Supplemental Figure 2

A series of twelve NmF2 snapshots from the TDIM simulation, spaced ten minutes apart beginning at 2100 UT. In this simulation, the convection model was changed between the Heppner-Maynard "A" [By negative] and "BC" [By positive] patterns, corresponding to abrupt changes in the IMF By component. For an explanation of the coordinate system, see Supplemental Figure 1.