Posterior distribution of isothermal line retrieval with an added day-to-night side wind in the loweratmosphere and a vertical wind in the upper atmosphere. The parameter on the right h is then used to calculate the pressure where the velocity models are switched via Eq. (9). Most notably, the retrieval is able to produce a solution with a day-to-night side wind in the upper layers of the atmosphere, but due to the data quality the solution with solely a vertical wind (h closer to 0.) is degenerate (we would like to point out the two local maxima for h).