Long-term variations in meridional flows

Javaraiah, J

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dc.contributor.author	Javaraiah, J
dc.date.accessioned	2010-07-16T10:04:06Z
dc.date.available	2010-07-16T10:04:06Z
dc.date.issued	2010
dc.identifier.citation	Hasan, S. S and Rutten, R. T., eds., Magnetic coupling between the interior and atmosphere of the Sun, Proceedings of the conference "Centenary commemoration of the discovery of the Evershed effect" Dec, 2 - 5, 2008, Indian Institute of Astrophysics, Bangalore, India, pp. 361 – 363	en
dc.identifier.isbn	978-3-642-02858-8
dc.identifier.uri	http://hdl.handle.net/2248/5201
dc.description	Restricted Access
dc.description	The original publication is available at springerlink.com
dc.description.abstract	Using sunspot group data from Greenwich and from the Solar Optical Observation Network during 1879–2008, we find that the mean meridional motion of the observed spot groups varies considerably on a time scale of about 10–20 years. During the current cycle 23, which is anomalous in the sense that the cycle pair 22 and 23 violated the Gnevyshev and Ohl rule, the mean meridional speed of the spot groups is substantially higher than it was during the last 10–11 cycles. We also find a roughly 18-year periodicity in the mean meridional motion of spot groups in the northern hemisphere, and a roughly 25-year periodicity in the north–south asymmetry of the mean meridional motion.	en
dc.language.iso	en	en
dc.publisher	Springer	en
dc.relation.ispartofseries	Astrophysics and Space Science Proceedings;
dc.relation.uri	http://www.springerlink.com/content/g491752g78v0t245/	en
dc.rights	© Springer	en
dc.title	Long-term variations in meridional flows	en
dc.type	Article	en