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Re: interpolation/regridding question



Hi Emilio, and Brent,
That depends on what one wants of course.   There is also @AVE which
does a weighted regridding.

Emilio Mayorga wrote:

> Brent,
>
> Use @ASN instead of @LIN. It replaces the elements of the old axis with
> those of the new one, following the order you've specified. You might want
> to include an explicit time origin in the axis my_time, with the
> qualifier /T0=
>
> I just used @ASN yesterday for the first time and it worked like a charm.
>
> Emilio
>
> On Fri, 11 May 2001, Brent A McDaniel wrote:
>
> >
> > Hi Ferreters,
> >
> > I have a series of 17 3-d grids contained in 1 file with the 4th dimension
> > being time running from 1 - 17 days.  I want to regrid the data so that
> > the time axis isn't {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17} but
> > {1.00, 3.13, 5.25,
> > 7.38,9.50,11.63,13.75,15.88,18.00,18.38,18.75,19.13,19.50,19.88,20.25,20.63,21.0}.
> > The variable in the files is called ao.
> >
> > From inside ferret I type show transformations and saw @LIN        lin. interp.
> > which sounds promising but when I checked the manual I didn't find it.
> > And searching the mail archives for @lin didn't work.
> >
> > Is it as simple as something like:
> >
> > define axis/units=days my_time = { all those numbers}
> > let aonew=ao[gt=my_time@LIN]
> >
> > ??
> >
> >
> > Thanks.
> >
> > - Brent
> > --
> > Brent A. McDaniel
> >
> > Dept of Earth and Atmospheric Sciences
> > Georgia Institute of Technology
> > Atlanta, Ga.  USA
> >
> >
> >

--
Ansley Manke  Pacific Marine Environmental Laboratory  Seattle WA  (206)526-6246




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