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Immel TJ, Mannucci AJ. Ionospheric redistribution during geomagnetic storms. JOURNAL OF GEOPHYSICAL RESEARCH. SPACE PHYSICS 2013; 118:7928-7939. [PMID: 26167429 PMCID: PMC4497462 DOI: 10.1002/2013ja018919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 10/29/2013] [Accepted: 11/01/2013] [Indexed: 06/04/2023]
Abstract
[1]The abundance of plasma in the daytime ionosphere is often seen to grow greatly during geomagnetic storms. Recent reports suggest that the magnitude of the plasma density enhancement depends on the UT of storm onset. This possibility is investigated over a 7year period using global maps of ionospheric total electron content (TEC) produced at the Jet Propulsion Laboratory. The analysis confirms that the American sector exhibits, on average, larger storm time enhancement in ionospheric plasma content, up to 50% in the afternoon middle-latitude region and 30% in the vicinity of the high-latitude auroral cusp, with largest effect in the Southern Hemisphere. We investigate whether this effect is related to the magnitude of the causative magnetic storms. Using the same advanced Dst index employed to sort the TEC maps into quiet and active (Dst<-100 nT) sets, we find variation in storm strength that corresponds closely to the TEC variation but follows it by 3-6h. For this and other reasons detailed in this report, we conclude that the UT-dependent peak in storm time TEC is likely not related to the magnitude of external storm time forcing but more likely attributable to phenomena such as the low magnetic field in the South American region. The large Dst variation suggests a possible system-level effect of the observed variation in ionospheric storm response on the measured strength of the terrestrial ring current, possibly connected through UT-dependent modulation of ion outflow.
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Affiliation(s)
- T J Immel
- Space Sciences Laboratory, University of CaliforniaBerkeley, California, USA
| | - A J Mannucci
- Jet Propulsion LaboratoryPasadena, California, USA
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Jordanova VK, Kozyra JU, Nagy AF, Khazanov GV. Kinetic model of the ring current‐atmosphere interactions. ACTA ACUST UNITED AC 2013. [DOI: 10.1029/96ja03699] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Aguado J, Cid C, Saiz E, Cerrato Y. Hyperbolic decay of the Dst Index during the recovery phase of intense geomagnetic storms. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009ja014658] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- J. Aguado
- Departamento de Física; Universidad de Alcalá; Alcalá de Henares Spain
| | - C. Cid
- Departamento de Física; Universidad de Alcalá; Alcalá de Henares Spain
| | - E. Saiz
- Departamento de Física; Universidad de Alcalá; Alcalá de Henares Spain
| | - Y. Cerrato
- Departamento de Física; Universidad de Alcalá; Alcalá de Henares Spain
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Liemohn MW, Jazowski M, Kozyra JU, Ganushkina N, Thomsen MF, Borovsky JE. CIR versus CME drivers of the ring current during intense magnetic storms. Proc Math Phys Eng Sci 2010. [DOI: 10.1098/rspa.2010.0075] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Ninety intense magnetic storms (minimum Dst value of less than −100 nT) from solar cycle 23 (1996–2005) were simulated using the hot electron and ion drift integrator (HEIDI) model. All 90 storm intervals were run with several electric fields and nightside plasma boundary conditions (five run sets). Storms were classified according to their solar wind driver, including corotating interaction regions (CIRs) and interplanetary coronal mass ejections (ICMEs). Data-model comparisons were made against the observed Dst index (specifically, Dst*) and dayside hot-ion measurements from geosynchronous orbiting spacecraft. It is found that the data-model goodness-of-fit values are different for CIR-driven storms relative to ICME-driven storms. The results are also different for the same storm category for different boundary conditions. None of the CIR-driven events was overpredicted by HEIDI, while the dayside comparisons were comparable for the different drivers. The results imply that the outer magnetosphere is responding differently to the two kinds of solar wind drivers, even though the resulting storm size might be similar. That is, for ICME-driven events, magnetospheric currents inside of geosynchronous orbit dominate the Dst perturbation, while for CIR-driven events, currents outside of this boundary have a systematically larger contribution.
