scholarly journals Effects of projected climate on the hydrodynamic and sediment transport regime of the lower Athabasca River in Alberta, Canada

2018 ◽  
Vol 34 (5) ◽  
pp. 417-429 ◽  
Author(s):  
Y. Dibike ◽  
A. Shakibaeinia ◽  
H.-Il Eum ◽  
T. Prowse ◽  
I. Droppo
2018 ◽  
Author(s):  
Tian Zhao ◽  
Qian Yu ◽  
Yunwei Wang ◽  
Shu Gao

Abstract. Being a widespread source-to-sink sedimentary environment, the fine-grained dispersal system (FGDS) features remarkably high sediment flux, interacting closely with local morphology and ecosystem. Such exceptional transport is believed to be associated with changes in bedform geometry, which further demands theoretical interpretation. Using van Rijn (2007a) bed roughness predictor, we set up a simple numerical model to calculate sediment transport, classify sediment transport behaviors into dune and (mega-)ripple dominant regimes, and discuss the causes of the sediment transport regime shift linked with bedform categories. Both regimes show internally consistent transport behaviors, and the latter, associated with FGDSs, exhibits considerably higher sediment transport rate than the previous. Between lies the coexistence zone, the sediment transport regime shift accompanied by degeneration of dune roughness, which can considerably reinforce sediment transport and is further highlighted under greater water depth. This study can be applied to modeling of sediment transport and morphodynamics.


2008 ◽  
Vol 49 (2) ◽  
pp. 325-345 ◽  
Author(s):  
N. P. Kurian ◽  
K. Rajith ◽  
T. S. Shahul Hameed ◽  
L. Sheela Nair ◽  
M. V. Ramana Murthy ◽  
...  

2020 ◽  
Vol 698 ◽  
pp. 134261 ◽  
Author(s):  
Pengcheng Sun ◽  
Yiping Wu ◽  
Jianen Gao ◽  
Yingying Yao ◽  
Fubo Zhao ◽  
...  

CATENA ◽  
2021 ◽  
Vol 196 ◽  
pp. 104865 ◽  
Author(s):  
Josep Fortesa ◽  
Giovanni Francesco Ricci ◽  
Julián García-Comendador ◽  
Francesco Gentile ◽  
Joan Estrany ◽  
...  

CATENA ◽  
2021 ◽  
Vol 198 ◽  
pp. 105050
Author(s):  
Josep Fortesa ◽  
Giovanni Francesco Ricci ◽  
Julián García-Comendador ◽  
Francesco Gentile ◽  
Joan Estrany ◽  
...  

Geology ◽  
2013 ◽  
Vol 41 (12) ◽  
pp. 1223-1226 ◽  
Author(s):  
Michelle Y.-F. Huang ◽  
David R. Montgomery

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