[ncl-talk] a question on the NCL function gradsf

[Dennis Shea]

If I understand you question correctly:   d(T)/dlon
--------
*https://www.ncl.ucar.edu/Applications/gradients.shtml
<https://www.ncl.ucar.edu/Applications/gradients.shtml>*

On Tue, Sep 3, 2024 at 5:07 PM Hui Ding via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Dear Sir or Madam,
> I note that the function gradsf can calculate gradients along longitude
> and latitude. I wonder about the sign of the gradient. For example, as to
> *igradsf*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/igradsf.shtml>
> (T_grad_lon, T_grad_lat, T),  does T_grad_lon equals d(T)/dlon or -1*d(T)/dlon?
> The same question for T_grad_lat.
> Thank you!
> Best regards,
> Hui Ding
>
>
>
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