[MITgcm-devel] MLD criterion

Jean-Michel Campin jmc at ocean.mit.edu
Wed Oct 10 12:44:55 EDT 2007


Hi Matt,

On Wed, Oct 10, 2007 at 12:32:13PM -0400, Matthew Mazloff wrote:
> Hi MITgcm devel,
> 
> I have been getting some grief about the kara et al. mixed layer  
> depth criteria....not that its a big deal because MLD can be  
> calculated offline...but apparently using dt=.8 criteria is not  
> robust...
> 
> two questions
> 1) Is there any desire to update this criteria?
> 2) is it very difficult (computationally expensive) to use a criteria  
> using more than just temp (i.e. density)?
> 

Currently, we have the choice between 2 methods, both uses density
(and not temperature), and the criteria is a run time parameter 
(i.e.: hMixCriteria) that can be changed. see S/R CALC_OCE_MXLAYER

> 
> there are 2 criteria i have been suggested (dong et al., 2007 and one  
> in preparation by Holte and Talley), let me know if anyone wants to  
> discuss further
> 
> -matt
> 
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