[ncl-talk] How to get moisture flux along a boundary

[Lyndz]

Dear NCL-experts,

I have been using the last example here (
https://www.ncl.ucar.edu/Applications/wind.shtml) for computing the
moisture flux convergence.

I would like to ask how can I get the flux along a boundary of an arbitrary
box?
For example, between 110-130E, 10-15N.

Here's a screenshot of the equations. I want to calculate *N*, as indicated
below (like a line integral ?).


[image: Screenshot 2021-07-29 111158.png]


How can I implement this in NCL? I'll appreciate any help you can provide.

Sincerely,
Lyndz
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20210729/db747bf2/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot 2021-07-29 111158.png
Type: image/png
Size: 44108 bytes
Desc: not available
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20210729/db747bf2/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot 2021-07-29 111158.png
Type: image/png
Size: 44108 bytes
Desc: not available
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20210729/db747bf2/attachment-0001.png>