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Title: Energization of the Ring Current by Substorms

Abstract

The substorm process releases large amounts of energy into the magnetospheric system, although where the energy is transferred to and how it is partitioned remains an open question. In this study, we address whether the substorm process contributes a significant amount of energy to the ring current. The ring current is a highly variable region, and understanding the energization processes provides valuable insight into how substorm-ring current coupling may contribute to the generation of storm conditions and provide a source of energy for wave driving. In order to quantify the energy input into the ring current during the substorm process, we analyze Radiation Belt Storm Probes Ion Composition Experiment and Helium Oxygen Proton Electron ion flux measurements for H+, O+, and He+. The energy content of the ring current is estimated and binned spatially for L and magnetic local time. The results are combined with an independently derived substorm event list to perform a statistical analysis of variations in the ring current energy content with substorm phase. We show that the ring current energy is significantly higher in the expansion phase compared to the growth phase, with the energy enhancement persisting into the substorm recovery phase. The characteristics of themore » energy enhancement suggest the injection of energized ions from the tail plasma sheet following substorm onset. The local time variations indicate a loss of energetic H+ ions in the afternoon sector, likely due to wave-particle interactions. Overall, we find that the average energy input into the ring current is ~9% of the previously reported energy released during substorms.« less

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [6]
  1. Univ. College London (United Kingdom). Dept. of Space and Climate Physics. Mullard Space Science Lab.
  2. British Antarctic Survey, Cambridge (United Kingdom)
  3. Johns Hopkins Univ., Baltimore, MD (United States). Applied Physics Lab.
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Univ. of New Hampshire, Durham, NH (United States). Inst. for the Study of Earth, Oceans, and Space
  6. Univ. of Southampton (United Kingdom). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; National Aeronautic and Space Administration (NASA); Science and Technology Facilities Council (STFC) (United Kingdom); Natural Environment Research Council (NERC) (United Kingdom)
OSTI Identifier:
1484669
Report Number(s):
LA-UR-18-28975
Journal ID: ISSN 2169-9380
Grant/Contract Number:  
89233218CNA000001; NNN06AA01C; NAS5-01072; ST/N0007722/1; NE/L007495/1; NE/N014480/1; NE/L007177/1
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Space Physics
Additional Journal Information:
Journal Volume: 123; Journal Issue: 10; Journal ID: ISSN 2169-9380
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Heliospheric and Magnetospheric Physics

Citation Formats

Sandhu, J. K., Rae, I. J., Freeman, M. P., Forsyth, C., Gkioulidou, M., Reeves, G. D., Spence, H. E., Jackman, C. M., and Lam, M. M. Energization of the Ring Current by Substorms. United States: N. p., 2018. Web. doi:10.1029/2018JA025766.
Sandhu, J. K., Rae, I. J., Freeman, M. P., Forsyth, C., Gkioulidou, M., Reeves, G. D., Spence, H. E., Jackman, C. M., & Lam, M. M. Energization of the Ring Current by Substorms. United States. doi:10.1029/2018JA025766.
Sandhu, J. K., Rae, I. J., Freeman, M. P., Forsyth, C., Gkioulidou, M., Reeves, G. D., Spence, H. E., Jackman, C. M., and Lam, M. M. Mon . "Energization of the Ring Current by Substorms". United States. doi:10.1029/2018JA025766. https://www.osti.gov/servlets/purl/1484669.
@article{osti_1484669,
title = {Energization of the Ring Current by Substorms},
author = {Sandhu, J. K. and Rae, I. J. and Freeman, M. P. and Forsyth, C. and Gkioulidou, M. and Reeves, G. D. and Spence, H. E. and Jackman, C. M. and Lam, M. M.},
abstractNote = {The substorm process releases large amounts of energy into the magnetospheric system, although where the energy is transferred to and how it is partitioned remains an open question. In this study, we address whether the substorm process contributes a significant amount of energy to the ring current. The ring current is a highly variable region, and understanding the energization processes provides valuable insight into how substorm-ring current coupling may contribute to the generation of storm conditions and provide a source of energy for wave driving. In order to quantify the energy input into the ring current during the substorm process, we analyze Radiation Belt Storm Probes Ion Composition Experiment and Helium Oxygen Proton Electron ion flux measurements for H+, O+, and He+. The energy content of the ring current is estimated and binned spatially for L and magnetic local time. The results are combined with an independently derived substorm event list to perform a statistical analysis of variations in the ring current energy content with substorm phase. We show that the ring current energy is significantly higher in the expansion phase compared to the growth phase, with the energy enhancement persisting into the substorm recovery phase. The characteristics of the energy enhancement suggest the injection of energized ions from the tail plasma sheet following substorm onset. The local time variations indicate a loss of energetic H+ ions in the afternoon sector, likely due to wave-particle interactions. Overall, we find that the average energy input into the ring current is ~9% of the previously reported energy released during substorms.},
doi = {10.1029/2018JA025766},
journal = {Journal of Geophysical Research. Space Physics},
number = 10,
volume = 123,
place = {United States},
year = {2018},
month = {9}
}

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Works referenced in this record:

Association of substorm chorus events with drift echoes
journal, January 2006

  • Abel, G. A.; Freeman, M. P.; Smith, A. J.
  • Journal of Geophysical Research, Vol. 111, Issue A11
  • DOI: 10.1029/2006JA011860

The Growth of the Storm-Time Radiation Belt and the Magnetospheric Substorm
journal, June 1968


Magnetic storms and magnetotail currents
journal, April 1996

  • Alexeev, I. I.; Belenkaya, E. S.; Kalegaev, V. V.
  • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A4
  • DOI: 10.1029/95JA03509

A statistical study of Pc 3–5 pulsations observed by the AMPTE/CCE Magnetic Fields Experiment, 1. Occurrence distributions
journal, January 1990

