Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich.
mehr Informationen...
The L-moment based regional approach to curve numbers for Slovak and Polish Carpathian catchments
Ist Teil von
Journal of Hydrology and Hydromechanics, 2020-06, Vol.68 (2), p.170-179
Ort / Verlag
Bratislava: Sciendo
Erscheinungsjahr
2020
Link zum Volltext
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
The main objective of the paper was to propose and evaluate the performance of a regional approach to estimate
values and to test the impact of different initial abstraction ratios. The curve number (
) was analyzed for five Slovak and five Polish catchments situated in the Carpathian Mountains. The L-moment based method of Hosking and Wallis and the ANOVA test were combined to delineate the area in two homogenous regions of catchments with similar
values. The optimization condition enabled the choice of the initial abstraction ratio, which provided the smallest discrepancy between the tabulated and estimated
s and the antecedent runoff conditions. The homogeneity in the
within the regions of four Slovak and four Polish catchments was revealed. Finally, the regional
was proposed to be at the 50% quantile of the regional theoretical distribution function estimated from all the
s in the region.
The approach is applied in a group of Slovak and Polish catchments with physiographic conditions representative for the Carpathian region. The main benefit of introducing a common regional
is the opportunity to apply this procedure in catchments of similar soil-physiographic characteristics and to verify the existing tabulated
The paper could give rise to an alternative way of estimating the
values in forested catchments and catchments with a lack of data or without observations.