All Figures

	Figure 1: Upper panel: magnetogram averaged over 1 h, after remapping, showing the line-of-sight magnetic field (in Gauss). Only half of the available field-of-view is shown. Middle panel: same for the horizontal divergence at the supergranular scale (in s-1). Lower panel: same for the Dopplergram (line-of-sight velocity field in m/s), after angular correction and spatial smoothing (see text).
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In the text

	Figure 2: Upper panel: line-of-sight magnetic field (in Gauss) versus longitude and time, after an averaging over 0.4 in latitude, for latitude -2.8 (crossing disk center). Middle panel: same for the horizontal divergence (in s-1) on the supergranular scale. Lower panel: same for the Dopplergram (line-of-sight velocity in m/s), after angular correction and spatial smoothing (see text).
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In the text

	Figure 3: Sidereal rotation rate derived from the global tracking of the magnetic field versus the maximum correlation between magnetograms, for January 1997 (stars) and March 1997 (diamonds).
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In the text

Figure 4: Upper panel: maximum correlation versus the magnetic field averaged over the cells, derived from the feature tracking of diverging flows, for the January 1997 series (solid line) and for the March 1997 series (dotted line). Most of the signal above 10 G is due to the presence of a pore surrounded by active network in the January 1997 series. Middle panel: same for the sidereal rotation rate derived from the magnetograms versus the magnetic field averaged over the cells. Lower panel: same for the sidereal rotation rate derived from the magnetograms versus the maximum correlation.

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In the text