Tag Archives: dynamo

98. Solar-Cycle Variations of Meridional Flows in the Solar Convection Zone with Helioseismic Methods

Contributed by Chia-Hsien Lin. Posted on May 18, 2018

Meridional flows during the solar minimum and maximum years are derived using 14 years of SOHO/MDI data. The flows changed significantly from the minimum to the maximum, and major changes were associated with the active latitudes.

91. On The Origin of the Double-Cell Meridional Circulation in the Solar Convection Zone

Contributed by Valery Pipin. Posted on March 19, 2018

It is demonstrated that when taking into account of the radial inhomogeneity of the Coriolis number, the solar-like differential rotation and the double-cell meridional circulation can both be reproduced by the mean-field model.

89. Information theoretic approach to discovering causalities in solar cycle

Contributed by Simon Wing. Posted on March 15, 2018

Various observable, such as polar field, meridional flow, and sunspot number, are examined to identify information flow, causality, and time delay between them during solar cycles. It is expected that this analysis can provide observational constraints on solar cycle models and theories.