Profiling of Lowermost Tropospheric Ozone from Simulated Geostationary Coastal and Air Pollution Events (GEO-CAPE) Measurements

The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission is required to be able to measure ozone with two degrees of freedom for signal (DFS) in the troposphere, and to provide sensitivity in the lowest 2 km (lowermost troposphere, LMT). We explore the feasibility of using multispectral measurements from the ultraviolet (UV) to the thermal infrared (TIR) to improve LMT ozone retrievals compared to conventional retrievals employing only the UV or the TIR. Simulations spanning a range of ozone mixing ratios indicate that the combination of UV, visible and TIR significantly improves the total column DFS as well as the LMT DFS. We will present results both for clear sky scenarios and those containing realistic cloud and aerosol loadings.