calculating pCFC ages

[Niki Gruber <gruber@xxxxxxxxxxxxxxxxxxxx>]

Hi all,

I hope somebody already tried to find a solution to my problem:

I am trying to compute pCFC ages from a 3-D field of partial pressures
of CFC (pCFC[x,y,z]) and a one dimensional field of atm. CFC history
(pCFC_a[t]). The pCFC age is determined by matching the oceanic pCFC with
the atmospheric history, i.e. in the single point case by applying
the @loc command to an embedded expression: 

pCFC_age[x=1,y=1,z=1] = 1990 - pCFC_a[t=@loc:`pCFC[x=1,y=1,z=1]`]

I now would like to compute this for all grid cells of my original
pCFC[x,y,z] field and obtain a fully 3-D pCFC_age field (pCFC_age[x,y,z]).
I tried several things (following the examples given in Ch3 Sec2.4.26. of
the documentation) but didn't find a solution yet.

Many thanks for your help in advance.

-- best regards, Niki


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Nicolas Gruber
AOS Program, Princeton University  
Sayre Hall, Forrestal Campus, P.O. Box CN710
Princeton, NJ 08544-0710
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