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Modeling the Storm Time Electrodynamics

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Aeronomy of the Earth's Atmosphere and Ionosphere

Part of the book series: IAGA Special Sopron Book Series ((IAGA,volume 2))

Abstract

A model that electrodynamically couples inner magnetosphere, ionosphere, plasmasphere, thermosphere, and electrodynamics has been developed and is used to separate sources of the storm time electric fields between the magnetospheric, ionospheric, and thermospheric processes and to investigate their nonlinear interactions. The two sources of the electric-field disturbances, prompt penetration (PP) and disturbance dynamo (DD), have been identified in the coupled model results. Furthermore, the results suggest that the sources of variability in storm time electric fields are associated with the nonlinear interaction between the PP and DD, such that the response depends on the preconditioning of the coupled system. The preconditioning in this study is caused by the fact that the magnetosphere, ionosphere, and thermosphere respond to external forcing as a coupled system. The results clearly demonstrate the need for a fully coupled model of magnetosphere–ionosphere–thermosphere, in order to determine the preconditioning effect.

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Acknowledgments

NM was supported by the National Science Foundation under Agreement Number ATM0720406, and NASA GSFC: LWS TRT NNX06AC68G and Guest Investigator C/NOFS program NNX09AN58G. AR and AM were supported in part by the NASA LWS program. The National Center for Atmospheric Research is sponsored by the National Science Foundation.

Author information

Authors and Affiliations

  1. Cooperative Institute for Research in Environmental Sciences, Space Weather Prediction Center, University of Colorado, Boulder, CO, USA

    Naomi Maruyama

  2. Space Weather Prediction Center, National Oceanic and Atmospheric Administration, Boulder, CO, USA

    Naomi Maruyama, Timothy J. Fuller-Rowell, Mihail V. Codrescu & David Anderson

  3. Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA

    Timothy J. Fuller-Rowell & David Anderson

  4. High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, USA

    Arthur D. Richmond & Astrid Maute

  5. Physics and Astronomy Department, Rice University, Houston, TX, USA

    Stanislav Sazykin, Frank R. Toffoletto, Robert W. Spiro & Richard A. Wolf

  6. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, USA

    George H. Millward

Authors
  1. Naomi Maruyama
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  2. Timothy J. Fuller-Rowell
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  3. Mihail V. Codrescu
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  4. David Anderson
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  5. Arthur D. Richmond
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  6. Astrid Maute
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  7. Stanislav Sazykin
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  8. Frank R. Toffoletto
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  9. Robert W. Spiro
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  10. Richard A. Wolf
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  11. George H. Millward
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Corresponding author

Correspondence to Naomi Maruyama .

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Editors and Affiliations

  1. Espaciais (INPE), Instituto Nacional de Pesquisas, Av. dos Astronautas 1758, São Jose dos Campos, 12227-010, São Paulo, Brazil

    Mangalathayil Ali Abdu

  2. Geophysical Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev St., Sofia, 1113, Bulgaria

    Dora Pancheva

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Maruyama, N. et al. (2011). Modeling the Storm Time Electrodynamics. In: Abdu, M., Pancheva, D. (eds) Aeronomy of the Earth's Atmosphere and Ionosphere. IAGA Special Sopron Book Series, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0326-1_35

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