  • Anderson, B. J.; Engebretson, M. J.; Rounds, S. P.
  • Journal of Geophysical Research, Vol. 95, Issue A7
  • DOI: 10.1029/JA095iA07p10495

Modeling the contributions of ring, tail, and magnetopause currents to the corrected Dst index : CONTRIBUTIONS TO CORRECTED
journal, December 2010

  • Asikainen, T.; Maliniemi, V.; Mursula, K.
  • Journal of Geophysical Research: Space Physics, Vol. 115, Issue A12
  • DOI: 10.1029/2010JA015774

Inward motion of the magnetopause before a substorm
journal, December 1970

  • Aubry, Michel P.; Russell, Christopher T.; Kivelson, Margaret G.
  • Journal of Geophysical Research, Vol. 75, Issue 34
  • DOI: 10.1029/JA075i034p07018

Neutral line model of substorms: Past results and present view
journal, June 1996

  • Baker, D. N.; Pulkkinen, T. I.; Angelopoulos, V.
  • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A6
  • DOI: 10.1029/95JA03753

Magnetic storm injection of 0.9- to 16-keV/e solar and terrestrial ions into the high-altitude magnetosphere
journal, January 1980

  • Balsiger, H.; Eberhardt, P.; Geiss, J.
  • Journal of Geophysical Research, Vol. 85, Issue A4
  • DOI: 10.1029/JA085iA04p01645

The near-Earth plasma sheet: An AMPTE/IRM perspective
journal, January 1993


Supplementary sources of geomagnetic depression during the geomagnetic storm of 8–9 February 1986
journal, June 1994


Characteristic plasma properties during dispersionless substorm injections at geosynchronous orbit
journal, February 1997

  • Birn, J.; Thomsen, M. F.; Borovsky, J. E.
  • Journal of Geophysical Research: Space Physics, Vol. 102, Issue A2
  • DOI: 10.1029/96JA02870

A statistical study of the open magnetic flux content of the magnetosphere at the time of substorm onset
journal, January 2009

  • Boakes, P. D.; Milan, S. E.; Abel, G. A.
  • Geophysical Research Letters, Vol. 36, Issue 4
  • DOI: 10.1029/2008GL037059

An empirical relationship between interplanetary conditions and Dst
journal, November 1975

  • Burton, R. K.; McPherron, R. L.; Russell, C. T.
  • Journal of Geophysical Research, Vol. 80, Issue 31
  • DOI: 10.1029/JA080i031p04204

The field levels near midnight at low and equatorial geomagnetic stations
journal, June 1973


Dst is not a pure ring-current index
journal, January 1996

  • Campbell, Wallace H.
  • Eos, Transactions American Geophysical Union, Vol. 77, Issue 30
  • DOI: 10.1029/96EO00204

Failure of Dst index fields to represent a ring current
journal, August 2004


EMIC waves observed at geosynchronous orbit during solar minimum: Statistics and excitation: EMIC WAVES AT GEOSYNCHRONOUS ORBIT
journal, October 2011

  • Clausen, L. B. N.; Baker, J. B. H.; Ruohoniemi, J. M.
  • Journal of Geophysical Research: Space Physics, Vol. 116, Issue A10
  • DOI: 10.1029/2011JA016823

Cyclotron instabilities and electromagnetic emission in the ultra low frequency and very low frequency ranges
journal, January 1965


Adiabatic plasma convection in a dipole field: Proton forbidden-zone effects for a simple electric field model
journal, September 1976


Ring Current Dynamics
journal, December 2006


Fast ionospheric response to enhanced activity in geospace: Ion feeding of the inner magnetotail
journal, March 1996

  • Daglis, Ioannis A.; Axford, W. Ian
  • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A3
  • DOI: 10.1029/95JA02592

Particle Acceleration in the Frame of the Storm–Substorm Relation
journal, August 2004

  • Daglis, I. A.; Delcourt, D.; Metallinou, F. -A.
  • IEEE Transactions on Plasma Science, Vol. 32, Issue 4
  • DOI: 10.1109/TPS.2004.831736

Energy density of ionospheric and solar wind origin ions in the near-Earth magnetotail during substorms
journal, January 1994

  • Daglis, Ioannis A.; Livi, Stefano; Sarris, Emmanuel T.
  • Journal of Geophysical Research, Vol. 99, Issue A4
  • DOI: 10.1029/93JA02772

The terrestrial ring current: Origin, formation, and decay
journal, November 1999

  • Daglis, Ioannis A.; Thorne, Richard M.; Baumjohann, Wolfgang
  • Reviews of Geophysics, Vol. 37, Issue 4
  • DOI: 10.1029/1999RG900009

Particle acceleration by inductive electric fields in the inner magnetosphere
journal, March 2002


Hydromagnetic theory of geomagnetic storms
journal, December 1959


Observations of electromagnetic ion cyclotron waves during geomagnetic storms: Wave occurrence and pitch angle scattering
journal, March 2001

  • Erlandson, R. E.; Ukhorskiy, A. J.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A3
  • DOI: 10.1029/2000JA000083

Modeling of inner plasma sheet and ring current during substorms
journal, July 1999

  • Fok, Mei-Ching; Moore, Thomas E.; Delcourt, Dominique C.
  • Journal of Geophysical Research: Space Physics, Vol. 104, Issue A7
  • DOI: 10.1029/1999JA900014

Three-Dimensional Ring Current Decay Model
journal, January 1995

  • Fok, Mei-Ching; Moore, Thomas E.; Kozyra, Janet U.
  • Journal of Geophysical Research, Vol. 100, Issue A6
  • DOI: 10.1029/94JA03029

Increases in plasma sheet temperature with solar wind driving during substorm growth phases: Growth Phase PS Temperature
journal, December 2014

  • Forsyth, C.; Watt, C. E. J.; Rae, I. J.
  • Geophysical Research Letters, Vol. 41, Issue 24
  • DOI: 10.1002/2014GL062400

