The Virtual Poster Conference of the International Association for Urban Climate (IAUC) is held on 30 August – 1 September 2022. A study about “Chasing the plume – Investigating the urban boundary layer (downwind) of a city with transects of fixed and mobile ceilometer measurements” was presented by Daniel Fenner (University of Freiburg) via poster in the context of the “Urban climate processes: Boundary-layer meteorology” Session during the second day of the Conference.