Wei Cheng¹, John Chiang², Wilbert Weijer³, Gokhan Danabasoglu⁴, Stephen G Yeager⁵, Who M Kim⁴, Peter R Gent⁴, Jiaxu Zhang⁶ and Dongxiao Zhang⁷, (1)University of Washington/JISAO and NOAA/PMEL, Seattle, WA, United States, (2)UC Berkeley, Geography, Berkeley, CA, United States, (3)Los Alamos National Laboratory, Los Alamos, NM, United States, (4)National Center for Atmospheric Research, Boulder, CO, United States, (5)NCAR, Oceanography, Boulder, CO, United States, (6)University of Wisconsin Madison, Madison, WI, United States, (7)JISAO/University of Washington and NOAA/PMEL, Seattle, WA, United States