Helioseismology of time-varying flows through the solar cycle

Laurent Gizon

doi:10.1007/s11207-005-4983-9

Helioseismology of time-varying flows through the solar cycle

Laurent Gizon

Center for Space Science

Research output: Contribution to journal › Article › peer-review

Abstract

Flows in the upper convection zone are measured by helioseismology on a wide variety of scales. These include differential rotation and meridional circulation, local flows around complexes of magnetic activity and sunspots, and convective flows. The temporal evolution of flows through cycle 23 reveals connections between mass motions in the solar interior and the large-scale characteristics of the magnetic cycle. Here I summarize the latest observations and their implications. Observations from local helioseismology suggest that subsurface flows around active regions introduce a solar-cycle variation in the meridional circulation.

Original language	English (US)
Pages (from-to)	217-228
Number of pages	12
Journal	Solar Physics
Volume	224
Issue number	1-2
DOIs	https://doi.org/10.1007/s11207-005-4983-9
State	Published - Oct 2004

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1007/s11207-005-4983-9

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abstract = "Flows in the upper convection zone are measured by helioseismology on a wide variety of scales. These include differential rotation and meridional circulation, local flows around complexes of magnetic activity and sunspots, and convective flows. The temporal evolution of flows through cycle 23 reveals connections between mass motions in the solar interior and the large-scale characteristics of the magnetic cycle. Here I summarize the latest observations and their implications. Observations from local helioseismology suggest that subsurface flows around active regions introduce a solar-cycle variation in the meridional circulation.",

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AB - Flows in the upper convection zone are measured by helioseismology on a wide variety of scales. These include differential rotation and meridional circulation, local flows around complexes of magnetic activity and sunspots, and convective flows. The temporal evolution of flows through cycle 23 reveals connections between mass motions in the solar interior and the large-scale characteristics of the magnetic cycle. Here I summarize the latest observations and their implications. Observations from local helioseismology suggest that subsurface flows around active regions introduce a solar-cycle variation in the meridional circulation.

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Helioseismology of time-varying flows through the solar cycle

Abstract

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