Abstract
Wind is the principal driver in some wind erosion models. The hourly wind speed data were generally required for precisely wind erosion modeling. In this study, a novel method to generate hourly wind speed data from daily wind statistics (daily average and maximum wind speeds together or daily average wind speed only) was established. Two typical windy locations (Lubbock and Big Spring, Texas, USA) with measured hourly wind speed data were used to validate the downscaling method. The results showed that the overall agreement between observed and simulated cumulative wind speed probability distributions appears excellent, especially for the wind speeds greater than 5 m s−1 range (erosive wind speed). The results further revealed that the values of daily average erosive wind power density (AWPD) calculated from generated wind speeds fit the counterparts computed from measured wind speeds well with high models’ efficiency (Nash-Sutcliffe coefficient).
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