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Planetary and Space Science, 1984
Changes of the geometry of the open field line region (namely, the polar cap) caused by the passage of a tangential IMF discontinuity are simulated using the model constructed by Akasofu and Roederer (1983). A singly-bounded open field line region tends to split into two, forming a narrow closed field line region and thus allowing the formations of a ...
S.-I. Akasofu, R. Williams, M. Roederer
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Changes of the geometry of the open field line region (namely, the polar cap) caused by the passage of a tangential IMF discontinuity are simulated using the model constructed by Akasofu and Roederer (1983). A singly-bounded open field line region tends to split into two, forming a narrow closed field line region and thus allowing the formations of a ...
S.-I. Akasofu, R. Williams, M. Roederer
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Polar cap inflation and deflation
Journal of Geophysical Research: Space Physics, 1985Dayside and nightside merging rates usually differ; first one dominates and then the other to maintain long‐term flux balance. The polar cap, defined as the area in the ionosphere penetrated by open field lines, expands when closed field lines open during dayside merging and contracts when open field lines close during tail merging.
G. L. Siscoe, T. S. Huang
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The polar cap absorption effect
Space Science Reviews, 1962Techniques for observing polar-cap absorption (PCA) events are outiined. The characteristics, time sequences, associated solar-terrestial phenomena, and effects of geomagnetic storms on PCA events are reviewed. The height of the absorbing region during the PCA event is considered.
D.C. Rose, Syed Ziauddin
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Polar-cap patches as a source of Doppler spread in the polar-cap: a case study
• Doppler curve for ePOP-RRI-CLY conjunction shows dramatic variability in ~500 Hz, especially during 100-250 s elapsed. • Received signal power also shows an eastward shift in the expected position of CLY's peak power. • Consistent with QAN-ALE deviations in Fig. 2.Gareth William Perry +3 more
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The Composition of the South Polar Cap of Mars Derived From Orbital Data
Journal of Geophysical Research E: Planets, 2021Mark Wieczorek +2 more
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Interhemispheric Study of Polar Cap Patch Occurrence Based on Swarm in Situ Data
Journal of Geophysical Research: Space Physics, 2017Yaqi Jin +2 more
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On the Entry and Transit of High-Density Plasma Across the Polar Cap
Journal of Geophysical Research: Space Physics, 2010Mark Lester, Kjellmar Oksavik, J Moen
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