Estimation of peak runoff and frequency in an ungauged stream of a forested watershed for flood hazard mapping
Yükleniyor...
Dosyalar
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Northeast Forestry Univ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Kaynasli District in the western Black Sea region of Turkey has long been vulnerable to frequent flood damage due to the establishment of settlements within and around stream channels without regard to fluctuating peak-streamflow frequencies. The aim of this research was to determine the measures needed to protect the towns and villages from this type of damage. Daily total precipitation data for 1975-2010 were analysed, and rainfall-runoff models developed to estimate the potential yearly maximum discharge from each stream of sub-watersheds dominated by forests and/or agriculture. This was then calculated for different frequencies of the yearly maximum discharge. Flood analysis and mapping was modified via the one-dimensional Hydrologic Engineering Centers-River Analysis System software to produce potential maximum discharge and geometric data for Kaynasli Creek. As the main creek of the sub-watershed, its cross-section was shown to be insufficient and incapable of containing the maximum discharge at the 100-year frequency presumed for the watershed, and subsequently was seen as having a high level of casualty risk. It was concluded that the one dimensional model could be useful, but 2D models were more suitable for these types of watersheds.
Açıklama
WOS: 000460003900018
Anahtar Kelimeler
Flood frequency analysis, Floodplain mapping, Flow simulation, Hydrologic Engineering Centers-River Analysis System (HEC-RAS), Soil Conservation Service Curve Number (SCS-CN)
Kaynak
Journal Of Forestry Research
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
30
Sayı
2
