[ncl-talk] extracting Wrf Varibales and Times

[afwande juliet]

Dear NCL users
I have many files from wrf output like this etc..

wrfout_d01_1982-02-01_00:00:00
wrfout_d01_1982-06-06_00:00:00
wrfout_d01_1982-10-09_00:00:00
wrfout_d01_1997-02-01_00:00:00
wrfout_d01_1997-03-03_03:00:00
wrfout_d01_1997-06-04_03:00:00
wrfout_d01_1997-07-04_03:00:00
wrfout_d01_1997-07-29_03:00:00
wrfout_d01_1997-09-29_15:00:00

I want to extract only 6variables for MAM and OND seasons for all the
files so that whatever files I will finally  have will contain only
6variables for times march-May and October -Dec

Is there a way I can do this in NCL, I am trying to check the NCL
documentations script at
http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Examples/BASIC_SFC/wrf_Surface_multi_input_files.htm
but can get way out
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