We thank all the scientists and software engineers who contributed to the development of the CCSM4. Computational resources were provided by the Climate Simulation Laboratory at NCAR’s Computational and Information Systems Laboratory (CISL), sponsored by the National Science Foundation and other agencies. The CCSM is also sponsored by the Department of Energy. We also wish to thank the staff of the Earth System Grid (including Gary Strand from NCAR) and Mathew Maltrud (from LANL) for the support and contribution in downloading and facilitating data used in this study. The Earth System Grid is funded by the U.S. Department of Energy (DOE). Ernesto Muñoz and Wilber Weijer were supported by the Regional and Global Climate Modeling program of the DOE’s Office of Science, and by NSF-OCE Award 0928473. Ilana Wainer was supported by CNPq-MCT/INCT and FAPESP. Semyon Grodsky was supported by NOAA’s Climate Variability and Predictability (CVP) program. We thank Marlos Goes, Alicia Karspeck, and the anonymous reviewers for their helpful comments.
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