[ncl-talk] calculate area of polygon box

[Dennis Shea]

Did you look at any of the functions?

Click "Functions" ; Click "Alphabetical Listing"; Search 'area'

Keep going till you find something: Like .......

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

On Mon, Feb 5, 2018 at 5:32 AM, Kunal Bali <kunal.bali9 at gmail.com> wrote:

> Dear NCL users,
>
> I have coordinates such as
> lonv = (/77.98,77.96,79.01,80.02,80.98,81.57,81.98,83.01,84.00,83.
> 99,83.01,83.01,80.98,81.00,80.01,79.64,79.63,79.01,77.98/)
>
>   latv = (/31.00,29.70,29.15,28.82,28.43,28.01,27.98,27.47,27.38,28.
> 64,28.99,29.40,29.56,29.99,30.05,30.01,30.61,30.64,31.00/)
>
>
> from that, I am able to plot the polygon line e.g.
>
>
>
>
>
> So, could anyone please let me know how to calculate the area (in km) of
> this polygon box?
>
>
> thank you
> ---
> Kunal Bali
>
>
>
>
>
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