Evaluating the precipitation parameters of CLIGEN

In the present paper, the CLIGEN model has been used to simulate the climate parameters for the Neijiang City based on interpolation-simple linear interpolation, Fourier series and modified linear interpolation. The simulated results show that the rainfall days, rainfall probability of the event, the volume of rainfall are reasonable. Compare to the results derived by the Fourier interpolation, the results derived by the interpolation-simple Linear interpolation and modified linear interpolation are closer to the real value. For the other values such as standard deviations, annual rainfall, seasonal rainfall and extreme rainfall events, those values are lower than the real value. Because the CLIGEN model are established using the climate data of the United States climate station, and the climate is characterized by medium and light rainfall intensity. And so the climate features lead to the lower results of those precipitation parameters.