Composition signatures in ion injections and its dependence on geomagnetic conditions
journal, January 2002


Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission
journal, March 2013


Defining and resolving current systems in geospace
journal, January 2015


Role of substorm-associated impulsive electric fields in the ring current development during storms
journal, January 2005


The SuperMAG data processing technique: TECHNIQUE
journal, September 2012

  • Gjerloev, J. W.
  • Journal of Geophysical Research: Space Physics, Vol. 117, Issue A9
  • DOI: 10.1029/2012JA017683

Storm time dynamics of ring current protons: Implications for the long‐term energy budget in the inner magnetosphere
journal, May 2016

  • Gkioulidou, Matina; Ukhorskiy, A. Y.; Mitchell, D. G.
  • Geophysical Research Letters, Vol. 43, Issue 10
  • DOI: 10.1002/2016GL068013

First composition measurement of the bulk of the storm-time ring current (1 to 300 keV/e) with AMPTE-CCE
journal, May 1985

  • Gloeckler, G.; Wilken, B.; Stüdemann, W.
  • Geophysical Research Letters, Vol. 12, Issue 5
  • DOI: 10.1029/GL012i005p00325

Dual-peak solar cycle distribution of intense geomagnetic storms
journal, February 1990


A test of the Dessler-Parker-Sckopke relation during magnetic storms
journal, March 2000

  • Greenspan, M. E.; Hamilton, D. C.
  • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A3
  • DOI: 10.1029/1999JA000284

Survey of dispersionless substorm ion injections observed by CRRES
journal, January 1998


Ring current development during the great geomagnetic storm of February 1986
journal, January 1988

  • Hamilton, D. C.; Gloeckler, G.; Ipavich, F. M.
  • Journal of Geophysical Research, Vol. 93, Issue A12
  • DOI: 10.1029/JA093iA12p14343

Higher-order ring currents and particle energy storage in the magnetosphere
journal, December 1967


Nonadiabatic heating of the central plasma sheet at substorm onset
journal, January 1992

  • Huang, C. Y.; Frank, L. A.; Rostoker, G.
  • Journal of Geophysical Research, Vol. 97, Issue A2
  • DOI: 10.1029/91JA02517

Storm-time magnetospheric currents inferred from mid-latitude geomagnetic field variations.
journal, January 1990

  • Iyemori, Toshihiko
  • Journal of geomagnetism and geoelectricity, Vol. 42, Issue 11
  • DOI: 10.5636/jgg.42.1249

Collisional losses of ring current ions
journal, January 1996

  • Jordanova, V. K.; Kistler, L. M.; Kozyra, J. U.
  • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A1
  • DOI: 10.1029/95JA02000

Global energetic neutral atom (ENA) measurements and their association with the Dst index
journal, December 1997

  • Jorgensen, A. M.; Spence, H. E.; Henderson, M. G.
  • Geophysical Research Letters, Vol. 24, Issue 24
  • DOI: 10.1029/97GL03095

Is Substorm Occurrence a Necessary Condition for a Magnetic Storm?
journal, January 1992

  • Kamide, Y.
  • Journal of geomagnetism and geoelectricity, Vol. 44, Issue 2
  • DOI: 10.5636/jgg.44.109

Spatial variations in the suprathermal ion distributions during substorms in the plasma sheet
journal, January 1990

  • Kistler, L. M.; Möbius, E.; Klecker, B.
  • Journal of Geophysical Research, Vol. 95, Issue A11
  • DOI: 10.1029/JA095iA11p18871

The Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) on RBSP
journal, June 2013


Magnetic storm of September 4, 1984: A synthesis of ring current spectra and energy densities measured with AMPTE/CCE
journal, May 1985

  • Krimigis, S. M.; Gloeckler, G.; McEntire, R. W.
  • Geophysical Research Letters, Vol. 12, Issue 5
  • DOI: 10.1029/GL012i005p00329

Deformation of a magnetic dipole field by trapped particles
journal, June 1970


A two-component solar cycle
journal, January 1991


Substorm effects on the plasma sheet ion composition on March 22, 1979 (CDAW 6)
journal, January 1985

  • Lennartsson, W.; Sharp, R. D.; Zwickl, R. D.
  • Journal of Geophysical Research, Vol. 90, Issue A2
  • DOI: 10.1029/JA090iA02p01243

Yet another caveat to using the Dessler-Parker-Sckopke relation
journal, January 2003


Lognormal form of the ring current energy content
journal, May 2003


Analysis of early phase ring current recovery mechanisms during geomagnetic storms
journal, September 1999

  • Liemohn, M. W.; Kozyra, J. U.; Jordanova, V. K.
  • Geophysical Research Letters, Vol. 26, Issue 18
  • DOI: 10.1029/1999GL900611

Dominant role of the asymmetric ring current in producing the stormtime Dst *
journal, June 2001

  • Liemohn, M. W.; Kozyra, J. U.; Thomsen, M. F.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A6
  • DOI: 10.1029/2000JA000326

Relative contribution of electrons to the stormtime total ring current energy content
journal, January 2005


The energetic ion substorm injection boundary
journal, January 1990

  • Lopez, R. E.; Sibeck, D. G.; McEntire, R. W.
  • Journal of Geophysical Research, Vol. 95, Issue A1
  • DOI: 10.1029/JA095iA01p00109

Current controversies in magnetospheric physics
journal, November 2001


Science Objectives and Rationale for the Radiation Belt Storm Probes Mission
journal, September 2012


Correlation of Kp with the substorm-injected plasma boundary
journal, August 1974

  • Mauk, Barry H.; McIlwain, Carl E.
  • Journal of Geophysical Research, Vol. 79, Issue 22
  • DOI: 10.1029/JA079i022p03193

