Should I standardize the time series before using "specx_anal" ?

Hi, all

    I found that the spectrum plot will be changed greatly if I standardize the time series before using "specx_anal".
I am a little puzzled on it. Is it necessary to do a standardization at first when we analyze the spectrum ?
( I analyze the 102-yrs precipitation datas , all data , script and plots have been uploaded to ftp://cgd.ucar.edu/incoming/ )
Thanks!

Good Luck

Lin

LEO_ARIES
2007-02-08

_______________________________________________
ncl-talk mailing list
ncl-talk_at_ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Thu Feb 08 2007 - 08:30:05 MST