Appendix A
Statement of Task
An ad hoc committee of the National Academies of Sciences, Engineering, and Medicine will plan a workshop to bring together atmospheric and ocean climate experts to review the current science for decadal climate variability. Workshop participants will be asked to:
- examine our understanding of the processes governing decadal-scale variability in key climate parameters, observational evidence of decadal variability and potential forcings, and model-based experiments to explore possible factors affecting decadal variations;
- identify key science, observing, and modeling gaps;
- consider the utility and accuracy of various observations for tracking long-term climate variability, anticipating the onset and end of hiatus regimes, and closing the long-term heat budget;
- consider the utility of hiatus regimes as a metric for evaluating performance of long-term climate models; and
- consider how best to communicate current understanding of climate variability, including potential causes and consequences, to non-expert audiences.
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