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Non-equilibrium modeling of the PMSE Overshoot Effect revisited: A comprehensive study

Published online by Cambridge University Press:  16 February 2012

ALEXANDER BIEBRICHER  and
OVE HAVNES
ALEXANDER BIEBRICHER
Affiliation:
Department of Physics and Technology, University of Tromsø, Nordlysobservatoriet, 9037 Tromsø, Norway ([email protected])
OVE HAVNES
Affiliation:
Department of Physics and Technology, University of Tromsø, Nordlysobservatoriet, 9037 Tromsø, Norway ([email protected]) University Centre at Svalbard (UNIS), Pb. 156, 9171 Longyearbyen, Norway
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Abstract

Numerical investigations of the Polar Mesosphere Summer Echoes (PMSE) Overshoot Effect have to date been undertaken under the premise of plasma neutrality and current equilibrium at any time. We find it necessary to revisit the calculations without these restrictions, since electrons and ions are attached to and absorbed by mesospheric dust particles at vastly different rates under PMSE conditions. We find that differences to earlier modeling might be so significant as to warrant further investigation. Furthermore, we conduct comprehensive studies of the PMSE Overshoot Effect and put the results in the context of experimental realities.

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Journal of Plasma Physics , Volume 78 , Issue 3 , June 2012 , pp. 303 - 319
Copyright
Copyright © Cambridge University Press 2012

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