An experimental test of the electromagnetic ion cyclotron instability within the earth’s magnetosphere
journal, January 1980

  • Mauk, B. H.; McPherron, R. L.
  • Physics of Fluids, Vol. 23, Issue 10
  • DOI: 10.1063/1.862873

Growth phase of magnetospheric substorms
journal, October 1970


Variation of the magnetopause position with substorm activity
journal, June 1970


Magnetic flux transport in the Dungey cycle: A survey of dayside and nightside reconnection rates: FLUX TRANSPORT IN THE DUNGEY CYCLE
journal, January 2007

  • Milan, S. E.; Provan, G.; Hubert, B.
  • Journal of Geophysical Research: Space Physics, Vol. 112, Issue A1
  • DOI: 10.1029/2006JA011642

Empirical model of proton fluxes in the equatorial inner magnetosphere: Development
journal, November 2001

  • Milillo, A.; Orsini, S.; Daglis, I. A.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A11
  • DOI: 10.1029/2000JA900158

Global distribution of EMIC waves derived from THEMIS observations: GLOBAL DISTRIBUTION OF EMIC WAVES
journal, May 2012

  • Min, Kyungguk; Lee, Jeongwoo; Keika, Kunihiro
  • Journal of Geophysical Research: Space Physics, Vol. 117, Issue A5
  • DOI: 10.1029/2012JA017515

Global imaging of O + from IMAGE/HENA
journal, January 2003


Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE)
journal, April 2013


Multipoint observations of Pc1-2 waves in the afternoon sector: MULTIPOINT OBSERVATIONS OF PC1-2
journal, September 2009

  • Morley, Steven K.; Ables, Sean T.; Sciffer, Murray D.
  • Journal of Geophysical Research: Space Physics, Vol. 114, Issue A9
  • DOI: 10.1029/2009JA014162

Evaluation of SuperMAG auroral electrojet indices as indicators of substorms and auroral power: SUPERMAG AURORAL ELECTROJET INDICES
journal, December 2011

  • Newell, P. T.; Gjerloev, J. W.
  • Journal of Geophysical Research: Space Physics, Vol. 116, Issue A12
  • DOI: 10.1029/2011JA016779

Estimation of magnetic field mapping accuracy using the pulsating aurora-chorus connection: MAGNETIC MAPPING WITH CHORUS AND AURORA
journal, July 2011

  • Nishimura, Y.; Bortnik, J.; Li, W.
  • Geophysical Research Letters, Vol. 38, Issue 14
  • DOI: 10.1029/2011GL048281

Overwhelming O + contribution to the plasma sheet energy density during the October 2003 superstorm: Geotail/EPIC and IMAGE/LENA observations : O
journal, August 2005

  • Nosé, M.; Taguchi, S.; Hosokawa, K.
  • Journal of Geophysical Research: Space Physics, Vol. 110, Issue A9
  • DOI: 10.1029/2004JA010930

An empirical phase space analysis of ring current dynamics: Solar wind control of injection and decay
journal, April 2000

  • O'Brien, T. Paul; McPherron, Robert L.
  • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A4
  • DOI: 10.1029/1998JA000437

Storm-substorm relationship: Contribution of the tail current to Dst
journal, October 2001

  • Ohtani, S.; Nosé, M.; Rostoker, G.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A10
  • DOI: 10.1029/2000JA000400

Modeling the properties of high- m Alfvén waves driven by the drift-bounce resonance mechanism
journal, August 2001

  • Ozeke, L. G.; Mann, I. R.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A8
  • DOI: 10.1029/2000JA000393

Multi-satellite measurements of the substorm injection region
journal, October 1990

  • Reeves, G. D.; Fritz, T. A.; Cayton, T. E.
  • Geophysical Research Letters, Vol. 17, Issue 11
  • DOI: 10.1029/GL017i011p02015

The storm-substorm relationship: Ion injections in geosynchronous measurements and composite energetic neutral atom images
journal, April 2001

  • Reeves, G. D.; Henderson, M. G.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A4
  • DOI: 10.1029/2000JA003017

OGO 3 observations of ELF noise in the magnetosphere: 2. The nature of the equatorial noise
journal, February 1970

  • Russell, Christopher T.; Holzer, Robert E.; Smith, Edward J.
  • Journal of Geophysical Research, Vol. 75, Issue 4
  • DOI: 10.1029/JA075i004p00755

The magnetotail and substorms
journal, January 1973

  • Russell, C. T.; McPherron, R. L.
  • Space Science Reviews, Vol. 15, Issue 2-3
  • DOI: 10.1007/BF00169321

Observations of magnetospheric bursts of high-energy protons and electrons at ∼35 R E with Imp 7
journal, May 1976

  • Sarris, E. T.; Krimigis, S. M.; Armstrong, T. P.
  • Journal of Geophysical Research, Vol. 81, Issue 13
  • DOI: 10.1029/JA081i013p02341

A general relation between the energy of trapped particles and the disturbance field near the Earth
journal, July 1966


On storm weakening during substorm expansion phase
journal, January 1997


Inference of the ring current ion composition by means of charge exchange decay
journal, January 1981

  • Smith, Paul H.; Bewtra, N. K.; Hoffman, R. A.
  • Journal of Geophysical Research, Vol. 86, Issue A5
  • DOI: 10.1029/JA086iA05p03470

A general approach to low-frequency instability in the ring current plasma
journal, July 1976


Bounce resonant interaction between pulsations and trapped particles
journal, March 1969


A self consistent ring current in the earth's dipole field
journal, March 1969


Non-linear symmetric inflation of a magnetic dipole
journal, May 1969


Satellite-Measured Radiation
journal, May 1959


What do we expect in magnetic activity in the current solar cycle?
journal, January 1980


On the formation of the storm-time ring current belt
journal, March 2000

  • Sun, W.; Akasofu, S. -I.
  • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A3
  • DOI: 10.1029/1999JA000339

