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Groupe de Travail Climat - Mécanique statistique

OBJECTIFS

 

Le Groupe de Travail Climat - Mecanique Statistique a été créé par l'équipe ESTIMR (Extrèmes : Statistiques, Impacts et Regionalisations) du Laboratoire LSCE et l'équipe SphYNX du  SPEC avec l'objectif de promouvoir les échanges entre les chercheurs qui travaillent à l'interface de ces deux sujets.

La participation est libre, les rencontres sont très informelles. Pour plus d'informations contacter: davide.faranda[at]lsce.ipsl.fr

 

PROCHAINES RENCONTRES

La prochaine réunion du GT Climat - Méca stat aura lieu le 23 Novembre 2018 de 10h30 dans la salle  1129 bat 714 ICE, Orme des Merisiers"

23/11/2018 Ted Shepherd: "Ethics and the construction of regional climate-change information"

Abstract:

"Although there is high confidence in thermodynamic aspects of climate change (warming, sea-level rise, increased humidity, melting of ice), the levels of confidence concerning dynamical aspects of climate change associated with atmospheric circulation (monsoons, storm tracks, subsidence zones) are much lower. Yet atmospheric circulation will strongly mediate climate impacts at the regional scale. By employing the ‘confidence’ framework, which seeks to predict what will happen, climate science often finds itself in something of a straightjacket when it comes to climate change impacts at the regional scale. This has ethical implications, because the focus on avoiding Type 1 errors (false discoveries) to ensure reliability raises the prospect of committing Type 2 errors (missed warnings).But at the regional scale, where information on climate change has to be combined with many other factors affecting vulnerability and exposure — most of which are highly uncertain — the relevant question is not “What will happen?” but rather “What is the impact of particular actions under an uncertain regional climate change?” It is argued here that the storyline approach to climate change — the identification of physically self-consistent, plausible pathways — permits such a re-framing of the question and thereby can unlock the Gordian Knot of regional climate-change information."

The presentation will be given in english. 

 

RENCONTRES PASSEES

08-09/10/2018 Workshop: "Dynamical Systems in Climate Sciences" 
​​​​​​    -Yuzuru Sato (Hokkaido University, Sapporo, Japan) - Stochastic bifurcations in random dynamical systems
    -Francesco Ragone (ENS Lyon, France) - Simulation Simulation of extreme European Heat Waves with rare events algorithms
    -Berengere Dubrulle/Francois Daviaud (SPEC-CNRS-CEA Saclay, France) - Stochastic Chaos in a turbulent swirling flow
    -Nikki Vercauteren (Freie Universitaet Berlin, Germany) - Scale Interactions and anisotropy of turbulence in stable boundary layers
    -Stephane Vannitsem (RMI- Bruxelles, Belgium) - Is ocean surface wind stress key in the long term predictability of the atmosphere
    -Sandro Vaienti/Theo Caby (CPT Marseille, France) - Generalized dimensions as a tool to study the penultimate attractor
    -Davide Faranda (LSCE IPSL CNRS, France) - Dynamical indicators to study atmospheric flows and climate change
25/05/2018 Henri Benisty & Hervé Bercegol: "​​​Statistical mechanics as a tool to understand the role of energy in the economy"
04/04/2018 Valerio Lucarini: "Constructing and Testing Parametrizations of Unresolved Processes in GFD"
12/03/2018 Sebastien Fromang: "Transition between blocked and zonal flows in a rotating flow with bottom topography"
12/01/2018 Christophe Goupil: "From thermoelectricity to finite time thermodynamics: a closed loop approach to thermodynamics"
23/11/2017 Yuzuru Sato: "Anomalous diffusion in random dynamical systems"
03/10/2017 Nicholas Moloney: "ELO rating system in Chess"
06/07/2017 Stefan Wieland: "The form of steady states in power transmission grids"
17/05/2017 Emmanuel Mouche: "Modelisation des pics de crue comme phenomenes critiques: de la theorie des files d'attente à la physique statistique"
2/02/2017 Alexis Tantet: "Ergodic Theory of climate: variability, stability and response"
14/12/2016 Carmen Alvarez-Castro: "Changes in the atmospheric dynamics leading to West-European heatwaves since 1900."
15/11/2016 Workshop: "Applications of statistical-mechanics and dynamical systems to climate"
21/09/2016  Berengere Dubrulle: "Mieux maîtriser la turbulence : première observation d'événements singuliers de dissipation de l'énergie"
12/07/2016  Didier Paillard: "CliMEP : un modèle de climat basé sur la maximisation de la production d'entropie"
13/04/2016  Guillaume Nevo: "Prevision et detection des crises dans les systèmes complexes"
05/02/2016  Yoann Robin: "Pistes et Resultats sur l'utilisation de la Distance de Wasserstein"
08/12/2015  Berengere Dubrulle: "Vers une compréhension du principe de maximisation de production d'entropie"
15/10/2015  Hervé Bercegol: "Rayonnement électromagnétique, collisions inélastiques et production d'entropie"
16/06/2015  Pierre Sepulchre: "La modélisation des niches écologiques"
23/03/2015  Alexandre Pohl & Gilles Ramstein: "Régulations et déregulations du Climat aux grandes échelles de temps"
05/01/2015  Didier Paillard: Climat : "les mystères des abysses..." 

 

Mise à jour : 26/10/2018
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