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Magnetic Helicity and the Solar Dynamo [PDF]
Entropy, 2019 Solar magnetism is believed to originate through dynamo action in the tachocline. Statistical mechanics, in turn, tells us that dynamo action is an inherent property of magnetohydrodynamic (MHD) turbulence, depending essentially on magnetic helicity ...
John V. Shebalin
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Dynamo Models of the Solar Cycle [PDF]
Living Reviews in Solar Physics, 2005 This paper reviews recent advances and current debates in modeling the solar cycle as a hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models that are nonetheless detailed enough to be comparable to solar cycle ...
Charbonneau Paul
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Geophysical and Astrophysical Fluid Dynamics, 1991 AbstractThe traditionalαΩ-dynamo as a model for the solar cycle has been successful in explaining the butterfly diagram, phase relations between poloidal and toroidal field, and polar branch migration features. Observational and theoretical achievements in recent years have however shaken this picture.
M Stix
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Helioseismic evidence that the solar dynamo originates near the tachocline [PDF]
Scientific ReportsThe exact location of the solar dynamo remains uncertain–whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline - a region of sharp transition in the solar rotation, located at the ...
Krishnendu Mandal +1 more
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Evaluating solar-like behavior in turbulent alpha and Babcock–Leighton mechanisms using non-kinematic nonlinear flux-transport solar dynamos [PDF]
Scientific ReportsIn this study, we simulate 30,000 years of solar activity using turbulent-alpha (TA) and Babcock–Leighton (BL) mechanisms in a non-kinematic, nonlinear mean field flux-transport solar dynamo model.
Fadil Inceoglu, Rainer Arlt
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Dynamo Models of the Solar Cycle
Living Reviews in Solar Physics, 2010 This paper reviews recent advances and current debates in modeling the solar cycle as a hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models that are nonetheless detailed enough to be comparable to solar cycle ...
Paul Charbonneau
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Space Science Reviews, 2016 A brief summary of the various observations and constraints that underlie solar dynamo research are presented. The arguments that indicate that the solar dynamo is an alpha-omega dynamo of the Babcock-Leighton type are then shortly reviewed. The main open questions that remain are concerned with the subsurface dynamics, including why sunspots emerge at
Mausumi Dikpati +2 more
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Atmosphere, 2022 The purpose of space weather is the systemic study of the Sun–Earth system, in order to determine the impact of solar events on the electromagnetic environment of the Earth.
Christine Amory-Mazaudier
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Solar cycle variations in equatorial ionospheric zonal electric fields near sunrise
Earth and Planetary Physics, 2023 In this study, we investigate the solar cycle dependence of the sunrise ionospheric zonal electric fields at the equator under geomagnetically quiet conditions.
JunJie Chen +3 more
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The 8‐Year Solar Cycle During the Maunder Minimum
AGU Advances, 2023 The presence of grand minima, characterized by significantly reduced solar and stellar activity, brings a challenge to the understanding of solar and stellar dynamo. The Maunder Minimum (1645–1715 AD) is a representative grand solar minimum.
Limei Yan +10 more
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