Transport at basin scales: 2. Applications

Rinaldo, Andrea; Botter, Gianluca; Bertuzzo, Enrico; Uccelli, Antonio; Settin, T.; Marani, Marco

doi:10.5194/hess-10-31-2006

Cited by 37 publications

(35 citation statements)

References 23 publications

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“…[7] The Piovega Tre Comuni is a small tributary within the Dese catchment, a complex River/drainage system discharging into the Venice Lagoon (northeast Italy, Figures 1a and 1b), which has been characterized by several recent hydrologic studies [Zuliani et al 2005;Collavini et al, 2005;Rinaldo et al, 2005Rinaldo et al, , 2006aRinaldo et al, , 2006bBotter et al, 2006]. The watershed is located in a flat, rural landscape, with fairly sparse urban areas.…”

Section: Test Catchment and Experimental Settingmentioning

confidence: 99%

“…The distinction between travel and residence times [e.g., Rinaldo et al, 1989Rinaldo et al, , 2006b needs to be accounted for at all times in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…In the last several decades, nitrate leaching through runoff has received growing attention from hydrologists and ecologists, leading to a number of experimental and/or theoretical studies conducted both in forested and agricultural catchments. Therein, the hysteretic nature of the dischargeconcentration relationship and the role of topography, biogeochemistry and hydrological processes in controlling the storage and transport of nutrients have been recognized [e.g., Creed et al, 1996;Band, 1998a, 1998b;Evans and Davies, 1998;Hill et al, 1999;Cvetkovic, 2000, 2002;Porporato et al, 2003;Lindgren et al, 2004Lindgren et al, , 2007Darracq et al, 2005;Rinaldo et al, 2006b;Weiler and McDonnell, 2006;Botter et al, 2006Botter et al, , 2008Darracq and Destouni, 2007]. However, a comprehensive understanding of the variety of connections existing between hydrological processes and solute mobilization at the basin scale is still lacking.…”

Section: Introductionmentioning

confidence: 99%

“…The models describe transport processes via mass-response functions (MRFs) defined by nested convolutions employing linked travel, residence or life-time distributions. MRFs have been shown to be related to the general formulation of transport by travel time distributions for reactive solutes [Cvetkovic and Dagan, 1994;Dagan and Cvetkovic, 1996;Fossereau et al, 2000Fossereau et al, , 2001Botter et al, 2005], and describe accurately both hydrologic and solute responses at the catchment scale by a minimum of parameters [e.g., Rinaldo et al, 1989Rinaldo et al, , 2006b].…”

Section: Introductionmentioning

confidence: 99%

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Observation and modeling of catchment‐scale solute transport in the hydrologic response: A tracer study

Botter

Peratoner

Putti

et al. 2008

Water Resources Research

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[1] The coherent description of water flow and solute transport within heterogeneous hydrologic media (e.g., hillslopes or entire catchments) in response to external rainfall forcings represents a challenge in hydrological modeling. In this paper the mechanisms determining the mobilization and transport of solutes in soils through the paths of runoff formation are investigated by means of a tracer experiment conducted within an instrumented hillslope draining into a tributary of the Dese river basin (northeastern Italy). The response of the test catchment during a rainfall event occurred at the beginning of December 2006 has been analyzed by employing two different chemical tracers: nitrates from diffuse agricultural sources (NO 3 À ) and lithium from a point injection (Li + ). Rainfall depths, streamflows, and pressure heads within different soil horizons were also collected. The observed hydro-chemical response of the Piovega Tre Comuni has been reproduced by a Mass Response Function solute transport model. Our results evidence the origins of the chromatographic effects seen in the system's response. In particular, the deep subsurface component of runoff is found to dominate the long-term behavior of the hydrograph and proves responsible for exporting relatively large amounts of solutes from soil. Experimental evidences and modeling results also suggest that the behavior of the breakthrough curve in stream waters may be strongly affected by the persistence of the rainfall forcing and by the relative magnitude of the rainfall-driven hydrologic contribution with respect to the background noise unrelated to soil moisture dynamics.

