Resonant Scattering by Electromagnetic Ion Cyclotron Waves journal May 2022
Relativistic Electron Precipitation by EMIC Waves: Importance of Nonlinear Resonant Effects journal September 2022
Bursty Energetic Electron Precipitation by High‐Order Resonance With Very‐Oblique Whistler‐Mode Waves journal April 2023
Relativistic Electron Precipitation Driven by Nonlinear Resonance With Whistler‐Mode Waves journal May 2022
Characteristics of Electron Microburst Precipitation Based on High‐Resolution ELFIN Measurements journal April 2022
Localized Excitation of Electromagnetic Ion Cyclotron Waves From Anisotropic Protons Filtered by Magnetic Dips journal June 2022
Analysis of Electron Precipitation and Ionospheric Density Enhancements Due To Hiss Using Incoherent Scatter Radar and Arase Observations journal August 2022
Simultaneous Cross‐Energy Ion Response and Wave Generation After the Impact of an Interplanetary Shock journal November 2022
The Importance of Ion Composition for Radiation Belt Modeling journal September 2022
Thinning of the Magnetotail Current Sheet Inferred From Low‐Altitude Observations of Energetic Electrons journal October 2022
Electron Heat Fluxes Generated by Intense Whistler Waves at the Upper Ionospheric Altitudes journal September 2022
Effects of Magnetic Dips on the Propagation of Electromagnetic Ion Cyclotron Waves journal February 2023
Electron Precipitation Observed by ELFIN Using Proton Precipitation as a Proxy for Electromagnetic Ion Cyclotron (EMIC) Waves journal November 2023
A Triggering Process for Nonlinear EMIC Waves Driven by the Compression of the Dayside Magnetosphere journal January 2024
First Results From REPTile‐2 Measurements Onboard CIRBE journal February 2024
High‐Energy Electron Flux Enhancement Pattern in the Outer Radiation Belt in Response to the Interplanetary Coronal Mass Ejections journal November 2023
Prompt Appearance of Large‐Amplitude EMIC Waves Induced by Solar Wind Dynamic Pressure Enhancement and the Subsequent Relativistic Electron Precipitation journal July 2023
Expected EMIC Wave Generation and Unexpected MS Wave Disruption in a Magnetic Dip journal August 2023
Direct Observation of Rising‐Tone Chorus Triggered by Enhanced Solar Wind Pressure journal November 2023
Enhanced Solar Wind Dynamic Pressure as a Driver of Low‐Energy Proton Temperature Anisotropies and High‐Frequency EMIC Waves journal September 2023
Relativistic Electron Precipitation Driven by Mesoscale Transients, Inferred From Ground and Multi‐Spacecraft Platforms journal February 2024
Interplanetary origin of geomagnetic activity in the declining phase of the solar cycle
  • Tsurutani, Bruce T.; Gonzalez, Walter D.; Gonzalez, Alicia L. C.
  • Journal of Geophysical Research: Space Physics, Vol. 100, Issue A11 https://doi.org/10.1029/95JA01476
journal November 1995
Correlation of changes in the outer-zone relativistic-electron population with upstream solar wind and magnetic field measurements journal April 1997
A new functional form to study the solar wind control of the magnetopause size and shape journal May 1997
Relativistic electron precipitation during magnetic storm main phase journal July 1971
Consequences of a magnetospheric plasma journal January 1969
Limit on stably trapped particle fluxes journal January 1966
Plasma acceleration at the Earth's magnetopause: evidence for reconnection journal November 1979
Transport of solar wind into Earth's magnetosphere through rolled-up Kelvin–Helmholtz vortices journal August 2004
Low-Frequency Whistler Mode journal January 1966
Prominence Eruptions and Coronal Mass Ejection: A Statistical Study Using Microwave Observations journal March 2003
Nonresonant Scattering of Relativistic Electrons by Electromagnetic Ion Cyclotron Waves in Earth’s Radiation Belts journal September 2022
Specification, Design, and Calibration of the Space Weather Suite of Instruments on the NOAA GOES-R Program Spacecraft journal December 2015
Electron-scale measurements of magnetic reconnection in space journal May 2016
Interaction of Relativistic Electrons with Packets of the Electromagnetic Ion Cyclotron Waves of Finite Length and Low Amplitude journal July 2023
Corotating and Transient Solar wind Flows in Three Dimensions journal September 1996
Gap formation around Ωe/2 and generation of low-band whistler waves by Landau-resonant electrons in the magnetosphere: Predictions from dispersion theory journal January 2020
Electron Microbursts Induced by Nonducted Chorus Waves journal October 2021
Effect of Solar Wind Pressure and Substorm Linked Particle Injection on Local Time Distribution of Electromagnetic Ion Cyclotron Waves journal April 2022
Investigation of the drivers and atmospheric impacts of energetic electron precipitation journal March 2023
Parametric analysis of pitch angle scattering and losses of relativistic electrons by oblique EMIC waves journal April 2023
Simulation of radiation belt wave-particle interactions in an MHD-particle framework journal September 2023