Physics
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3111308x&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 11, CiteID L11308
Physics
Oceanography: General: Continental Shelf Processes, Oceanography: General: Numerical Modeling, Oceanography: Physical: Fronts And Jets
Scientific paper
A non-linear numerical model with wind forcing at a frequency ω and the inertial frequency f is used to examine the processes giving rise to energy at the (ω + f) and |ω - f| frequencies in a surface frontal region. Calculations show that vorticity associated with shear in the along frontal jet leads to regions of internal wave propagation (wave frequency > local effective inertial) or trapping. In regions of propagation the non-linear term involving vertical velocity at frequency ω and vertical shear of lateral velocity at f is the main source of interaction. In trapped regions horizontal current gradients are the main source of interaction. These calculations in part explain the variability found in internal wave energy spectra.
Davies Morley A.
Xing Jiuxing
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