International audienceThe present paper is the second part of the work on linear and nonlinear stability of buoyancy-driven coastal currents. Part I was presented in the companion paper Gula & Zeitlin (2010). In this part we use a fully baroclinic two-layer model, with active lower layer. We revisit the linear stability problem for coastal currents and study the nonlinear evolution of the instabilities with the help of high-resolution DNS. We show how nonlinear saturation of the ageostrophic instabilities leads to reorganization of the mean flow and emergence of coherent vortices. We follow the same lines as in Part I and, first, perform a complete linear stability analysis of the baroclinic coastal currents for various depths and density r...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
Density-driven coastal currents, which are bounded by a coast and a surface density front are ubiqui...
For the atmosphere and oceans, which are forced mostly at low frequency, there is a time-scale separ...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
International audienceThe present paper is the second part of the work on linear and nonlinear stabi...
Density-driven coastal currents, which are bounded by a coast and a surface density front are ubiqui...
For the atmosphere and oceans, which are forced mostly at low frequency, there is a time-scale separ...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceWe undertake a detailed analysis of linear stability of geostrophically balanc...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...
International audienceThis paper addresses the instability of a two-layer coastal current in a quasi...