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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 25 Mai 2018 à 11h dans la salle  100  bat 712, Orme des Merisiers.

25/05/2018 Henri Benisty & Hervé Bercegol: "Statistical mechanics as a tool to understand the role of energy in the economy"

Abstract

 

Multi-agent modelling has been used in Econophysics to study the underlying mechanisms of wealth and income distributions. We will recall the basic results of this line of research, which started from a formal analogy between money (the accounting unit of economists) and energy (the accounting unit of physicists). Models could replicate the main features of static income distribution in various countries. More recently, Geometric Brownian Motion was shown to mimic economic crises  and dynamics of inequality as resulting from the coexistence of the law of compound interest and statistical fluctuations.
Our goal is to extend this research domain to decipher the interplay of energy fluxes and money transfers, and of stocks of both ; thus, we need to separate money from energy. We will discuss our first attempts, where agents collect energy in the form of a renewable, rather slow stream of energy from the sun (through agriculture). Agents also mine minerals from the soil, using them to increase their ability to harvest and crop the  biomass energy. Minerals are accelerators of the economic activity ; when going from this simple models to more complex multisectorial economies, minerals could thus become good candidates for a physical realization of money.

RENCONTRES PASSEES

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 : 01/08/2018
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