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September Env-Stats Seminar (Jenny Wadsworth, Lancaster, September 24th 4PM AEST)

  • 15 Sep 2021 4:24 PM
    Reply # 11089755 on 10975601
    David Warton (Administrator)

    Unfortunately this seminar has been cancelled, apologies for inconvenience

  • 2 Sep 2021 10:58 AM
    Message # 10975601
    David Warton (Administrator)

    NIASRA and the SSA Environmental Statistics section present the following seminar:

    SpeakerDr Jenny Wadsworth (Lancaster University)

    TitleTowards higher-dimensional spatial and spatio-temporal extremes

    Date: 24 September 2021 Friday

    Time4 - 5 pm AEST



    The past decade has seen a huge effort in modelling the extremes of spatial processes. Significant challenges include the development of models with an appropriate asymptotic justification for the tail; ensuring model assumptions are compatible with the data; and the fitting of these models to (at least reasonably) high-dimensional datasets. I will review basic ideas of modelling spatial extremes, and introduce a more scalable approach via conditioning on a single site being extreme, which can also be applied in the space-time context. As we move towards being able to model extremes at more locations, we must also learn to deal with the complex structures of larger datasets, such as spatial nonstationarity in the extremal dependence. Time permitting, approaches to simplify these structures via deformations tailored to extremal dependence will also be discussed. 


    Jenny is currently a Senior Lecturer in the Department of Mathematics and Statistics at Lancaster University. Her main research interest is extreme value theory, with a particular focus on multivariate and spatial problems, and applications in the environmental sciences.

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