Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 36, issue 1
Articles | Volume 36, issue 1
https://doi.org/10.5194/angeo-36-1-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-36-1-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 1
Regular paper
 | 
04 Jan 2018
Regular paper |  | 04 Jan 2018

Energy conversion through mass loading of escaping ionospheric ions for different Kp values

Masatoshi Yamauchi and Rikard Slapak

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Short summary
Extraction of the solar wind kinetic energy (∆K) by mass loading of escaping O+ is modelled in the exterior cusp and plasma mantle of the Earth. We found ∆K proportional to mass flux of escaping ions and square of solar wind velocity, but independent to the other parameters. The amount is sufficient to power the cusp field-aligned currents, further enhancing ion escape through Joule heating of the ionospheric ions, completing positive feedback to enhance escape with geomagnetic activities.
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