Dayside magnetopause models
journal, October 1999


Azimuthal propagation and frequency characteristic of compressional Pc 5 waves observed at geostationary orbit
journal, January 1985

  • Takahashi, Kazue; Higbie, Paul R.; Baker, Daniel N.
  • Journal of Geophysical Research, Vol. 90, Issue A2
  • DOI: 10.1029/JA090iA02p01473

A simulation of the storm-time ring current
journal, September 1990


Substorm energy budget during low and high solar activity: 1997 and 1999 compared
journal, January 2002


Two-satellite observations of substorm injections at geosynchronous orbit
journal, May 2001

  • Thomsen, M. F.; Birn, J.; Borovsky, J. E.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A5
  • DOI: 10.1029/2000JA000080

Modeling the Earth's magnetospheric magnetic field confined within a realistic magnetopause
journal, January 1995

  • Tsyganenko, N. A.
  • Journal of Geophysical Research, Vol. 100, Issue A4
  • DOI: 10.1029/94JA03193

Data-based modelling of the Earth's dynamic magnetosphere: a review
journal, January 2013


Modeling the dynamics of the inner magnetosphere during strong geomagnetic storms
journal, January 2005


Magnetospheric configurations from a high-resolution data-based magnetic field model: MAGNETOSPHERIC HIGH-RESOLUTION MODEL
journal, June 2007

  • Tsyganenko, N. A.; Sitnov, M. I.
  • Journal of Geophysical Research: Space Physics, Vol. 112, Issue A6
  • DOI: 10.1029/2007JA012260

Evaluation of the tail current contribution to Dst
journal, March 2000

  • Turner, N. E.; Baker, D. N.; Pulkkinen, T. I.
  • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A3
  • DOI: 10.1029/1999JA000248

Influence of the solar wind dynamic pressure on the decay and injection of the ring current
journal, January 2003


Ring current composition and sources: An update
journal, November 1981


A comprehensive investigation of compressional ULF waves observed in the ring current
journal, January 1990


Experimental evidence on the role of the large spatial scale electric field in creating the ring current
journal, December 1998

  • Wygant, J.; Rowland, D.; Singer, H. J.
  • Journal of Geophysical Research: Space Physics, Vol. 103, Issue A12
  • DOI: 10.1029/98JA01436

Correlations of magnetospheric ion composition with geomagnetic and solar activity
journal, January 1982

  • Young, D. T.; Balsiger, H.; Geiss, J.
  • Journal of Geophysical Research, Vol. 87, Issue A11
  • DOI: 10.1029/JA087iA11p09077

In situ observations of EMIC waves in O + band by the Van Allen Probe A
journal, March 2015

  • Yu, Xiongdong; Yuan, Zhigang; Wang, Dedong
  • Geophysical Research Letters, Vol. 42, Issue 5
  • DOI: 10.1002/2015GL063250

    Works referencing / citing this record:

    Is Substorm Occurrence a Necessary Condition for a Magnetic Storm?
    journal, January 1992

    • Kamide, Y.
    • Journal of geomagnetism and geoelectricity, Vol. 44, Issue 2
    • DOI: 10.5636/jgg.44.109

    Correlations of magnetospheric ion composition with geomagnetic and solar activity
    journal, January 1982

    • Young, D. T.; Balsiger, H.; Geiss, J.
    • Journal of Geophysical Research, Vol. 87, Issue A11
    • DOI: 10.1029/ja087ia11p09077

    Substorm energy budget during low and high solar activity: 1997 and 1999 compared
    journal, January 2002


    An experimental test of the electromagnetic ion cyclotron instability within the earth’s magnetosphere
    journal, January 1980

    • Mauk, B. H.; McPherron, R. L.
    • Physics of Fluids, Vol. 23, Issue 10
    • DOI: 10.1063/1.862873

    Non-linear symmetric inflation of a magnetic dipole
    journal, May 1969


    Satellite-Measured Radiation
    journal, May 1959


    A self consistent ring current in the earth's dipole field
    journal, March 1969


    Role of substorm-associated impulsive electric fields in the ring current development during storms
    journal, January 2005


    Correlation of Kp with the substorm-injected plasma boundary
    journal, August 1974

    • Mauk, Barry H.; McIlwain, Carl E.
    • Journal of Geophysical Research, Vol. 79, Issue 22
    • DOI: 10.1029/ja079i022p03193

    Modeling the contributions of ring, tail, and magnetopause currents to the corrected Dst index : CONTRIBUTIONS TO CORRECTED
    journal, December 2010

    • Asikainen, T.; Maliniemi, V.; Mursula, K.
    • Journal of Geophysical Research: Space Physics, Vol. 115, Issue A12
    • DOI: 10.1029/2010ja015774

    A statistical study of the open magnetic flux content of the magnetosphere at the time of substorm onset
    journal, January 2009

    • Boakes, P. D.; Milan, S. E.; Abel, G. A.
    • Geophysical Research Letters, Vol. 36, Issue 4
    • DOI: 10.1029/2008gl037059

    Nonadiabatic heating of the central plasma sheet at substorm onset
    journal, January 1992

    • Huang, C. Y.; Frank, L. A.; Rostoker, G.
    • Journal of Geophysical Research, Vol. 97, Issue A2
    • DOI: 10.1029/91ja02517

    Inward motion of the magnetopause before a substorm
    journal, December 1970

    • Aubry, Michel P.; Russell, Christopher T.; Kivelson, Margaret G.
    • Journal of Geophysical Research, Vol. 75, Issue 34
    • DOI: 10.1029/ja075i034p07018

    Energy density of ionospheric and solar wind origin ions in the near-Earth magnetotail during substorms
    journal, January 1994

    • Daglis, Ioannis A.; Livi, Stefano; Sarris, Emmanuel T.
    • Journal of Geophysical Research, Vol. 99, Issue A4
    • DOI: 10.1029/93ja02772

