Development of Low Flow Duration-Frequency Curves by Hybrid Frequency Analysis

Selen Orta; Hafzullah Aksoy

doi:10.1007/s11269-022-03095-3

Development of Low Flow Duration-Frequency Curves by Hybrid Frequency Analysis

Selen Orta
, Hafzullah Aksoy^*

^*Bu çalışma için yazışmadan sorumlu yazar

İnşaat Mühendisliği Bölümü

Istanbul Ayvansaray University
Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

5 Atıf (Scopus)

Özet

In this study, duration-frequency curves were developed for D = 1, 7, 14, 30, 90 and 273-day low flows corresponding to the 2, 5, 10, 25, 50 and 100-year return periods. For this, daily data acquired from streamflow gauging stations with minimized anthropogenic effects were used. A hybrid frequency analysis coupled with the total probability theorem was applied on D-day low sequences to accommodate zero values. Among the tested probability distribution functions, Generalized Extreme Value was found the best in fitting low flows for majority of cases. Low flow discharge increases with increasing duration while it decreases with increasing return period for a given duration. Low flow duration-frequency curves can be considered one among significant tools to be used by the hydrological community in water resources planning and management.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	1521-1534
Sayfa sayısı	14
Dergi	Water Resources Management
Hacim	36
Basın numarası	5
DOI'lar	https://doi.org/10.1007/s11269-022-03095-3
Yayın durumu	Yayınlandı - Mar 2022

Bibliyografik not

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature B.V.

Finansman

This research study is based on the MSc thesis of the first author under supervision of the second. The research leading these study was inspired from the project entitled Low Flow and Drought Analysis in Hydrological Watersheds financially supported by the National Union of Geodesy and Geophysics of Turkey under Grant Agreement No. TUJJB-TUMEHAP-2015-01.

Finansörler	Finansör numarası
National Union of Geodesy and Geophysics of Turkey	TUJJB-TUMEHAP-2015-01

BM SKH

Bu sonuç, aşağıdaki Sürdürülebilir Kalkınma Hedefine/Hedeflerine katkıda bulunur

SKH 6 Temiz Su ve Sanitasyon

Belgeye Erişim

10.1007/s11269-022-03095-3

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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keywords = "Frequency analysis, Gediz River Basin, Low flow, Low flow duration-frequency curve, Total probability theorem",

author = "Selen Orta and Hafzullah Aksoy",

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doi = "10.1007/s11269-022-03095-3",

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AB - In this study, duration-frequency curves were developed for D = 1, 7, 14, 30, 90 and 273-day low flows corresponding to the 2, 5, 10, 25, 50 and 100-year return periods. For this, daily data acquired from streamflow gauging stations with minimized anthropogenic effects were used. A hybrid frequency analysis coupled with the total probability theorem was applied on D-day low sequences to accommodate zero values. Among the tested probability distribution functions, Generalized Extreme Value was found the best in fitting low flows for majority of cases. Low flow discharge increases with increasing duration while it decreases with increasing return period for a given duration. Low flow duration-frequency curves can be considered one among significant tools to be used by the hydrological community in water resources planning and management.

KW - Frequency analysis

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