Isotopic fractionation in planetary atmospheres

It is aimed to use isotopic fractionation as a means to study key problems in planetary-atmospheric chemistry. This will be achieved through a leading international collaboration in which experimental and quantum-computational studies of fundamental isotopic molecular photodissociation processes are used to elucidate isotopic fractionation processes, thereby enabling state-of-the-art photochemical modelling to provide insight into the recent evolution of planetary atmospheres. Expected results include resolution of long-standing issues in Earth's ozone chemistry and an improved understanding of atmospheric evolution on Venus and Titan. This timely project serves three current space missions: Venus Express, Cassini, and New Horizons.