Articles | Volume 20, issue 7
https://doi.org/10.5194/hess-20-2705-2016
https://doi.org/10.5194/hess-20-2705-2016
Research article
 | 
11 Jul 2016
Research article |  | 11 Jul 2016

Investigation of hydrological time series using copulas for detecting catchment characteristics and anthropogenic impacts

Takayuki Sugimoto, András Bárdossy, Geoffrey G. S. Pegram, and Johannes Cullmann

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Short summary
This paper is aims to detect the climate change impacts on the hydrological regime from the long-term discharge records. A new method for stochastic analysis using copulas, which has the advantage of scrutinizing the data independent of marginal, is suggested in this paper. Two measures are used in the copula domain: one focuses on the asymmetric characteristic of data and the other compares the distances between the copulas. These are calculated for 100 years of daily discharges and the results are discussed.