  Studies on the earlier reported spatial correlations between magnetic field
distributions and the torsional wave have been substantially extended to the
period 1975-2009. The investigations are based on Debrecen sunspot data and
magnetic field data of Mount Wilson. The recently available data and
distributions seem to support the idea that the torsional wave may be caused by
flows around the toruses which result in Coriolis-deviations forward and
backward, establishing the prograde and retrograde belts.
