Measurement of boundary layer ozone concentrations on‐board a Skywalker unmanned aerial vehicle

This study demonstrates novel measurements of in situ ozone ( O 3 ) 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 O 3 concentrations provided a useful additional indicator of O 3 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 .