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Section: Test Catchment and Experimental Settingmentioning

confidence: 99%

“…The distinction between travel and residence times [e.g., Rinaldo et al, 1989Rinaldo et al, , 2006b needs to be accounted for at all times in this paper.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Observation and modeling of catchment‐scale solute transport in the hydrologic response: A tracer study

Botter

Peratoner

Putti

et al. 2008

Water Resources Research

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“…One intriguing and important question is how the spatial organization of river networks is reflected in the hydrologic response to rainfall inputs. The geomorphological theory of the hydrologic response [Kirkby, 1976;Rodríguez-Iturbe and Valdés, 1979;Rinaldo and Rodríguez-Iturbe, 1996] links the geomorphological properties of the hillslope-network system and its responses [e. g., Rinaldo et al, 2006aRinaldo et al, , 2006b], but requires the complete specification of travel times for the local groundwater flows in order to deal with recession hydrographs. In fact, to our knowledge, few contributions have attempted to connect recession hydrographs and the morphological features of the drainage network producing it [Marani et al, 2001;Vivoni et al, 2008], even though recession curves have long been studied [e.g., Brutsaert and Nieber, 1977].…”

Section: Introductionmentioning

confidence: 99%

Geomorphological origin of recession curves

Biswal

Marani

2010

Geophysical Research Letters

170

290

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[1] We identify a previously undetected link between the river network morphology and key recession curves properties through a conceptual-physical model of the drainage process of the riparian unconfined aquifer. We show that the power-law exponent, a, of −dQ/dt vs. Q curves is related to the power-law exponent of N(l) vs. G(l) curves (which we show to be connected to Hack's law), where l is the downstream distance from the channel heads, N(l) is the number of channel reaches exactly located at a distance l from their channel head, and G(l) is the total length of the network located at a distance greater or equal to l from channel heads. Using Digital Terrain Models and daily discharge observations from 67 US basins we find that geomorphologic a estimates match well the values obtained from recession curves analyses. Finally, we argue that the link between recession flows and network morphology points to an important role of low-flow discharges in shaping the channel network.

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A network-based framework for identifying potential synchronizations and amplifications of sediment delivery in river basins

2014

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Long-term prediction of environmental response to natural and anthropogenic disturbances in a basin becomes highly uncertain using physically based distributed models, particularly when transport time scales range from tens to thousands of years, such as for sediment. Yet, such predictions are needed as changes in one part of a basin now might adversely affect other parts of the basin in years to come. In this paper, we propose a simplified network-based predictive framework of sedimentological response in a basin, which incorporates network topology, channel characteristics, and transport-process dynamics to perform a nonlinear process-based scaling of the river-network width function to a time-response function. We develop the process-scaling formulation for transport of mud, sand, and gravel, using simplifying assumptions including neglecting long-term storage, and apply the methodology to the Minnesota River Basin. We identify a robust bimodal distribution of the sedimentological response for sand of the basin which we attribute to specific source areas, and identify a resonant frequency of sediment supply where the disturbance of one area followed by the disturbance of another area after a certain period of time, may result in amplification of the effects of sediment inputs which would be otherwise difficult to predict. We perform a sensitivity analysis to test the robustness of the proposed formulation to model parameter uncertainty and use observations of suspended sediment at several stations in the basin to diagnose the model. The proposed framework has identified an important vulnerability of the Minnesota River Basin to spatial and temporal structuring of sediment delivery.

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Transport at basin scales: 2. Applications

Cited by 37 publications

References 23 publications

Observation and modeling of catchment‐scale solute transport in the hydrologic response: A tracer study

Observation and modeling of catchment‐scale solute transport in the hydrologic response: A tracer study

Geomorphological origin of recession curves

A network-based framework for identifying potential synchronizations and amplifications of sediment delivery in river basins

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