Results from TOGA-COARE and other studies have shown that convection associated with the intraseasonal oscillation can affect the upper layers of the ocean through changes in the salinity, mixed layer depth and SST. However the ways in which theses changes in SST may feedback on the convection associated with the intraseasonal oscillation are not well understood. A better representation of the intraseasonal oscillation may lead to improvement in seasonal forecasting and the prediction of the onset in EL Nino. Results from integrations of an aqua-planet GCM will be presented to demonstrate the sensitivity of intraseasonal variability in convection to SST perturbations. The implications for modelling of the intraseasonal oscillation will be discussed.
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