Figure 9

Time-height cross sections of area-mean$\overline{{\mathit{u}}^{\prime }{\mathit{w}}^{\prime }}$in U _Z  = 0 and 3 (m · s^-1 · km^-1; upper and lower panels, respectively). These fluxes normalized by maximum flux magnitudes in Figure 7 are calculated from the experiments for cases (a) B1, (b) B3, and (c) B5. Contours show area-mean zonal wind velocity observed from the background-flow frame at 50 km (m · s^–1).