Terms of Reference

1. Organize and carry out model experiments and intercomparisons to support the scientific objectives of the seasonal-to-interannual component of CLIVAR including model experiments to aid the design of the climate observing system.
   
2. Organize and coordinate model simulations and multi-model ensemble experimental predictions of S-I variations. Organize joint modeling experiments to quantify skills of experimental prediction.
   
3. Identify key scientific questions on predictability of S-I variations including their decadal variations. Carry out model experiments to answer these questions and suggest to the Science Steering Committee (SSC) ways that empirical studies or observations might be able to further refine the answers.
   
4. Organize and coordinate a program of model evaluation through systematic comparison with in-situ and assimilated global observations and to identify and alleviate model deficiencies.
   
5. In support of Goals 1-4, develop plans for a S-I modeling infrastructure that will (i) facilitate model interchange and joint modeling experiments, and (ii) ensure a suite of well documented, fully accessible models of the atmosphere, ocean, land and sea ice, including fully coupled climate models. Where additional resources or support is needed, provide plans to the SSC and the interagency CLIVAR group for implementation.