A procedure for the inversion of f‐mode travel times for solar flows | Zendy

Jackiewicz J. | Zendy; Gizon L. | Zendy; Birch A. C. | Zendy; Thompson M. J. | Zendy

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A procedure for the inversion of f‐mode travel times for solar flows

Author(s) -

Jackiewicz J.,

Gizon L.,

Birch A. C.,

Thompson M. J.

Publication year - 2007

Publication title -

astronomische nachrichten

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 63

eISSN - 1521-3994

pISSN - 0004-6337

DOI - 10.1002/asna.200610725

Subject(s) - inversion (geology) , wavelength , mode (computer interface) , travel time , geodesy , physics , computational physics , meteorology , geology , optics , computer science , seismology , engineering , transport engineering , tectonics , operating system

We perform a two‐dimensional inversion of f‐mode travel times to determine near‐surface solar flows. The inversion is based on optimally localized averaging of travel times. We use finite‐wavelength travel‐time sensitivity functions and a realistic model of the data errors.We find that it is possible to obtain a spatial resolution of 2 Mm. The error in the resulting flow estimate ultimately depends on the observation time and the number of travel distances used in the inversion. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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