Volume 9, Issue 2 (2006)
MJSP 2006, 9(2): 1-18 |
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Rezai Moghadam M H, -- -. Geomorphic Impacts of Flooding in Rais Kola Watershed (North Alborz). MJSP 2006; 9 (2) :1-18
URL: http://hsmsp.modares.ac.ir/article-21-1-en.html
URL: http://hsmsp.modares.ac.ir/article-21-1-en.html
1- Tabriz University, Tabriz, Iran.
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Abstract: (6522 Views)
Using of geomorphological flood studies including the recent advances in paleoflood hydrology are needed as a complement to conventional hydrological approaches. The factors effective on the Rais Kola watershed floods are divided into two categories: 1) drainage basin factors 2) river channel factors that are affected by lithology and tectonic and have played an important role on landform formation. To estimate the discharge through, paleostage indicator (PSI) and botanical methods several cross-sections of the studied channels on different reaches were used. Shear stress and stream power were estimated on the different reaches using HEC-RAS software. Then erosional effects and depositional forms generated by flood were investigated. The results showed that using paleostage and flow-competence could illustrate magnitude of flood in steep and small mountain rivers. The correct identification of flow processes is essential for proper design and accurate delineation of hazard zones.
Received: 2004/11/6 | Accepted: 2005/02/27 | Published: 2010/04/21
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