Our aim is to give estimates for seasonal, interannual and decadal variation in regional climate under global warming.
Longer integrations are preferred.
There is, however, a limit for how long such runs should be made with prescribed ocean forcing. A realistic limit for our experiments might be 5 years, even though 10 years should be made in order to obtain a reasonable spread in the simulated statistics. The ORCM will have to be run for several decades. The inter-decadal variations cannot be estimated with our approach. In our project, time slices representing future climate might be picked on the basis of the NAO index, which represent periods with opposite modes in the North-Atlantic atmospheric oscilation.