Physics
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3215602f&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 15, CiteID L15602
Physics
5
Oceanography: Physical: Internal And Inertial Waves, Oceanography: Physical: Nearshore Processes, Oceanography: Physical: Surface Waves And Tides (1222), Oceanography: Physical: Upper Ocean And Mixed Layer Processes
Scientific paper
This paper studies two examples of internal wave band temperature fluctuation spectra from moored instruments on the central Mexican Pacific Shelf and the western shelf of the Japan/East Sea. It is observed that for band f $\ll$ ω $\ll$ N, where N is the buoyancy frequency and f is the inertial frequency, the spectral falloff rate with frequency ω tends to ω-3. These features of spectra are simulated by the model spectrum of nonlinear internal waves in the shallow sea. It is shown that nonlinear internal waves with frequencies f $\ll$ ω $\ll$ N are governed by the modified simple wave equation. This equation underlie of the model spectrum of nonlinear internal waves on the shelf. The model spectrum shows ω-3 falloff rate with frequency in contrast with model spectrum proposed with Garrett and Munk, which shows ω-2 falloff rate.
Filonov Anatoliy
Novotryasov Vadim
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