Reach-scale channel geometry of a mountain river

2004 ◽  
Vol 29 (8) ◽  
pp. 969-981 ◽  
Author(s):  
Ellen Wohl ◽  
Jessica N. Kuzma ◽  
Nancy E. Brown
Keyword(s):  
Mountain River ◽  
Channel Geometry

scholarly journals Insights on the Impacts of Hydroclimatic Extremes and Anthropogenic Activities on Sediment Yield of a River Basin

Earth ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 32-50
Author(s):  
Rocky Talchabhadel ◽  
Jeeban Panthi ◽  
Sanjib Sharma ◽  
Ganesh R. Ghimire ◽  
Rupesh Baniya ◽  
...  
Keyword(s):  
Suspended Sediment ◽  
River Basin ◽  
Extreme Precipitation ◽  
Suspended Sediment Concentration ◽  
Anthropogenic Activities ◽  
Sediment Concentration ◽  
Sediment Flux ◽  
Mountain River ◽  
Ecological Processes ◽  
Precipitation Indices

Streamflow and sediment flux variations in a mountain river basin directly affect the downstream biodiversity and ecological processes. Precipitation is expected to be one of the main drivers of these variations in the Himalayas. However, such relations have not been explored for the mountain river basin, Nepal. This paper explores the variation in streamflow and sediment flux from 2006 to 2019 in central Nepal’s Kali Gandaki River basin and correlates them to precipitation indices computed from 77 stations across the basin. Nine precipitation indices and four other ratio-based indices are used for comparison. Percentage contributions of maximum 1-day, consecutive 3-day, 5-day and 7-day precipitation to the annual precipitation provide information on the severity of precipitation extremeness. We found that maximum suspended sediment concentration had a significant positive correlation with the maximum consecutive 3-day precipitation. In contrast, average suspended sediment concentration had significant positive correlations with all ratio-based precipitation indices. The existing sediment erosion trend, driven by the amount, intensity, and frequency of extreme precipitation, demands urgency in sediment source management on the Nepal Himalaya’s mountain slopes. The increment in extreme sediment transports partially resulted from anthropogenic interventions, especially landslides triggered by poorly-constructed roads, and the changing nature of extreme precipitation driven by climate variability.

Channel Geometry Scaling Effect in Printed Inorganic Electrolyte-Gated Transistors

2021 ◽  
pp. 1-6
Author(s):  
Farhan Rasheed ◽  
Manuel Rommel ◽  
Gabriel Cadilha Marques ◽  
Wolfgang Wenzel ◽  
Mehdi B. Tahoori ◽  
...  
Keyword(s):  
Scaling Effect ◽  
Channel Geometry ◽  
Inorganic Electrolyte

Impact of inlet channel geometry on microfluidic drop formation

2009 ◽  
Vol 80 (2) ◽  
Author(s):  
A. R. Abate ◽  
A. Poitzsch ◽  
Y. Hwang ◽  
J. Lee ◽  
J. Czerwinska ◽  
...  
Keyword(s):  
Drop Formation ◽  
Inlet Channel ◽  
Channel Geometry

scholarly journals Effects of channel geometry on buoyancy-driven mixing

2008 ◽  
Vol 20 (5) ◽  
pp. 053306 ◽  
Author(s):  
Yannick Hallez ◽  
Jacques Magnaudet
Keyword(s):  
Channel Geometry
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