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On Janssen’s Model for Surface Wave Generation by a Gusty Wind
Publisher: American Meteorological Society
Abstract: Janssen?s model for the effect of gustiness on the mean energy transfer from a turbulent wind to a surface wave is simplified through a Gauss?Hermite approximation to his probability integral. Two examples are considered.
On Damped Resonant Interactions
Publisher: American Meteorological Society
Abstract: It is shown that the evolution equations for a triad of weakly damped, resonantly interacting waves are isomorphic to the corresponding equations for undamped waves (and therefore may be integrated in term of elliptic ...
Resonantly Forced Rossby Waves
Publisher: American Meteorological Society
Abstract: A shallow, rotating layer of fluid that supports Rossby waves is subjected to turbulent friction through an Ekman layer at the bottom and is driven by a wave that exerts a shear stress on the upper boundary and for which ...
Baroclinic Instability of the Zonal Wind: Part III
Publisher: American Meteorological Society
Abstract: A zonal-wind configuration in which wind speed is proportional to pressure-altitude and stability is proportional to the square of the density is posed. A solution to the eigenvalue problem governing the stability of this ...
Baroclinic Instability of the Zonal Wind: Part II
Publisher: American Meteorological Society
Abstract: An approximate solution of the eigenvalue problem governing the stability of the zonal wind with respect to small disturbances of long wavelength is developed for profiles with strong, positive-definite vertical shear. It ...
Gravity Wave Reflection at a Discontinuity in Bottom Slope
Publisher: American Meteorological Society
Abstract: The one-dimensional reflection of a gravity wave at a discontinuity in bottom slope is calculated from a Green?Liouville (WKB) solution of the mild-slope equation.
On Tidal Damping in Laplace's Global Ocean
Publisher: American Meteorological Society
Abstract: Laplace's tidal equations are augmented by dissipation in a bottom boundary layer that is intermediate in character between those of Ekman and Stokes. Laplace's tidal equation for a global ocean remains second-order and ...
On Solitary Rossby Waves
Publisher: American Meteorological Society
Abstract: A variational principle and an associated integral invariant are constructed for two-dimensional (non-divergent) waves of permanent form in a Rossby ?-plane. A solitary-wave solution is obtained, and it is shown that the ...
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