dc.contributor.author |
Javaraiah, J |
|
dc.date.accessioned |
2012-02-28T13:46:01Z |
|
dc.date.available |
2012-02-28T13:46:01Z |
|
dc.date.issued |
2007-05 |
|
dc.identifier.citation |
Monthly Notices of the Royal Astronomical Society, Vol. 377, No. 1, pp. L34-L38 |
en |
dc.identifier.uri |
http://hdl.handle.net/2248/5708 |
|
dc.description.abstract |
Using Greenwich and Solar Optical Observing Network sunspot group data obtained during the period 1874-2005, we find that the sums of the areas of the sunspot groups in the 0°-10° latitude-interval of the Sun's northern hemisphere and in the time-interval of -1.35 yr to +2.15 yr from the time of the preceding minimum - and in the same latitude interval of the southern hemisphere but +1.0 yr to +1.75 yr from the time of the maximum - of a sunspot cycle correlate well with the amplitude (maximum of the smoothed monthly sunspot number) of its immediate following cycle. Using this relationship it is possible to predict the amplitude of a sunspot cycle about 9-13 yr in advance. We predicted 74 +/- 10 for the amplitude of the upcoming cycle 24. Variations in solar meridional flows during solar cycles and 9-16 yr variations in solar equatorial rotations may be responsible for the aforementioned relationship, which seems to be related to the 22-yr solar magnetic cycle. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Wiley-Blackwell |
en |
dc.relation.uri |
http://adsabs.harvard.edu/abs/2007MNRAS.377L..34J |
en |
dc.relation.uri |
http://dx.doi.org/10.1111/j.1745-3933.2007.00298.x |
|
dc.rights |
© Wiley-Blackwell |
en |
dc.subject |
Sun: activity |
en |
dc.subject |
Sun: magnetic fields |
en |
dc.subject |
Sun: rotation |
en |
dc.subject |
Sun: sunspots |
en |
dc.title |
North-south asymmetry in solar activity: predicting the amplitude of the next solar cycle |
en |
dc.type |
Article |
en |