Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3911
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Consolini, G.; Istituto di Fisica dello Spazio Interplanetario CNR, 00133 Roma, Italy | en |
dc.contributor.authorall | De Michelis, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Meloni, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.date.accessioned | 2008-06-23T12:59:42Z | en |
dc.date.available | 2008-06-23T12:59:42Z | en |
dc.date.issued | 2000-01-15 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3911 | en |
dc.description.abstract | The Earth's magnetic field has reversed its polarity hundreds of times in the Earth's history. This phenomenon is generally viewed as due to a Poisson nonstationary process. Here, the geomagnetic chron time length sequence for the past 166 Ma, is analyzed using a multifractal approach, based on "singularity analysis". The existence of a multifractal structure is the signature of the occurrence of "punctuated equilibrium", which can be read as an indication of a critical configuration of the geodynamo. The results obtained are compared with those from a prototypical model of a dynamical system, introduced by Seki & Ito [1993], and are discussed in the context of fluid motions within the Earth's outer liquid core. | en |
dc.language.iso | English | en |
dc.publisher.name | AGU | en |
dc.relation.ispartof | Geophysical Research Letters | en |
dc.relation.ispartofseries | 2 / 27 (2000) | en |
dc.subject | Magnetic field polarity reversals | en |
dc.subject | Multifractal approach | en |
dc.subject | Punctuated equilibrium | en |
dc.title | Multifractality and Punctuated Equilibrium in the Earth's Magnetic Field Polarity Reversals | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 293-296 | en |
dc.subject.INGV | 04. Solid Earth::04.05. Geomagnetism::04.05.02. Geomagnetic field variations and reversals | en |
dc.relation.references | Bak, P., C. Tang, and K. Wiesenfeld, Self-Organized Criticality: An Explanationo f 1/J'N oise, Phys.R ev.L ett., 59, 381, 1987. Benzi,R ., et al., On the multifractaln atureo f fully developedtu rbulence andc haotics ystemsJ, .P hys.A , 17, 3521, 1984. Cande,S ., and D.V. Kent, A new geomagneticp olarityt imescalef or the Late Cretaceousa nd Cenozoic,J . GeophysR. es.,9 7, 13917, 1992. Cande,S ., andD .V. Kent, Revisedc alibrationo f the geomagnetipco larity timescale for the Late Cretaceous and Cenozoic, J. Geophys. Res., 100, 6093, 1995. Chang,T .S., Low-dimensionabl ehaviora nd symmetryb reakingo f stochastics ystemns earc riticality- cant hesee ffectsb e observedin space and in laboratory ?, IEEE Trans. Plasma Sci., 20,691, 1992. Cortini, M., and C.C Barton, Chaosi n geomagneticr eversalr ecords:A comparisonb etweenE arth's magneticf ield data and model disk dynamod ata,J . GeophysR. es.B , 99, 18021, 1994. Davis, A., A. Marshak, W. Wiscombe, and R. Cahalm•, Multifractal characterizations of nonstationarity and intermittency in geophysical fields: Observed, retrieved, or simulated, J. Geophys. Res. D, 99, 8055, 1994. Gaffin, S., Analysis of scaling in the geomagneticp olarity reversalr ecord, Phys. Earth Planet. Int. , 57, 248, 1989. Gallet, Y., andG . Hulot, Stationarya ndn onstationarby ehaviorw ithin the geomagnetipco larityt ime scale,G eophysR. es.L ett., 24, 1875, 1997. Gil L., and D. Sornette, Landau-Ginzburg Theory of Self-Organized Criticality, Phys. Rev. Lett. 76, 3991, 1996. GrassbergerP, ., and I. Procaccia,C haracterizationo f strangea ttractors, Phys. Rev. Lett., 50, 346, 1983. Halsey,T ., et al., Fractalm easuresa ndt heir singularitiesT: he characterizationo f stranges ets,P hys.R ev.A ., 33, 1141, 1986. JensenH, .J.K., Self-OrganisedC riticality:E mergentC omplexB ehaviour in Physical and Biological Systems. Cambridge University Press, CambridgeE, ngland,1 998. Kadanoff,L .P. et al., Staticp henomenan ear critical points:t heorya nd experimentsR, ev. Mod. Phys.,3 9, 395, 1967. Lutz, T.M., and G.S. Watson, Effects of long-term variation on the frequency spectrum of the geomagnetic reversal record, Nature, 334, 240, 1988. McFaddenP, .L. m•dR .T. Merrill, Lower mantlec onvectiona ndg eomagnetism, J . GeophysR. es.,8 9, 3354, 1984. McFaddenP .L., Statisticatlo olsf or the analysiso f geomagnetirce versal sequenceJs., GeophysR. es.,8 9, 3363, 1984. McFadden, P.L. m•d R.T. Merrill, History of the Earth's magnetic field and possiblec onnectionsto core-mantleb oundaryp rocessesJ,. Ge ophys. Res., 100, 317, 1995. Meneveau, C., and K.R. Sreenivasan, The multit¾actal nature of turbulent energyd issipationJ,. Fluid Mech., 224, 429, 1991. Merrill, R.T., and P.L. McFadden,P aleomagnetisman dt he natureo f the geodynamoS, cience,2 48, 345, 1990. Merrill, R.T., M.W., McE!hinny, and P.L. McFadden, The Magnetic Field of the Earth, Paleomagnetismth, e Core and the Deep Mantle, Academic Press, 1996. Ogg, J.G., Magnetic polarity time scale of the Phanerozoic, in Global Earth PhysicsA, Handbooko f Physicalc onstants2, 40, 1995. Paladin, G., and A. Vulpiani, Anomalous Scaling Laws in Multifractal ObjectsP, hys.R ep., 156, 147, 1987. Seki,M ., andK . Ito, A phase-transitiomno delf or geomagnetpico larity reversalsJ, . Geomag.G eoelect.,4 5, 79, 1993. | en |
dc.description.obiettivoSpecifico | 3.4. Geomagnetismo | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Consolini, G. | en |
dc.contributor.author | De Michelis, P. | en |
dc.contributor.author | Meloni, A. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | INAF – Istituto di Astrofisica e Planetologia Spaziali, 00133 Roma, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-3403-647X | - |
crisitem.author.orcid | 0000-0002-2708-0739 | - |
crisitem.author.orcid | 0000-0003-1155-401X | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
1999GL008390.pdf | 430.03 kB | Adobe PDF |
Page view(s)
179
checked on Apr 20, 2024
Download(s)
23
checked on Apr 20, 2024