5 papers
Constructing efficient score functions for rare event simulation in high-dimensional ocean-climate models
Lucas Esclapez, Valérian Jacques-Dumas, Reyk Börner +2
Calculating transition probabilities between different states of multistable climate tipping systems is computationally challenging in high-dimensional models. Targeted algorithms,…
Quantification of the cascading tipping probability from the AMOC to the Amazon rainforest
Valérian Jacques-Dumas, Henk A. Dijkstra
The Amazon rainforest and the AMOC are considered to be tipping elements: they are important components of the Earth system, but may collapse under climate change. Moreover, an AMO…
Resilience of the Atlantic Meridional Overturning Circulation
Valérian Jacques-Dumas, Henk A. Dijkstra, Christian Kuehn
We address the issue of resilience of the Atlantic Meridional Overturning Circulation (AMOC) given the many indications that this dynamical system is in a multi-stable regime. A no…
The Role of Sea-ice Processes on the Probability of AMOC Transitions
René M. van Westen, Valérian Jacques-Dumas, Amber A. Boot +1
Recent simulations performed with the Community Earth System Model (CESM) have suggested a crucial role of sea-ice processes in AMOC hysteresis behaviour under varying surface fres…
Estimation of AMOC transition probabilities using a machine learning based rare-event algorithm
Valérian Jacques-Dumas, René M. van Westen, Henk A. Dijkstra
The Atlantic Meridional Overturning Circulation (AMOC) is an important component of the global climate, known to be a tipping element, as it could collapse under global warming. Th…