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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4023
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dc.contributor.authorallConsolini, G.; Istituto di Fisica dello Spazio Interplanetario – CNR, Roma, Italyen
dc.contributor.authorallDe Michelis, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.date.accessioned2008-08-29T10:19:30Zen
dc.date.available2008-08-29T10:19:30Zen
dc.date.issued2002en
dc.identifier.urihttp://hdl.handle.net/2122/4023en
dc.description.abstractRecent observations and analyses evidenced that the magnetotail, as well as the magnetospheric dynamics are characterised by a scale-free behaviour and intermittence. These results, along with numerical simulations on cellular automata, suggest that the observed scale-invariance may be due to forced and/or self-organised criticality (FSOC), meaning that the magnetotail operates near a marginally stable state (Chang, 1999). On the other hand, it was underlined that a complex magnetic field topology in the geotail regions may play a relevant role in the impulsive energy relaxation (Consolini and Chang, 2001).en
dc.language.isoEnglishen
dc.publisher.nameEGUen
dc.relation.ispartofNonlinear Processes in Geophysicsen
dc.relation.ispartofseries5-6 / 9 (2002)en
dc.subjectmagnetospheric physicsen
dc.subjectmagnetotail dynamicsen
dc.subjectfractal time statisticsen
dc.subjectAE-indexen
dc.titleFractal time statistics of AE-index burst waiting times: evidence of metastabilityen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber419-423en
dc.identifier.URLhttp://www.nonlin-processes-geophys.net/9/issue5_6.htmlen
dc.subject.INGV01. Atmosphere::01.03. Magnetosphere::01.03.03. Magnetospheric physicsen
dc.subject.INGV01. Atmosphere::01.03. Magnetosphere::01.03.04. Structure and dynamicsen
dc.relation.referencesAngelopoulos, V., Mukai, T., and Kokubun, S.: Evidence for intermittency in earth’s plasma sheel and implications for selforganized criticality, Phys. Plasmas, 6, 4161–4165, 1999. Baker, D. N., Klimas, A. J., McPherron, R. I., and Buechner, J.: The evolution from weak to strong geomagnetic activity: and interpretation in terms of deterministic chaos, Geophys. Res. Lett., 17, 41–44, 1990. Bak, P., Tang, C., and Wiesenfeld, K.: Self-organized criticality: an explanation of 1/f noise, Phys. Rev. Lett., 59, 381–383, 1987. Boffetta, G., Carbone, V., Giuliani, P., Veltri, P., and Vulpiani, A.: Power laws in solar flares: self-organized criticality or turbulence? Phys. Rev. Lett., 83, 4662–4665, 1999. Chang, T.: Low-dimensional behavior and symmetry breaking of stochastic system near criticality: can these effects be observed in space and in laboratory? IEEE Trans on Plasma Sci., 20, 691– 694, 1992a. Chang, T.: Path integral approach to stochastic systems near selforganized criticality. in: Research Trends in Physics: Nonlinear Space Plasma Physics, (Eds) Alfven, H., et al., A.I.P., 165–171, 1992b. Chang, T.: Self-organized criticality, multi-fractal spectra, sporadic localized reconnections and intermittent turbulence in magnetotail, Phys. Plasmas, 6, 4137, 1999. Chang, T.: Colloid-like behavior and topological phase transitions in space plasmas: intermittent low frequency turbulence in the auroral zone, Phys. Scripta, T89, 80–83, 2001a. Chang, T.: An example of resonances, coherent structures and topological phase transition - the origin of the low frequency broadband spectrum in the auroral zone, Nonlinear Proc. Geophys., 8, 175–180, 2001b. Consolini, G., Marcucci, M. F., and Candidi, M.: Multifractal structure of auroral electrojet index data, Phys. Rev. Lett., 76, 4082– 4085, 1996. Consolini, G.: