摘要: Research studies were carried out to examine the behavior of floods and droughts, and to provide characteristics of run lengths of wet and dry periods which are used to physically interpret flood and drought properties. This was a... 展开 Research studies were carried out to examine the behavior of floods and droughts, and to provide characteristics of run lengths of wet and dry periods which are used to physically interpret flood and drought properties. This was approached through the modeling of daily hydrological series, with the models applied to several Indiana locations. Two newly-defined stochastic processes are constructed: the binary discrete autoregressive moving average (modeling the wet-dry precipitation sequence) mixed with an exponential distribution to express the precipitation magnitude (B-DARMA-E); and the multi-stage discrete autoregressive moving average process (M-DARMA). Both processes are used to model daily precipitation time series in Indiana. 收起