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AGU: Geophysical Research Letters

 

Index Terms

  • Ionosphere: Ionosphere/atmosphere interactions
  • Magnetospheric Physics: Magnetosphere interactions with satellites and rings
  • Magnetospheric Physics: Numerical modeling

Abstract

3-D global MHD model prediction for the first close flyby of Titan by Cassini

Ying-Juan Ma

Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan, USA

Andrew F. Nagy

Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan, USA

Thomas E. Cravens

Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas, USA

Igor V. Sokolov

Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan, USA

John Clark

Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas, USA

Kenneth C. Hansen

Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan, USA

The global features of the interaction between Saturn's magnetospheric plasma flow and Titan's atmosphere/ionosphere are simulated by using a 3-D, multi-species, high spatial resolution, global MHD model. Our model uses a spherical grid structure leading to very good (∼36 km) altitude resolution in the ionospheric region of Titan. The model also provides good resolution and meaningful results in the upstream and wake regions. Titan's atmosphere and ionosphere are approximated by 10 neutral and 7 ion species. Calculations, which make predictions for the anticipated results to be obtained by the Cassini spacecraft during its first close flyby (TA) of Titan, are presented.

Received 6 August 2004; accepted 15 October 2004; published 17 November 2004.

Citation: Ma, Y.-J., A. F. Nagy, T. E. Cravens, I. V. Sokolov, J. Clark, and K. C. Hansen (2004), 3-D global MHD model prediction for the first close flyby of Titan by Cassini, Geophys. Res. Lett., 31, L22803, doi:10.1029/2004GL021215.

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