Sandpile cellular automata and magnetospheric dynamics, in: Cosmic Physics in the year 2000, (Eds) Aiello et al., 58, pp. 123–126, SIF, Bologna, Italy, 1997. Consolini, G. and De Michelis, P.: Non-gaussian distribution function of AE-index fluctuations: evidence for time intermittency, Geophys. Res. Lett., 25, 4087–4090, 1998. Consolini, G. and Chang, T.: Magnetic field topology and criticality in geotail dynamics: relevance to substorm phenomena, Space Sci. Rev., 95, 309–321, 2001. Consolini, G. and Chang, T.: Complexity, magnetic field topology, criticality, and metastability in magnetotail dynamics. J. Atmos. Sol. Terr. Phys., in press, 2002. Freeman, M. P., Watkins, N. W., and Riley, T.: Evidence for a solar origin of the power law burst lifetime distribution of the AE indices, Geophys. Res. Lett., 27, 1087–1090, 2000. Hanggi, P., Talkner, P. and Borkovec, M.: Reaction-rate theory – 50 years after Kramers, Rev. Mod. Phys., 62, 251–350, 1990. Klafter, J., Zumofen, G., and Shlesinger, M. F.: Long-tailed distributions and non-Brownian transport in complex systems, in: The Physics of Complex Systems, Mallamace, F. and Stanley, H. E., IOS Press, Amsterdam (The Netherlands), 85–99, 1997. Klimas, A. J., Vassiliadis, D., Baker, D. N., and Roberts, D. A.: The organised nonlinear dynamics of the magnetosphere, J. Geophys. Res., 101, 13 089–13 113, 1996. Lui, A. T. Y., Chapman, S. C., Liou, K., Newell, P. T., Meng, C. I., Britthacher, M., and Parks, G. D.: Is the dynamic magnetosphere an avalanching system? Geophys. Res. Lett., 27, 911–914, 2000. Price, C. P. and Newman, D. E.: Using the R/S statistic to analyze AE data, J. Atmos. Sol. Terr. Phys., 63, 1387–1397, 2001. Roberts, D. A., Baker, D. N., Klimas, A. J., and Brgatze, L. F.: Indications of low dimensionality in magnetospheric dynamics, Geophys. Res. Lett., 18, 151–154, 1991. Sharma, A. S., Sitnov, M. I., and Papadopoulos, K.: Substorms as nonequilibrium transitions of the magnetosphere, J. Atmos. Sol. Terr. Phys., 63, 1399–1406, 2001. Sitnov, M. I., Sharma, A. S., Papadopoulos, K., Vassiliadis, D., Valdivia, J. A., Klimas, A. J., and Baker, D. N.: Phase transition-like behavior of the magnetosphere during substorms, J. Geophys. Res., 105, 12 955–12 974, 2000. Sitnov, M. I., Sharma, A. S., Papadopoulos, K., and Vassiliadis, D.: Modeling substorm dynamics of the magnetosphere: from self-organization and self-organized criticality to nonequilibrium phase transitions, Phs. Rev. E., 65, 016116, 2001. Sornette, D.: Critical Phenomena in Natural Sciences, Springer- Verlag, Berlin Heidelberg, 2000. Takalo, J., Mursula, K., and Timonen, J.: Role of the driver in the dynamics of a coupled-map model of the magnetotail: does the magnetosphere act as a low-pass filter? J. Geophys. Res., 105, 27 665–27 672, 2000. Vassiliadis, D. V., Sharma, A. S., Eastman, T. E., and Papadopoulos, K.: Low-dimensional chaos in magnetospheric activity from AE time series, Geophys. Res. Lett., 17, 1841–1844, 1990.en
dc.description.obiettivoSpecifico3.9. Fisica della magnetosfera, ionosfera e meteorologia spazialeen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorConsolini, G.en
dc.contributor.authorDe Michelis, P.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptINAF – Istituto di Astrofisica e Planetologia Spaziali, 00133 Roma, Italy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.orcid0000-0002-3403-647X-
crisitem.author.orcid0000-0002-2708-0739-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent01. Atmosphere-
crisitem.classification.parent01. Atmosphere-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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