Derivation of IDF Curve by the Simulation of Hourly Precipitation using Nonhomogeneous Markov Chain Model

비동질성 Markov 모형에 의한 시간강수량 모의발생을 이용한 IDF 곡선의 유도

A non-homogeneous markov model which is able to simulate hourly rainfall series is developed for estimating reliable hydrological variables. The proposed approach is applied to simulate hourly rainfall series in Korea. The simulated rainfall is used to estimate the design rainfall and compared to observations in terms of reproducing underlying distributions of the data to assure model's validation. The model shows that the simulated rainfall series reproduce a similar statistical attribute with observations, and expecially maximum value is gradually increased as number of simulation increase.