A New Empirical Approach to Calculating Flood Frequency in Ungauged Catchments: A Case Study of the Upper Vistula Basin, Poland

Dariusz Młyński , Andrzej Wałęga , Tomasz Stachura , Grzegorz Kaczor

Abstract

The aim of the work was to develop a new empirical model for calculating the peak annual flows of a given frequency of occurrence (QT) in the ungauged catchments of the upper Vistula basin in Poland. The approach to the regionalization of the catchment and the selection of the optimal form of the empirical model are indicated as a novelty of the proposed research. The research was carried out on the basis of observation series of peak annual flows (Qmax) for 41 catchments. The analysis was performed in the following steps: statistical verification of data; estimation of Qmax flows using kernel density estimation; determination of physiographic and meteorological characteristics affecting the Qmax flow volume; determination of the value of dimensionless quantiles for QT flow calculation in the upper Vistula basin; verification of the determined correlation for the calculation of QT flows in the upper Vistula basin. Based on the research we conducted, we found that the following factors have the greatest impact on the formation of flood flows in the upper Vistula basin: the size of catchment area; the height difference in the catchment area; the density of the river network; the soil imperviousness index; and the volume of normal annual precipitation. The verification procedure that we performed made it possible to conclude that the developed empirical model functions correctly.
Author Dariusz Młyński (FoEEaLS / DoSEaWM)
Dariusz Młyński,,
- Department of Sanitary Engineering and Water Management
, Andrzej Wałęga (FoEEaLS / DoSEaWM)
Andrzej Wałęga,,
- Department of Sanitary Engineering and Water Management
, Tomasz Stachura (FoEEaLS / DoLRaED)
Tomasz Stachura,,
- Department of Land Reclamation and Environmental Development
, Grzegorz Kaczor (FoEEaLS / DoSEaWM)
Grzegorz Kaczor,,
- Department of Sanitary Engineering and Water Management
Journal seriesWater, [Water (Switzerland)], ISSN 2073-4441, (N/A 70 pkt)
Issue year2019
Vol11
No3
Pages1-21
Publication size in sheets1
Article number601
Keywords in Englishempirical model; catchment descriptors; flood frequency; ungauged catchments
ASJC Classification1104 Aquatic Science; 1303 Biochemistry; 3305 Geography, Planning and Development; 2312 Water Science and Technology
DOIDOI:10.3390/w11030601
URL https://www.mdpi.com/2073-4441/11/3/601
Internal identifierWIŚIG/2019/28
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
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A New Empirical Approach to Calculating Flood Frequency in Ungauged Catchments: A Case Study of the Upper Vistula Basin, Poland of 17-04-2019
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A New Empirical Approach to Calculating Flood Frequency in Ungauged Catchments: A Case Study of the Upper Vistula Basin, Poland
Score (nominal)70
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.007; WoS Impact Factor: 2018 = 2.524 (2) - 2018=2.721 (5)
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