[MITgcm-support] Re: MITgcm-support Digest, Vol 63, Issue 6

Jean-Michel Campin jmc at ocean.mit.edu
Thu Sep 4 14:14:38 EDT 2008


Tom,

You are right, only the average pe_b is written, and
it's really divided by the total volume (and not by just the
area as I thought).
Thanks,
Jean-Michel

On Thu, Sep 04, 2008 at 01:46:37PM -0400, Thomas Haine wrote:
> Hi Jean-Michel, 
> 
> Thanks for your reply, but I don't follow why pe_b is in m^3/s^2. It
> looks like the formula in mon_ke.F is (essentially):
> 
> Sum [0.5 * gravity * eta^2 * area] / Total volume
> 
> which is m^2/s^2, or J/kg.
> 
> What am I missing here?
> 
> Thanks, Tom.
> 
> > email message attachment
> > > -------- Forwarded Message --------
> > > From: Jean-Michel Campin <jmc at ocean.mit.edu>
> > > Reply-To: mitgcm-support at mitgcm.org
> > > To: mitgcm-support at mitgcm.org
> > > Subject: Re: [MITgcm-support] Monitor units
> > > Date: Thu, 4 Sep 2008 10:00:44 -0400
> > > 
> > > Hi Thomas,
> > > 
> > > Those units are not well documented:
> > > >From the monitor, ke is in m^2/s^2 , 
> > > and since pe_b is for the external mode only, 
> > > it's similar but vertically integrated, so that the units are
> > > m^3/s^2 
> > > (assuming you are not using pressure coordinates).
> > > Cheers,
> > > Jean-Michel
> > > 
> > > On Wed, Sep 03, 2008 at 05:27:25PM -0400, Thomas Haine wrote:
> > > > Hi, Can anyone tell me what units pe_b_mean and the ke diagnostics
> > > in
> > > > pkg/monitor are reported in?  I presume J/kg?
> > > > Thanks, Tom.
> > > > -- 
> > > > --------------------------------------------
> > > >  Thomas W. N. Haine, Professor,
> > > >  Department of Earth & Planetary Sciences,
> > > >  329 Olin Hall, The Johns Hopkins University,
> > > >  Baltimore, MD 21218, USA.
> > > >  Tel : 410 516 7048,   Fax : 410 516 7933
> > > >  Thomas.Haine at jhu.edu
> > > >  http://www.jhu.edu/~eps/faculty/haine
> > > > --------------------------------------------
> > > > _______________________________________________
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> > > > MITgcm-support at mitgcm.org
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> > > 
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