HR: 1340h
AN: SH13A-1143    [Abstracts]
TI: Large-Scale Flow Fields Beneath Major Solar Active Regions
AU: * Zhao, J
EM: junwei@quake.stanford.edu
AF: HEPL, Stanford University, 455 via Palou, Stanford, CA 94305-4085
AU: Kosovichev, A G
EM: sasha@quake.stanford.edu
AF: HEPL, Stanford University, 455 via Palou, Stanford, CA 94305-4085
AB: By use of MDI dynamic campaign data and by employing time-distance helioseismology, we have continued our efforts to map synoptic flow charts in the solar interior to deeper depths, especially under some major active regions, such as AR9393 and AR10486. Two dimensional horizontal flow fields, as well as vorticity and kinetic helicity distributions, are presented for a few Carrington rotations. Flow fields, vorticity and kinetic helicity distributions are studied in more details under major solar active regions, in particular, before and after major solar flares. We try to identify connections between solar flares with these subsurface dynamical properties.
DE: 7522 Helioseismology
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting