Sentences with phrase «simulated decadal climate»

Not exact matches

Decadal forecasting, which began in 2007, uses the same climate models that are normally run to simulate changes across many decades, but only goes up to one decade out.

The second study addresses this issue by using a suite of decadal prediction experiments performed with a climate model capable of simulating multi-year La Niña events.

Results from our previous study indicated that the magnitude of unforced variability simulated by climate models may be underestimated on decadal and longer timescales and our new estimate of unforced variability largely supports this conclusion.

However, this relationship (which, contrary to the claim of MFC09, is simulated by global climate models, e.g. Santer et al. [2001]-RRB- can not explain temperature trends on decadal and longer time scales.»

Sylvain, one of the main challenges of verifying climate models on a time scale of 1 - 2 decades is that natural forcing (solar and volcanic) is unknown plus the decadal ocean cycles are not deterministic and will not be simulated in a way that matches observations unless a very large ensemble is used.

Modeling of the recent decadal climate record would require careful accounting for all of the radiative forcings, and would also require accurate modeling of ocean dynamics to accurately simulate the climate system's response time.

«From my perspective it is not a little bit alarming that the current generation of climate models can not simulate such fundamental phenomena as the Pacific Decadal Oscillation.

What was done, was to take a large number of models that could not reasonably simulate known patterns of natural behaviour (such as ENSO, the Pacific Decadal Oscillation, the Atlantic Multidecadal Oscillation), claim that such models nonetheless accurately depicted natural internal climate variability, and use the fact that these models could not replicate the warming episode from the mid seventies through the mid nineties, to argue that forcing was necessary and that the forcing must have been due to man.

Present - day ocean models do have some rudimentary capability to model El Nino - like variability, but they are not yet able to reliably simulate decadal - type variability, even though 1000 - year climate runs exhibit variability over a broad range of time scales.