>
>On Thu, 27 Oct 2005, Xuguang Wang wrote:
>
>> I wonder whether there is a function/procedure in NCL that functions as a
>> 10-day high pass filter?
>
> Check out the NCL home page, specifically:
>
>http://www.ncl.ucar.edu/Document/Functions/Built-in/filwgts_lancos.shtml
>..................
>
As Saji indicates the above can be used to develop
the weigts of the desired filter. This depends on how the
data are sampled.
Example 3 of
http://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_runave.shtml
shows how you might use the weights returned bu filwgts_lancos
Basically,
wts = filwgts_lancos (...)
yhigh = wgt_runave(y, wts, opt)
good luck
_______________________________________________
ncl-talk mailing list
ncl-talk@ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
This archive was generated by hypermail 2b29 : Thu Oct 27 2005 - 18:24:21 MDT