Terms of reference

  • Advise the JSC and CAS on progress in atmospheric modelling.
  • Review the development of atmospheric models for use in weather prediction and climate studies on all scales, including the diagnosis of shortcomings.
  • Propose numerical experiments aiming to refine numerical techniques and the formulation of atmospheric physics processes, boundary layer processes and land surface processes in models.
  • Design and promote coordinated experiments for:
    • validating model results against observed atmospheric properties and variations;
    • exploring the intrinsic and forced variability and predictability of the general circulation of the atmosphere on short to extended ranges;
    • assessing the intrinsic and forced variability of the atmosphere on climate time‐
  • Promote the development of data assimilation methods for application to numerical weather and climate predictions, and for the estimation of derived climatological quantities.
  • Promote the development of new methods for numerical weather prediction and climate simulation.
  • Maintain scientific liaison with other WCRP and CAS groups as appropriate.
  • Promote the timely exchange of information, data and new knowledge on atmospheric modelling through publications, workshops and meetings.