Articles | Volume 18
https://doi.org/10.5194/asr-18-115-2021
https://doi.org/10.5194/asr-18-115-2021
30 Jul 2021
 | 30 Jul 2021

Evaluation of wind speed estimates in reanalyses for wind energy applications

Sebastian Brune, Jan D. Keller, and Sabrina Wahl

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Cited articles

Bollmeyer, C., Keller, J. D., Ohlwein, C., Wahl, S., Crewell, S., Friederichs, P., Hense, A., Keune, J., Kneifel, S., Pscheidt, I., Redl, S., and Steinke, S.: Towards a high-resolution regional reanalysis for the European CORDEX domain, Q. J. Roy. Meteorol. Soc., 141, 1–15, https://doi.org/10.1002/qj.2486, 2015. a
Borsche, M., Kaiser-Weiss, A. K., and Kaspar, F.: Wind speed variability between 10 and 116 m height from the regional reanalysis COSMO-REA6 compared to wind mast measurements over Northern Germany and the Netherlands, Adv. Sci. Res., 13, 151–161, https://doi.org/10.5194/asr-13-151-2016, 2016. a, b
Brümmer, B., Lange, I., and Konow, H.: Atmospheric boundary layer measurements at the 280 m high Hamburg weather mast 1995–2011: mean annual and diurnal cycles, Meteorol. Z., 21, 319–335, https://doi.org/10.1127/0941-2948/2012/0338, 2012. a, b
BSH – Bundesamt für Seeschifffahrt und Hydrographie: FINO-Datenbank, available at: http://fino.bsh.de, last access: 11 January 2021. a
Conradsen, K., Nielsen, L. B., and Prahm, L. P.: Review of Weibull Statistics for Estimation of Wind Speed Distributions, J. Clim. Appl. Meteorol., 23, 1173–1183, https://doi.org/10.1175/1520-0450(1984)023<1173:ROWSFE>2.0.CO;2, 1984. a
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Short summary
Correct estimates of wind speed between 60 and 200 m above ground are of great interest for the renewable energy sector. Observed wind speeds are compared to three different reanalyses. ERA5 and COSMO-REA6 outperform MERRA-2 at offshore, flat and hilly sites. Over land, ERA5 models nighttime wind speed better than COSMO-REA6 due to better representation of the low level jet through higher vertical resolution, a more comprehensive data assimilation scheme, and/or the more recent model version.