scholarly journals Vertical surface water-groundwater exchange processes within a headwater floodplain induced by experimental floods

2016 ◽  
Vol 30 (21) ◽  
pp. 3770-3787 ◽  
Author(s):  
Erich T. Hester ◽  
Christopher R. Guth ◽  
Durelle T. Scott ◽  
Charles N. Jones
Keyword(s):  
Surface Water ◽  
Vertical Surface ◽  
Exchange Processes ◽  
Groundwater Exchange

Impact of Didymosphenia geminata on hyporheic conditions in trout redds: reason for concern?

2008 ◽  
Vol 59 (11) ◽  
pp. 1028 ◽  
Author(s):  
Tobias O. Bickel ◽  
Gerard P. Closs
Keyword(s):  
New Zealand ◽  
Surface Water ◽  
Water Exchange ◽  
Potential Surface ◽  
Didymosphenia Geminata ◽  
Exchange Processes ◽  
Significant Difference ◽  
Hydraulic Conditions ◽  
Groundwater Exchange ◽  
The Impact

Didymosphenia geminata (Lyngbye) Schmidt (commonly called didymo) is an invasive diatom and of concern to fisheries managers in North America and more recently New Zealand. Didymo grows in thick mats in several river systems on the South Island of New Zealand, often smothering entire river beds. Salmonid eggs, deposited in gravel nests (redds), depend on constant water exchange across the riverbed to provide oxygen-rich water for development. Thick didymo mats might restrict the flow of oxygen-rich water into spawning gravels, resulting in increased egg mortality and reduced trout recruitment. The present study measured hyporheic hydraulic conditions in trout redds with varying didymo cover in the Clutha River catchment, South Island, New Zealand. Didymo cover had no significant effects on several hydraulic variables (flow into the substrate, hydraulic conductivity and hyporheic oxygen concentration). However, there was a significant difference in the potential surface water–groundwater exchange between sites, suggesting some effect of didymo on hydraulic conditions. Considering the limited number of replicates, the impact of didymo on trout redds in the Clutha River cannot be excluded. The present study highlights the need for further research on the possible effects of didymo on important surface water–groundwater exchange processes.

Variation in surface water–groundwater exchange with land use in an urban stream

2010 ◽  
Vol 392 (1-2) ◽  
pp. 1-11 ◽  
Author(s):  
Robert J. Ryan ◽  
Claire Welty ◽  
Philip C. Larson
Keyword(s):  
Land Use ◽  
Surface Water ◽  
Urban Stream ◽  
Groundwater Exchange

scholarly journals Insight into the influence of local streambed heterogeneity on hyporheic-zone flow characteristics

2020 ◽  
Vol 28 (8) ◽  
pp. 2697-2712
Author(s):  
Robert Earon ◽  
Joakim Riml ◽  
Liwen Wu ◽  
Bo Olofsson
Keyword(s):  
Surface Water ◽  
Hydraulic Conductivity ◽  
Penetration Depth ◽  
Hyporheic Zone ◽  
Flow Characteristics ◽  
Time Lapse ◽  
Hyporheic Exchange ◽  
Tracer Injection ◽  
Hyporheic Flow ◽  
Exchange Processes

AbstractInteraction between surface water and groundwater plays a fundamental role in influencing aquatic chemistry, where hyporheic exchange processes, distribution of flow paths and residence times within the hyporheic zone will influence the transport of mass and energy in the surface-water/groundwater system. Geomorphological conditions greatly influence hyporheic exchange, and heterogeneities such as rocks and clay lenses will be a key factor for delineating the hyporheic zone. Electrical resistivity tomography (ERT) and ground-penetrating radar (GPR) were used to investigate the streambed along a 6.3-m-long reach in order to characterise geological layering and distinct features which may influence parameters such as hydraulic conductivity. Time-lapse ERT measurements taken during a tracer injection demonstrated that geological features at the meter-scale played a determining role for the hyporheic flow field. The penetration depth of the tracer into the streambed sediment displayed a variable spatial pattern in areas where the presence of highly resistive anomalies was detected. In areas with more homogeneous sediments, the penetration depth was much more uniformly distributed than observed in more heterogeneous sections, demonstrating that ERT can play a vital role in identifying critical hydraulic features that may influence hyporheic exchange processes. Reciprocal ERT measurements linked variability and thus uncertainty in the modelled resistivity to the spatial locations, which also demonstrated larger variability in the tracer penetration depth, likely due to local heterogeneity in the hydraulic conductivity field.

scholarly journals Dynamic response of surface water-groundwater exchange to currents, tides, and waves in a shallow estuary

2013 ◽  
Vol 118 (4) ◽  
pp. 1749-1758 ◽  
Author(s):  
Audrey H. Sawyer ◽  
Fengyan Shi ◽  
James T. Kirby ◽  
Holly A. Michael
Keyword(s):  
Surface Water ◽  
Dynamic Response ◽  
Shallow Estuary ◽  
Groundwater Exchange

scholarly journals Measuring methods for groundwater – surface water interactions: a review

2006 ◽  
Vol 10 (6) ◽  
pp. 873-887 ◽  
Author(s):  
E. Kalbus ◽  
F. Reinstorf ◽  
M. Schirmer
Keyword(s):  
Surface Water ◽  
Surface Waters ◽  
River Basin Management ◽  
Riparian Ecosystems ◽  
Major Research ◽  
Basin Management ◽  
Spatial And Temporal Scales ◽  
Measuring Methods ◽  
Multi Scale ◽  
Exchange Processes

Abstract. Interactions between groundwater and surface water play a fundamental role in the functioning of riparian ecosystems. In the context of sustainable river basin management it is crucial to understand and quantify exchange processes between groundwater and surface water. Numerous well-known methods exist for parameter estimation and process identification in aquifers and surface waters. Only in recent years has the transition zone become a subject of major research interest; thus, the need has evolved for appropriate methods applicable in this zone. This article provides an overview of the methods that are currently applied and described in the literature for estimating fluxes at the groundwater – surface water interface. Considerations for choosing appropriate methods are given including spatial and temporal scales, uncertainties, and limitations in application. It is concluded that a multi-scale approach combining multiple measuring methods may considerably constrain estimates of fluxes between groundwater and surface water.

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