Validation of WRF generated wind field in complex terrain

Turid Poulsen, Bardur A. Niclasen, Gregor Giebel, Hans Georg Beyer

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    Abstract

    Spatial and temporal characteristics of simulated wind fiel - stemming from the mesoscale numerical weather prediction system WRF with boundary conditions from ERA5 reanalysis data - are validated against measurements in complex terrain. In addition to f nding statistical error metrics in the form of bias, RMSE, and correlation coeff cients, the study carries out spectral comparisons in the form of power spectral densities and coherence functions. The spectral values of the WRF-generated wind speeds are lower compared to what is seen for the measured data, while the coherence function yield higher values. However, there is a signif cant improvement of the spectral characteristics of the WRF-generated wind speeds from those of the ERA5 wind speeds.
    Original languageEnglish
    JournalMeteorologische Zeitschrift
    Volume30
    Issue number5
    Pages (from-to)413-428
    Number of pages16
    ISSN0941-2948
    DOIs
    Publication statusPublished - 2021

    Keywords

    • Mesoscale wind modeling
    • Model validation
    • Spectral characteristics
    • Complex terrain

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