[MITgcm-support] Ice not Moving when Resolution is Very High

[Martin Losch]

Hi Senja,

this is strange, and I’d like to have closer look at this. Do you think it is possible that you provide the full configuration to me, i.e. code and “input” directory with a case that works and a case that doesn’t.
I would be really concerned if the implicit Picard solver with LSR turns out to be so unpredictable.

Martin

> On 17. Jan 2020, at 22:25, Senja Walberg <senja.w at gmail.com> wrote:
> 
> Hello,
> 
> I figured out that my issue was somehow related to the LSOR solver. It's not clear to me why that's the case, but switching to EVP fixed the issues I was having.
> 
> Oddly, with the LSOR solver things behaved wildly differently depending on the initial configuration of ice-- with a relatively small, single chunk, no motion was observed, but when I added numerous other unconnected chunks to the domain it would move, even when delx was small.
> 
> Either way, my solution is simply not to use it, so I believe this problem can be done with.
> 
> Regards,
> Senja
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