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      Transport of solar wind fluctuations: A two-component model

      Oughton, Sean; Matthaeus, William H.; Smith, Charles W.; Breech, Ben; Isenberg, P. A.
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      12-06 Oughton.pdf
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      DOI
       10.1029/2010JA016365
      Link
       www.agu.org
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      Oughton, S., Matthaeus, W.H., Smith, C.W., Breech, B. & Isenberg, P.A. (2011). Transport of solar wind fluctuations: A two-component model. Journal of Geophysical Research, 116, A08105.
      Permanent Research Commons link: https://hdl.handle.net/10289/5880
      Abstract
      We present a new model for the transport of solar wind fluctuations which treats them as two interacting incompressible components: quasi-two-dimensional turbulence and a wave-like piece. Quantities solved for include the energy, cross helicity, and characteristic transverse length scale of each component, plus the proton temperature. The development of the model is outlined and numerical solutions are compared with spacecraft observations. Compared to previous single-component models, this new model incorporates a more physically realistic treatment of fluctuations induced by pickup ions and yields improved agreement with observed values of the correlation length, while maintaining good observational accord with the energy, cross helicity, and temperature.
      Date
      2011
      Type
      Journal Article
      Publisher
      American Geophysical Union
      Rights
      An edited version of this paper was published by AGU. Copyright (2011) American Geophysical Union. To view the published open abstract, go to http://dx.doi.org/10.1029/2010JA016365
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      • Computing and Mathematical Sciences Papers [1455]
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