SOHO CoRoT Kepler Picard SDO GONG

HMI Time-Distance Pipeline: An Overview and Data Products


Zhao Junwei


Stanford University


First results from new space missions
Auteur(s) supplémentaire(s)S. Couvidat, R. Bogart, T.L. Duvall, Jr., A.G. Kosovichev, K.V. Parchevsky, J.G. Beck (1), A. Birch (2)
Institution(s) supplémentaire(s)(2) CoRA NWRA, Boulder, CO, USA


The Helioseismic and Magnetic Imager on Solar Dynamics Observatory provides
uninterrupted high-resolution observations of solar oscillations over the
entire disk. This gives a unique opportunity for mapping subsurface flows
and wave-speed structures and investigating their role in the Sun's dynamics
and magnetic activity on various scales by methods of local helioseismology.
A data analysis pipeline for the time-distance helioseismology analysis has
been developed and implemented at the SDO Joint Science Operation Center
(JSOC) at Stanford. It provides near-real time processing of the
helioseismology data. We provide an overview of this pipeline, including
the data flow procedures, measurement and inversion codes, and our
data products.
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