[ncl-talk] Find the nearest 9 points of a station

[Dennis Shea]

The index values of the closest single ?swath or grid? pt is given by:

http://www.ncl.ucar.edu/Document/Functions/Contributed/getind_latlon2d.shtml

====================

Attached is a slightly mangled function which I modified for your
purpose...
It is UNTESTED . Look at the code. Fix if necessary.



On Mon, May 11, 2015 at 1:05 PM, Yun Yue <yunyue at huskers.unl.edu> wrote:

>  Hi  NCL users,
>
> Say I have a station's lat and lon, I also have MODIS data. In order to
> find the nearest 9 pixels' index to this station, I could calculate
> distance between every pixel and the station, then find the nearest 9
> pixels.
>
> Is there any NCL function to find 9 pixels' index in a faster way?
>
> Thank you very much.
>
> Yun
>
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