    Survey of dispersionless substorm ion injections observed by CRRES
    journal, January 1998


    Ring Current Dynamics
    journal, December 2006


    Particle Acceleration in the Frame of the Storm–Substorm Relation
    journal, August 2004

    • Daglis, I. A.; Delcourt, D.; Metallinou, F. -A.
    • IEEE Transactions on Plasma Science, Vol. 32, Issue 4
    • DOI: 10.1109/tps.2004.831736

    Evaluation of the tail current contribution to Dst
    journal, March 2000

    • Turner, N. E.; Baker, D. N.; Pulkkinen, T. I.
    • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A3
    • DOI: 10.1029/1999ja000248

    Higher-order ring currents and particle energy storage in the magnetosphere
    journal, December 1967


    Influence of the solar wind dynamic pressure on the decay and injection of the ring current
    journal, January 2003


    A simulation of the storm-time ring current
    journal, September 1990


    Modeling the Earth's magnetospheric magnetic field confined within a realistic magnetopause
    journal, January 1995

    • Tsyganenko, N. A.
    • Journal of Geophysical Research, Vol. 100, Issue A4
    • DOI: 10.1029/94ja03193

    Azimuthal propagation and frequency characteristic of compressional Pc 5 waves observed at geostationary orbit
    journal, January 1985

    • Takahashi, Kazue; Higbie, Paul R.; Baker, Daniel N.
    • Journal of Geophysical Research, Vol. 90, Issue A2
    • DOI: 10.1029/ja090ia02p01473

    Collisional losses of ring current ions
    journal, January 1996

    • Jordanova, V. K.; Kistler, L. M.; Kozyra, J. U.
    • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A1
    • DOI: 10.1029/95ja02000

    Multi-satellite measurements of the substorm injection region
    journal, October 1990

    • Reeves, G. D.; Fritz, T. A.; Cayton, T. E.
    • Geophysical Research Letters, Vol. 17, Issue 11
    • DOI: 10.1029/gl017i011p02015

    Relative contribution of electrons to the stormtime total ring current energy content
    journal, January 2005


    Spatial variations in the suprathermal ion distributions during substorms in the plasma sheet
    journal, January 1990

    • Kistler, L. M.; Möbius, E.; Klecker, B.
    • Journal of Geophysical Research, Vol. 95, Issue A11
    • DOI: 10.1029/ja095ia11p18871

    Modeling the properties of high- m Alfvén waves driven by the drift-bounce resonance mechanism
    journal, August 2001

    • Ozeke, L. G.; Mann, I. R.
    • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A8
    • DOI: 10.1029/2000ja000393

    A general approach to low-frequency instability in the ring current plasma
    journal, July 1976


    Modeling of inner plasma sheet and ring current during substorms
    journal, July 1999

    • Fok, Mei-Ching; Moore, Thomas E.; Delcourt, Dominique C.
    • Journal of Geophysical Research: Space Physics, Vol. 104, Issue A7
    • DOI: 10.1029/1999ja900014

    Storm-time magnetospheric currents inferred from mid-latitude geomagnetic field variations.
    journal, January 1990

    • Iyemori, Toshihiko
    • Journal of geomagnetism and geoelectricity, Vol. 42, Issue 11
    • DOI: 10.5636/jgg.42.1249

    Lognormal form of the ring current energy content
    journal, May 2003


    Dst is not a pure ring-current index
    journal, January 1996

    • Campbell, Wallace H.
    • Eos, Transactions American Geophysical Union, Vol. 77, Issue 30
    • DOI: 10.1029/96eo00204

    The near-Earth plasma sheet: An AMPTE/IRM perspective
    journal, January 1993


    Multipoint observations of Pc1-2 waves in the afternoon sector: MULTIPOINT OBSERVATIONS OF PC1-2
    journal, September 2009

    • Morley, Steven K.; Ables, Sean T.; Sciffer, Murray D.
    • Journal of Geophysical Research: Space Physics, Vol. 114, Issue A9
    • DOI: 10.1029/2009ja014162

    Storm-substorm relationship: Contribution of the tail current to Dst
    journal, October 2001

    • Ohtani, S.; Nosé, M.; Rostoker, G.
    • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A10
    • DOI: 10.1029/2000ja000400

    Current controversies in magnetospheric physics
    journal, November 2001


    The magnetotail and substorms
    journal, January 1973

    • Russell, C. T.; McPherron, R. L.
    • Space Science Reviews, Vol. 15, Issue 2-3
    • DOI: 10.1007/bf00169321

    The Growth of the Storm-Time Radiation Belt and the Magnetospheric Substorm
    journal, June 1968


    Global distribution of EMIC waves derived from THEMIS observations: GLOBAL DISTRIBUTION OF EMIC WAVES
    journal, May 2012

    • Min, Kyungguk; Lee, Jeongwoo; Keika, Kunihiro
    • Journal of Geophysical Research: Space Physics, Vol. 117, Issue A5
    • DOI: 10.1029/2012ja017515

    Composition signatures in ion injections and its dependence on geomagnetic conditions
    journal, January 2002


    Dual-peak solar cycle distribution of intense geomagnetic storms
    journal, February 1990


    Dayside magnetopause models
    journal, October 1999


    In situ observations of EMIC waves in O + band by the Van Allen Probe A
    journal, March 2015

    • Yu, Xiongdong; Yuan, Zhigang; Wang, Dedong
    • Geophysical Research Letters, Vol. 42, Issue 5
    • DOI: 10.1002/2015gl063250

    OGO 3 observations of ELF noise in the magnetosphere: 2. The nature of the equatorial noise
    journal, February 1970

    • Russell, Christopher T.; Holzer, Robert E.; Smith, Edward J.
    • Journal of Geophysical Research, Vol. 75, Issue 4
    • DOI: 10.1029/ja075i004p00755

