Statistical methods for trend investigation in hydrological non-seasonal series

• Autorzy: Rutkowska A.

Warianty tytułu

PL

Metody statystyczne badania trendu w niesezonowych szeregach hydrologicznych

• Języki publikacji: EN

Abstrakty

EN

In the paper some methods for identification of the monotonic deterministic trend in hydrological time series were presented and discussed: the t-test, the Mann-Kendall test with corrections, the Theil-Sen estimator with the test based on bootstrap and the prewhitening method. The tests varied in assumptions on the existence of the serial correlation and the distribution of the variables in the series. Occasionally, when assumptions were not fulfilled, the tests led to contradictory conclusions. As examples, the applications to annual maximum and minimum flows were presented.

PL

W artykule zaprezentowano metody statystyczne wykrywania deterministycznego, monotonicznego trendu w szeregach hydrologicznych: test t, test Manna-Kendalla wraz z poprawkami, estymator Theila-Sena wraz z testem opartym na metodzie bootstrap oraz metodę pre-whitening. Testy różniły się założeniami dotyczącymi autokorelacji i funkcji rozkładu badanych zmiennych. Niekiedy, jeśli założenia testów nie były spełnione, zastosowanie ich doprowadziło do sprzecznych wniosków. W przykładach zastosowano te testy do maksymalnych i minimalnych przepływów rocznych.

Słowa kluczowe

EN

hydrology; hydrological series; statistical method; statistical test; trend analysis

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Formatio Circumiectus
• Rocznik: 2013
• Tom: 12
• Numer: 4
• Opis fizyczny: p.85-94,fig.,ref.

Twórcy

autor

Rutkowska A.

• Department of Applied Mathematics, Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Balicka 253C, 30-198 Krakow, Poland

Bibliografia

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Uwagi

PL

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