>if i want to do the wavenumber-frequency spectral analysis
>and draw the figures like as attached
>How should i do in using NCL function code
There is no space-time power spectra function
built-in to NCL.
Several people have invoked fortran subroutines
to do this. A rather elaborate and complicated example is at:
http://www.cgd.ucar.edu/cms/diagnostics/variab.html
Example plots of the webpages created by the
variability diagnostics package are at:
http://www.cgd.ucar.edu/cms/mstevens/cam3.x/cam3X/VDIAG_eul64x128_d50amip/hourly
/hourly.html
--------
The next release of NCL *may* have a 2D FFT function.
I am attaching a sample NCL script that invokes a fortran
2d-fft routine. This was written by a person who is no
longer at NCAR. Hence, there is no support for this.
Perhaps you can use the script as a basis for your work.
Good luck
Dennis Shea
_______________________________________________
ncl-talk mailing list
ncl-talk@ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
This archive was generated by hypermail 2b29 : Tue Jul 12 2005 - 14:14:16 MDT