Re: how to extract a point value from nc file?

It depends on your file and the data on it.

For rectilinear grids. if variable FO is 2D, 3D, 4D

    LAT = 30.0
    LON = 120.0

    f = addfile("...","r")
    x = f->FOO({LAT},{LON})
or
    x = f->FOO(:,{LAT},{LON})
or
    x = f->FOO(:,:,{LAT},{LON})

print(x

For curvilinear ... it depends on your grid structure.

=======

PLEASE read about "coordinate variables"

http://www.ncl.ucar.edu/Document/Manuals/

See the mini-Language manual or the reference manual

On 10/12/11 1:30 PM, dyjbean wrote:
>
>
>
> hi,
> how can i extract a point value from a nc file which specified latitude
> and longitude using ncl?
> anybody can show me which function can achieve this purpose .
> thanks
> ------------------------------------------------------------------------
> dyjbean
>
>
>
>
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Received on Wed Oct 12 13:40:13 2011