Water Resources Research
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Impact of variable reservoir releases on management of downstream water temperaturesA coupled unsteady flow and heat transport model is used to determine the impacts of fluctuating reservoir releases on downstream water temperatures. Maintenance of stream temperatures is one of the most common reasons cited for imposition of minimum flow requirements in regulated (reservoir controlled) rivers. Minimum flow constraints for temperature control are typically developed using ... ...
Water Resources Research - Tập 37 Số 6 - Trang 1733-1743 - 2001
Riverbed Temperature and Heat Transport in a Hydropeaked RiverAbstract Hydropeaking, the alternating storage and release of water from reservoirs for hydropower generation, perturbs the thermal regime of many large rivers. While its effects on river temperature have been long studied, impacts on the thermal regime of riverbeds remain mostly unknown, despite riverbed temperature affecting rates of nutrient cycling and habitat s... ...
Water Resources Research - Tập 57 Số 4 - 2021
The effect of flooding on mental health: Lessons learned for building resilienceAbstract Risk management and climate adaptation literature focuses mainly on reducing the impacts of, exposure to, and vulnerability to extreme events such as floods and droughts. Posttraumatic stress disorder is one of the most important impacts related to these events, but also a relatively under‐researched topic outside original psychopathological contexts. We co... ...
Water Resources Research - Tập 53 Số 7 - Trang 5831-5844 - 2017
Self‐organizing linear output map (SOLO): An artificial neural network suitable for hydrologic modeling and analysisArtificial neural networks (ANNs) can be useful in the prediction of hydrologic variables, such as streamflow, particularly when the underlying processes have complex nonlinear interrelationships. However, conventional ANN structures suffer from network training issues that significantly limit their widespread application. This paper presents a multivariate ANN procedure entitled self‐orga... ...
Water Resources Research - Tập 38 Số 12 - 2002
Mixing‐induced precipitation: Experimental study and multiscale numerical analysisLaboratory experiments, pore‐scale simulations, and continuum (Darcy) ‐scale simulations were used to study mixing‐induced precipitation in porous media. In the experimental investigation, solutions containing Na2 CO3 and CaCl2 were each injected in different halves of a quasi two‐dimensional flow cell filled with quartz sand. A... ...
Water Resources Research - Tập 44 Số 6 - 2008
Evolution of hydraulic conductivity by precipitation and dissolution in carbonate rockThe evolution of hydraulic conductivity and flow patterns, controlled by simultaneous precipitation and dissolution in porous rocks, was examined in a series of laboratory experiments. Linear flow experiments were performed in columns of crushed calcareous sandstone by injecting different concentrations of HCl/H2 SO4 mixtures at various flow rates. ... ...
Water Resources Research - Tập 39 Số 1 - 2003
Building conceptual models of field‐scale uranium reactive transport in a dynamic vadose zone‐aquifer‐river systemSubsurface simulation is used to build, test, and couple conceptual process models to better understand the persistence of uranium concentrations above federal drinking water standards in a 0.4 km by 1.0 km groundwater plume beneath the 300 Area of the U.S. Department of Energy's Hanford Site in eastern Washington State. At this location, the unconfined aquifer and the variably saturated l... ...
Water Resources Research - Tập 44 Số 12 - 2008
Level set simulation of coupled advection‐diffusion and pore structure evolution due to mineral precipitation in porous mediaA pore‐scale simulation technique based on level set interface tracking has been developed for modeling coupled reactive flow and structure evolution in porous media and fracture apertures. Advection, diffusion, and mineral precipitation resulting in changes in pore geometries are treated simultaneously by solving fully coupled fluid flow and reactive solute transport equations. The reacti... ...
Water Resources Research - Tập 44 Số 12 - 2008
A critical evaluation of recent developments in hydrogeochemical transport models of reactive multichemical componentsMany hydrogeochemical models have appeared in recent years for simulating subsurface solute transport. The hydrological transport of solutes can be described by a set of linear partial differential equations, and the chemical equilibria are described by a set of nonlinear algebraic equations. Three approaches are currently used to formulate the problem: (1) the mixed differential and algeb... ...
Water Resources Research - Tập 25 Số 1 - Trang 93-108 - 1989
Geochemical and boron, strontium, and oxygen isotopic constraints on the origin of the salinity in groundwater from the Mediterranean Coast of IsraelIn order to identify the origin of the salinity and formation of saline plumes in the central part of the Mediterranean coastal aquifer of Israel, we determined the elemental and boron, strontium, and oxygen isotopic compositions of fresh and brackish groundwater (Cl up to 1500 mg/L). We distinguish between two key anthropogenic sources: (1) sewage effluents used for irrigation with high N... ...
Water Resources Research - Tập 35 Số 6 - Trang 1877-1894 - 1999
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