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Affiliation(s)
- Michael W. Liemohn
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109-2143, USA
| | - Matt Jazowski
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109-2143, USA
| | - Janet U. Kozyra
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109-2143, USA
| | - Natalia Ganushkina
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109-2143, USA
- Finnish Meteorological Institute, Helsinki, Finland
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Fok MC, Horne RB, Meredith NP, Glauert SA. Radiation Belt Environment model: Application to space weather nowcasting. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012558] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mei-Ching Fok
- Geospace Physics Laboratory; NASA Goddard Space Flight Center; Greenbelt Maryland USA
| | - Richard B. Horne
- Physical Sciences Division; British Antarctic Survey; Cambridge UK
| | | | - Sarah A. Glauert
- Physical Sciences Division; British Antarctic Survey; Cambridge UK
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Jordanova VK, Miyoshi YS, Zaharia S, Thomsen MF, Reeves GD, Evans DS, Mouikis CG, Fennell JF. Kinetic simulations of ring current evolution during the Geospace Environment Modeling challenge events. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006ja011644] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liemohn MW. Dependence of plasmaspheric morphology on the electric field description during the recovery phase of the 17 April 2002 magnetic storm. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003ja010304] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kozyra JU, Liemohn MW, Clauer CR, Ridley AJ, Thomsen MF, Borovsky JE, Roeder JL, Jordanova VK, Gonzalez WD. MultistepDstdevelopment and ring current composition changes during the 4-6 June 1991 magnetic storm. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001ja000023] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J. U. Kozyra
- Space Physics Research Laboratory; University of Michigan; Ann Arbor Michigan USA
| | - M. W. Liemohn
- Space Physics Research Laboratory; University of Michigan; Ann Arbor Michigan USA
| | - C. R. Clauer
- Space Physics Research Laboratory; University of Michigan; Ann Arbor Michigan USA
| | - A. J. Ridley
- Space Physics Research Laboratory; University of Michigan; Ann Arbor Michigan USA
| | - M. F. Thomsen
- Space and Atmospheric Science Division; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - J. E. Borovsky
- Space and Atmospheric Science Division; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - J. L. Roeder
- The Aerospace Corporation; El Segundo California USA
| | - V. K. Jordanova
- Space Science Center; University of New Hampshire; Durham New Hampshire USA
| | - W. D. Gonzalez
- Instituto de Pesquisas Especiais; São José dos Campos; São Paulo Brazil
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Ridley AJ, Liemohn MW. A model-derived storm time asymmetric ring current driven electric field description. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001ja000051] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liemohn MW. Adiabatic energization in the ring current and its relation to other source and loss terms. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001ja000243] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liemohn MW, Kozyra JU, Clauer CR, Ridley AJ. Computational analysis of the near-Earth magnetospheric current system during two-phase decay storms. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001ja000045] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ridley AJ, De Zeeuw DL, Gombosi TI, Powell KG. Using steady state MHD results to predict the global state of the magnetosphere-ionosphere system. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja002233] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liemohn MW, Kozyra JU, Thomsen MF, Roeder JL, Lu G, Borovsky JE, Cayton TE. Dominant role of the asymmetric ring current in producing the stormtimeDst*. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000326] [Citation(s) in RCA: 250] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fok MC, Wolf RA, Spiro RW, Moore TE. Comprehensive computational model of Earth's ring current. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000235] [Citation(s) in RCA: 224] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ebihara Y, Ejiri M. Simulation study on fundamental properties of the storm-time ring current. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999ja900493] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dremukhina LA, Feldstein YI, Alexeev II, Kalegaev VV, Greenspan ME. Structure of the magnetospheric magnetic field during magnetic storms. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900261] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Jordanova VK, Torbert RB, Thorne RM, Collin HL, Roeder JL, Foster JC. Ring current activity during the earlyBz< 0 phase of the January 1997 magnetic cloud. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900339] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fok MC, Moore TE, Greenspan ME. Ring current development during storm main phase. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96ja01274] [Citation(s) in RCA: 147] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jordanova VK, Kistler LM, Kozyra JU, Khazanov GV, Nagy AF. Collisional losses of ring current ions. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/95ja02000] [Citation(s) in RCA: 208] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fok MC, Moore TE, Kozyra JU, Ho GC, Hamilton DC. Three-Dimensional Ring Current Decay Model. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/94ja03029] [Citation(s) in RCA: 132] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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