Time-distance helioseismology with f modes as a method for measurement of near-surface flows

T. L. Duvall, L. Gizon

Research output: Contribution to journalArticle


Travel times measured for the f mode have been used to study flows near the solar surface in conjunction with simultaneous measurements of the magnetic field. Previous flow measurements of Doppler surface rotation, small magnetic feature rotation, supergranular pattern rotation, and surface meridional circulation have been confirmed. In addition, the flow in supergranules due to Coriolis forces has been measured. The spatial and temporal power spectra for a six-day observing sequence have been measured.

Original languageEnglish (US)
Pages (from-to)177-191
Number of pages15
JournalSolar Physics
Issue number1-2
StatePublished - Dec 1 2000


ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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