To what
extent can we determine the flows in an
active region by observing changes in the magnetic
field at the photosphere?
Movie of 8210
evolving - clearly there are motions, describe themqualitatively.Ask these questions:To what extent is it possible to use
sequences of magnetograms and vector magnetograms to determine the 3-d
velocity field simply by observing changes in the pattern from a sequence of
magneograms?