Skip to main content
2024 EWRI Congress Main banner
Back

2024 EWRI Congress

Watershed

Statistical, Risk, and Uncertainty Analyses in Hydrology - I

394 - Estimation of Delay Parameters Using C-C Method for Attractor Reconstruction of Hydrologic Time Series

Monday, May 20, 2024
1:15 PM – 1:30 PM CT
Room: S 103 D
To estimate the nonlinear dependence, it is necessary to reconstruct the attractor from time series. Reconstruction of the attractor requires two parameters, the embedding dimension , and the delay time, or delay time window. However, there is no standard procedure for estimating the delay time window. To address this problem, Kim et al. (1998a) [Phys Rev E 58(5):5676-5682] developed a method for estimating the delay time window which is called the C-C method. The purpose of the present study is to test the C-C method on real hydrologic time series and to evaluate its nonlinear deterministic properties. Three hydrological time series (1. Daily streamflow series from St. Johns near Cocoa, Florida, USA; 2. Biweekly volume time series from the Great Salt Lake, Utah, USA, and 3. Daily rainfall series from Seoul, South Korea) are tested and compared with those obtained using the conventional autocorrelation function (ACF) method.