*Yu Nie¹, Adam Scaife^2,3, Hong-Li Ren^1,4, Ruth Comer², Martin Andrews² (1.Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, China, 2.Met Office Hadley Centre, Exeter, UK, 3.College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UK, 4.Department of Atmospheric Science, School of Environmental Studies, China University of Geoscience, Wuhan, China)

*Rosemary Eade^1,2, David Stephenson², Doug Smith¹, Adam Scaife^1,2, Leon Hermanson¹, Nick Dunstone¹ (1.Met Office Hadley Centre, 2.University of Exeter)