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2D MHD simulation of the emergence and merging of coherent structures

  1. C. C. Wu1 and
  2. Tom Chang2

Article first published online: 7 DEC 2012

DOI: 10.1029/1999GL003704

Issue

Geophysical Research Letters

Geophysical Research Letters

Volume 27, Issue 6, pages 863–866, 15 March 2000


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Author Information

  1. 1

    Department of Physics and Astronomy, University of California, Los Angeles, California

  2. 2

    Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts

Publication History

  1. Issue published online: 7 DEC 2012
  2. Article first published online: 7 DEC 2012
  3. Manuscript Accepted: 1 FEB 2000
  4. Manuscript Received: 25 OCT 1999

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A model of sporadic localized merging of coherent structures has recently been proposed by Chang to describe the dynamics of the Earth's magnetotail. Here we report the results of MHD simulations regarding the development and merging of 2D coherent structures. With a magnetic shear, such coherent structures are generated in alignment with the imposed current sheet. The calculated fluctuation spectra suggest long-ranged correlations with power-law characteristics.

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