T. Spangehl et al.: Intercomparing the quality of recent reanalyses for offshore wind farm planning 117 Figure 2. Frequency distribution of hourly wind speed at 100 m for model based products at FINO1 grid points (blue). Results are shown for (a) COSMO-REA6, (b) CERRA-fc, (c) ERA5 and (d) HoKliSim-De. Results obtained from FINO1 measurements at 102 m are additionally shown (grey). Values indicate the number of observations (n), the average [m s?1], median [m s?1], 1st and 99th percentile value [m s?1]. Moreover, the shape parameter (dimensionless) and scale parameter [m s?1] of the estimated Weibull distribution are shown. Histograms display absolute numbers. The time period is 2004–2009. Table 3. Satistical parameters of the pdf’s of hourly wind speed [m s?1] at 100 m for model based products at FINO1 grid cells. FINO1 anemometer measurements at 102 m are used as reference. The time period is 2004–2009. The values correspond to the histograms shown in Fig. 2. Statistical parameters of pdf’s of hourly wind speed [m s?1] at 100 m at FINO1 for different products Parameter Mean Median 1st percentile 99th percentile Shape Scale FINO1 9.93 9.60 1.43 22.02 2.26 11.21 COSMO-REA6 10.05 9.75 1.32 22.63 2.25 11.35 CERRA-fc 9.95 9.70 1.24 21.75 2.3 11.23 ERA5 9.69 9.43 1.36 21.09 2.34 10.94 HoKliSim-De 9.83 9.51 1.27 22.14 2.22 11.10 https://doi.org/10.5194/asr-20-109-2023 Adv. Sci. Res., 20, 109–128, 2023