97 citations · 375 across the 14 of their papers we have counts for
14 papers
Attractors and bifurcation diagrams in complex climate models
Maura Brunetti, Charline Ragon
The climate is a complex non-equilibrium dynamical system that relaxes toward a steady state under the continuous input of solar radiation and dissipative mechanisms. The steady st…
Robustness of competing climatic states
Charline Ragon, Valerio Lembo, Valerio Lucarini +3
The climate is a non-equilibrium system undergoing the continuous action of forcing and dissipation. Under the effect of a spatially inhomogeneous absorption of solar energy, all t…
Stabilization of unsteady nonlinear waves by phase space manipulation
Alexis Gomel, Amin Chabchoub, Maura Brunetti +3
We introduce a dynamic stabilization scheme universally applicable to unidirectional nonlinear coherent waves. By abruptly changing the waveguiding properties, the breathing of wav…
Separatrix crossing and symmetry breaking in NLSE-like systems due to forcing and damping
D. Eeltink, A. Armaroli, C. Luneau +3
We theoretically and experimentally examine the effect of forcing and damping on systems that can be described by the nonlinear Schrödinger equation (NLSE), by making use of the ph…
Stabilization of uni-directional water-wave trains over an uneven bottom
Andrea Armaroli, Alexis Gomel, Amin Chabchoub +2
We study the evolution of nonlinear surface gravity water-wave packets developing from modulational instability over an uneven bottom. A nonlinear Schrödinger equation (NLSE) with…
Viscous damping of gravity-capillary waves: Dispersion relations and nonlinear corrections
Andrea Armaroli, Debbie Eeltink, Maura Brunetti +1
We discuss the impact of viscosity on nonlinear propagation of surface waves at the interface of air and a fluid of large depth. After a survey of the available approximations of t…
Nonlinear stage of Benjamin-Feir instability in forced/damped deep water waves
Andrea Armaroli, Debbie Eeltink, Maura Brunetti +1
We study a three-wave truncation of a recently proposed damped/forced high-order nonlinear Schrödinger equation for deep-water gravity waves under the effect of wind and viscosity.…
How to reduce long-term drift in present-day and deep-time simulations?
Maura Brunetti, Christian Vérard
Climate models are often affected by long-term drift that is revealed by the evolution of global variables such as the ocean temperature or the surface air temperature. This spurio…
Recurrence in the high-order nonlinear Schrödinger equation: a low dimensional analysis
Andrea Armaroli, Maura Brunetti, Jérôme Kasparian
We study a three-wave truncation of the high-order nonlinear Schrödinger equation for deepwater waves (HONLS, also named Dysthe equation). We validate our approach by comparing it…
Modulational instability in wind-forced waves
Maura Brunetti, Jérôme Kasparian
We consider the wind-forced nonlinear Schroedinger (NLS) equation obtained in the potential flow framework when the Miles growth rate is of the order of the wave steepness. In this…
Nonlinear fast growth of water waves under wind forcing
Maura Brunetti, Nadège Marchiando, Nicolas Berti +1
In the wind-driven wave regime, the Miles mechanism gives an estimate of the growth rate of the waves under the effect of wind. We consider the case where this growth rate, normali…
Stellar diffusion in barred spiral galaxies
Maura Brunetti, Cristina Chiappini, Daniel Pfenniger
We characterize empirically the radial diffusion of stars in the plane of a typical barred disk galaxy by calculating the local spatial diffusion coefficient and diffusion time-sca…
Diffusion in barred-spiral galaxies
Maura Brunetti, Cristina Chiappini, Daniel Pfenniger
We characterize the radial migration of stars in the disk plane by calculating the diffusion coefficient and the diffusion time-scale for a bulge-disk N-body self-consistent system…
Modeling proper motions beyond the Galactic bulge
Maura Brunetti, Daniel Pfenniger
We analyse the radial and tangential velocity fields in the Galaxy as seen from the Sun by using as a first approximation a simple axisymmetric model, which we then compare with th…