Probabilistic forecasts of extreme heatwaves using convolutional neural networks in a regime of lack of data

G Miloshevich, B Cozian, P Abry, P Borgnat… - Physical Review …, 2023 - APS
Understanding extreme events and their probability is key for the study of climate change
impacts, risk assessment, adaptation, and the protection of living beings. Extreme …

[HTML][HTML] Transition paths of marine debris and the stability of the garbage patches

P Miron, FJ Beron-Vera, L Helfmann… - … Interdisciplinary Journal of …, 2021 - pubs.aip.org
We used transition path theory (TPT) to infer “reactive” pathways of floating marine debris
trajectories. The TPT analysis was applied on a pollution-aware time-homogeneous Markov …

[HTML][HTML] Learning forecasts of rare stratospheric transitions from short simulations

J Finkel, RJ Webber, EP Gerber… - Monthly Weather …, 2021 - journals.ametsoc.org
Rare events arising in nonlinear atmospheric dynamics remain hard to predict and attribute.
We address the problem of forecasting rare events in a prototypical example, sudden …

Coupling rare event algorithms with data-based learned committor functions using the analogue Markov chain

D Lucente, J Rolland, C Herbert… - Journal of Statistical …, 2022 - iopscience.iop.org
Rare events play a crucial role in many physics, chemistry, and biology phenomena, when
they change the structure of the system, for instance in the case of multistability, or when …

Revealing the statistics of extreme events hidden in short weather forecast data

J Finkel, EP Gerber, DS Abbot, J Weare - AGU Advances, 2023 - Wiley Online Library
Extreme weather events have significant consequences, dominating the impact of climate on
society. While high‐resolution weather models can forecast many types of extreme events …

Predicting rare events using neural networks and short-trajectory data

J Strahan, J Finkel, AR Dinner, J Weare - Journal of computational physics, 2023 - Elsevier
Estimating the likelihood, timing, and nature of events is a major goal of modeling stochastic
dynamical systems. When the event is rare in comparison with the timescales of simulation …

Committor functions for climate phenomena at the predictability margin: The example of El Niño–Southern Oscillation in the Jin and Timmermann model

D Lucente, C Herbert, F Bouchet - Journal of the Atmospheric …, 2022 - journals.ametsoc.org
Many atmosphere and climate phenomena lie in the gray zone between weather and
climate: they are not amenable to deterministic forecast, but they still depend on the initial …

Inexact iterative numerical linear algebra for neural network-based spectral estimation and rare-event prediction

J Strahan, SC Guo, C Lorpaiboon, AR Dinner… - The Journal of …, 2023 - pubs.aip.org
Understanding dynamics in complex systems is challenging because there are many
degrees of freedom, and those that are most important for describing events of interest are …

Statistical analysis of tipping pathways in agent-based models

L Helfmann, J Heitzig, P Koltai, J Kurths… - The European Physical …, 2021 - Springer
Agent-based models are a natural choice for modeling complex social systems. In such
models simple stochastic interaction rules for a large population of individuals on the …

[HTML][HTML] Dynamical geography and transition paths of Sargassum in the tropical Atlantic

FJ Beron-Vera, MJ Olascoaga, NF Putman, J Triñanes… - AIP advances, 2022 - pubs.aip.org
By analyzing a time-homogeneous Markov chain constructed using trajectories of
undrogued drifting buoys from the NOAA Global Drifter Program, we find that probability …