Faculty of Civil and Geodetic Engineering, Ljubljana (FGGLJ)
13.
Uporaba kopul v hidrologiji
Bezak, Nejc ...
Funkcije kopula se v svetu vse pogosteje uporabljajo na različnih znanstvenih področjih, v hidrologiji pa se njihova uporaba v večji meri pojavlja šele v zadnjem desetletju. V prispevku so prikazani ...rezultati nekaterih praktičnih možnosti uporabe kopul v hidrologiji. Naredili smo bivariatne ter trivariatne verjetnostne analize elementov visokovodnih valov (konice pretokov, volumni ter časi trajanja), analizirali smo povezanost pretokov, volumnov valov ter vrednosti koncentracij suspendiranih snovi ter definirali model, s katerim lahko na podlagi znanih vrednosti pretokov in padavin ocenimo vrednosti koncentracij suspendiranih snovi. Z uporabo statističnih testov smo pokazali, da je kopula model dal boljše rezultate kot nekateri pogosto uporabljeni regresijski modeli. S tem smo v oceno koncentracij suspendiranih snovi vpeljali dodatne informacije (padavine) in dobili ocenjene vrednosti bližje dejanskim, izmerjenim vrednostim. Pri multivariatnih verjetnostnih analizah pa smo izračunali različne skupne povratne dobe
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