[ncl-talk] confirm the first day greater than 0 degree

[Dennis Shea]

There is no existing NCL function for what you want. Still, *dim_minind*
<http://www.ncl.ucar.edu/Document/Functions/Contributed/dim_minind.shtml>
can be used if the
data array is pretreated [tricked].

See attached.

%> ncl tst.1st_occurence.ncl

On Thu, Dec 5, 2019 at 10:15 PM WIND via ncl-talk <ncl-talk at ucar.edu> wrote:

> Dear all,
>
> Thanks for reading, I'm dealing with the three-dimensional grid
> temperature data (ordered by time, lat, lon). I want to confirm the first
> day (position in the time dimension) in each lat/lon that the temperature
> is greater than 0. It's hard for me to think about how to write the "if"
> statement. Are there some relevant statistics function in NCL? It will be
> so nice that anyone would provide some advice.
> Any help would be appreciated!
>
> Sincerely,
> Wind
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