Spatially telescoping measurements for improved characterization of ground water–surface water interactions

Kikuchi, C.; Ferré, T. P. A.; Welker, J. M.

doi:10.1016/j.jhydrol.2012.04.002

Cited by 20 publications

(25 citation statements)

References 32 publications

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“…In addition, tracer tests can be used to assess gross inflow (Bencala et al 2011;Bergstrom et al 2016). It is recommended to perform these measurements during baseflow (Cey et al 1998;Ruehl et al 2006;Kalbus et al 2006;Kikuchi et al 2012) to minimize the effect of surface runoff or interflow feeding the stream. In addition, shortterm temporal variability should be negligible as discharge measurements are usually taken consecutively.…”

Section: Differential Stream Gaugingmentioning

confidence: 99%

“…However, there is no uniform nomenclature. The approach has been termed ''longitudinal variation in discharge'' (Zellweger et al 1998), ''measurements of stream discharge along the reach'' (Cey et al 1998), ''seepage runs'' (Ruehl et al 2006), ''incremental stream flow'' (Kalbus et al 2006), ''differential flow gauging '' (McCallum et al 2012) or ''differential discharge measurements'' (Kikuchi et al 2012). Here the term ''differential stream gauging'' will be used.…”

Section: Differential Stream Gaugingmentioning

confidence: 99%

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Forensic hydrology: what function tells about structure in complex settings

et al. 2016

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Facing the challenges of the European Water Framework Directive and competing demands requires a sound knowledge of the hydrological system. This is a major challenge in regions like Northeast Germany. The landscape has been massively reshaped during repeated advances and retreats of glaciation during the Pleistocene. This resulted in a complex setting of unconsolidated sediments with high textural heterogeneity and with layered aquifer systems, partly confined, but usually of unknown number and extent of single aquifers. The Institute of Landscape Hydrology aims both at a better understanding of hydrological processes and at providing a basis for sustainable water resources management in this region. That would require sound information about the respective regions of interest that are rarely available at sufficient degree of detail. Thus, there is urgent need for alternative approaches. For example, time series of groundwater head, lake water level and stream runoff do not only depend on (unknown) geological structures, but in turn can reveal information about major geological features. To that end, different approaches have been developed and successfully applied at different scales, based both on advanced time series analysis and dimension reduction approaches and on well-known and rather simple methods. This approach has been coined ''forensic hydrology'': Like in a crime story, numerous pieces of evidence are combined in a systematic way to end up with a consistent conceptual model about the prevailing cause-effect relationships. An example is given for the Quillow catchment in Northeast Germany in a rather complex geological setting.

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Section: Differential Stream Gaugingmentioning

confidence: 99%

Section: Differential Stream Gaugingmentioning

confidence: 99%

Forensic hydrology: what function tells about structure in complex settings

et al. 2016

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“…After describing the modelling approaches at the two extreme spatial scales, we emphasise which hydrological parameters and variables have to be up and downscaled around the river and also for which models. Finally, integrating the telescopic approach of Kikuchi et al (2012) with the nested stream-aquifer interface concept, we develop the MIM (Measurements-Interpolation-Modelling) methodological framework for the design of multi-scale studies of stream-aquifer exchanges based on a more holistic view of the hydrosystem (Sect. 4).…”

Section: Introductionmentioning

confidence: 99%

Continental hydrosystem modelling: the concept of nested stream–aquifer interfaces

Flipo

Mouhri

Labarthe

et al. 2014

Hydrol. Earth Syst. Sci.

