Statistics of extreme events in fluid flows and waves

TP Sapsis - Annual Review of Fluid Mechanics, 2021 - annualreviews.org
Extreme events in fluid flows, waves, or structures interacting with them are critical for a wide
range of areas, including reliability and design in engineering, as well as modeling risk of …

Applications of large deviation theory in geophysical fluid dynamics and climate science

VM Gálfi, V Lucarini, F Ragone, J Wouters - La Rivista del Nuovo Cimento, 2021 - Springer
The climate is a complex, chaotic system with many degrees of freedom. Attaining a deeper
level of understanding of climate dynamics is an urgent scientific challenge, given the …

Very rare heat extremes: quantifying and understanding using ensemble reinitialization

C Gessner, EM Fischer, U Beyerle… - Journal of Climate, 2021 - journals.ametsoc.org
Heat waves such as the one in Europe 2003 have severe consequences for the economy,
society, and ecosystems. It is unclear whether temperatures could have exceeded these …

Rare event algorithm study of extreme warm summers and heatwaves over Europe

F Ragone, F Bouchet - Geophysical Research Letters, 2021 - Wiley Online Library
The analysis of extremes in climate models is hindered by the lack of statistics due to the
computational costs required to run simulations long enough to sample rare events. We …

[HTML][HTML] The seven deadly sins: When computing crystal nucleation rates, the devil is in the details

KE Blow, D Quigley, GC Sosso - The Journal of Chemical Physics, 2021 - pubs.aip.org
The formation of crystals has proven to be one of the most challenging phase
transformations to quantitatively model—let alone to actually understand—be it by means of …

Simulating AMOC tipping driven by internal climate variability with a rare event algorithm

M Cini, G Zappa, F Ragone, S Corti - npj Climate and Atmospheric …, 2024 - nature.com
This study investigates the possibility of Atlantic Meridional Overturning Circulation (AMOC)
noise-induced tipping solely driven by internal climate variability without applying external …

Machine learning applications for weather and climate need greater focus on extremes

PAG Watson - Environmental Research Letters, 2022 - iopscience.iop.org
Multiple studies have now demonstrated that machine learning (ML) can give improved skill
for predicting or simulating fairly typical weather events, for tasks such as short-term and …

Rare event simulation of extreme European winter rainfall in an intermediate complexity climate model

J Wouters, RKH Schiemann… - Journal of Advances in …, 2023 - Wiley Online Library
We test the application of a rare event simulation (RES) algorithm to accelerate the sampling
of extreme winter rainfall over Europe in a climate model. The genealogical particle analysis …

[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 …

Reinforcement learning of rare diffusive dynamics

A Das, DC Rose, JP Garrahan… - The Journal of Chemical …, 2021 - pubs.aip.org
We present a method to probe rare molecular dynamics trajectories directly using
reinforcement learning. We consider trajectories that are conditioned to transition between …