    Neutral line model of substorms: Past results and present view
    journal, June 1996

    • Baker, D. N.; Pulkkinen, T. I.; Angelopoulos, V.
    • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A6
    • DOI: 10.1029/95ja03753

    Experimental evidence on the role of the large spatial scale electric field in creating the ring current
    journal, December 1998

    • Wygant, J.; Rowland, D.; Singer, H. J.
    • Journal of Geophysical Research: Space Physics, Vol. 103, Issue A12
    • DOI: 10.1029/98ja01436

    Deformation of a magnetic dipole field by trapped particles
    journal, June 1970


    The SuperMAG data processing technique: TECHNIQUE
    journal, September 2012

    • Gjerloev, J. W.
    • Journal of Geophysical Research: Space Physics, Vol. 117, Issue A9
    • DOI: 10.1029/2012ja017683

    Growth phase of magnetospheric substorms
    journal, October 1970


    Science Objectives and Rationale for the Radiation Belt Storm Probes Mission
    journal, September 2012


    On the formation of the storm-time ring current belt
    journal, March 2000

    • Sun, W.; Akasofu, S. -I.
    • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A3
    • DOI: 10.1029/1999ja000339

    Data-based modelling of the Earth's dynamic magnetosphere: a review
    journal, January 2013


    A statistical study of Pc 3–5 pulsations observed by the AMPTE/CCE Magnetic Fields Experiment, 1. Occurrence distributions
    journal, January 1990

    • Anderson, B. J.; Engebretson, M. J.; Rounds, S. P.
    • Journal of Geophysical Research, Vol. 95, Issue A7
    • DOI: 10.1029/ja095ia07p10495

    On storm weakening during substorm expansion phase
    journal, January 1997


    The field levels near midnight at low and equatorial geomagnetic stations
    journal, June 1973


    A general relation between the energy of trapped particles and the disturbance field near the Earth
    journal, July 1966


    Modeling the dynamics of the inner magnetosphere during strong geomagnetic storms
    journal, January 2005


    Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission
    journal, March 2013


    The energetic ion substorm injection boundary
    journal, January 1990

    • Lopez, R. E.; Sibeck, D. G.; McEntire, R. W.
    • Journal of Geophysical Research, Vol. 95, Issue A1
    • DOI: 10.1029/ja095ia01p00109

    Global energetic neutral atom (ENA) measurements and their association with the Dst index
    journal, December 1997

    • Jorgensen, A. M.; Spence, H. E.; Henderson, M. G.
    • Geophysical Research Letters, Vol. 24, Issue 24
    • DOI: 10.1029/97gl03095

    An empirical phase space analysis of ring current dynamics: Solar wind control of injection and decay
    journal, April 2000

    • O'Brien, T. Paul; McPherron, Robert L.
    • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A4
    • DOI: 10.1029/1998ja000437

    Magnetic storm injection of 0.9- to 16-keV/e solar and terrestrial ions into the high-altitude magnetosphere
    journal, January 1980

    • Balsiger, H.; Eberhardt, P.; Geiss, J.
    • Journal of Geophysical Research, Vol. 85, Issue A4
    • DOI: 10.1029/ja085ia04p01645

    Three-Dimensional Ring Current Decay Model
    journal, January 1995

    • Fok, Mei-Ching; Moore, Thomas E.; Kozyra, Janet U.
    • Journal of Geophysical Research, Vol. 100, Issue A6
    • DOI: 10.1029/94ja03029

    Two-satellite observations of substorm injections at geosynchronous orbit
    journal, May 2001

    • Thomsen, M. F.; Birn, J.; Borovsky, J. E.
    • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A5
    • DOI: 10.1029/2000ja000080

    Estimation of magnetic field mapping accuracy using the pulsating aurora-chorus connection: MAGNETIC MAPPING WITH CHORUS AND AURORA
    journal, July 2011

    • Nishimura, Y.; Bortnik, J.; Li, W.
    • Geophysical Research Letters, Vol. 38, Issue 14
    • DOI: 10.1029/2011gl048281

    Global imaging of O + from IMAGE/HENA
    journal, January 2003


    Hydromagnetic theory of geomagnetic storms
    journal, December 1959


    Particle acceleration by inductive electric fields in the inner magnetosphere
    journal, March 2002


    Association of substorm chorus events with drift echoes
    journal, January 2006

    • Abel, G. A.; Freeman, M. P.; Smith, A. J.
    • Journal of Geophysical Research, Vol. 111, Issue A11
    • DOI: 10.1029/2006ja011860

    Cyclotron instabilities and electromagnetic emission in the ultra low frequency and very low frequency ranges
    journal, January 1965


    Analysis of early phase ring current recovery mechanisms during geomagnetic storms
    journal, September 1999

    • Liemohn, M. W.; Kozyra, J. U.; Jordanova, V. K.
    • Geophysical Research Letters, Vol. 26, Issue 18
    • DOI: 10.1029/1999gl900611

    An empirical relationship between interplanetary conditions and Dst
    journal, November 1975

    • Burton, R. K.; McPherron, R. L.; Russell, C. T.
    • Journal of Geophysical Research, Vol. 80, Issue 31
    • DOI: 10.1029/ja080i031p04204

    A test of the Dessler-Parker-Sckopke relation during magnetic storms
    journal, March 2000

    • Greenspan, M. E.; Hamilton, D. C.
    • Journal of Geophysical Research: Space Physics, Vol. 105, Issue A3
    • DOI: 10.1029/1999ja000284

    Observations of magnetospheric bursts of high-energy protons and electrons at ∼35 R E with Imp 7
    journal, May 1976

    • Sarris, E. T.; Krimigis, S. M.; Armstrong, T. P.
    • Journal of Geophysical Research, Vol. 81, Issue 13
    • DOI: 10.1029/ja081i013p02341

