Richard Engelen is a member of the Senior Management Team of the European Centre for Medium-Range Weather Forecasts (ECMWF) and the Deputy Director of the Copernicus Atmosphere Monitoring Service, which ECMWF operates on behalf of the European Union. Engelen is a scientific expert in remote sensing and data assimilation of atmospheric composition with a special focus on the carbon cycle. He is (co-)author of more than 50 international peer-reviewed publications in the scientific literature as well as many contributions to conference and workshop proceedings. He is or has been a member of the Science Advisory Boards of several European projects and a member of expert panels for the European Commission as well as of various proposal review committees in the USA and in the Netherlands.