Results 21 to 30 of about 408,077 (211)
Deformation of Ionospheric Potential Pattern by Ionospheric Hall Polarization [PDF]
Journal of Geophysical Research: Space Physics, 2019 Abstract The present study shows that the ionospheric Hall polarization can deform the high‐latitude ionospheric convection field, which is widely considered to be a manifestation of the convection field in the magnetosphere. We perform the Hall polarization field separation with a potential solver by changing the conductance ...
Aoi, Nakamizo, Akimasa, Yoshikawa
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Method to locate the polar cap boundary in the nightside ionosphere and application to a substorm event [PDF]
, 2006 International audienceIn this paper we describe a new method to be used for the polar cap boundary (PCB) determination in the nightside ionosphere by using the EISCAT Svalbard radar (ESR) field-aligned measurements by the 42-m antenna and southward ...
A. T. Aikio +12 more
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Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009) [PDF]
, 2008 During the International Polar Year (IPY), one area of great interest is co-coordinated, multi-instrument probing of the ionosphere at high latitudes. This region is important not only for the applications that rely upon our understanding of it, but also
Freeman, M. +26 more
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On Modelling the Convecting Polar Ionosphere
Journal of Computational and Engineering Mathematics, 2019 Summary: In addition to the model of polar ionosphere in terms of ordinary differential equation with random coefficients we construct and investigate two more models: described in terms of a stochastic differential equation in Ito form and in terms of stochastic equation with current velocities (symmetric Nelson's mean derivatives).
Gliklikh, Yu. E., Vlaskov, G. A.
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Localized structure in the cusp and high-latitude ionosphere: a modelling study [PDF]
Annales Geophysicae, 1999 The ionospheric signature of a flux transfer event (FTE) seen in EISCAT radar data has been used as the basis for a modelling study using a new numerical model of the high-latitude ionosphere developed at the University of Sheffield, UK. The evolution
H. F. Balmforth +2 more
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Electric Field Multifractal Features in the High-Latitude Ionosphere: CSES-01 Observations
Atmosphere, 2021 In the polar ionosphere, the electric field is characterized by broadband and power law spectral densities at small/short spatio-temporal scales, which support a possible turbulent nature of the electric field fluctuations.
Giuseppe Consolini +6 more
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Известия высших учебных заведений России: Радиоэлектроника, 2019 Introduction. It has been previously reported that small-scale irregularities (SSI) in the polar ionosphere are elongated along the magnetic field and anisotropic in its cross-field direction.
Valery A. Panchenko +2 more
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Ionospheric control of the magnetosphere: conductance [PDF]
Annales Geophysicae, 2004 It is well known that the ionosphere plays a role in determining the global state of the magnetosphere. The ionosphere allows magnetospheric currents to close, thereby allowing magnetospheric convection to occur.
A. J. Ridley +2 more
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Magnetopause mapping to the ionosphere for northward IMF [PDF]
Annales Geophysicae, 2007 We study the topological structure of the magnetosphere for northward IMF. Using a magnetospheric magnetic field model we study the high-latitude response to prolonged periods of northward IMF.
I. I. Alexeev +6 more
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The thermospheric effects of a rapid polar cap expansion [PDF]
Annales Geophysicae, 1998 In a previous publication we used results from a coupled thermosphere-ionosphere-plasmasphere model to illustrate a new mechanism for the formation of a large-scale patch of ionisation arising from a rapid polar cap expansion.
D. W. Idenden
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