The Role of Basin Morphometric Features in Flood Output: A Case Study of the Biga River Basin


UTLU M., ÖZDEMİR H.

Journal of Geography, no.36, pp.49-62, 2018 (ESCI) identifier

  • Publication Type: Article / Article
  • Publication Date: 2018
  • Doi Number: 10.26650/jgeog408101
  • Journal Name: Journal of Geography
  • Journal Indexes: Emerging Sources Citation Index (ESCI), TR DİZİN (ULAKBİM)
  • Page Numbers: pp.49-62
  • Keywords: Basin morphometry, digital elevation models, Biga River basin, DIGITAL ELEVATION DATA, DRAINAGE NETWORKS, EVOLUTION, CLIMATE
  • Bursa Uludag University Affiliated: Yes

Abstract

This study aims to investigate the causes behind the constant flooding in the Biga River basin. It aims to determine if the river sub-basins's morphometric features was the reason behind the floods. Historical data from previous floodings were used to create the linear (one-dimensional), areal (two-dimensional), and relief (three-dimensional) morphometric properties of the sub-basins. These parameters were then evaluated quantitatively and a Digital Elevation Model (DEM) with 10 m resolution produced from 1:25000 scale topography maps as the base data. The D8 flow and Strahler methods were alos used as part of this study.The values obtained from the sub-basins of the Biga River were then weight and the potential to generate floods on the main stream of the sub-basins were evaluated. Our final conclusion indicates that the Biga sub-basin has indeed a major effect on flooding of the main channel of the Biga River.