[ncl-talk] Filter dates

[Dennis Shea]

What does printVarSummary(u_region) show?

Likely, two dimensions:    u_region(time,lat)

The following is not correct:

   u_aave=*dim_avg_Wrap*
<http://www.ncl.ucar.edu/Document/Functions/Contributed/dim_avg_n_Wrap.shtml>
(u_region,1.0,1.0,0)

Did you look at the documentation?  There are two arguments ... not four.


function dim_avg_n_Wrap (
		x        : numeric,
		dims [*] : integer
	)

Maybe:
    u_aave=*dim_avg_Wrap*
<http://www.ncl.ucar.edu/Document/Functions/Contributed/dim_avg_n_Wrap.shtml>(u_region,0)


On Tue, Sep 1, 2020 at 11:06 AM Lyndz via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Dear NCL-experts,
>
> Reforwarding my previous email.
>
> *[Description]*
> I would like to filter dates where the U component of winds is above 3 m/s
> between 12.5N-20N and 120E.
>
> *[What I have so far]*
> Attached is the sample script.
>
> *[Problem]*
>
> My approach is to subset first the uwnd data between the said
> latitudes and longitude, but I can't find examples on how to extract the
> uwnd data at a specific longitude:
>
>   latS = 12.5
>
>   latN = 20.0
>
>   lonL = 120.0
>
>   u_region = u(:,{latS:latN},lonL)
>
>
>
> This part does not work.
>
> Then, apply the dim_avg_Wrap to get the average along the latitudes.
>
> I will then filter the dates with the average uwnd exceeding 3 m/s.
>
>
>
> I would like to ask for help on how to do this correctly in NCL or maybe
> there is a better approach to do this.
>
>
>
> I'll appreciate any help.
>
>
> Sincerely,
>
> Lyndz
>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at mailman.ucar.edu
> List instructions, subscriber options, unsubscribe:
> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20200901/c114cadb/attachment.html>