Daten zum Projekt

Propagation of Extreme Events in Spatially Extended Excitable Systems (extension)

Initiative: Modellierung und Simulation komplexer Systeme (beendet)
Ausschreibung: Extremereignisse: Modellierung, Analyse und Vorhersage
Bewilligung: 02.07.2014
Laufzeit: 3 Jahre


This project extension aims at a theoretical understanding of the propagation of initially localized extreme events in spatially extended excitable systems. Two particular extreme events are considered: harmful algal blooms in the ocean and epileptic seizures in the human brain. Having already identified and experimentally verified important mechanisms for the generation of extreme events, the team will now evaluate mechanisms relevant for their propagation. They plan to substantially extend the previously developed models in order to account for competing activating and inhibiting processes, which turned out to be essential for propagation. Extreme events possess different forms of propagation due to the different transport-mediating conditions. These differences will be bridged by developing a unifying modeling framework of the propagation. A robust identification and quantification of complex directed propagation phenomena in such systems from sparsely sampled data as well as a prediction of when and where extreme events propagate are challenging problems requiring the development of new time-series-analysis techniques. Data sets from algal blooms and epileptic seizures are used to verify the propagation of extreme states.


  • Prof. Dr. Ulrike Feudel

    Universität Oldenburg
    Fakultät V - Mathematik und Naturwissenschaften
    Institut für Chemie und
    Biologie des Meeres (ICBM)

  • Prof. Dr. Holger Kantz

    Max-Planck-Institut für Physik
    komplexer Systeme
    AG Nichtlineare Dynamik
    und Zeitreihenanalyse

  • Prof. Dr. Jürgen Kurths

    Potsdam-Institut für
    Klimafolgenforschung e. V.
    Forschungsbereich 4:
    Transdisziplinäre Konzepte und Methoden

  • Prof. Dr. Klaus Lehnertz

    Universitätsklinikum Bonn
    Klinik für Epileptologie
    AG Neurophysik

  • Dr. Stefanie Moorthi

    Universität Oldenburg
    Fakultät 5: Mathematik und Naturwissenschaften
    Institut für Chemie und Biologie des Meeres

  • Prof. Dr. Helmut Hillebrand

    Universität Oldenburg
    Institut für Chemie und Biologie des Meeres
    Arbeitsgruppe Planktologie