Validation of WRF generated wind field in complex terrain

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

doi:10.1127/metz/2021/1068

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 language	English
Journal	Meteorologische Zeitschrift
Volume	30
Issue number	5
Pages (from-to)	413-428
Number of pages	16
ISSN	0941-2948
DOIs	https://doi.org/10.1127/metz/2021/1068
Publication status	Published - 2021

Keywords

Mesoscale wind modeling
Model validation
Spectral characteristics
Complex terrain

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title = "Validation of WRF generated wind field in complex terrain",

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.",

keywords = "Mesoscale wind modeling, Model validation, Spectral characteristics, Complex terrain",

author = "Turid Poulsen and Niclasen, {Bardur A.} and Gregor Giebel and Beyer, {Hans Georg}",

year = "2021",

doi = "10.1127/metz/2021/1068",

language = "English",

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T1 - Validation of WRF generated wind field in complex terrain

AU - Poulsen, Turid

AU - Niclasen, Bardur A.

AU - Giebel, Gregor

AU - Beyer, Hans Georg

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

KW - Mesoscale wind modeling

KW - Model validation

KW - Spectral characteristics

KW - Complex terrain

U2 - 10.1127/metz/2021/1068

DO - 10.1127/metz/2021/1068

M3 - Journal article

SN - 0941-2948

VL - 30

SP - 413

EP - 428

JO - Meteorologische Zeitschrift

JF - Meteorologische Zeitschrift

IS - 5

ER -

Validation of WRF generated wind field in complex terrain

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Keywords

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