Large-Scale Subsurface Dynamics of the Sun from SDO/HMI

Details Large-Scale Subsurface Dynamics of the Sun from SDO/HMI Large-Scale Subsurface Dynamics of the Sun from SDO/HMI

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh31d..01z&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH31D-01

Astronomy and Astrophysics

Astrophysics

[7522] Solar Physics, Astrophysics, And Astronomy / Helioseismology

Scientific paper

The Helioseismic and Magnetic Imager onboard Solar Dynamics Observatory (SDO/HMI) gives continuous Doppler observations of the solar photosphere, providing a unique opportunity for helioseismology analyses of the interior structure and flows. The huge amount of SDO/HMI data is processed through the helioseismology data analysis pipelines developed and implemented at the SDO Joint Science Operations Center at Stanford. In particular, the time-distance analysis pipeline routinely provides nearly-full-disk subsurface flow fields of the Sun up to 20 Mm in depth every eight hours. I present an overview of new results, obtained from the pipeline, on flow dynamics beneath active regions, large-scale convective flows and global circulation of the Sun, and discuss relations of the flow dynamics to solar magnetic fields and activity.

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