Hybrid approach to delineation of homogeneous regions for regional precipitation frequency analysis.

Autor:	Gaál, Ladislav
Další autoři:	Szolgay, Ján, 1953- Lapin, Milan, 1948- Faško, Pavol
Jazyk:	angličtina
Předmět:	shluková analýza dešťové srážky cluster analysis rainfall články journal articles maxima of 1-to-5 day precipitation amounts calendar year warm/cold season regional frequency analysis homogeneous regions L-moments
Druh dokumentu:	Non-fiction
ISSN:	0042-790X
Abstrakt:	Abstract: Regional frequency analysis of heavy precipitation amounts based on the estimation of the parameters of a regional distribution function using L-moments is adopted for the specific geographical-climatological settings of Slovakia. The paper focuses on the first step of the regional L-moment algorithm (Hosking, Wallis, 1997), which is the delineation of homogeneous regions. Objective and process-based logical pooling techniques are used to form homogeneous pooling groups of rainfall gauging stations for regional frequency analysis of k-day precipitation amounts (k = 1 to 5 days). Even though the delineation of homogeneous regions by means of objective methods is generally accepted and recommended in the literature, it is concluded here that such a pooling of similar sites should not be carried out automatically in precipitation analysis. Instead, a combination of physical/geomorphological considerations and objective methods should be preferred.
Databáze:	Katalog Knihovny AV ČR
Externí odkaz:	Plný text