Global Evolution of Photospheric Magnetic Fields

  • V. I. Makarov
  • K. R. Sivaraman
Part of the International Astronomical Union book series (IAUS, volume 138)


The main features concerning the evolution of the large scale photospheric magnetic fields derived from synoptic maps as well as from H-alpha synoptic charts are reviewed. The significance of a variety of observations that indicate the presence of a high latitude component as a counterpart to the sunspot phenomenon at lower latitudes is reviewed. It is argued that these two components describe the global magnetic field on the sun. It is demonstrated that this scenario is able to link many phenomena observed on the sun (coronal emission, ephemeral active regions, geomagnetic activity, torsional oscillations, polar faculae and global modes in the magnetic field pattern) with the global magnetic activity.


Solar Cycle Solar Phys Geomagnetic Activity Torsional Oscillation Solar Magnetic Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© International Astronomical Union 1990

Authors and Affiliations

  • V. I. Makarov
    • 1
  • K. R. Sivaraman
    • 2
  1. 1.Kislovodsk Station of the Pulkovo ObservatoryKislovodskUSSR
  2. 2.Indian Institute of AstrophysicsBangaloreIndia

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