LFRic: Meeting the challenges of scalability and performance portability in Weather and Climate models. - Samantha V. Adams; Rupert W. Ford; M. Hambley; J. M. Hobson; I. Kavcic; Christopher M. Maynard; Thomas Melvin; Eike Hermann Müller; S. Mullerworth; Andrew R. Porter; Mike Rezny; Ben Shipway; et al. (J. Parallel Distributed Comput., 2019)