I was based in the Atmospheric, Oceanic and Planetary Physics sub-Department at the University of Oxford (2004-2012). I was funded by the National Centre for Earth Observation working within Theme 3 on Atmospheric Composition, developing trace gas retrievals from the Infrared Atmospheric Sounding Interferometer (2009-2012). As of September 2012, I've moved to the ESA Climate Office, Harwell UK.