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www.hydrol-earth-syst-sci-discuss.net/6/4485/2009/
doi:10.5194/hessd-6-4485-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Copula based multisite model for daily precipitation simulation
1Institute of Hydraulic Engineering, University of Stuttgart, 70569 Stuttgart, Germany
2Civil Engineering, University of KwaZulu-Natal, Durban, South Africa
Abstract. From the point of view of multisite stochastic daily rainfall modelling, there are two new ideas introduced in this paper. The first is the use of asymmetrical copulas to model the spatial interdependence structure of the rainfall amounts together with the rainfall occurrences in one relationship. The second is in the evaluation of the (necessary but often ignored) clustering behaviour of the simulated rainfall; this evaluation is performed by calculating the entropy of the observations at all the acute angled triangles that can be formed from the sequences at the gauge sites, as a function of their mutual separation distance. It turns out that the model captures the qualities desired and offers a fresh approach to a relatively mature problem in hydrometeorology.
Discussion Paper (PDF, 3217 KB) Interactive Discussion (Closed, 4 Comments) Final Revised Paper (HESS)
Citation: Bárdossy, A. and Pegram, G.: Copula based multisite model for daily precipitation simulation, Hydrol. Earth Syst. Sci. Discuss., 6, 4485-4534, doi:10.5194/hessd-6-4485-2009, 2009. Bibtex EndNote Reference Manager XML
