4 papers · 1 filter
Variability in a Model of Divergent and Convergent Coupled Ice Streams: Synchronisation, Transients and Chaos
Joshua Grimstead, Peter Ashwin, Tanja I. Schindler
Fast-flowing glaciers, known as ice streams, control the majority of ice sheet mass loss due to thermomechanical coupling at their base, which can induce basal lubrication and high…
Chaotic variability in a model of coupled ice streams
Kolja Kypke, Peter Ashwin, Peter Ditlevsen
Regions of fast-flowing ice in ice sheets, known as ice streams, have been theorized to be able to exhibit build-up/surge oscillatory variability due to thermomechanical coupling a…
The effect of timescale separation on the tipping window for chaotically forced systems
Raphael Römer, Peter Ashwin
Tipping behavior can occur when an equilibrium of a dynamical system loses stability in response to a slowly varying parameter crossing a bifurcation threshold, or where noise driv…
Contrasting chaotic and stochastic forcing: tipping windows and attractor crises
Peter Ashwin, Julian Newman, Raphael Römer
Nonlinear dynamical systems subjected to a combination of noise and time-varying forcing can exhibit sudden changes, critical transitions or tipping points where large or rapid dyn…