Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1768155 | Advances in Space Research | 2007 | 4 Pages |
Abstract
It is well accepted that the solar cycle originates from a magnetohydrodynamics dynamo deep inside the Sun. Many dynamo models have long been proposed based on a lot of observational constraints. In this paper, using 342 NSO/Kitt Peak solar synoptic charts we study the solar cycle phases in different solar latitudinal zones to set further constraints. Our results can be summarized as follows: (1) The variability of solar polar regions' area has a correlation with total unsigned magnetic flux in advance of 5Â years. (2) The high-latitude region mainly appears unipolar in the whole solar cycle and its flux peak time lags sunspot cycle for 3Â years. (3) For the activity belt, it is not surprised that its phase be the same as sunspot's. (4) The flux peak time of the low-latitude region shifts forward with an average gradient of 32.2Â day/deg. These typical characteristics may provide some hints for constructing an actual solar dynamo.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
W.B. Song,