[MITgcm-support] Tracer in a Rotating tank

[Martin Losch]

Joe,

the output that you get with dumpFreq > 0 is not very well documented. You can trace these variables by looking at write_state.F. This is what I got:
PNH: non-hydrostatic potential (variable name phi_nh and from NH_VARS.h):
C     phi_nh    :: Non-hydrostatic potential (=NH-Pressure/rhoConst)
PHL: "phiHydLow", i.e. the geopotential anomaly at the bottom of the domain (and from DYNVARS.h):
C     phiHydLow    :: Phi-Hydrostatic at r-lower boundary
C                     (bottom in z-coordinates, top in p-coordinates)
units are also pressure/rhoConst

I recommend turning this output off (dumpFreq=0.) and use the diagnostics package instead (data.pkg, data.diagnostics)

passive tracers:
add a line
ptracers
to packages.conf, configure the package (you might want to copy and edit PTRACERS_SIZE.h)
rebuild (make makefile && make depend && make )

please have a look at other examples and the documentation to see who to specify intial conditions, etc. (<http://mitgcm.org/public/r2_manual/latest/online_documents/node238.html>)

Martin

On Feb 24, 2011, at 2:16 AM, Joseph Schoonover wrote:

> To all,
> I've been working for a little bit on the rotating tank verification model and I've noticed there are some output files with prefixes 'PNH' and 'PHL'. I couldn't seem to find any documentation on what these represent.
> Also, is there a way to turn on a passive tracer for this experiment?
> If anyone could shed some light on this, it would be appreciated.
> Thanks,
> Joe Schoonover
> 
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