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Abstract. Coupled hydrological-hydrogeological models, emphasising the importance of the stream-aquifer interface, are more and more used in hydrological sciences for pluridisciplinary studies aiming at investigating environmental issues. Based on an extensive literature review, stream-aquifer interfaces are described at five different scales: local [10 cm- . This led us to develop the concept of nested stream-aquifer interfaces, which extends the well-known vision of nested groundwater pathways towards the surface, where the mixing of low frequency processes and high frequency processes coupled with the complexity of geomorphological features and heterogeneities creates hydrological spiralling. This conceptual framework allows the identification of a hierarchical order of the multi-scale control factors of stream-aquifer hydrological exchanges, from the larger scale to the finer scale. The hyporheic corridor, which couples the river to its 3-D hyporheic zone, is then identified as the key component for scaling hydrological processes occurring at the interface. The identification of the hyporheic corridor as the support of the hydrological processes scaling is an important step for the development of regional studies, which is one of the main concerns for water practitioners and resources managers.In a second part, the modelling of the stream-aquifer interface at various scales is investigated with the help of the conductance model. Although the usage of the temperature as a tracer of the flow is a robust method for the assessment of stream-aquifer exchanges at the local scale, there is a crucial need to develop innovative methodologies for assessing stream-aquifer exchanges at the regional scale. After formulating the conductance model at the regional and intermediate scales, we address this challenging issue with the development of an iterative modelling methodology, which ensures the consistency of stream-aquifer exchanges between the intermediate and regional scales.Finally, practical recommendations are provided for the study of the interface using the innovative methodology MIM (Measurements-Interpolation-Modelling), which is graphically developed, scaling in space the three pools of methods needed to fully understand stream-aquifer interfaces at various scales. In the MIM space, stream-aquifer interfaces that can be studied by a given approach are localised. The efficiency of the method is demonstrated with two examples. The first one proposes an upscaling framework, structured around river reaches of ∼ 10-100 m, from the local to the watershed scale. The second example highlights the usefulness of space borne data to improve the assessment of streamaquifer exchanges at the regional and continental scales. We conclude that further developments in modelling and field measurements have to be undertaken at the regional scale to enable a proper modelling of stream-aquifer exchanges from the local to the continental scale.

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“…These methods can be classified based on whether their measurements are spatially averaged (net change in flow and channel water balance) or from points (mini-piezometer, seepage meters, and temperature gradient). Comparative studies on some of these methods (Kikuchi et al 2012;Han and Endreny 2013;Crowley 2012;Mamer and Lowry 2013) indicate that each technique has its own spatial and temporal scales, assumptions, uncertainties, costs and limitations. Thus, a method selected for measuring hyporheic exchange flux (HEF) in the field should depend on the scale of interest -for example, tracer tests may be used at relatively large scale to obtain average values of hyporheic flux, while other methods such as temperature measurements and the use of piezometers to measure hydraulic head or to sample and analyze hyporheic zone water chemistry, are used for point estimates of HEF.…”

Section: Introductionmentioning

confidence: 99%

“…Hyporheic exchange is substantially heterogeneous in most lakes, wetlands, streams, rivers, and estuaries, and many studies have addressed and quantified spatial heterogeneity of HEF, primarily to scale the flux measured on the order of square meters to a river reach, shoreline segment or an entire lake (Fanelli and Lautz 2008;Keery et al 2007;Kikuchi et al 2012;Sawyer et al 2012). In addition, the spatial heterogeneity of hyporheic exchange has been analyzed via numerical modeling (Cardenas 2009;Trauth et al 2013;Peyrard et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Heat tracing to determine spatial patterns of hyporheic exchange across a river transect

Chen

Zhang

et al. 2017

Hydrogeol J

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Significant spatial variability of water fluxes may exist at the water-sediment interface in river channels and has great influence on a variety of water issues. Understanding the complicated flow systems controlling the flux exchanges along an entire river is often limited due to averaging of parameters or the small number of discrete point measurements usually used. This study investigated the spatial pattern of the hyporheic flux exchange across a river transect in China, using the heat tracing approach. This was done with measurements of temperature at high spatial resolution during a 64-h monitoring period and using the data to identify the spatial pattern of the hyporheic exchange flux with the aid of a one-dimensional conduction-advection-dispersion model (VFLUX). The threshold of neutral exchange was considered as 126 L m −2 d −1 in this study and the heat tracing results showed that the change patterns of vertical hyporheic flux varied with buried depth along the river transect; however, the hyporheic flux was not simply controlled by the streambed hydraulic conductivity and water depth in the river transect. Also, lateral flow dominated the hyporheic process within the shallow high-permeability streambed, while the vertical flow was dominant in the deep low-permeability streambed. The spatial pattern of hyporheic exchange across the river transect was naturally controlled by the heterogeneity of the streambed and the bedform of the stream cross-section. Consequently, a two-dimensional conceptual illustration of the hyporheic process across the river transect is proposed, which could be applicable to river transects of similar conditions.

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Spatially telescoping measurements for improved characterization of ground water–surface water interactions

Cited by 20 publications

References 32 publications

Forensic hydrology: what function tells about structure in complex settings

Forensic hydrology: what function tells about structure in complex settings

Continental hydrosystem modelling: the concept of nested stream–aquifer interfaces

Heat tracing to determine spatial patterns of hyporheic exchange across a river transect

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