[ncl-talk] Question regarding wavenumber-frequency spectrum

[Dr. Suman Maity]

 Hi all
I have couple of queries regarding wavenumber-freqency plots using "
*mjo_wavenum_freq_season*" which are mentioned below:
1. I saw the function calculates wavenumber and frequency. As per my
knowledge, positive frequency correspnds to easward propogating waves while
negative frequency associated with westward waves. But what about the
wavenumber? I mean what the negative wavenumber physically mean? will you
please comment?
2. Are both of these functions "*mjo_wavenum_freq_season*" and "
*mjo_wavenum_freq_season_plot*" only applicable for zonal waves? I am
interested in the meridional waves. I mean I need the wavenumber-freqency
spectra in meriodional direction. How to implement that?
Any sort of suggestion will be highly appreciated.
Thanking you,

Best
Suman
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Dr. Suman Maity
Research Associate
School of Atmospheric Science
Sun Yat-sen University, Zhuhai campus,Tangjiawan Town
Zhuhai, Guangdong, Postcode-519082,China.
Phone:+86-13543861045 (China), +91-9732636778 (India)
skype: reach2suman
https://www.researchgate.net/profile/Suman_Maity
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