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HYBRID MODEL FOR ONE STEP AHEAD FORECASTING OF DAILY RIVER FLOWS
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E. Peksova-Szolgayova;J. Szolgay;Z. Lukac
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1314-2704
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English
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17
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33
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In this study a hybrid model for one step ahead forecasting of mean daily discharges at the gauging station Bansk? Bystrica on the Hron River in Slovakia was developed. Daily discharges were modeled and predicted by the decomposition of the mathematical model of the runoff generation process into two components ? deterministic and stochastic. For such approach the term hybrid is often adopted. The aim was to improve the forecasting performance by combining the conceptual daily rainfall runoff model HRON for one step ahead discharge forecasts with forecasts of several time series models for the forecasting of the error time series of the deterministic rainfall runoff model. Since these error processes are in general nonlinear and in addition to that they may exhibit nonstationarity and heteroscedasticity, beside traditional ARMA type models, GARCH type nonlinear time series models were also considered. The one - step - ahead forecasting performance of the nonlinear time series models was compared with that of the linear error series models.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017,
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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195-202
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website
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cdrom
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3544
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river flow forecasting; hybrid modelling; HRON rainfall-runoff model; ARMA model; GARCH model
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