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Vol 16, Issue 1, 2024
Pages: 386 - 399
Research paper
Civil Engineering Editor: Ognjen Mijatović
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Published: 12.06.2024. Research paper Civil Engineering Editor: Ognjen Mijatović

REGIONALIZATION OF CATCHMENTS BASED ON SILHOUETTE WIDTHS FOR FLOOD RESPONSE ESTIMATION ACROSS SERBIA

By
Borislava Blagojević Orcid logo ,
Borislava Blagojević
Contact Borislava Blagojević

Faculty of Civil Engineering and Architecture, University of Nis, Niš, Serbia

Ajla Mulaomerović-Šeta Orcid logo ,
Ajla Mulaomerović-Šeta

Faculty of Civil Engineering, University of Sarajevo, Sarajevo, Bosnia and Herzegovina

Vladislava Mihailović Orcid logo ,
Vladislava Mihailović

Faculty of Forestry, University of Belgrade, Belgrade, Serbia

Andrea Petroselli Orcid logo
Andrea Petroselli

Tuscia University, Viterbo, Italy

Abstract

Regional analysis is often used for flood quantile estimation in ungauged catchments. The regionalization procedure has two phases: the formation of homogeneous regions and flood quantile estimation. The presented research results consider the first phase of the regional analysis for 41 catchments in Serbia. The catchment similarity attributes are catchment area and catchment mean elevation. The number of formed regions and the number of stations within the regions are determined by maximising the mean silhouette width of the region. Regions were first obtained by cluster analysis and then adjusted to comprise catchments with a positive silhouette width. For the three formed regions, homogeneity was checked by the Gini index - GI.

Funding Statement

This research was partially funded by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia, grant numbers 451-03-65/2024-03/ 200095, and 451-03-65/2024-03/ 200169

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