scholarly journals Effects of hyporheic processes on streambed vertical hydraulic conductivity in three rivers of Nebraska

2007 ◽  
Vol 34 (7) ◽  
Author(s):  
Jinxi Song ◽  
Xunhong Chen ◽  
Cheng Cheng ◽  
Scott Summerside ◽  
Fujiang Wen
Keyword(s):  
Hydraulic Conductivity ◽  
Vertical Hydraulic Conductivity ◽  
Streambed Vertical Hydraulic Conductivity ◽  
Three Rivers

Effect of temperature on streambed vertical hydraulic conductivity

2013 ◽  
Vol 45 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Weihong Dong ◽  
Gengxin Ou ◽  
Xunhong Chen ◽  
Zhaowei Wang
Keyword(s):  
Hydraulic Conductivity ◽  
Water Temperature ◽  
Sediment Cores ◽  
Effect Of Temperature ◽  
In Situ Tests ◽  
Effect Of Water ◽  
Vertical Hydraulic Conductivity ◽  
Increasing Trend ◽  
Streambed Vertical Hydraulic Conductivity

In this study, in situ and on-site permeameter tests were conducted in Clear Creek, Nebraska, USA to evaluate the effect of water temperature on streambed vertical hydraulic conductivity Kv. Fifty-two sediment cores were tested. Five of them were transferred to the laboratory for a series of experiments to evaluate the effect of water temperature on Kv. Compared with in situ tests, 42 out of the 52 tests have higher Kv values for on-site tests. The distribution of water temperature at the approximately 50 cm depth of streambed along the sand bar was investigated in the field. These temperatures had values in the range 14–19 °C with an average of 16 °C and had an increasing trend along the stream flow. On average, Kv values of the streambed sediments in the laboratory tests increase by 1.8% per 1 °C increase in water temperature. The coarser sandy sediments show a greater increase extent of the Kv value per 1 °C increase in water temperature. However, there is no distinct increasing trend of Kv value for sediment containing silt and clay layers.

Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes

2018 ◽  
Vol 32 (19) ◽  
pp. 3006-3018 ◽  
Author(s):  
Jinxi Song ◽  
Liping Wang ◽  
Xinyi Dou ◽  
Fangjian Wang ◽  
Hongtao Guo ◽  
...  
Keyword(s):  
Hydraulic Conductivity ◽  
Flow Regimes ◽  
Regional Flow ◽  
Vertical Hydraulic Conductivity ◽  
Streambed Vertical Hydraulic Conductivity
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