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A solution targeting the root problem is in the workings. Until then I present a workaround to modify the rcf and waminfo restart timesteps such that the model always sees itself being close to the inital date. To move the model forward in time with regards to forcing and output dates we then change the inital date from leg to leg.
For easy calculations the following information is based on a simulations that is 1 year long with 1 hour timesteps.
RCF
The restart control file for OIFS contains the timestep and hour of the restart time.
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