Re: Masking Tibetan Plateau

I don't believe we have the Tibetan Plateau in our map database.

However, if you can find a shapefile that contains this outline, then
you can do something
like example 4 on the shapefiles page:

http://www.ncl.ucar.edu/Applications/shapefiles.shtml#ex4

Even if the lat/lon data is available as some other format, you can
still use this example
to see how the masking is done.

The key is to use gc_inout to determine whether your data is inside
or outside the area of
interest, and then set your data to missing inside or outside this
area, depending on what
you want to mask.

You may need to look at one of the other examples on this page in
order to properly
read the shapefile, depending on how it is formatted.

--Mary

On Apr 8, 2010, at 10:04 PM, A.R Ragi wrote:

> Dear NCL users..,
>
> I would like to know is there any way to mask the Tibetan Plateau
> while plotting 850hpa winds in NCL??
>
> --
> *********************************************************************
> Thanks,
> A.R.Ragi
> M.Tech Atmospheric science
> Department of Atmospheric science
> Cochin University of Science and Technology
> Email : ar.ragi@gmail.com
>
> **********************************************************************
> *
> "I want to know how God created this world.I am not interested in
> this or that phenomenon. I want to know, his thought, the rest are
> details" . ---Albert Einstein
>
> **********************************************************************
> *
>
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Received on Fri Apr 9 11:02:38 2010