# Re: Vertical averaging using varying depths

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Wed Jan 23 2013 - 10:10:47 MST

The denominators should have a 2nd argumenty

dim_sum_n(dz) ==> dim_sum_n(dz , 0)
dim_sum_n(dz4) ==> dim_sum_n(dz4, 1) ;

On 01/23/2013 09:09 AM, Hyacinth Nnamchi wrote:
>
> Hyacinth
>
>
>
> > Date: Mon, 21 Jan 2013 11:26:15 -0700
> > From: shea@ucar.edu
> > To: hyacinth.1@hotmail.com
> > CC: ncl-talk@ucar.edu
> > Subject: Re: Vertical averaging using varying depths
> >
> >
> > There can not be function for everything.
> > You can always write your own.
> > Also, is the (x,y,z,t) fortran ordering???
> > Is 'z' one dimensional or 4 dimensional?
> >
> > let: dz=layer_thickness,
> > q=variable, fortran(x,y,z,t)=>ncl(t,z,y,x) ; 0,1,2,3
> >
> > z_zavg = dim_sum_n(q*dz, 1)/dim_sum_n(dz) ; q and dz (x,y,z,t)
> > --
> > dz4 = conform(dz,z,1)
> > z_zavg = dim_sum_n(q*dz4, 1)/dim_sum_n(dz4) ; q(x,y,z,t), dz(z)
> >
> > On 1/21/13 10:00 AM, Hyacinth Nnamchi wrote:
> > >
> & gt; > Hi users,
> > > I want to calculate the vertical average of a 4D (x,y,z,t) ocean
> variable. The problem is that the depths will have to vary: I want to
> use the thermocline depth (already calculated, x,y,t) as the base at
> each grid point, for the vertical vertical averaging. Is there a
> way/function to do this ncl?
> > > Thanks in advance.
> > > Hyacinth
> > >
> > >
> > >
> > >
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> > >
>
>
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Received on Wed Jan 23 10:11:05 2013

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