Interhemispheric comparison of GPS phase scintillation at high latitudes during the magnetic-cloud-induced geomagnetic storm of 5–7 April 2010 [PDF]
Annales Geophysicae, 2011 Arrays of GPS Ionospheric Scintillation and TEC Monitors (GISTMs) are used in a comparative scintillation study focusing on quasi-conjugate pairs of GPS receivers in the Arctic and Antarctic.
P. Prikryl +18 more
doaj +1 more source
Review of ionospheric effects of solar wind magnetosphere coupling in the context of the expanding contracting polar cap boundary model [PDF]
, 2006 This paper reviews the coupling between the solar wind, magnetosphere and ionosphere. The coupling between the solar wind and Earth’s magnetosphere is controlled by the orientation of the Interplanetary Magnetic Field (IMF).
Milan, S. E. +3 more
core +3 more sources
On the Creation, Depletion, and End of Life of Polar Cap Patches
Journal of Geophysical Research: Space Physics, 2023 Abstract Ionospheric convection patterns from the Super Dual Auroral Radar Network are used to determine the trajectories, transit times, and decay rates of three polar cap patches from their creation in the dayside polar cap ionosphere to their end of life on the nightside.
Nina Kristine Eriksen +11 more
openaire +3 more sources
Automated identification and tracking of polar-cap plasma patches at solar minimum [PDF]
Annales Geophysicae, 2014 A method of automatically identifying and tracking polar-cap plasma patches, utilising data inversion and feature-tracking methods, is presented.
R. Burston +3 more
doaj +1 more source
Positive storm effects in the dayside polar ionospheric F-region observed by EISCAT and ESR during the magnetic storm of 15 May 1997 [PDF]
, 2002 International audienceEISCAT/ESR radar data and in situ FAST and POLAR satellite observations are coordinately analyzed to investigate positive ionospheric storm effects in the dayside upper F-region in both the polar cap and the auroral oval during the ...
Schlegel, K. +15 more
core +2 more sources
Modulation of nightside polar patches by substorm activity [PDF]
Annales Geophysicae, 2009 Results are presented from a multi-instrument study showing the influence of geomagnetic substorm activity on the spatial distribution of the high-latitude ionospheric plasma.
A. G. Wood, S. E. Pryse, J. Moen
doaj +1 more source
Relationship of theoretical patch climatology to polar cap patch observations
Radio Science, 1996 During a southward orientation of the interplanetary magnetic field (IMF), patches are often observed moving antisunward across the polar cap. In saying “patches” we refer to structures in which the F region electron densities are enhanced relative to lower background levels; we do not in this paper consider patches which are observed optically (see J.
Bowline, M. D. +2 more
openaire +3 more sources
Observations of polar patches generated by solar wind Alfvén wave coupling to the dayside magnetosphere [PDF]
Annales Geophysicae, 1999 A long series of polar patches was observed by ionosondes and an all-sky imager during a disturbed period (Kp = 7- and IMF Bz < 0). The ionosondes measured electron densities of up to 9 × 1011 m-3 in the patch center, an increase above the density
P. Prikryl +6 more
doaj +1 more source
On the possible role of cusp/cleft precipitation in the formation of polar-cap patches [PDF]
Annales Geophysicae, 1999 The work describes experimental observations of enhancements in the electron density of the ionospheric F-region created by cusp/cleft particle precipitation at the dayside entry to the polar-cap convection flow.
I. K. Walker +5 more
doaj +1 more source
Polar tongue of ionisation during geomagnetic superstorm [PDF]
Annales Geophysicae, 2021 During the main phase of geomagnetic storms, large positive ionospheric plasma density anomalies arise at middle and polar latitudes. A prominent example is the tongue of ionisation (TOI), which extends poleward from the dayside storm-enhanced density ...
D. Pokhotelov +2 more
doaj +1 more source