The Radial Interplanetary Field Strength at Sunspot Minimum as Polar Field Proxy and Solar Cycle Predictor

The minimum value of the geomagnetic aa index has served as a remarkably successful predictor of solar cycle amplitude. This value is reached near or just after sunspot minimum, when both the near-Earth solar wind speed and interplanetary magnetic field (IMF) strength fall to their lowest values. At...

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Veröffentlicht in:	Astrophysical journal. Letters 2024-02, Vol.961 (2), p.L27
1. Verfasser:	Wang, Y.-M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Charged particles Current sheets Dipole moments Dynamo theory Equator Field strength Geomagnetic activity Geomagnetism Heliospheric current sheet Interplanetary magnetic field Interplanetary magnetic fields Magnetic fields Meridional flow Solar cycle Solar dynamo Solar magnetic field Solar magnetic fields Solar minimum Solar wind Solar wind speed Sunspot cycle Sunspots Wind speed
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