Re: Is there any way to interpolate station data to grided data?

On Fri, 25 May 2007, xiexin163_at_zju.edu.cn wrote:
> Hi,
> I have got some station data of temperature(including
> their lon and lat info)and want to plot the contour map
> of them. However, as expected, these data are not regular
> grided distributed so they can not be ploted
> as contour map. I have read station data section of appliation
> examples on the NCL web and know that NCL can use the triangular
> mesh capability to integpolate the data and then contour these
> station data correctly.
>
> That is I send NCL the station data and NCL contours them automatically.
> However, I wonder if there is a way that I interpolate the grided data
> from the station data and then save them in a temporary variable so I
> can do some manipulation to them. And at last I use the regular way to plot the
> contour map as we do to the common grided data.
> Thanks.
> Xie Xin
> _______________________________________________

To my knowledge, there is ne way to get the 'grid' used by
the triangular code.

There are several interpolation routines that can be used
to generate grids that can be manipulated:

http://www.ncl.ucar.edu/Document/Functions/Built-in/natgrid.shtml
http://www.ncl.ucar.edu/Document/Functions/Contributed/natgrid_Wrap.shtml

http://www.ncl.ucar.edu/Document/Functions/Built-in/idsfft.shtml

http://www.ncl.ucar.edu/Document/Functions/Built-in/cssgrid.shtml
http://www.ncl.ucar.edu/Document/Functions/Contributed/cssgrid_Wrap.shtml

Good luck
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Received on Fri May 25 2007 - 07:35:54 MDT