Re: Eddy Height Computations

[Billy Kessler <kessler@xxxxxxxxxxxxx>]

It should be:

eddy_ht = hgt - hgt[y=ys:yn@ave]

where ys and yn are the limits over which to take
the average. This specification is needed, even if
the whole region is intended, because otherwise a
statement such as:

plot eddy_ht[y=value]

would evaluate the entire expression (including the
averaging operation) at y=value. By including the
limits explicitly in the definition this is avoided.

Billy K

On Fri, 29 Mar 2002, Bruce W. Ford wrote:

> I'm attacking a new computation and I wish I was more
> familiar with the finer points of Ferret scripting.
> In time...in time.  Thank goodness for this forum!
>
> I want to calculate an eddy height value, that is
> subracting a latitude average from the value at each
> grid point.
>
> I'm thinking the computation code will look like:
> let eddy_hgt = hgt - hgt[h=@AVE]
>
> Has anyone performed these calculations?  Would this
> fit the bill?
>
> I appreciate any comments!  Thanks!
>
> Bruce
>
>
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