Fwd: interpolation gridded data to rcm

From: Debasish <debasish_at_nyahnyahspammersnyahnyah>
Date: Thu Feb 03 2011 - 12:02:26 MST

Dear NCL Users

I guess I am getting missing outputs because of the assumption that xin is gridded RCM data because neither lon proceeds left to right nor lat proceeds from south-to-north.

I have tried to use "natgrid" assuming xi (mxn) with lat(mxn) and lon(mxn) but the program is hang. I guess it does not work too.

Therefore, I would like to know how do I interpolate this data (high resolution data) to RCM grid with lat2d(172,180), lon2d(172,180). Meanwhile I counted that there are nearly 450 RCM grid over the input domain; so I would like to interpolate the input data to this 450 CRCM grid.
I am sending the part (total file has 17536 lat, lon and xin) of lat and lon of the input data for your convenience .

Any help in this regard will be appreciated

Thanks

Debasish

Begin forwarded message:

> From: Debasish <debasish@sca.uqam.ca>
> Date: 1 février 2011 16:42:48 HNE
> To: Ncl Talk <ncl-talk@ucar.edu>
> Subject: interpolation gridded data to rcm
>
> Dear NCL users,
>
> I have gridded data xin (m,n) with lat(m,n) and lon(m,n) for smaller domain. I would like to interpolate the data to RCM grid lat2d(a,b) and lon2d(a,b) for bigger domian.
> I follow the followings steps:
>
> 1. I assume "xin" as RCM gridded data
> 2. convert lat2d and lon2d to 1d array lat1d and lon1d
> 3. Use "rcm2points" function
> xout1d = rcm2points(lat,lon,xin,lat1d,lon1d,0)
> 4. then convert xout1d to 2d
> but all the values of xout1d are missing
>
> Any suggestion to fix these problem will be appreciated
>
> Thanks
>
> Debasish
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Received on Thu Feb 3 12:03:53 2011

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