*Sean M Davis^1,2, Michaela Hegglin³, Masatomo Fujiwara⁴, Rossana Dragani⁵, Yayoi Harada⁶, Chiaki Kobayashi⁷, Craig Long⁸, Gloria Manney^9,10, Eric Nash¹¹, Susann Tegtmeier¹², Tao Wang¹³, Krzysztof Wargan¹⁴, Jonathon Wright¹⁵ (1.NOAA Earth System Research Laboratory, 2.Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado at Boulder, 3.University of Reading, 4.Hokkaido University, 5.European Centre for Medium-Range Weather Forecasts, 6.Japan Meteorological Agency, 7.Meteorological Research Institute, Japan Meteorological Agency, 8.NOAA Climate Prediction Center, 9.NorthWest Research Associates, 10.New Mexico Institute of Mining and Technology, 11.Science Systems and Applications, Inc., Lanham, 12.GEOMAR Helmholtz Centre for Ocean Research , 13.NASA Jet Propulsion Laboratory/California Institute of Technology, 14.NASA Global Modeling and Assimilation Office, 15.Tsinghua University)

*Tao Wang¹ (1.JPL/NASA/Caltech)

*Sean M Davis^1,2, Michaela Hegglin³, Masatomo Fujiwara⁴, Rossana Dragani⁵, Yayoi Harada⁶, Chiaki Kobayashi⁷, Craig Long⁸, Gloria Manney^9,10, Eric Nash¹¹, Susann Tegtmeier¹², Tao Wang¹³, Krzysztof Wargan¹⁴, Jonathon Wright¹⁵ (1.NOAA Earth System Research Laboratory, 2.Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado at Boulder, 3.University of Reading, 4.Hokkaido University, 5.European Centre for Medium-Range Weather Forecasts, 6.Japan Meteorological Agency, 7.Meteorological Research Institute, Japan Meteorological Agency, 8.NOAA Climate Prediction Center, 9.NorthWest Research Associates, 10.New Mexico Institute of Mining and Technology, 11.Science Systems and Applications, Inc., Lanham, 12.GEOMAR Helmholtz Centre for Ocean Research , 13.NASA Jet Propulsion Laboratory/California Institute of Technology, 14.NASA Global Modeling and Assimilation Office, 15.Tsinghua University)

*Likun Xue¹, Qiaozhi Zha², Liang Wen¹, Tao Wang², Wenxing Wang¹ (1.Shandong University, 2.The Hong Kong Polytechnic University)

*Noel S Keenlyside^1,2,3, Fumiaki Ogawa^1,3, HoNam Hoffman Cheung^1,3, Yongqi Gao^2,3,1, Torben Koenigk⁴, Vladimir Semenov⁵, Lingling Suo^2,3, Shuting Yang⁶, Tao Wang⁷, Martin Peter King^8,3, Guillaume Gastineau⁹, Sergey Gulev¹⁰ (1.Geophysical Institute, University of Bergen , 2.Nansen Environmental and Remote Sensing Center, 3.Bjerknes Cente for Climate Research, 4.Swedish Meteorological and Hydrological Institute, Sweden, 5.Helmholtz centre for ocean research Kiel GEOMAR, Germany, 6.Danish Meteorological Institute, Denmark, 7.Insititute of Atmospheric Physics, China, 8.Uni-Research Climate, Norway, 9.Sorbonne universities, France, 10.Shirshov Institute of Oceanology, Russia)