[MITgcm-support] Sneaky NaNs

[Sergey Vinogradov]

Just a wild guess:
Are you sure the weeks after those 50 "NaN" weeks are not from previous, 
successful runs?
S.

Nicolas Wienders wrote:

>
> Friend mitgcmers,
>
> We are running here a coupled configuration of MITgcm (with
> cheapaml) using a 1/8º grid resolution, 25 layers, Kpp, etc...
> Just for a bit of backgroud.
>
> So far dt was set to 2400, and i have tried for the night to push it
> up to 2600. Doing weekly dumps, i got overnight about 82 successful
> weekly dumps, then about 50 weekly dumps of NaNs (which is not so 
> much a surprise considering that dt is probably to high), but.... then
> it comes back to physical and meaningful values.
>
>
> How can the model turn to a NaN status to come back to life afterwards?
> Just wondering.
>
> Thank you. Have a great week-end. Hot hot here.
> n
>
>
>
>
> --
>
>
> Nicolas Wienders                   (850) 644-1987 (office)
>
> Oceanography - OSB415                294-3542 (cell)
>
> Florida State University                    644-2581 (fax)
>
> Tallahassee, FL - 32306    wienders at ocean.fsu.edu 
> <mailto:wienders at ocean.fsu.edu>
>
>
>
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