Surveys in Geophysics

, Volume 24, Issue 3, pp 247–267

The Riga Dynamo Experiment


  • Agris Gailitis
    • Institute of PhysicsLatvian University
  • Olgerts Lielausis
    • Institute of PhysicsLatvian University
  • Ernests Platacis
    • Institute of PhysicsLatvian University
  • Gunter Gerbeth
    • Forschungszentrum Rossendorf
  • Frank Stefani
    • Forschungszentrum Rossendorf

DOI: 10.1023/A:1024851818821

Cite this article as:
Gailitis, A., Lielausis, O., Platacis, E. et al. Surveys in Geophysics (2003) 24: 247. doi:10.1023/A:1024851818821


Cosmic magnetic fields, including the magnetic field of the Earth,are produced by the homogeneous dynamo effect in moving electricallyconducting fluids. We sketch the history of the underlying theoryand comment on previous attempts to realize homogeneous dynamos inthe laboratory. For the main part, we report on two series ofexperiments carried out at the Riga dynamo facility. In November1999 a slowly growing magnetic field eigenmode was observed forthe first time in a liquid metal experiment. In July 2000, themagnetic field saturation regime was studied and a number ofinteresting back-reaction effects were observed. A preliminaryinterpretation of the measured data is also presented.

dynamomagnetic field
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© Kluwer Academic Publishers 2003