Open AccessJournal Article10.1002/HYP.7796

How old is streamwater? Open questions in catchment transit time conceptualization, modelling and analysis

- 15 Jun 2010

- Vol. 24, Iss: 12, pp 1745-1754

355

TL;DR: The time water spends travelling subsurface through a catchment to the stream network (i.e., the catchment water transit time) fundamentally describes the storage, flow pathway heterogeneity and sou...

Abstract: The time water spends travelling subsurface through a catchment to the stream network (i.e. the catchment water transit time) fundamentally describes the storage, flow pathway heterogeneity and sou ...

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1. What are the contributions mentioned in the paper "How old is streamwater? open questions in catchment transit time conceptualization, modelling and analysis" ?

McDonnell et al. this paper proposed a method to estimate the transit time of a water stream by using the mean transit timescale of the water distribution.

2. What future works have the authors mentioned in the paper "How old is streamwater? open questions in catchment transit time conceptualization, modelling and analysis" ?

The authors hope that this commentary may serve as a benchmarking statement as they proceed to incorporate the concept of transit time more fully into experimental work ( for revealing new processes ) and watershed modelling ( for model structure development and model testing ).

Table I. Water transit time distributions for catchment systems

Figure 1. Schematic illustrating that spatially distributed inputs received by a catchment travel along heterogeneous flow paths to the catchment outlet (output). The diagram shows how a conservative tracer input to a catchment will be ‘filtered’ as the water passes through the system to the catchment outlet, yielding a damped and lagged signal with less high-frequency variation. The transit time distribution (TTD) describes the filtering process

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References

Journal Article•10.1016/J.JHYDROL.2006.04.020

A review and evaluation of catchment transit time modeling

Kevin J. McGuire, +1 more

- 15 Nov 2006

- Journal of Hydrology

TL;DR: In this article, the authors present an evaluation and review of the transit time literature in the context of catchments and water transit time estimation and provide a critical analysis of unresolved issues when applied at the catchment-scale.

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932

•Journal Article•10.1029/WR019I003P00718

Simulation of solute transport in a mountain pool‐and‐riffle stream: A transient storage model

Kenneth E. Bencala, +1 more

- 01 Jun 1983

- Water Resources Research

TL;DR: In this article, a transient storage model was used to simulate solute transport in a very small (0.0125 m3s−1) mountain pool-and-riffle stream.

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Journal Article•10.1016/0022-1694(82)90147-0

DETERMINING THE TURNOVER TIME OF GROUNDWATER SYSTEMS WITH THE AID OF ENVIRONMENTAL TRACERS 1. Models and Their Applicability

P. Małoszewski, +1 more

- 01 Jun 1982

- Journal of Hydrology

TL;DR: In this paper, three new lumped-parameter models have been developed for the interpretation of environmental radioisotope data in groundwater systems, and the applicability of these models were tested by the reinterpretation of several known case studies (Modry Dul, Cheju Island, Rasche Spring and Grafendorf).

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Journal Article•10.1016/0009-2509(78)85196-3

On the physical meaning of the dispersion equation and its solutions for different initial and boundary conditions

A. Kreft, +1 more

- 01 Jan 1978

- Chemical Engineering Science

TL;DR: In this article, it is shown that similarly to the movement in capillaries, also in other dispersive systems, the distinction between the concentration of solute in res is also made by known and new transformations.

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•Journal Article•10.1029/2004WR003657

The role of topography on catchment-scale water residence time

Kevin J. McGuire, +7 more

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TL;DR: In this article, the authors determine the dominant physical controls on catchment-scale water residence time and specifically test the hypothesis that residence time is related to the size of the basin Residence times were estimated by simple convolution models that described the transfer of precipitation isotopic composition to the stream network.

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How old is streamwater? Open questions in catchment transit time conceptualization, modelling and analysis

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Most frequently asked questions

1. What are the contributions mentioned in the paper "How old is streamwater? open questions in catchment transit time conceptualization, modelling and analysis" ?

2. What future works have the authors mentioned in the paper "How old is streamwater? open questions in catchment transit time conceptualization, modelling and analysis" ?

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Citations

A decade of Predictions in Ungauged Basins (PUB)—a review

Hyporheic flow and transport processes: Mechanisms, models, and biogeochemical implications

Concepts of hydrological connectivity: Research approaches, pathways and future agendas

Hydrologic Regulation of Chemical Weathering and the Geologic Carbon Cycle

Illuminating hydrological processes at the soil-vegetation-atmosphere interface with water stable isotopes

References

A review and evaluation of catchment transit time modeling

Simulation of solute transport in a mountain pool‐and‐riffle stream: A transient storage model

DETERMINING THE TURNOVER TIME OF GROUNDWATER SYSTEMS WITH THE AID OF ENVIRONMENTAL TRACERS 1. Models and Their Applicability

On the physical meaning of the dispersion equation and its solutions for different initial and boundary conditions

The role of topography on catchment-scale water residence time

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