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Estimation of T-year flows using a regional skewness coefficient of Log-Pearson type III. Distribution

In: Acta Hydrologica Slovaca, vol. 20, no. 1
Jakub Mészáros - Pavla Pekárová - Ján Pekár - Katarína Melová
Detaily:
Rok, strany: 2019, 22 - 31
Jazyk: slo
Kľúčové slová:
floods, T-year values, LP3 distribution
URL originálneho zdroja: http://www.ih.sav.sk/ah
O článku:
Despite the significant development of statistical methods for determining the parameters of theoretical distribution functions, the estimation of T-year flood discharges remains a complex problem, burdened by various uncertainties. The floods that have hit (not only) Slovakia last decades (1997, 1999, 2006, 2010) have led to the admission of an EU flood directive, in which it is necessary to estimate T-year flood values with very long time of repetition (200-1000 years). In the submitted paper we test the method of processing of design values based on statistical processing of the time series of maximum annual peak flows. In estimating the T-year values, we test the use of the log-Pearson type III distribution (LP3). We present the results on the streams of the region in the Slovak part of the Morava river basin. Regional skewness coefficient Gr of log-Pearson type III distribution in the Morava river basin were estimated at 0.38. Although the accuracy of estimating T-year flow rates has been improved by using the regional coefficient, there is still a high uncertainty in estimation of design values for long time of repetition.
Ako citovať:
ISO 690:
Mészáros, J., Pekárová, P., Pekár, J., Melová, K. 2019. Estimation of T-year flows using a regional skewness coefficient of Log-Pearson type III. Distribution. In Acta Hydrologica Slovaca, vol. 20, no.1, pp. 22-31. 2644-4690. DOI: https://doi.org/10.31577/ahs-2019-0020.01.0003

APA:
Mészáros, J., Pekárová, P., Pekár, J., Melová, K. (2019). Estimation of T-year flows using a regional skewness coefficient of Log-Pearson type III. Distribution. Acta Hydrologica Slovaca, 20(1), 22-31. 2644-4690. DOI: https://doi.org/10.31577/ahs-2019-0020.01.0003
O vydaní:
Vydavateľ: Institute of Hydrology SAS, Dúbravská cesta 9, 841 05 Bratislava, Slovakia
Publikované: 11. 6. 2019