Wilbert Weijer¹, Wei Cheng², Sybren S Drijfhout³, Alexey V Fedorov⁴, Aixue Hu⁵, Laura C Jackson⁶, Wei Liu⁷, Elaine McDonagh⁸, Jennifer Mecking⁹ and Jiaxu Zhang¹, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Univ of Washington, Seattle, WA, United States, (3)Royal Netherlands Meteorological Institute, De Bilt, Netherlands, (4)Yale Univ, New Haven, CT, United States, (5)NCAR, Boulder, CO, United States, (6)UK Met Office, United Kingdom, (7)University of California Riverside, Riverside, CA, United States, (8)National Oceanography Centre, Southampton, United Kingdom, (9)University of Southampton, United Kingdom