Show simple item record

dc.contributor.authorChang, Tom
dc.contributor.authorWu, Cheng-chin
dc.contributor.authorEchim, Marius
dc.contributor.authorVogelsberger, Mark
dc.contributor.authorHernquist, Lars
dc.contributor.authorSijacki, Debora
dc.contributor.authorLamy, Herve
dc.date.accessioned2015-09-11T13:11:15Z
dc.date.available2015-09-11T13:11:15Z
dc.date.issued2014-08
dc.date.submitted2014-05
dc.identifier.issn0033-4553
dc.identifier.issn1420-9136
dc.identifier.urihttp://hdl.handle.net/1721.1/98460
dc.description.abstract“Dynamic complexity” is a phenomenon observed for a nonlinearly interacting system within which multitudes of different sizes of large scale coherent structures emerge, resulting in a globally nonlinear stochastic behavior vastly different from that which could be surmised from the underlying equations of interaction. A characteristic of such nonlinear, complex phenomena is the appearance of intermittent fluctuating events with the mixing and distribution of correlated structures on all scales. We briefly review here a relatively recent method, ROMA (rank-ordered multifractal analysis), explicitly developed for analysis of the intricate details of the distribution and scaling of such types of intermittent structure. This method is then used for analysis of selected examples related to the dynamic plasmas of the cusp region of the Earth’s magnetosphere, velocity fluctuations of classical hydrodynamic turbulence, and the distribution of the structures of the cosmic gas obtained by use of large-scale, moving mesh simulations. Differences and similarities of the analyzed results among these complex systems will be contrasted and highlighted. The first two examples have direct relevance to the Earth’s environment (i.e., geoscience) and are summaries of previously reported findings. The third example, although involving phenomena with much larger spatiotemporal scales, with its highly compressible turbulent behavior and the unique simulation technique employed in generating the data, provides direct motivation for applying such analysis to studies of similar multifractal processes in extreme environments of near-Earth surroundings. These new results are both exciting and intriguing.en_US
dc.description.sponsorshipNational Science Foundation (U.S.)en_US
dc.description.sponsorshipSeventh Framework Programme (European Commission) (FP7/2007-2013 Grant Agreement 313038/STORM)en_US
dc.language.isoen_US
dc.publisherSpringer-Verlagen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s00024-014-0874-zen_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourcearXiven_US
dc.titleComplexity Phenomena and ROMA of the Earth’s Magnetospheric Cusp, Hydrodynamic Turbulence, and the Cosmic Weben_US
dc.typeArticleen_US
dc.identifier.citationChang, Tom, Cheng-chin Wu, Marius Echim, Hervé Lamy, Mark Vogelsberger, Lars Hernquist, and Debora Sijacki. “Complexity Phenomena and ROMA of the Earth’s Magnetospheric Cusp, Hydrodynamic Turbulence, and the Cosmic Web.” Pure Appl. Geophys. 172, no. 7 (August 23, 2014): 2025–2043.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMIT Kavli Institute for Astrophysics and Space Researchen_US
dc.contributor.mitauthorChang, Tomen_US
dc.contributor.mitauthorVogelsberger, Marken_US
dc.relation.journalPure and Applied Geophysicsen_US
dc.eprint.versionOriginal manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsChang, Tom; Wu, Cheng-chin; Echim, Marius; Lamy, Hervé; Vogelsberger, Mark; Hernquist, Lars; Sijacki, Deboraen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-8593-7692
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record