Fig. 3: A East-West keogram (ewogram) of the FAC at the ionosphere and magnetosphere convection (Vϕ) on the magnetosphere equatorial plane from the global MHD simulations.
From: Global-scale magnetosphere convection driven by dayside magnetic reconnection

a1 The average FAC and b1 Vϕ in the invariant latitude 71°-74°. a2 The average FAC and b2 Vϕ in the invariant latitude 65°-70°. Nan values are outside the closed-part of the magnetosphere. The Blue and red dash lines illustrate evolution along the east-west direction.