Long-term variations in solar meridional circulation from geomagnetic data: implications for solar dynamo theory
| dc.creator | Georgieva, K. | |
| dc.creator | Kirov, B. | |
| dc.date | 2007-03-19 | |
| dc.date | 2007-12-20 | |
| dc.date.accessioned | 2026-07-07T08:50:27Z | |
| dc.date.available | 2026-07-07T08:50:27Z | |
| dc.description | Geomagnetic activity has two main peaks in the 11-year sunspot cycle caused by two types of solar agents: coronal mass ejections and high speed solar wind streams, whose variations in number and intensity are related to the variations in solar toroidal and poloidal fields, respectively. From the long-term variations in the lag between the two aa-index peaks we derive the long-term variations in solar meridional circulation. We use these relations to test the flux-transport solar dynamo theory and to explain some well known characteristics of the solar cycle. Based on these relations, we give a prediction for the amplitude (125) and epoch of the maximum (April 2011) of sunspot cycle 24. | |
| dc.description | this is the major revision of the paper "The long-term changes in solar meridional circulation as the cause for the long-term changes in the correlation between solar and geomagnetic activity", submitted to Annales Geophysicae | |
| dc.identifier | https://arxiv.org/abs/physics/0703187 | |
| dc.identifier | http://arxiv.org/abs/physics/0703187 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/144610 | |
| dc.subject | Space Physics | |
| dc.title | Long-term variations in solar meridional circulation from geomagnetic data: implications for solar dynamo theory | |
| dc.type | text |