Počet záznamů: 1

Space-time segmentation method for study of the vertical structure and evolution of solar supergranulation from data provided by local helioseismology

  1. 1.
    0368910 - ASU-R 2012 RIV NL eng J - Článek v odborném periodiku
    Žlebčík, R. - Švanda, Michal - Klvaňa, Miroslav
    Space-time segmentation method for study of the vertical structure and evolution of solar supergranulation from data provided by local helioseismology.
    New Astronomy. Roč. 16, č. 1 (2011), s. 1-5 ISSN 1384-1076
    Grant CEP: GA AV ČR IAA300030808
    Grant ostatní: ESA(XE) ESA-PECS project No. 98030
    Výzkumný záměr: CEZ:AV0Z10030501
    Klíčová slova: Sun * photosphere * interior
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 1.411, rok: 2011

    We present a concept of a (3 + 1)-D segmentation algorithm capable of recognising individual supergranules in a sequence of helioseismic 3-D flow maps. As an example, we applied this method to the state-of-the-art data and derived descriptive statistical properties of segmented supergranules - typical size of 20-30 Mm, characteristic lifetime of 18.7 h, and estimated depth of 15-20 Mm. We present preliminary results obtained on the topic of the three-dimensional structure and evolution of supergranulation. The method has great potential in analysing the better data expected from the helioseismic inversions, which are being developed.
    Trvalý link: http://hdl.handle.net/11104/0203119