Threshold selection for wave heights: asymptotic methods based on L-moments
Methodology
2021-05-14 v1 Applications
Abstract
Two automatic threshold selection (TS) methods for Extreme Value analysis under a peaks-over-threshold (POT) approach are presented and evaluated, both built on: fitting the Generalized Pareto distribution (GPd) to excesses' samples over candidate levels ; the GPd-specific relation between L-skewness and L-kurtosis; the asymptotic behaviour of the matching L-statistics. Performance is illustrated on significant wave heights data sets and compared to the L-moment-based heuristic in [10], which is found to be favorable. PUBLISHED VERSION AVAILABLE AT: https://www.spestatistica.pt/storage/app/uploads/public/609/28f/6d0/60928f6d08a0c016386627.pdf
Cite
@article{arxiv.2105.06142,
title = {Threshold selection for wave heights: asymptotic methods based on L-moments},
author = {Jessica Silva Lomba and Maria Isabel Fraga Alves},
journal= {arXiv preprint arXiv:2105.06142},
year = {2021}
}