Normalized forcing frequency dependence of the complex quadruploar term of the pressure anomaly field, ${\tilde{q}}_a$. Top: modulus of ${\tilde{q}}_a$. Bottom: imaginary part of ${\tilde{q}}_a$. The results of this study are depicted in blue (simulation with the current topography), red (simulation without topography), purple (simulations with the H-30-270 topography), and green (simulations with the H-75-150 topography) dots. The green line correspond to the best fit for the relationship between the tidal torque and the forcing frequency. The black lines represent the function ${\tilde{q}}_a$ as defined by Leconte et al. (2015) for a 1 bar atmosphere, a 10 bar atmosphere, and a Venus-like atmosphere. The current forcing frequency is indicated by the dotted red line.