Evaluation of high resolution spatio-temporal precipitation extremes from a stochastic weather generator

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    Abstract

    Spatio-temporal rainfall is modelled for the North-Eastern part of Zealand (Denmark) using the Spatio-Temporal Neyman-Scott Rectangular Pulses model as implemented in the RainSim software. Hourly precipitation series for fitting the model are obtained from a dense network of tipping bucket rain gauges in
    the model area. The spatio-temporal performance of the model with respect to precipitation extremes is evaluated in the points of a 2x2 km regular grid covering the full model area. The model satisfactorily reproduces the extreme behaviour of the observed precipitation with respect to event intensity levels and unconditional spatial correlation when evaluated using an event based ranking approach at point scale and an advanced spatio-temporal coupling of extreme events. Prospectively the model can be used as a tool to evaluate the impact of climate change without relying onprecipitation output from climate model modelled
    precipitation directly, but merely on the climate change signal derived from climate models.
    Original languageEnglish
    Publication date2012
    Number of pages5
    Publication statusPublished - 2012
    Event9th International Workshop on Precipitation in Urban Areas - St. Moritz, Switzerland
    Duration: 6 Dec 20129 Dec 2012
    Conference number: 9

    Workshop

    Workshop9th International Workshop on Precipitation in Urban Areas
    Number9
    Country/TerritorySwitzerland
    CitySt. Moritz
    Period06/12/201209/12/2012

    Keywords

    • RainSim
    • Spatio-Temporal Neyman-Scott Rectangular Pulses model
    • Weather generator

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