[ncl-talk] Spline interpolation

[Dennis Shea]

In my opinion, spline interpolation would not be good for "interpolating
the coarse resolution 2-D rectilinear grids into the finer resolution". It
would be possible to get some 'over/under' estimates at 'between' grid
points.

I suggest simple bilinear interpolation:

http://www.ncl.ucar.edu/Document/Functions/Contributed/linint2_Wrap.shtml

As I'm sure you know, a coarse grid interpolated to a finer resolution does
not provide any extra information.

Good Luck


On Mon, Oct 17, 2016 at 10:15 AM, Lisi Pei <lisipei at msu.edu> wrote:

> Hi,
>
> I am thinking of interpolating the coarse resolution 2-D rectilinear grids
> into the finer resolution with spline interpolation method. Among so many
> NCL functions in the interpolations: http://www.ncl.ucar.edu/Document/
> Functions/interp.shtml, I am not sure which one/combination will suite my
> purpose best. Do you have any recommendations? Thank you for any possible
> help in advance.
>
> Best,
> Lisi
>
>
>
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