Re: about interpolation

Hi Cheung

I am new to ncl myself but found the following worked well when I was extracting data from single locations from WRF 2D lat/lon data runs, (but I don't know whick data you are extracting from). This is the extent of my knowledge I'm afraid so if it is not WRF it probably doesn't help.

; Find the ij location for the point if interest

lat = 51.5

lon = -0.5

llres = True

llres@ReturnInt = True ; Return integer values

locij = wrf_user_ll_to_ij(a, lon, lat, llres)

locij = locij - 1 ; array pointers in NCL space

locX = locij(0)

locY = locij(1)

Kind regards

Dominique

________________________________
From: ncl-talk-bounces@ucar.edu [ncl-talk-bounces@ucar.edu] on behalf of Cheung [zuibeidemei@126.com]
Sent: 20 July 2012 14:33
To: ncl-talk@ucar.edu
Subject: about interpolation

Hi all:

       I have a 2d data, which is at nlat x nlon grid.

 And now I want to interpolate this data to some specified locations, each of which has a unique lat and lon.

 I'm not sure which function in ncl is the best for this case.

 Hope for the reply.

 Regards

 Cheung

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Received on Fri Jul 20 08:03:17 2012