Interplanetary magnetic field control of dayside transient event occurrence and motion in the ionosphere and magnetosphere [PDF]
Annales Geophysicae, 2004 The pressure pulse model for dayside transient ionospheric events predicts dawnward moving events at and prior to local noon during periods of spiral interplanetary magnetic field (IMF) orientation, but duskward moving events at and after local noon ...
G. I. Korotova +4 more
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Kinetic Equilibrium of Two-dimensional Force-free Current Sheets
The Astrophysical Journal, 2023 Force-free current sheets are local plasma structures with field-aligned electric currents and approximately uniform plasma pressures. Such structures, widely found throughout the heliosphere, are sites for plasma instabilities and magnetic reconnection,
Xin An +4 more
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Cosmic ray fluctuations and MHD waves in the solar wind
Solar-Terrestrial Physics, 2023 During large-scale solar wind disturbances, variations in galactic cosmic rays with periods from several minutes to 2–3 hours, which are called cosmic ray fluctuations in the scientific literature, often occur.
Starodubtsev S. A. +3 more
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Magnetosheath response to the interplanetary magnetic field tangential discontinuity [PDF]
Journal of Geophysical Research: Space Physics, 2000 We present a multipoint observational study of the magnetosheath response to the interplanetary magnetic field tangential discontinuities which form hot flow anomaly‐like (HFAs) structures. We identify these structures in the vicinity of the bow shock as well as deeper in the magnetosheath.
J. Šafránková +4 more
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Magnetohydrodynamic waves within the medium separated by the plane shock wave or rotational discontinuity [PDF]
Annales Geophysicae, 2005 Characteristics of small amplitude plane waves within the medium separated by the plane discontinuity into two half spaces are analysed. The approximation of the ideal one-fluid magnetohydrodynamics (MHD) is used.
A. A. Lubchich, I. V. Despirak
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A study of phase-steepened Alfvén waves in a high-speed stream at 0.29 AU [PDF]
Annales Geophysicae, 2000 This work performs a search of phase-steepened Alfvén waves under a priori ideal conditions: a high-speed solar wind stream observed in one of the closest approaches to the Sun by any spacecraft (Helios 2).
P. Alexander, P. Alexander
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Radial and latitudinal dependencies of discontinuities in the solar wind between 0.3 and 19 AU and −80° and +10° [PDF]
Annales Geophysicae, 2001 Directional discontinuities (DD) from 5 missions at 7 different locations between 0.3 and 19 AU and −80° and +10° in the 3D heliosphere are investigated during minimum solar activity.
A. Söding +4 more
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Timing of the solar wind propagation delay between L1 and Earth based on machine learning
Journal of Space Weather and Space Climate, 2021 Erroneous GNSS positioning, failures in spacecraft operations and power outages due to geomagnetically induced currents are severe threats originating from space weather. Knowing the potential impacts on modern society in advance is key for many end-user
Baumann Carsten, McCloskey Aoife E.
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On the response of ionospheric electrojets to solar wind discontinuities [PDF]
Annales Geophysicae, 2009 We investigate the ionospheric response to solar wind discontinuities as detected by the IE index computed from IMAGE ground magnetometers. The solar wind discontinuities include both sudden increases as well as decreases of the solar wind dynamic ...
M. Palmroth +4 more
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Multispacecraft observations of the terrestrial bow shock and magnetopause during extreme solar wind disturbances [PDF]
Annales Geophysicae, 2012 Three events are discussed from the declining phase of the last solar cycle when the magnetopause and/or the bow shock were observed unusually close to the Earth due to major interplanetary disturbances.
M. Tátrallyay +4 more
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