Analysis of relationship between flaring activity and subphotospheric flows in NOAA 9393

A. Kulinová, E. Dzifčáková, T. L. Duvall, A. G. Kosovichev

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


The relationship between the subphotospheric flows and flaring activity is not well understood. It is believed that subphotospheric shearing flows play important role in creating unstable magnetic topology that leads to initiation of flares and CMEs. In this paper, we study subphotospheric flows and their relationship with two flares observed in active region NOAA 9393. One of the flares is connected with halo CME. SOHO/MDI and helioseismology data are used for determining the changes in morphology and are compared with changes of the topology as observed by TRACE. We find evidence of some connections between subphotospheric flows within 12 Mm below the photosphere and changes of photospheric magnetic fields and also the flaring activity.

Original languageEnglish (US)
Pages (from-to)125-128
Number of pages4
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number535
StatePublished - 2003
Externally publishedYes
EventProceedings of the ISCS 2003; Solar Variability as an Input to the Earth's Environment - Tatranska Lomnica, Czech Republic
Duration: Jun 23 2003Jun 28 2003

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


  • CME
  • Magnetic reconnection
  • Solar flares
  • Subphotospheric flows


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