[MITgcm-support] noise in high resolution run

Baylor Fox-Kemper baylor at MIT.EDU
Wed Apr 5 12:19:53 EDT 2006

Hi Nicholas,
   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,
>>     -Baylor
> 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.
> nicolas
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