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dc.contributor.author
Sharma, A. Surjalal  
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Aschwanden, Markus J.  
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Crosby, Norma B.  
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Klimas, Alexander J.  
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Milovanov, Alexander V.  
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Morales, Laura Fernanda  
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Sanchez, Raul  
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Uritsky, Vadim  
dc.date.available
2017-06-05T15:38:36Z  
dc.date.issued
2016-01  
dc.identifier.citation
Sharma, A. Surjalal; Aschwanden, Markus J.; Crosby, Norma B.; Klimas, Alexander J.; Milovanov, Alexander V.; et al.; 25 Years of Self-organized Criticality: Space and Laboratory Plasmas; Springer; Space Science Reviews; 198; 1; 1-2016; 167-216  
dc.identifier.issn
0038-6308  
dc.identifier.uri
http://hdl.handle.net/11336/17476  
dc.description.abstract
Studies of complexity in extended dissipative dynamical systems, in nature and in laboratory, require multiple approaches and the framework of self-organized criticality (SOC) has been used extensively in the studies of such nonequilibrium systems. Plasmas are inherently nonlinear and many ubiquitous features such as multiscale behavior, intermittency and turbulence have been analyzed using SOC concepts. The role of SOC in advancing our understanding of space and laboratory plasmas as nonequilibrium systems is reviewed in this article. The main emphasis is on how SOC and related approaches have provided new insights and models of nonequilibrium plasma phenomena. Among the natural plasmas the magnetosphere, driven by the solar wind, is a prominent example and extensive data from ground-based and space-borne instruments have been used to study phenomena of direct relevance to space weather, viz. geomagnetic storms and substorms. During geomagnetically active periods the magnetosphere is far from equilibrium, due to its internal dynamics and being driven by the turbulent solar wind, and substorms are prominent features of the complex driven system. Studies using solar wind and magnetospheric data have shown both global and multiscale features of substorms. While the global behavior exhibits system-wide changes, the multiscale behavior shows scaling features. Along with the studies based on observational data, analogue models of the magnetosphere have advanced the understanding of space plasmas as well as the role of SOC in natural systems. In laboratory systems, SOC has been used in modeling the plasma behavior in fusion experiments, mainly in tokamaks and stellarators. Tokamaks are the dominant plasma confinement system and modeling based on SOC have provided a complementary approach to the understanding of plasma behavior under fusion conditions. These studies have provided insights into key features of toroidally confined plasmas, e.g., the existence of critical temperature gradients above which the transport rates increase drastically. The SOC models address the transport properties from a more general approach, compared to those based on turbulence arising from specific plasma instabilities, and provide a better framework for modeling features such as superdiffusion. The studies of space and laboratory plasmas as nonequilibrium systems have been motivated by features such as scaling and critical behavior, and have provided new insights by highlighting the properties that are common with other systems.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Multiscale Phenomena  
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Nonequilibrium Systems  
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Self-Organized Criticality  
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Space Plasmas  
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Tokamaks  
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Turbulence  
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Física de los Fluidos y Plasma  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
25 Years of Self-organized Criticality: Space and Laboratory Plasmas  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-06-05T14:47:42Z  
dc.journal.volume
198  
dc.journal.number
1  
dc.journal.pagination
167-216  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlín  
dc.description.fil
Fil: Sharma, A. Surjalal. University Of Maryland; Estados Unidos  
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Fil: Aschwanden, Markus J.. Lockheed Martin Corporation; Estados Unidos  
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Fil: Crosby, Norma B.. Belgian Institute For Space Aeronomy; Bélgica  
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Fil: Klimas, Alexander J.. Nasa Goddard Space Flight Center; Estados Unidos  
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Fil: Milovanov, Alexander V.. Russian Academy Of Sciences. Space Research Institute; Rusia. Enea Centro Ricerche Frascati; Italia  
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Fil: Morales, Laura Fernanda. Canadian Space Agency; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
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Fil: Sanchez, Raul. Universidad Carlos Iii de Madrid. Instituto de Salud; España  
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Fil: Uritsky, Vadim. Nasa Goddard Space Flight Center; Estados Unidos  
dc.journal.title
Space Science Reviews  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11214-015-0225-0  
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info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11214-015-0225-0