[MITgcm-support] noise in high resolution run
baylor at MIT.EDU
Wed Apr 5 12:19:53 EDT 2006
You might try reversing the no_slip_sides to .false. All I meant
to say was to switch it and see what happens...
On Apr 5, 2006, at 12:12 PM, Nicolas Wienders wrote:
> On Apr 5, 2006, at 10:39 AM, Baylor Fox-Kemper wrote:
>> Hi Nicolas,
>> Things to try:
>> 1) You are using no_slip_sides=.false., it seems from your
>> velocity fields. Might be interesting to try .true. This will
>> change the solutions dramatically, but if it gets rid of the noise
>> then we know where to look.
>> 2) Try usejamartwetpoints=.true. This may help your w field
>> near walls...
>> 3) You might try different advection schemes for tracers, too.
>> There have been some issues of 'digging' near boundaries with some
>> of the schemes. I personally like tempadvscheme=33 and
>> saltadvscheme=33. This may make diagnosis a bit more difficult
>> but will reduce certain kinds of 'noise'.
>> Hope that helps,
> Hello Baylor, Thanks a lot for your help.
> I was already using no_slip_sides=.true.
> but i will try your 2) and 3) right now.
> Thanks a lot again.
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