Low-flow analysis of streamflows in Slovenia using R software and lfstat package
Analiza nizkih pretokov vodotokov v Sloveniji z uporabo programa R in paketa lfstat
- Avtorji: Manca Petek, Mira Kobold, Mojca Šraj
- Citat: Acta hydrotechnica, vol. 27, no. 46, pp. 13-28, 2014.
- Povzetek: Poznavanje in napovedovanje nizkih pretokov predstavlja eno pomembnejših nalog učinkovitega upravljanja z vodami. Zaradi neugodne razporeditve padavin tekom leta, predstavlja suša in z njo povezano pomanjkanje vode v zadnjih letih tudi za Slovenijo velik problem. Za natančno in učinkovito analizo nizkih pretokov je treba analizirati več kazalnikov, hkrati pa morajo biti rezultati takih analiz pravilno ovrednoteni. V članku smo predstavili glavne kazalnike nizkih pretokov ter izvedli njihov izračun za 55 vodomernih postaj v Sloveniji. Med izbranimi kazalniki so indeks baznega odtoka, nekatere statistike nizkih pretokov (srednji letni n-dnevni minimum ter srednji, 70-, 90-, in 95-odstotni pretok), indeks sezonskosti in razmerje sezonskosti ter recesijska konstanta. Za izračun in analizo obravnavanih kazalnikov smo uporabili programsko orodje R in temu namenjen paket lfstat. Rezultati so predstavljeni tako analitično kot grafično, obenem pa je med kazalniki izvedena korelacijska analiza za ovrednotenje razmerij med njimi.
- Ključne besede: nizki pretoki, kazalniki nizkih pretokov, indeks baznega pretoka, statistike, sezonskost, recesijska krivulja
- Polno besedilo: a46mp.pdf
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