Validation the Wind Generator of Revised Wind Erosion Equation (RWEQ) using measured wind data of China

The Revised Wind Erosion Equation (RWEQ) is a process-based, field-scale, empirical model with the ability to estimate annual or period wind erosion. A wind generator was used to reproduce wind data based on observed wind records in RWEQ. The need for validating the wind generator using measured wind data of China is growing. In this study, wind factor (Wf) was chosen to investigate the performance of the wind generator. We compared Wf calculated from stochastically generated wind data (Wf(g)) with Wf computed from the measured wind data (Wf(m)) for 36 weather stations in north China to test the wind generator. The wind generator under-estimated the wind factor generally while simple linear regression between Wf(g) and Wf(m) demonstrated significant correlation (R=0.84, P<0.001). The result revealed that the wind generator could not be directly used to evaluate the wind factor for the given weather stations in China.