Magnetic coupling between the corona and the solar dynamo

We summarize published works describing the behavior of the large-scale solar corona over an 11-year solar cycle. This hydromagnetic description goes beyond magnetic flux emergence, flares, coronal mass ejections, prominences and their related structures as individual events to see their collective role in the coronal reversal of the global magnetic field in response to the solar dynamo. Central to this process is an implied transport of systems of twisted magnetic flux from the solar dynamo, first into the corona and then out as coronal mass ejections into the heliosphere. This transport combined with the observed hemispherical distribution of magnetic twists in the solar atmosphere suggests an active coupling in which the corona serves as a magnetic sink for the dynamo.