scholarly journals Effects of Flaming Gorge Dam hydropower operations on downstream flow, stage, and sediment transport

1996 ◽  
Author(s):  
S.C.L. Yin ◽  
D. Tomasko ◽  
H.E. Cho ◽  
G. Williams ◽  
J. McCoy ◽  
...  
2017 ◽  
Vol 10 (2) ◽  
pp. 360-372 ◽  
Author(s):  
C. Melisa Kaya ◽  
Gokmen Tayfur ◽  
Oguz Gungor

Abstract Flow hydrographs are one of the most important key elements for flood modelling. They are recorded as time series; however, they are not available in most developing countries due to lack of gauged stations. This study presents a flood modelling method for rivers having no upstream gauged stations. The modelling procedure involves three steps: (1) predicting upstream hydrograph by the reverse flood routing method which requires information about channel geometric characteristics, downstream flow stage and downstream flow hydrographs; (2) modelling flood wave spreading using HEC-RAS. The hydrograph predicted by the reverse flood routing in the first step becomes an inflow for the HEC-RAS model; (3) delineating the flood-risk areas by overlapping the Geographical Information System (GIS)-based flood maps produced by the HEC-RAS to the related orthophoto images. The developed model is applied to Guneysu Basin in Rize Province in Eastern Black Sea Region of Turkey. The model-produced flood map is compared to the observed one with success.


2017 ◽  
Vol 43 ◽  
pp. 57-63 ◽  
Author(s):  
Monica Papini ◽  
Vladislav Ivov Ivanov ◽  
Davide Brambilla ◽  
Diego Arosio ◽  
Laura Longoni

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