Isotopic tracing of the source water for Cedar Bog in west-central Ohio, USA

Cheng, Songlin

doi:10.1016/s0022-1694(96)03039-9

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…Hydrological interactions between surface water bodies and underlying aquifers are of fundamental concern to those interested in protecting and developing water resources. Building on concepts developed by Craig and Gordon [1965] and Gat [1970]• many recent isotopic studies have demonstrated exchange of water between aquifers and surface water bodies in a variety of settings, including seepage lakes and bogs [Krabbenhoft et al, 1990;Katz et al, 1995;Krabbenhofi and Webster, 1995;Cheng, 1996] Here a is lake radius; B is aquifer thickness; L is distance to the boundary upgradient and downgradient of the lake; and R is vertical recharge flux to the aquifer. U+ and U_ are the upgradient and downgradient flux boundary conditions to the domain, respectively.…”

Section: Introductionmentioning

confidence: 99%

Surface water‐groundwater interaction near shallow circular lakes: Flow geometry in three dimensions

Townley¹,

Trefry²

2000

Water Resources Research

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Abstract. Steady flow regimes for three-dimensional lake-aquifer systems are studied via idealized mathematical models that are extensions of earlier simplified vertical section models of interaction between shallow lakes and underlying aquifers. The present models apply to a shallow circular lake at the surface of a rectangular aquifer of finite depth, yielding a truly three-dimensional representation of the resulting flow system. Flux boundary conditions are applied at the ends of the aquifer, with net vertical recharge or evapotranspiration at the water table. The lake is defined by a region with constant head. By determining and visualizing solutions to the discretized saturated flow equations, a range of possible flow regimes is identified, and their topological properties are studied. Tools for analyzing flow regimes are described, including a method for locating and mapping three-dimensional dividing surfaces within steady flow fields. Results show strong similarities between two-and three-dimensional systems, including a large number of flowthrough, recharge, and discharge regimes and reverse flow cells. Flow lines calculated on a vertical plane through the middle of a lake resemble but are not identical to twodimensional streamlines for a range of aquifer flow and recharge conditions. Estimates of the widths and depths of capture and release zones for various lake-aquifer geometries are asymptotic to earlier results for two-dimensional systems. Numerical predictions are compared with analytical results for certain limiting flow regimes.

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Section: Introductionmentioning

confidence: 99%

Surface water‐groundwater interaction near shallow circular lakes: Flow geometry in three dimensions

Townley¹,

Trefry²

2000

Water Resources Research

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“…Las variaciones isotópicas del agua: oxígeno-18 ( 18 O), deuterio ( 2 H) y tritio ( 3 H), presentan una enorme ventaja sobre otros tipos de trazadores ambientales químicos del agua por el hecho de que forman parte de la propia molécula del agua, con lo que resultan muy minimizados los efectos de retardo, reacciones químicas, sor-ción, etc. La composición isotópica del oxígeno y del hidrógeno prácticamente no cambia en el agua subterránea durante la interacción aguaroca a temperaturas bajas, inferiores a 80 • C (Gat y Gonfiantini, 1981;Cheng, 1996). Se han seleccionado aguas de manantiales, pozos y sondeos, y también de lluvia a diversas altitudes, con el objetivo de conocer las posibles variaciones isotópicas altitudinales y estacionales (Tabla 3).…”

Section: Caracterización Isotópica Ambientalunclassified

Hidrogeoquímica e isotopía ambiental del sector noreste de la Serra de Tramuntana, isla de Mallorca (España)

