Reply to Comments on "Plotting positions in extreme value analysis" by N. Cook

Lasse Makkonen (Corresponding Author)

    Research output: Contribution to journalOther journal contributionScientific

    5 Citations (Scopus)


    This reply addresses the use of order statistics in extreme value analysis. The author has previously proposed in this journal that the distribution-dependent estimators of plotting position in extreme value analysis should be abandoned and replaced by the Weibull formula. It was also demonstrated that the use of the wrong plotting positions has resulted in underestimation of the probability of extreme-weather events. Cook’s comments challenge these developments and defend the previously presented plotting methods. In this reply it is outlined that the Weibull formula provides the exact probability PI of nonexceedance in order-ranked data. Hence, there is no sampling error related to PI. This renders Cook’s primary arguments invalid. The specific critical comments by Cook are also replied to and are shown to be unfounded.
    Original languageEnglish
    Pages (from-to)267-270
    Number of pages4
    JournalJournal of Applied Meteorology and Climatology
    Publication statusPublished - 2011
    MoE publication typeB1 Article in a scientific magazine


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