[ncl-talk] data interpolation problem

[Karin Meier-Fleischer]

Please, reply always to the ncl-talk.

As Dennis already mentioned there are a few other examples for 
regridding a curvilinear grid to latlon grid. See examples 30 and 32.

-Karin

Am 28.11.19 um 08:22 schrieb WIND:
> Thanks Karin,
> With your help to use the "function" ESMF_regrid, I had regrided my 
> data. (I only changed example's DstGridType to "0.45deg", DstLLCorner 
> to (/30.d,   120.d /) and DstURCorner to (/66.d, 156.d /) ) But I 
> found that the plot outcoming is quite different, the value at the 
> same point is unmatched. My former grid interval is about 0.44 degree, 
> I changed to regrid to 0.5 or other degree, they all failed all the 
> same. The output pic's link is here 
> https://pan.baidu.com/s/1ObFbK6lTDpzyyYgTpZp64w. Did that mean the 
> data is unsuitable to regrid in this way?
> Really looking forward to your advice.
> Sincerely,
> Yan
> ------------------ Original ------------------
> Message: 8
> Date: Wed, 27 Nov 2019 14:38:20 +0100
> From: Karin Meier-Fleischer <meier-fleischer at dkrz.de>
> To: ncl-talk at ucar.edu
> Subject: Re: [ncl-talk] data interpolation
> Message-ID: <517bd9c2-644b-412a-57eb-43fa715103d4 at dkrz.de>
> Content-Type: text/plain; charset="windows-1252"; Format="flowed"
> Hi Yan,
> if you have lat(y,x) and lon(y,x), which is a curvilinear grid, you can
> use ESMF to regrid it to a regular latlon grid.
> Have a look at ESMF example 7
> http://ncl.ucar.edu/Applications/Scripts/ESMF_regrid_7.ncl.
> -Karin
> Am 27.11.19 um 13:18 schrieb WIND via ncl-talk:
> > Dear all,
> > Thanks for reading, I'm dealing with a Two-dimensional rotated pole
> > grid data, the coordinate changing format is different at each grid
> > (for eg. the latitude variable has two dimensions). I want to
> > interpolate the data to Regular grid format (so the dimension of
> > latitude and longitude is one). I had tried the function "linint2",
> > but it didn't work out.?So I wonder are there any useful function to
> > solve this problem?
> > Any help would be appreciated!
> > Sincerely,
> > Yan
>

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