Compared to the Baseline case, both Steep and Plateau topographies shift ascent downstream, enhancing vertical motion on the nightside. The Steep case exhibits a sharper, more localized updraft near 120°–140° longitude, aligning with the evening terminator jet, while the Plateau case shows a broader region of enhanced ascent centered closer to the dayside. The Baseline configuration, in contrast, exhibits weaker and more symmetric vertical motion across the terminator.