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The relationship between meridional drift and rotation of the large-scale solar magnetic field

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Abstract

The pattern of torsional oscillations was detected in the rotation of the large-scale magnetic field using the method of two-dimensional correlation functions. The position of areas of fast and slow rotation agrees with the Doppler picture obtained by Ulrich et al. (1988). The torsional wave amplitude is 20–40 ms−1 and increases with latitude. A strong correlation of the pattern of residual E-W rate with the meridional drift pattern, obtained from the same data, was determined. The sign of correlation is consistent with the results reported by Ward (1965).

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References

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Latushko, S. The relationship between meridional drift and rotation of the large-scale solar magnetic field. Sol Phys 146, 401–404 (1993). https://doi.org/10.1007/BF00662023

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Keywords

  • Magnetic Field
  • Correlation Function
  • Strong Correlation
  • Wave Amplitude
  • Torsional Oscillation