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How Large Scale Flows in the Solar Convection Zone may Influence Solar ActivityLarge scale flows within the solar convection zone are the primary drivers of the Sun s magnetic activity cycle. Differential rotation can amplify the magnetic field and convert poloidal fields into toroidal fields. Poleward meridional flow near the surface can carry magnetic flux that reverses the magnetic poles and can convert toroidal fields into poloidal fields. The deeper, equatorward meridional flow can carry magnetic flux toward the equator where it can reconnect with oppositely directed fields in the other hemisphere. These axisymmetric flows are themselves driven by large scale convective motions. The effects of the Sun s rotation on convection produce velocity correlations that can maintain the differential rotation and meridional circulation. These convective motions can influence solar activity themselves by shaping the large-scale magnetic field pattern. While considerable theoretical advances have been made toward understanding these large scale flows, outstanding problems in matching theory to observations still remain.
Document ID
20040161165
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Hathaway, D. H.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 22, 2013
Publication Date
January 1, 2004
Subject Category
Solar Physics
Meeting Information
Meeting: NSO Workshop #22: Large Scale Structures and their Role in Solar Activity
Location: Sunspot, NM
Country: United States
Start Date: October 18, 2004
End Date: October 22, 2004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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