DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ion Injection Triggered EMIC Waves in the Earth's Magnetosphere

Journal Article · · Journal of Geophysical Research. Space Physics
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [7]
  1. Indian Inst. of Geomagnetism, Navi, Mumbai (India); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Catholic Univ. of America, Washington DC (United States)
  2. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  3. Aerospace Corporation, Chantilly (United States). Space Sciences Dept.
  4. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of Maryland, College Park, MD (United States). Dept. of Astronomy
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Space Weather Prediction Center
  7. Univ. of Minnesota, Minneapolis, MN (United States). School of Physics and Astronomy
  8. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Catholic Univ. of America, Washington DC (United States)

We present Van Allen Probe observations of electromagnetic ion cyclotron (EMIC) waves triggered solely due to individual substorm-injected ions in the absence of storms or compressions of the magnetosphere during 9 August 2015. The time at which the injected ions are observed directly corresponds to the onset of EMIC waves at the location of Van Allen Probe A (L = 5.5 and 18:06 magnetic local time). The injection was also seen at geosynchronous orbit by the Geostationary Operational Environmental Satellite and Los Alamos National Laboratory spacecraft, and the westward(eastward) drift of ions(electrons) was monitored by Los Alamos National Laboratory spacecraft at different local times. The azimuthal location of the injection was determined by tracing the injection signatures backward in time to their origin assuming a dipolar magnetic field of Earth. The center of this injection location was determined to be close to ~20:00 magnetic local time. Geostationary Operational Environmental Satellite and ground magnetometer responses confirm substorm onset at approximately the same local time. The observed EMIC wave onsets at Van Allen Probe were also associated with a magnetic field decrease. The arrival of anisotropic ions along with the decrease in the magnetic field favors the growth of the EMIC wave instability based on linear theory analysis.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); USDOE
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1485391
Report Number(s):
LA-UR--18-25089
Journal Information:
Journal of Geophysical Research. Space Physics, Journal Name: Journal of Geophysical Research. Space Physics Journal Issue: 6 Vol. 123; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (67)

