The SINTEX-F model integrations were carried out on the Earth Simulator. The atmosphere model (ECHAM4) was provided by MPI-Met (Hamburg), the ocean model (OPA) by LODYC (Paris), and the coupler (OASIS) by CERFACS (Toulouse). We thank Gary Meyers, Antonio Navarra, Stuart Godfrey, Michael McPhaden, Shang-Ping Xie, and Roxana Wajsowicz for helpful discussions and two anonymous reviewers for their valuable comments that helped improve the manuscript greatly.
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