Physics-based hydrologic-response simulation: foundation for hydroecology and hydrogeomorphology

Loague, Keith; Heppner, Christopher S.; Mirus, Benjamin B.; Ebel, Brian A.; Ran, Qihua; Carr, Adrianne E.; BeVille, Susan H.; VanderKwaak, Joel E.

doi:10.1002/hyp.6179

Cited by 70 publications

(57 citation statements)

References 17 publications

(1 reference statement)

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“…Loague et al 2006), have received wide attention and significant progress has been made with their development in recent years (Gaukroger and Werner 2011;Maxwell et al 2014). The software packages mentioned most often in the literature include ParFlow (Kollet and Maxwell 2006), HydroGeoSphere (Therrien et al 2009), InHM (VanderKwaak 1999, and OpenGeoSys ).…”

Section: Fully Coupled Schemesmentioning

confidence: 99%

Groundwater and Surface Water Interaction at the Regional-scale – A Review with Focus on Regional Integrated Models

Barthel

Banzhaf

2015

Water Resour Manage

200

124

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Scientists and practitioners agree that integrated water resource management is necessary, with an increasing need for research at the regional scale (10 3 to 10 5 km 2 ). At this scale interactions between environmental and human systems are fully developed and global change is linked to local actions. The groundwater-surface water interaction (GW-SW) is of particular interest. Herein we review the scientific journal literature and examine GW-SW at the regional scale. We briefly review all existing literature on GW-SW, then summarise its characteristics at different scales and identify specific challenges of the regional scale. We explore whether GW-SW should be treated differently at regional and local scales. Regional GW-SW is rarely examined in experimental field studies, which almost exclusively cover small areas. However, GW-SW is often integral to large scale coupled models. Thus, we collate information about existing models and their regional applications. Fully coupled, physics-based models have great potential to meet the technical challenges. However, limited data availability hampers the application of complex models at the regional scale and loosely coupled schemes are more widely applied. Many integrated modelling concepts have been published, but none have been applied in a wide range of settings. Thus, it is impossible to compare the performance of different approaches. Comparative analyses of existing regional scale integrated models in the context of different data availability and geographic conditions are needed. Unfortunately, peer-reviewed journal literature no longer provides a representative picture of the subject as models are becoming Btoo big to be published^or too pragmatic.

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Section: Fully Coupled Schemesmentioning

confidence: 99%

Groundwater and Surface Water Interaction at the Regional-scale – A Review with Focus on Regional Integrated Models

Barthel

Banzhaf

2015

Water Resour Manage

200

124

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“…The understood goal of such models is to a priori predict surface and subsurface flows to stream channels as a result of rainfall and eventually snow-melt events with minimal pre-calibration. For example, one of the more widely tested, or calibrated physically-based watershed model is the "integrated watershed model", InHM, proposed by Loague et al [45]. This model is fundamentally based on the soil properties of the watershed as controlled by an arbitrarily thin surface-subsurface exchange layer.…”

Section: Summary and Conclusion-impacts On Watershed Modeling Effortsmentioning

confidence: 99%

Surface Runoff in Watershed Modeling—Turbulent or Laminar Flows?

Grismer¹

2016

Hydrology

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Determination of overland sheet flow depths, velocities and celerities across the hillslope in watershed modeling is important towards estimation of surface storage, travel times to streams and soil detachment rates. It requires careful characterization of the flow processes. Similarly, determination of the temporal variation of hillslope-riparian-stream hydrologic connectivity requires estimation of the shallow subsurface soil hydraulic conductivity and soil-water retention (i.e., drainable porosities) parameters. Field rainfall and runoff simulation studies provide considerable information and insight into these processes; in particular, that sheet flows are likely laminar and that shallow hydraulic conductivities and storage can be determined from the plot studies. Here, using a 1 m by 2 m long runoff simulation flume, we found that for overland flow rates per unit width of roughly 30-60 mm 2 /s and bedslopes of 10%-66% with varying sand roughness depths that all flow depths were predicted by laminar flow equations alone and that equivalent Manning's n values were depth dependent and quite small relative to those used in watershed modeling studies. Even for overland flow rates greater than those typically measured or modeled and using Manning's n values of 0.30-0.35, often assumed in physical watershed model applications for relatively smooth surface conditions, the laminar flow velocities were 4-5 times greater, while the laminar flow depths were 4-5 times smaller. This observation suggests that travel times, surface storage volumes and surface shear stresses associated with erosion across the landscape would be poorly predicted using turbulent flow assumptions. Filling the flume with fine sand and conducting runoff studies, we were unable to produce sheet flow, but found that subsurface flows were onflow rate, soil depth and slope dependent and drainable porosities were only soil depth and slope dependent. Moreover, both the sand hydraulic conductivity and drainable porosities could be readily determined from measured capillary pressure displacement pressure head and assumption of pore-size distributions (i.e., Brooks-Corey lambda values of 2-3).

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“…The general objective in preparing this short communication was to further discuss and demonstrate the utility of hydrologic-response simulation for effectively examining field observations and, in certain situations, for making queries beyond the measured data (also see Loague and VanderKwaak, 2004;Ebel and Loague, 2006;Loague et al, 2006). The specific objective of this effort was to further assess the type of hydrologic-response data needed to rigorously test or evaluate both physics-based models and the theories upon which these models are based.…”

Section: Introductionmentioning

confidence: 98%

Rapid simulated hydrologic response within the variably saturated near surface

Ebel

Loague

2007

Hydrological Processes

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Column and field experiments have shown that the hydrologic response to increases in rainfall rates can be more rapid than expected from simple estimates. Physics-based hydrologic response simulation, with the Integrated Hydrology Model (InHM), is used here to investigate rapid hydrologic response, within the variably saturated near surface, to temporal variations in applied flux at the surface boundary. The factors controlling the speed of wetting front propagation are discussed within the Darcy-Buckingham conceptual framework, including kinematic wave approximations. The Coos Bay boundary-value problem is employed to examine simulated discharge, pressure head, and saturation responses to a large increase in applied surface flux. The results presented here suggest that physics-based simulations are capable of representing rapid hydrologic response within the variably saturated near surface. The new InHM simulations indicate that the temporal discretization and measurement precision needed to capture the rapid subsurface response to a spike increase in surface flux, necessary for both data-based analyses and evaluation of physics-based models, are smaller than the capabilities of the instrumentation deployed at the Coos Bay experimental catchment.

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Physics-based hydrologic-response simulation: foundation for hydroecology and hydrogeomorphology

Cited by 70 publications

References 17 publications

Groundwater and Surface Water Interaction at the Regional-scale – A Review with Focus on Regional Integrated Models

Groundwater and Surface Water Interaction at the Regional-scale – A Review with Focus on Regional Integrated Models

Surface Runoff in Watershed Modeling—Turbulent or Laminar Flows?

Rapid simulated hydrologic response within the variably saturated near surface

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