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Titolo:
Time domain analysis of plasma turbulence observed upstream of a quasi-parallel shock
Autore:
Coca, D; Balikhin, MA; Billings, SA; Alleyne, HSCK; Dunlop, M;
Indirizzi:
Univ Sheffield, Dept Automat Control & Syst Engn, Sheffield S1 3JD, S Yorkshire, England Univ Sheffield Sheffield S Yorkshire England S1 3JD S Yorkshire, England Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Space & Atmospher Phys Grp, London SW7 2BZ, England Univ London Imperial Coll Sci Technol & Med London England SW7 2BZ gland
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
fascicolo: A11, volume: 106, anno: 2001,
pagine: 25005 - 25021
SICI:
0148-0227(20011101)106:A11<25005:TDAOPT>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMPLITUDE MAGNETIC-STRUCTURES; FLUXGATE MAGNETOMETER; HYDROMAGNETIC-WAVES; ISEE-2 OBSERVATIONS; BOW SHOCK; IDENTIFICATION; ASSOCIATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Coca, D Univ Sheffield, Dept Automat Control & Syst Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England Univ Sheffield Mappin St Sheffield S Yorkshire England S1 3JD land
Citazione:
D. Coca et al., "Time domain analysis of plasma turbulence observed upstream of a quasi-parallel shock", J GEO R-S P, 106(A11), 2001, pp. 25005-25021

Abstract

This paper presents, for the first time, an analysis of space plasma turbulence based on the NARMAX system identification approach. Fundamental nonlinear processes in the low-frequency turbulence observed in the terrestrial foreshock by Active Magnetospheric Particle Tracer Explorers United KingdomSatellite (AMPTE UKS) and Ion Release Module (AMPTE IRM) are studied usingtime domain identification methods developed for nonlinear dynamical systems. It is shown, directly from the experimental data, that the cubic nonlinearity has a significant influence on the steepening of the nonlinear low-frequency waves and on the dependence of the phase velocity upon the wave amplitude. In comparison with a previous frequency domain approach, the present method requires only short data sets.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/12/19 alle ore 15:17:00