Počet záznamů: 1
Space-time segmentation method for study of the vertical structure and evolution of solar supergranulation from data provided by local helioseismology
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SYSNO ASEP 0355104 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Space-time segmentation method for study of the vertical structure and evolution of solar supergranulation from data provided by local helioseismology Tvůrce(i) Žlebčík, R. (CZ)
Švanda, Michal (ASU-R) RID, ORCID
Klvaňa, Miroslav (ASU-R) RIDZdroj.dok. New Astronomy. - : Elsevier - ISSN 1384-1076
Roč. 16, č. 1 (2011), s. 1-5Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Sun ; photosphere ; helioseismology Vědní obor RIV BN - Astronomie a nebeská mechanika, astrofyzika CEP IAA300030808 GA AV ČR - Akademie věd CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000282116700001 DOI 10.1016/j.newast.2010.06.002 Anotace Most of the papers about supergranulation deal with its surface properties. Local helioseismology provides an opportunity to look below the surface and see the vertical structure of this convective feature. 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. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2013
Počet záznamů: 1