Re: linear interpolation

Hi Lei,

First just a bit of terminology: you are talking about the dimensions
of the variable not the attributes (which are metadata such as units
or a descriptive long name for the variable). There are a number of
functions you could use. Assuming you have coordinate values for the
input and output lat and lon dimensions, and you are using version
5.1.0 of NCL, I would recommend the function area_hi2lores_Wrap.
However, you could also use linint2_Wrap, or if the output grid is
Gaussian ("T42") the function
f2gsh_Wrap might be preferable.
  -dave

On Sep 22, 2009, at 1:05 PM, Lei Meng wrote:

> Hi,
> I have a nc file with attributes (Time, Lev, Lat, Lon) (e.g., 12,
> 60,180,360) and I would like to convert it to a nc file with
> attributes (Time, iLev,iLat,iLon) (e.g., 12, 28, 64,128) using
> linear interpolation. Which functions should I use to interpolate
> the three attributes (ilev, ilat, ilon)? Thanks,
> Lei
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Received on Wed Sep 23 2009 - 11:41:13 MDT