Silva

Gimena

2010

ing.agua

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Resumen: El conocimiento de las características hidroquímicas de la Serra de Tramuntana, en la porción nordoccidental de la Isla de Mallorca, España, es primordial para la evaluación y gestión de sus recursos hídricos subterráneos. Estos recursos tienen un valor estratégico para Mallorca ya que hay un notable potencial de agua subterránea. Actualmente se ha iniciado su desarrollo con el trasvase del manantial de Sa Costera, en operación desde 2008. Se han estudiado las características hidroquímicas e isotópicas de tres zonas en el sector noreste de la Serra de Tramuntana: 1) Manantial de Sa Costera, en el acantilado marino del noroeste de la isla; 2) Ses Ufanes de Gabellí, fuentes intermitentes que descargan en el Llano Central de Mallorca cerca de la villa de Campanet; 3) Manantial de S'Almadrava, que descarga una mezcla de agua dulce y salada en el llano costero de Pollença, en el extremo norte de la isla. Se ha revisado el modelo conceptual de flujo de agua subterránea en el sistema kárstico de la Serra de Tramuntana, con una nueva cartografía geológica y datos hidrodinámicos básicos (Cardoso da Silva y Custodio, 2008), y ahora con ayuda de la interpretación hidroquímica e isotópica ambiental. Se ha refinado la interpretación isotópica radioactiva con el código MULTIS. Los resultados indican que el flujo del agua subterránea en los acuíferos de la Serra de Tramuntana están en general de acuerdo con los modelos conceptuales existentes, con algunas modificaciones. El agua subterránea es predominantemente bicarbonatada cálcica. Sólo se encuentran altas concentraciones de cloruro en elárea de S'Almadrava, debido a intrusión marina. Los altos contenidos de sulfato, principalmente en lasáreas de Ses Ufanes y Sa Costera, se pueden asociar a niveles de yeso en el Keuper. La tasa de recarga es del 0.3 al 0.5 de la precipitación anual, tanto más cuanto más alta sea elárea.© Fundación para el Fomento de la Ingeniería del Agua

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“…The υ 18 O of groundwater has been used in other wetland settings to determine the origin of water in these systems (e.g. Cheng, 1996;Matheney and Gerla, 1996). Figure 5 shows that spring water had the lightest υ 18 O, and can be assumed to represent spring snowmelt in the headwaters of the watershed.…”

Section: Dissolved Inorganic Carbon and Stable Carbon Isotopesmentioning

confidence: 99%

Geochemical and isotopic evidence of a groundwater source in the Corral Canyon meadow complex, central Nevada, USA

Atekwana

Richardson

2004

Hydrological Processes

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Abstract:Major inorganic ions and stable carbon and oxygen isotopes in stream water, groundwater, groundwater seeps and springs were measured in the Corral Canyon meadow complex and watershed in the Toquima Mountains of central Nevada, USA. The purpose of the study was to determine whether stream water or groundwater was the source of water that supports vegetation in the meadow complex. Water samples from the watershed and meadow complex were mixed cation-HCO 3 type. Stream water sampled at different locations in the meadow complex showed variations in temperature, pH and specific conductance. The cation-anion proportions for stream water were similar to groundwater, groundwater seeps and runoff from the meadow complex. Stable oxygen isotope ratios for stream water ( 17Ð1 to 17Ð6‰ versus VSMOW) and groundwater and groundwater seeps in the meadow site ( 17Ð0 to 17Ð7‰ versus VSMOW) were similar, and consistent with a local meteoric origin. Dissolved inorganic carbon (DIC) and the υ 13 C DIC for stream water ( 12Ð1 to 15Ð0‰ versus VPDB) were different from that of groundwater from the meadow complex ( 15Ð3 to 19Ð9‰ versus VPDB), suggesting different carbon evolution pathways. However, a simple model based on cation-υ 13 C DIC suggests that stream water was being recharged by shallow groundwater, groundwater seeps and runoff from the meadow complex. This leads to the conclusion that the source of water that supports vegetation in the meadow complex was primarily groundwater. The results of this study suggest that multiple chemical and stable carbon isotope tracers are useful in determining the source of water that supports vegetation in meadow complexes in small alpine watersheds.

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Isotopic tracing of the source water for Cedar Bog in west-central Ohio, USA

Cited by 9 publications

References 8 publications

Surface water‐groundwater interaction near shallow circular lakes: Flow geometry in three dimensions

Surface water‐groundwater interaction near shallow circular lakes: Flow geometry in three dimensions

Hidrogeoquímica e isotopía ambiental del sector noreste de la Serra de Tramuntana, isla de Mallorca (España)

Geochemical and isotopic evidence of a groundwater source in the Corral Canyon meadow complex, central Nevada, USA

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