[MITgcm-support] Negative concentrations in pTracer

[Matthew Mazloff]

Hello

Making smoother initial conditions may also help

Matt


On Nov 28, 2014, at 3:13 AM, Roland Young <young at atm.ox.ac.uk> wrote:

> OK thanks (yes, typo, should have been 10^-8).
> 
> I'll change over to scheme 33 for the tracers (scheme 7 increases the size of the halo regions so slows it a bit, and the output looks similar anyway). Both those schemes still have an undershoot (same order of magnitude as scheme 77).
> 
> I have found a routine in the FIZHI package fizhi/fizhi_fillnegs.F which deals with negative tracer concentrations in what seems like a sensible way, so I have adapted this and I think this should be an acceptable solution.
> 
> Roland
> 
> 
> 
> 
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