Abstract
The quality of a numerical weather forecast is influenced by uncertainties that may arise from the initial conditions or the design of the model itself. Specifically, our evaluation of a limited area model wind speed forecasts over Romania shows that forecast errors are significant in areas with complex topography, or other local characteristics. The purpose of this paper is to reduce these errors obtained from a deterministic model forecast. A bias correction method that post-processes the model output was implemented in order to improve the accuracy of the wind speed prediction. The new forecast was evaluated using standard statistical scores, for winter and summer seasons of the year 2016, at six stations in Romania located in areas with different topography. The corrected forecast was also compared to that obtained from a simple linear regression model using both simulated and observed wind speed data. The results show that the application of such methods generally leads to an improvement of the wind speed forecast. Furthermore, the reduction in the forecast error depends both on the particularities of the area and the period under review.
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References
Bauer P, Thorpe A, Brunet G (2015) The quiet revolution of numerical weather prediction. Nature 525:47–55. https://doi.org/10.1038/nature14956
Cheng WY, Steenburgh WJ (2007) Strengths and weaknesses of MOS, running-mean bias removal, and Kalman filter techniques for improving model forecasts over the western United States. Wea Forecast 22:1304–1318. https://doi.org/10.1175/2007waf2006084.1
Chu Y, Li C, Wang Y, Li J, Li J (2016) A long-term wind speed ensemble forecasting system with weather adapted correction. Energies 9:894. https://doi.org/10.3390/en9110894
Cîrstea Ş, Martiş C, Cîrstea A, Constantinescu-Dobra A, Fülöp M (2018) Current situation and future perspectives of the Romanian renewable energy. Energies 11:3289. https://doi.org/10.3390/en11123289
Cui B, Toth Z, Zhu Y, Hou D (2012) Bias correction for global ensemble forecast. Wea Forecast 27:396–410. https://doi.org/10.1175/WAF-D-11-00011.1
Glahn B (2014) Determining an optimal decay factor for bias-correcting MOS temperature and dewpoint forecasts. Wea Forecast 29:1076–1090. https://doi.org/10.1175/waf-d-13-00123.1
Jiao J (2018) A hybrid forecasting method for wind speed. MATEC Web Conf. https://doi.org/10.1051/matecconf/201823203013
Li D, Feng J, Xu Z, Yin B, Shi H, Qi J (2019) Statistical bias correction for simulated wind speeds over CORDEX-East Asia. Earth Space Sci 6:200–211. https://doi.org/10.1029/2018ea000493
Orrell D, Smith L, Barkmeijer J, Palmer TN (2001) Model error in weather forecasting. Nonlinear Proc Geoph 8:357–371. https://doi.org/10.5194/npg-8-357-2001
Rusan N (2010) Wind energy potential in the east of Romania. Rom Journ Geogr 54:77–88
Sweeney CP, Lynch P, Nolan P (2013) Reducing errors of wind speed forecasts by an optimal combination of post-processing methods. Meteorol Appl 20:32–40. https://doi.org/10.1002/met.294
Termonia P, Fischer C, Bazile E, Bouyssel F, Brožková R, Bénard P, Bochenek B, Degrauwe D, Derková M, El Khatib R, Hamdi R, Mašek J, Pottier P, Pristov N, Seity Y, Smolíková P, Španiel O, Tudor M, Wang Y, Wittmann C, Joly A (2018) The ALADIN System and its canonical model configurations AROME CY41T1 and ALARO CY40T1. Geosci Model Dev 11:257–281. https://doi.org/10.5194/gmd-11-257-2018
Vespremeanu-Stroe A, Cheval S, Tatui F (2012) The Wind Regime of Romania-Characteristics. Forum geografic, Trends and North Atlantic Oscillation Influences. https://doi.org/10.5775/fg.2067-4635.2012.003.d
Wang Y, Belluš M, Ehrlich A, Mile M, Pristov N, Smolíková P, Španiel O, Trojáková A, Brozkova R, Cedilnik J, Klarić D, Kovačić T, Mašek J, Meier F, Szintai B, Tascu S, Vivoda J, Wastl C, Wittmann C (2018) 27 years of regional cooperation for limited area modelling in Central Europe. B Am Meteorol Soc 99:1415–1432. https://doi.org/10.1175/bams-d-16-0321.1
Wilks DS (2011) Statistical methods in the atmospheric sciences, vol 100. Academic press, New York
Woodcock F, Engel C (2005) Operational consensus forecasts. Wea Forecast 20:101–111. https://doi.org/10.1175/waf-831.1
Wu YK, Hong JS (2007) A literature review of wind forecasting technology in the world. In 2007 IEEE Lausanne Power Tech https://doi.org/10.1109/PCT.2007.4538368, pp 504–509
Zamo M (2016) Statistical Post-processing of Deterministic and Ensemble Wind Speed Forecasts on a Grid. Dissertation, Université Paris-Saclay
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We thank Dr. Fedor Mesinger (Editor, Meteorology and Atmospheric Physics) and two anonymous reviewers for the constructive comments.
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Craciun, A., Stefan, S. A post-processing method applied to simulated wind speeds in Romania. Meteorol Atmos Phys 133, 631–642 (2021). https://doi.org/10.1007/s00703-020-00773-y
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DOI: https://doi.org/10.1007/s00703-020-00773-y