<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Regional frequency analysis of heavy precipitation amounts based on the estimation of the parameters of a regional distribution function using <italic>L</italic>-moments is adopted for the specific geographical-climatological settings of Slovakia. The paper focuses on the first step of the regional <italic>L</italic>-moment algorithm (<italic>Hosking, Wallis</italic>, 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 <italic>k</italic>-day precipitation amounts (<italic>k</italic> = 1 to 5 days). Even though the delineation of homo-geneous 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.</p></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 homo-geneous 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.

Hybrid Approach to Delineation of Homogeneous Regions for Regional Precipitation Frequency Analysis

Department of Land and Water Resources Management, Faculty of Civil Engineering, Slovak University of Technology, Slovakia

Department of Astronomy, Physics of the Earth and Meteorology, Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia

Slovak Hydrometeorological Institute, Bratislava, Slovakia

Journal of Hydrology and Hydromechanics

Regional frequency analysis of heavy precipitation amounts based on the estimation of the parameters of a regional distribution function using L-moments is...

Hybrid Approach to Delineation of Homogeneous Regions for Regional Precipitation Frequency Analysis

Published Online: Dec 24, 2009

Page range: 226 - 249

DOI: https://doi.org/10.2478/v10098-009-0021-1

Keywords
Slovensko, maximálne 1- až 5-denné úhrny zrážok, kalendárny rok, teplý/chladný polrok, regionálna frekvenčná analýza, homogénne regióny, -momenty, zhluková analýza

This content is open access.

Hybrid Approach to Delineation of Homogeneous Regions for Regional Precipitation Frequency Analysis

Published Online: Dec 24, 2009

Page range: 226 - 249

DOI: https://doi.org/10.2478/v10098-009-0021-1

KeywordsSlovensko, maximálne 1- až 5-denné úhrny zrážok, kalendárny rok, teplý/chladný polrok, regionálna frekvenčná analýza, homogénne regióny, -momenty, zhluková analýza

This content is open access.

Keywords
Slovensko, maximálne 1- až 5-denné úhrny zrážok, kalendárny rok, teplý/chladný polrok, regionálna frekvenčná analýza, homogénne regióny, -momenty, zhluková analýza