Cold electron heating by EMIC waves in the plasmaspheric plume with observations of the Cluster satellite journal March 2014
Observations of coincident EMIC wave activity and duskside energetic electron precipitation on 18-19 January 2013: EMIC Waves and Electron Precipitation journal July 2015
Multiple-Satellite Observation of Magnetic Dip Event During the Substorm on 10 October 2013: OBSERVATION OF MAGNETIC DIP journal September 2017
Multipoint Observations of Energetic Particle Injections and Substorm Activity During a Conjunction Between Magnetospheric Multiscale (MMS) and Van Allen Probes: Observations of Particle Injections journal November 2017
The THEMIS Array of Ground-based Observatories for the Study of Auroral Substorms book January 2009
The THEMIS Mission book January 2009
The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission book January 2013
An Overview of Magnetospheric Dynamics book January 1976
Substorm aspects of magnetic pulsations journal September 1970
The THEMIS Mission journal April 2008
The THEMIS Array of Ground-based Observatories for the Study of Auroral Substorms journal June 2008
The Upgraded CARISMA Magnetometer Array in the THEMIS Era journal December 2008
Science Goals and Overview of the Radiation Belt Storm Probes (RBSP) Energetic Particle, Composition, and Thermal Plasma (ECT) Suite on NASA’s Van Allen Probes Mission journal October 2013
The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission journal October 2013
Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission journal March 2013
The Magnetic Electron Ion Spectrometer (MagEIS) Instruments Aboard the Radiation Belt Storm Probes (RBSP) Spacecraft journal June 2013
The Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) on RBSP journal June 2013
Polar and magnetospheric substorms journal January 1970
Geomagnetic micropulsations journal December 1970
A comparison between simultaneous I.P.D.P. groundbased observations and observations of energetic protons obtained by satellites journal April 1980
Pc1 wave generation by sudden impulses journal March 1983
Multistation correlation of ULF pulsation spectra associated with sudden impulses journal June 1986
A study of polarization of irregular pulsations of diminishing period and their generation mechanism journal August 1992
Observations of electromagnetic ion cyclotron waves during geomagnetic storms: Wave occurrence and pitch angle scattering journal March 2001
Modeling ring current proton precipitation by electromagnetic ion cyclotron waves during the May 14-16, 1997, storm journal January 2001
Observations of two types of Pc 1-2 pulsations in the outer dayside magnetosphere: OBSERVATIONS OF PC 1-2 PULSATIONS journal December 2002
Statistical analysis of relativistic electron energies for cyclotron resonance with EMIC waves observed on CRRES journal January 2003
Substorm onset observations by IMAGE-FUV journal January 2004
Modeling the dynamics of the inner magnetosphere during strong geomagnetic storms journal January 2005
Contribution of charge exchange loss to the storm time ring current decay: IMAGE/HENA observations journal January 2006
Self-consistent model of magnetospheric ring current and propagating electromagnetic ion cyclotron waves: Waves in multi-ion magnetosphere journal January 2006
Pc1-Pc2 waves and energetic particle precipitation during and after magnetic storms: Superposed epoch analysis and case studies: Pc1-Pc2 WAVES AND PRECIPITATION journal January 2008
Dynamic evolution of energetic outer zone electrons due to wave-particle interactions during storms: EVOLUTION OF ENERGETIC ELECTRONS journal October 2007
Characteristics of low-latitude Pc1 pulsations during geomagnetic storms: LOW-LATITUDE STORM TIME PC1 PULSATIONS journal April 2008
Precipitation of radiation belt electrons by EMIC waves, observed from ground and space journal January 2008
Relativistic electron precipitation by EMIC waves from self-consistent global simulations: EMIC WAVES AND RELATIVISTIC ELECTRONS journal March 2008
Probing the relationship between electromagnetic ion cyclotron waves and plasmaspheric plumes near geosynchronous orbit: EMIC WAVES AND PLASMASPHERIC PLUMES journal November 2010
EMIC wave activity during geomagnetic storm and nonstorm periods: CRRES results: EMIC DURING CRRES STORMS journal December 2010
Global distribution of EMIC waves derived from THEMIS observations: GLOBAL DISTRIBUTION OF EMIC WAVES journal May 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
Numerical tracing of energetic particle drifts in a model magnetosphere journal August 1991
A statistical study of Pc 1-2 magnetic pulsations in the equatorial magnetosphere: 1. Equatorial occurrence distributions journal March 1992
Ion cyclotron emissions observed by the satellite Akebono in the vicinity of the magnetic equator journal March 1992
The contribution of ion-cyclotron waves to electron heating and SAR-arc excitation near the storm-time plasmapause journal February 1992
Electromagnetic ion cyclotron waves stimulated by modest magnetospheric compressions journal January 1993
Ion cyclotron waves during a great magnetic storm observed by Freja double-probe electric field instrument journal March 1998
Some basic concepts of wave-particle interactions in collisionless plasmas journal November 1997
Relativistic theory of wave-particle resonant diffusion with application to electron acceleration in the magnetosphere journal September 1998
Intensity variation of ELF hiss and chorus during isolated substorms journal September 1974
Pc 1 micropulsation activity and magnetospheric amplification of 0.2- to 5.0-Hz hydromagnetic waves journal January 1969
Turbulent loss of ring current protons journal September 1970
Growth phase of magnetospheric substorms journal October 1970
Relativistic electron precipitation during magnetic storm main phase journal July 1971
Electromagnetic ion-cyclotron instabilities in multicomponent magnetospheric plasmas journal November 1971
Occurrence of IPDP events accompanied by cosmic noise absorption in the course of proton aurora substorms journal July 1973
Periodically structured Pc 1 micropulsations during the recovery phase of intense magnetic storms journal September 1973
An approximate analytic description of plasma bulk parameters, and pitch angle anisotropy under adiabatic flow, in a dipolar magnetospheric field journal June 1975
Effects of energetic heavy ions on electromagnetic ion cyclotron wave generation in the plasmapause region journal January 1984
Substorm effects on spectral structures of Pc 1 waves at synchronous orbit journal January 1987
Viking magnetic and electric field observations of Pc 1 waves at high latitudes journal January 1990
Enhancement of hydromagnetic emissions after geomagnetic storms journal June 1964
Cyclotron instabilities and electromagnetic emission in the ultra low frequency and very low frequency ranges journal January 1965
Limit on stably trapped particle fluxes journal January 1966
Evening micropulsation events with a rising midfrequency characteristic journal January 1967
Geomagnetic Micropulsations journal January 1960
Monitoring space weather with the GOES magnetometers
  • Singer, Howard; Matheson, Lorne; Grubb, Richard
  • SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings https://doi.org/10.1117/12.254077
conference October 1996
Energetic particle counterparts for geomagnetic pulsations of Pc1 and IPDP types journal January 2003

Cited By (6)

Modulation of Electromagnetic Ion Cyclotron Waves by Pc5 ULF Waves and Energetic Ring Current Ions journal March 2019
The Effects of Localized Thermal Pressure on Equilibrium Magnetic Fields and Particle Drifts in The Inner Magnetosphere journal July 2019
Generation of EMIC Waves and Effects on Particle Precipitation During a Solar Wind Pressure Intensification With B z >0 journal June 2019
Multi‐instrument Observations of Mesoscale Enhancement of Subauroral Polarization Stream Associated With an Injection journal March 2019
Precipitation of MeV and Sub‐MeV Electrons Due to Combined Effects of EMIC and ULF Waves journal October 2019
Propagation of EMIC Waves Inside the Plasmasphere: A Two‐Event Study journal November 2019