TRANSITION REGION DYNAMICS FROM SUMER/SOHO OBSERVATIONS: SHAPE OF THE EMISSION SPECTRAL LINES

In the present paper the N-S asymmetry of 4 solar activity indices is estinated and discussed. The coronal green line measurements, the Wolf numbers and the sunspot area data - all of them are subjected to analysis over the 1943-1999 period, together with the NSO/SP data on the total magnetic field flux measured from 1975. The pair comparison of these four inices within different zones of solar latitude alloed to reveal a number of features in their mutual correlativness. As the coronal green line lintensity and the sunspot area display a long-termed wave in their N-S asymmetry - about 40 years in duration. While during the first half of the interval studied the N-hemisphere dominates (with a clear maximum around 1964-1966) then during the second half of the interval the activity measured over the S-hemispehre prevails. Quasi-biennal variations were identified both in the N-S asymmetry of the coronal green line brightness and that of the total magnetic flux. The performed study indicates a close relation between the global and local manifestations of solar activity, which are governed by the magnetic fields of different scales.