Re: Nearest land grid cell

Christian,

We don't have an automatic way to do this. If you have a land mask variable on your file, then you might be able to use this in conjunction with the ind_xxxx function.

If you can describe your problem in more detail, like what you mean by "certain sites", then I might have a different (better?) solution to provide.

Meanwhile, you might want to look at the "gc_inout" function to see if this is appropriate for your purpose:

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

You can see a graphical example at

http://www.ncl.ucar.edu/Applications/mask.shtml#ex9

(Example mask_9.ncl).

--Mary

On Oct 12, 2011, at 12:13 PM, Christian Oehler wrote:

> Hi,
>
> I want to get data from certain sites in a global grid. Therefore I used
> the function "ind_nearest_coord" to get those sites in my T42 grid. But
> it happens that some of the nearest coordinates lie in the ocean, when
> the site is near the coast.
> Is there an easy way to get the nearest grid cell which lies on the land?
>
> Thanks,
> Christian
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Received on Wed Oct 12 13:29:34 2011