    Increases in plasma sheet temperature with solar wind driving during substorm growth phases: Growth Phase PS Temperature
    journal, December 2014

    • Forsyth, C.; Watt, C. E. J.; Rae, I. J.
    • Geophysical Research Letters, Vol. 41, Issue 24
    • DOI: 10.1002/2014gl062400

    A two-component solar cycle
    journal, January 1991


    Magnetospheric configurations from a high-resolution data-based magnetic field model: MAGNETOSPHERIC HIGH-RESOLUTION MODEL
    journal, June 2007

    • Tsyganenko, N. A.; Sitnov, M. I.
    • Journal of Geophysical Research: Space Physics, Vol. 112, Issue A6
    • DOI: 10.1029/2007ja012260

    The terrestrial ring current: Origin, formation, and decay
    journal, November 1999

    • Daglis, Ioannis A.; Thorne, Richard M.; Baumjohann, Wolfgang
    • Reviews of Geophysics, Vol. 37, Issue 4
    • DOI: 10.1029/1999rg900009

    Variation of the magnetopause position with substorm activity
    journal, June 1970


    Overwhelming O + contribution to the plasma sheet energy density during the October 2003 superstorm: Geotail/EPIC and IMAGE/LENA observations : O
    journal, August 2005

    • Nosé, M.; Taguchi, S.; Hosokawa, K.
    • Journal of Geophysical Research: Space Physics, Vol. 110, Issue A9
    • DOI: 10.1029/2004ja010930

    EMIC waves observed at geosynchronous orbit during solar minimum: Statistics and excitation: EMIC WAVES AT GEOSYNCHRONOUS ORBIT
    journal, October 2011

    • Clausen, L. B. N.; Baker, J. B. H.; Ruohoniemi, J. M.
    • Journal of Geophysical Research: Space Physics, Vol. 116, Issue A10
    • DOI: 10.1029/2011ja016823

    Characteristic plasma properties during dispersionless substorm injections at geosynchronous orbit
    journal, February 1997

    • Birn, J.; Thomsen, M. F.; Borovsky, J. E.
    • Journal of Geophysical Research: Space Physics, Vol. 102, Issue A2
    • DOI: 10.1029/96ja02870

    Dominant role of the asymmetric ring current in producing the stormtime Dst *
    journal, June 2001

    • Liemohn, M. W.; Kozyra, J. U.; Thomsen, M. F.
    • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A6
    • DOI: 10.1029/2000ja000326

    Fast ionospheric response to enhanced activity in geospace: Ion feeding of the inner magnetotail
    journal, March 1996

    • Daglis, Ioannis A.; Axford, W. Ian
    • Journal of Geophysical Research: Space Physics, Vol. 101, Issue A3
    • DOI: 10.1029/95ja02592

    A comprehensive investigation of compressional ULF waves observed in the ring current
    journal, January 1990


    The Variation of Resonating Magnetospheric Field Lines With Changing Geomagnetic and Solar Wind Conditions
    journal, July 2019

    • Wharton, S. J.; Wright, D. M.; Yeoman, T. K.
    • Journal of Geophysical Research: Space Physics, Vol. 124, Issue 7
    • DOI: 10.1029/2019ja026848

    Defining and resolving current systems in geospace
    journal, January 2015


    Yet another caveat to using the Dessler-Parker-Sckopke relation
    journal, January 2003


    Magnetic flux transport in the Dungey cycle: A survey of dayside and nightside reconnection rates: FLUX TRANSPORT IN THE DUNGEY CYCLE
    journal, January 2007

    • Milan, S. E.; Provan, G.; Hubert, B.
    • Journal of Geophysical Research: Space Physics, Vol. 112, Issue A1
    • DOI: 10.1029/2006ja011642

    Ring current development during the great geomagnetic storm of February 1986
    journal, January 1988

    • Hamilton, D. C.; Gloeckler, G.; Ipavich, F. M.
    • Journal of Geophysical Research, Vol. 93, Issue A12
    • DOI: 10.1029/ja093ia12p14343

    Evaluation of SuperMAG auroral electrojet indices as indicators of substorms and auroral power: SUPERMAG AURORAL ELECTROJET INDICES
    journal, December 2011

    • Newell, P. T.; Gjerloev, J. W.
    • Journal of Geophysical Research: Space Physics, Vol. 116, Issue A12
    • DOI: 10.1029/2011ja016779

    Adiabatic plasma convection in a dipole field: Proton forbidden-zone effects for a simple electric field model
    journal, September 1976


    First composition measurement of the bulk of the storm-time ring current (1 to 300 keV/e) with AMPTE-CCE
    journal, May 1985

    • Gloeckler, G.; Wilken, B.; Stüdemann, W.
    • Geophysical Research Letters, Vol. 12, Issue 5
    • DOI: 10.1029/gl012i005p00325

    The Influence of Substorms on Extreme Rates of Change of the Surface Horizontal Magnetic Field in the United Kingdom
    journal, June 2019

    • Freeman, Mervyn P.; Forsyth, Colin; Rae, I. Jonathan
    • Space Weather, Vol. 17, Issue 6
    • DOI: 10.1029/2018sw002148

    How Do Ultra‐Low Frequency Waves Access the Inner Magnetosphere During Geomagnetic Storms?
    journal, October 2019

    • Rae, I. Jonathan; Murphy, Kyle R.; Watt, Clare E. J.
    • Geophysical Research Letters, Vol. 46, Issue 19
    • DOI: 10.1029/2019gl082395

    Substorm‐Ring Current Coupling: A Comparison of Isolated and Compound Substorms
    journal, August 2019

    • Sandhu, J. K.; Rae, I. J.; Freeman, M. P.
    • Journal of Geophysical Research: Space Physics, Vol. 124, Issue 8
    • DOI: 10.1029/2019ja026766