Edinburgh Napier University

  This study demonstrates novel measurements of in situ ozone (O3) concentrations and thermodynamics sampled on‐board an instrumented Skywalker Unmanned Aerial Vehicle (UAV). Small spatial and temporal gradients were observed over a localized region, which nearby ground‐based in situ measurements lack the ability to resolve. It was found that the UAV‐measured O3 concentrations provided a useful additional indicator of O3 variability at the sub‐urban scale. The ability to sample subtle variability over a localized area highlights the important and novel capabilities of UAVs to rapidly characterize local area micrometeorology and chemistry.