[MITgcm-support] MITgcm-support Digest, Vol 133, Issue 31

[Neil Patel]

Thanks for the help. For seaice_no_slip =.FALSE. , I don't see it listed in the mitgcm manual, I assume it belongs in data.seaice?

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> 
> ------------------------------
> 
> Message: 2
> Date: Sun, 27 Jul 2014 23:25:48 +0200
> From: Christoph Voelker <christoph.voelker at awi.de>
> To: <mitgcm-support at mitgcm.org>
> Subject: Re: [MITgcm-support] low eta_min
> Message-ID: <53D56E5C.5050508 at awi.de>
> Content-Type: text/plain; charset="windows-1252"
> 
> Hi Neil,
> 
> from your description and the parameters in the data file this like an
> issue that I had before: in some instances, sea ice can accumulate near
> the coast (often in small inlets)so high that (with the nonlinear free
> surface enabled) you basically fill the uppermost model box with the
> submerged part of the ice.
> I had this when I forced my model with a very cold atmosphere (in a
> glacial set-up), but also for present-day forcing. It happens when you
> have local sea-ice formation, but the model is unable to transport it
> away, e.g. when you have a very narow strait and have set no-slip
> boundary conditions for ice. You can try setting seaice_no_slip =
> .false., or the CPP flag SEAICE_CAP_ICELOAD.
> And if all that does not help, try modifying your coast to get rid of a
> few small inlets..
> 
> Cheers, Christoph