Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7310
DC Field | Value | Language |
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dc.contributor.authorall | Consolini, G.; INAF – Istituto di Fisica dello Spazio Interplanetario, 00133 Roma, Italy | en |
dc.contributor.authorall | De Michelis, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.date.accessioned | 2012-01-13T09:19:59Z | en |
dc.date.available | 2012-01-13T09:19:59Z | en |
dc.date.issued | 2011-12-23 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7310 | en |
dc.description.abstract | Over the past few decades scientists have shown growing interest in space plasma complexity and in understanding the turbulence in magnetospheric and interplanetary media. At the beginning of the 1980s, Yu. L. Klimontovich introduced a criterion, named S-Theorem, to evaluate the degree of order in far-from-equilibrium open systems, which applied to hydrodynamic turbulence showed that turbulence flows were more organized than laminar ones. Using the same theorem we have evaluated the variation of the degree of self-organization in both Alfv´enic and non-Alfv´enic turbulent fluctuations with the radial evolution during a long time interval characterized by a slow solar wind. This analysis seems to show that the radial evolution of turbulent fluctuations is accompanied by a decrease in the degree of order, suggesting that, in the case of slow solar wind, the turbulence decays with radial distance. | en |
dc.language.iso | English | en |
dc.publisher.name | Copernicus Publications | en |
dc.relation.ispartof | Annales Geophysicae | en |
dc.relation.ispartofseries | special issue/29 (2011) | en |
dc.subject | Interplanetary physics (Solar wind plasma) | en |
dc.subject | Space plasma physics (Turbulence) | en |
dc.title | Relative ordering in the radial evolution of solar wind turbulence: the S-Theorem approach | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 2317-2326 | en |
dc.identifier.URL | www.ann-geophys.net/29/2317/2011/ | en |
dc.subject.INGV | 01. Atmosphere::01.03. Magnetosphere::01.03.05. Solar variability and solar wind | en |
dc.subject.INGV | 05. General::05.01. Computational geophysics::05.01.04. Statistical analysis | en |
dc.identifier.doi | 10.5194/angeo-29-2317-2011 | en |
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L.: Entropy decrease in process of self organization. S-Theorem, Pis’ma v ZhTP, 9, 1089–1093, 1983. Klimontovich, Yu. L.: Entropy and entropy production in the laminar and the turbulent flows, Pis’ma v ZhTP, 10, 80–83, 1984. Klimontovich, Yu. L.: Turbulent Motion and the Sructure of Chaos. A new approach to the statistical theory of open systems, Kluwer Academic Publishers, 1991. Klimontovich, Yu. L.: Statistical Theory of Open Systems, Vol.1, Kluwer Academic Publishers, 1995. Klimontovich, Yu. L.: Is turbulent motion chaos or order? Is the hydrodynamic or kinetic description of turbulent motion more natural?, Physica B, 228, 51–62, doi:10.1016/S0921-4526(96)00338- 9, 1996. Mariani, F., Bavassano, B., Villante, U., and Ness, N. F.: Variations of the Occurrence Rate of Discontinuities in the Interplanetary Magnetic Field, J. Geophys. Res., 78, 8011–8022, doi:10.1029/JA078i034p08011, 1973. 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H.: Origin and evolution of fluctuations in the solar wind: Helios observations and Helios-Voyager comparisons, J. Geophys. Res., 92, 12023–12035, doi:10.1029/JA092iA11p12023, 1987. Russell, C. T.: Solar wind and interplanetary magnetic field: A tutorial, Space Weather, Geophysical Monograph, 125, 2001. Schwenn, R.: The average solar wind in the inner heliosphere: Structure and slow variations, in: SolarWind FIVE, NASA Conf. Publ., CP-2280, 485, 1983. Tu, C.-Y. and Marsch, E.: Evidence for a Background Spectrum of Solar Wind Turbulence in the Inner Heliosphere, J. Geophys. Res., 95, 4337–4341, doi:10.1029/JA095iA04p04337, 1990. Tu C.-Y. and Marsch, E.: A Model of Solar Wind Fluctuations with Two Components: Alfv´en Waves and Convective Structures, J. Geophys. Res., 98, 1257–1276, doi:10.1029/92JA01947, 1993. Tu, C.-Y., Pu, Z.-Y., and Wei, F.-S.: The power spectrum of interplanetary Alfv´enic fluctuations: deviation of the governing equation and its solution, J. Geophys. Res., 89, 9695–9702, doi:10.1029/JA089iA11p09695, 1984. Tu, C.-Y., Marsch, E., and Thieme, K. M.: Basic properties of solar wind MHD turbulence near 0.3AU analysed by mean of Els¨asser variables, J. Geophys. Res., 94, 11739–11759, doi:10.1029/JA094iA09p11739, 1989. Verma, M. K., Roberts, D. A., and Goldstein, M. L.: Turbulent heating and temperature evolution in the solar wind plasma, J. Geophys. Res., 100, 19839–19850, doi:10.1029/95JA01216, 1995. Ann. Geophys., 29, 2317–2326, 2011 www.ann-geophys.net/29/2317/2011/ | en |
dc.description.obiettivoSpecifico | 3.9. Fisica della magnetosfera, ionosfera e meteorologia spaziale | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Consolini, G. | en |
dc.contributor.author | De Michelis, P. | 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 | open | - |
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.orcid | 0000-0002-3403-647X | - |
crisitem.author.orcid | 0000-0002-2708-0739 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 01. Atmosphere | - |
crisitem.classification.parent | 05. General | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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