34th Solar Physics Division Meeting, June 2003
Session 8 Helioseismology
Poster, Monday, June 16, 2003, 3:30-5:00pm, Mezzanine

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[8.11] Flow maps from GONG+ ring diagrams

R. Komm, J. Bolding (NSO), T. Corbard (Observatoire de la Cote d'Azur), F. Hill, R. Howe, C. Toner (NSO)

We show first results derived from one month or more of GONG++ data analyzed with a ring-diagram technique as part of the GONG++ local helioseimology analysis pipeline. We focus on observations obtained during spring 2002 and especially on Carrington rotation 1988 (2002/3/30 - 2002/4/26) and measure horizontal flow components over a range of depths up to 16 Mm on a spatial grid of 7.5 degree in latitude and longitude. We calculate zonal and meridional flow components and compare the average zonal flows with corresponding results of a global rotation inversion. We create and analyze synoptic maps of large-scale flows and compare them with corresponding synoptic maps of magnetic activity. We will present the latest results.

RH and RK are partially supported by NASA Grant S-92698-F. NSO is operated by AURA, Inc under a co-operative agreement with the National Science Foundation.

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Bulletin of the American Astronomical Society, 35 #3
© 2003. The American Astronomical Soceity.