A model of radar imaging of ocean phenomena is proposed. This model is an extension of the background NRCS model [7] in the case of non-uniform medium. Radar scattering component takes into account Bragg and non-Bragg (specular reflections and impact of wave breaking) scattering mechanisms. Varying surface current, surface temperature and surfactants are the main sources of medium non-uniformit...

Recently, Suk, Barov, and Rosenzweig [Phys. Rev. Lett. 86, 1011 (2001)] proposed a scheme for trapping background electrons in a plasma wake field using a sudden downward transition in the background ion density, where the density transition length is small compared to the plasma skin depth. In the present paper we present a fluid dynamical description of this mechanism that is self-consistent ...

Two-dimensional (2D) electromagnetic scattering from a target above the sea with breaking water wave is studied by a multiregional iterative analytical-numerical method that combines the boundary integral method (BIM) and the Kirchhoff approximation (KA). Based on the “PiersonMoskowitz” (PM) sea surface and the LONGTANK breaking wave, a theoretical model of a target above the rough sea surface ...

In this report, generalized wave breaking equations are developed using three dimensional fully nonlinear extended Boussinesq equations to encompass rotational dynamics in wave breaking zone. The derivation for vorticity distributions are developed from Reynold based stress equations.

In the concept of full development, the sea wave spectrum is regarded as a nearly stationary solution of the wave transfer equation, where source and sink terms should be in balance with respect to both energy and momentum. Using a two-dimensional empirical sea wave spectral model at full development, this paper performs an assessment of the compatibility of the energy and momentum budgets of s...

[1] Existing laboratory studies suggest that surface wave breaking may exert a significant impact on the formation and evolution of oceanic surface boundary layer, which plays an important role in the ocean‐atmosphere coupled system. However, present climate models either neglect the effects of wave breaking or treat them implicitly through some crude parameterization. Here we use a one‐dimensi...

Understanding wave dissipation in the nearshore is approached through modeling of field observations obtained across a variety of beach profiles and under a wide range of wave conditions. Wave breaking data are obtained remotely from video recordings of the surf zone, and image processing techniques subsequently used to detect and quantify the position and time of wave breaking occurrences over...

[1] In this paper we study the energy dissipation due to current-limited wave breaking in monochromatic and random waves with the help of experimental tests. The opposing currents are strong enough for wave blocking to occur. A modified bore model is used to simulate the dissipation rate in the monochromatic waves, and an empirical bulk dissipation formula for wave breaking in random waves is p...

The three-dimensional nature of breaking Rossby waves in the polar wintertime stratosphere is studied using an idealized global primitive equation model. The model is initialized with a well-formed polar vortex, characterized by a latitudinal band of steep potential vorticity (PV) gradients. Planetary-scale Rossby waves are generated by varying the topography of the bottom boundary, correspondi...

This paper discusses Rossby wave breaking on the isentropic surfaces that intersect the subtropical tropopause, using winds and isentropic potential vorticity from high-resolution meteorological analysis. The focus is both on particular aspects of individual wave breaking events, as well as on more general aspects such as the spatial and temporal distribution of the mixing associated with these...