Roger Coppock wrote:
> [EMAIL PROTECTED] wrote:
> [ . . . ]
>
>>Not in the UK. The Hadley Centre Model is used both for weather
>>forecasting and for long range climate forecasts. They have a
>>different time step and the weather forecasting model has real data for
>>boundary conditions whereas for climate modelling it is more randomized.
>
>
> The exact same code is both a weather and a climate model?
> Is this true?
Near enough, in some cases. The weather version is generally (always)
run at much higher resolution, which may require some relatively minor
changes to things like parameter values.
> Models whose code I have looked at run frequency domain for
> climate simulation and time domain for weather forecasting.
I'm not sure quite what this means. Many models use a spectral
decomposition in which atmospheric dynamics are represented by modes in
a fourier expansion (or something along those lines - I've never got
involved in the fine details). This is a structural decision which is
independent of the integration time scale.
James
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