Hydrologic dynamics and linkages in a wetland-dominated basin

Todd, Aaron; Buttle, J. M.; Taylor, C. H.

doi:10.1016/j.jhydrol.2005.05.001

Cited by 49 publications

(34 citation statements)

References 36 publications

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“…Similarly, the high water tables near or ponded during September-December 2008 (not shown) resulted in high surface runoff > 1 mm/day with annual R/O of 0.19 (Table 1). These results are consistent with other data reported for the coastal plain region with wetland dominated areas (Todd et al, 2006;Amatya et al, 2006).…”

Section: Resultssupporting

confidence: 94%

“…Similarly, characteristics of peak flow rates were recently reported by Sheridan (2002) and Sheridan et al (2002). In their study of hydrologic dynamics in a wetland dominated landscape, Todd et al (2006) reported that the peak basin stream flow resulted from delivery of sub-basins runoff to a spatially linked drainage network during spring snowmelt and this may have implications to the variable source area concept for runoff generation. Similarly, Slattery et al (2006) and James and Roulet (2007) reported on hydrologic connectivity and storm runoff generation processes in a small agricultural (<20 ha) and a small forested (11 ha) field, respectively.…”

supporting

confidence: 64%

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Streamflow Characteristics of a Naturally Drained Forested Watershed in Southeast Atlantic Coastal Plain

Amatya¹,

Trettin²

2010

9th International Drainage Symposium Held Jointly With CIGR and CSBE/SCGAB Proceedings, 13-16 June 2010, Québec City Convention

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Information about streamflow characteristics e.g. runoff-rainfall (R/O) ratio, rate and timing of flow, surface and subsurface drainage (SSD), and response time to rainfall events is necessary to accurately simulate fluxes and for designing best management practices (BMPs). Unfortunately, those data are scarce in the southeastern Atlantic coastal plain, a highly urbanizing region characterized by poorly drained lowgradient forested landscape where runoff is dominated by shallow SSD and saturation excess overland flow. In this paper we evaluate these characteristics using four years (2005-08) of streamflow data measured on a 72 km 2 naturally drained forested watershed on the Francis Marion National Forest in coastal South Carolina. The calculated average event peak flow rate, time to peak, event duration, SSD as % of streamflow, and R/O ratio were 4.2 m 3 sec -1 km -2 , 14.6 hrs, 13.9 days, 29%, and 20%, respectively, for 12 events with rainfall amount varying from 153 mm to 34 mm. The events were similar to those from the historic data (1964-73) indicating a hydrologic recovery of forest since its regeneration after Hurricane Hugo in 1989. The average drainage response time to the rain was 7.8 hours. Results suggested that the runoff and peak flow rate of storm events are dependent upon both the rainfall and its intensity as well as the antecedent conditions described better by initial water table positions than the initial flow rate. These results, as a baseline reference, may have implications for regional water and water quality management assessments including the restoration efforts.

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Section: Resultssupporting

confidence: 94%

supporting

confidence: 64%

Streamflow Characteristics of a Naturally Drained Forested Watershed in Southeast Atlantic Coastal Plain

Amatya¹,

Trettin²

2010

9th International Drainage Symposium Held Jointly With CIGR and CSBE/SCGAB Proceedings, 13-16 June 2010, Québec City Convention

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“…Thus, basins draining major aquifer complexes, such as the Oak Ridges Moraine, generally produce substantial quantities of baseflow and sustained and relatively large low flows (Hinton, 2005). Conversely, the drainage networks of basins located on till-covered plains that do not receive regional groundwater inputs can often become spatially disconnected due to water losses to evaporation and infiltration through the channel bed during summer droughts, leading to the cessation of streamflow (Todd et al, 2006).…”

Section: Unique Aspects Of the Region In The Context Of Low Flowsmentioning

confidence: 99%

The Processes, Patterns and Impacts of Low Flows Across Canada

Burn¹,

Buttle²,

Caissie³

et al. 2008

Canadian Water Resources Journal

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This paper provides an overview of low flow characteristics for six regions of Canada: the Arctic; the Mountains; the Prairies; southern Ontario; the Canadian Shield and the Atlantic. Processes that influence low flows are contrasted between the six regions examined. Data from a common analysis period for 51 gauging stations are used to evaluate flow duration curves and to explore the relationship between low flows and drainage area. The results reveal a diversity of processes influencing low flows and illustrate important regional differences in low flow characteristics and the impacts associated with low flows.

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“…Evapotranspiration by riparian vegetation can remove significant amounts of water from small streams, via shallow groundwater flow from the stream to the riparian zone (e.g., Todd et al, 2006). This effect is likely to be most important for small streams where the width of the riparian zones is significant compared to the width of the stream itself.…”

Section: Water Losses To Evapotranspiration From Riparian Zones Via Smentioning

confidence: 99%

Low-Flows in Deterministic Modelling: A Brief Review

Davison¹,

Kamp²

2008

Canadian Water Resources Journal

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Deterministic hydrological models are limited in their ability to model low-flows, but as they are increasingly being used for low-flow studies, a review is timely if they are to be used for this purpose. The representations of the physical processes that govern low-flows are described for a selection of models developed and/or used in Canada. The models vary in the extent to which they incorporate low-flow processes, such as drawdown of storage in lakes, stream channels and wetlands, riparian evapotranspiration, freeze-up and bank storage. The representation of groundwater in the models is not physically-based and the hydrologic models must be coupled with distributed groundwater models to answer questions about groundwater withdrawals. Most models have not been rigorously tested for low-flow simulations. Considerable work remains to be done, especially in the adequate representation of low-flow processes, and in evaluation of models for low-flow studies by using low-flow specific evaluation criteria.Résumé : Les modèles hydrologiques déterministes sont limités dans leur capacité de modéliser les basses eaux. Cependant, étant donné que ces modèles sont de plus en plus employés pour les études sur les étiages, un examen s'impose s'ils doivent servir à cette fin. Les représentations des processus physiques qui régissent les basses eaux sont décrites pour une gamme de modèles élaborés et/ou utilisés au Canada. Les modèles varient quant au degré suivant lequel ils incorporent les processus de basses eaux, par exemple la diminution de l'emmagasinement dans les lacs, les chenaux de cours d'eau et les milieux humides, de l'évapotranspiration riveraine, de l'englacement et de l'emmagasinement dans les berges. La représentation des eaux souterraines dans les modèles n'est pas basée sur des critères physiques et les modèles hydrologiques doivent être couplés avec des modèles répartis d'eau souterraine pour apporter des réponses aux questions entourant les prélèvements d'eau souterraine. La plupart des modèles n'ont pas été testés rigoureusement pour les simulations des basses eaux. Il reste encore pas mal de travail à accomplir, en particulier en ce qui concerne la représentation adéquate des processus d'étiage et l'évaluation des modèles pour les études sur les basses eaux à l'aide de critères d'évaluation propres aux basses eaux. 182Canadian Water Resources Journal/Revue canadienne des ressources hydriques

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Hydrologic dynamics and linkages in a wetland-dominated basin

Cited by 49 publications

References 36 publications

Streamflow Characteristics of a Naturally Drained Forested Watershed in Southeast Atlantic Coastal Plain

Streamflow Characteristics of a Naturally Drained Forested Watershed in Southeast Atlantic Coastal Plain

The Processes, Patterns and Impacts of Low Flows Across Canada

Low-Flows in Deterministic Modelling: A Brief Review

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