Articles | Volume 21, issue 11
https://doi.org/10.5194/hess-21-5891-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-21-5891-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
27 Nov 2017
Research article |
| 27 Nov 2017
A sprinkling experiment to quantify celerity–velocity differences at the hillslope scale
Willem J. van Verseveld
CORRESPONDING AUTHOR
Deltares – Catchment and Urban Hydrology Department, Delft, the Netherlands
Holly R. Barnard
Institute of Arctic and Alpine Research, Department of Geography, University of Colorado, Boulder, CO, USA
Chris B. Graham
Hetchy Hetchy Water and Power, Moccasin, CA, USA
Jeffrey J. McDonnell
Global Institute for Water Security and School of Environment and Sustainability, University of Saskatchewan, Saskatchewan, Canada
School of Geoscience, University of Aberdeen, Aberdeen, Scotland
J. Renée Brooks
Western Ecology Division, US EPA/NHEERL, Corvallis, OR, USA
Markus Weiler
Chair of Hydrology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
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Merle Koelbing, Tobias Schuetz, and Markus Weiler
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Anne Hartmann, Ekaterina Semenova, Markus Weiler, and Theresa Blume
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Hydrol. Earth Syst. Sci., 24, 2633–2653, https://doi.org/10.5194/hess-24-2633-2020, https://doi.org/10.5194/hess-24-2633-2020, 2020
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Hydrol. Earth Syst. Sci., 24, 2303–2322, https://doi.org/10.5194/hess-24-2303-2020, https://doi.org/10.5194/hess-24-2303-2020, 2020
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We evaluate the soil moisture response in the humid tropics to El Niño during the three most recent super El Niño events. Our estimates are compared to in situ soil moisture estimates that span five continents. We find the strongest and most consistent soil moisture decreases in the Amazon and maritime southeastern Asia, while the most consistent increases occur over eastern Africa. Our results can be used to improve estimates of soil moisture in tropical ecohydrology models at multiple scales.
Axel Schaffitel, Tobias Schuetz, and Markus Weiler
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This paper contains detailed information about the instrumentation of permeable pavements with soil moisture sensors and the performance of infiltration experiments on these surfaces. The collected data are beneficial for studying urban water and energy cycles. They contain valuable information about the hydrological behavior of permeable pavements and urban subsurface heat anomalies. Due to the lack of similar data, we are convinced that the dataset is of great scientific value.
Michael Stoelzle, Tobias Schuetz, Markus Weiler, Kerstin Stahl, and Lena M. Tallaksen
Hydrol. Earth Syst. Sci., 24, 849–867, https://doi.org/10.5194/hess-24-849-2020, https://doi.org/10.5194/hess-24-849-2020, 2020
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During dry weather, different delayed sources of runoff (e.g. from groundwater, wetlands or snowmelt) modulate the magnitude and variability of streamflow. Hydrograph separation methods often do not distinguish these delayed contributions and mostly pool them into only two components (i.e. quickflow and baseflow). We propose a method that uncovers multiple components and demonstrates how they better reflect streamflow generation processes of different flow regimes.
Bernd R. Schöne, Aliona E. Meret, Sven M. Baier, Jens Fiebig, Jan Esper, Jeffrey McDonnell, and Laurent Pfister
Hydrol. Earth Syst. Sci., 24, 673–696, https://doi.org/10.5194/hess-24-673-2020, https://doi.org/10.5194/hess-24-673-2020, 2020
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We present the first annually resolved stable isotope record (1819–1998) from shells of Swedish river mussels. Data reflect hydrological processes in the catchment and changes in the isotope value of local precipitation. The latter is related to the origin of moisture from which precipitation formed (North Atlantic or the Arctic) and governed by large-scale atmospheric circulation patterns. Results help to better understand climate dynamics and constrain ecological changes in river ecosystems.
Fabian Ries, Lara Kirn, and Markus Weiler
Earth Syst. Sci. Data, 12, 245–255, https://doi.org/10.5194/essd-12-245-2020, https://doi.org/10.5194/essd-12-245-2020, 2020
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Pluvial or flash floods generated by heavy precipitation events cause large economic damage and loss of life worldwide. As discharge observations from such extreme occurrences are rare, data from artificial sprinkling experiments offer valuable information on runoff generation processes, overland and subsurface flow rates, and response times. A extensive data set from 132 large-scale sprinkling experiments in Germany is described and presented in this paper.
Dominic Demand, Theresa Blume, and Markus Weiler
Hydrol. Earth Syst. Sci., 23, 4869–4889, https://doi.org/10.5194/hess-23-4869-2019, https://doi.org/10.5194/hess-23-4869-2019, 2019
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Magali F. Nehemy, Paolo Benettin, Mitra Asadollahi, Dyan Pratt, Andrea Rinaldo, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2019-528, https://doi.org/10.5194/hess-2019-528, 2019
Preprint withdrawn
Anna E. Coles, Jeffrey J. McDonnell, and Brian G. McConkey
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Nils Hinrich Kaplan, Ernestine Sohrt, Theresa Blume, and Markus Weiler
Earth Syst. Sci. Data, 11, 1363–1374, https://doi.org/10.5194/essd-11-1363-2019, https://doi.org/10.5194/essd-11-1363-2019, 2019
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Different sensing techniques including time-lapse imagery, electric conductivity and stage measurements were used to generate a combined dataset of the presence and absence of streamflow within a large number of nested sub-catchments in the Attert catchment, Luxembourg. The first sites of observation were established in 2013 and successively extended to a total number of 182 in 2016. The dataset can be used to improve understanding of the temporal and spatial dynamics of the stream network.
Barbara Herbstritt, Benjamin Gralher, and Markus Weiler
Hydrol. Earth Syst. Sci., 23, 3007–3019, https://doi.org/10.5194/hess-23-3007-2019, https://doi.org/10.5194/hess-23-3007-2019, 2019
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We describe a novel technique for the precise, quasi real-time observation of water-stable isotopes in gross precipitation and throughfall from tree canopies in parallel. Various processes (e.g. rainfall intensity, evapotranspiration, exchange with ambient vapour) thereby control throughfall intensity and isotopic composition. The achieved temporal resolution now competes with common meteorological measurements, thus enabling new ways to employ water-stable isotopes in forested catchments.
Jobin Joseph, Christoph Külls, Matthias Arend, Marcus Schaub, Frank Hagedorn, Arthur Gessler, and Markus Weiler
SOIL, 5, 49–62, https://doi.org/10.5194/soil-5-49-2019, https://doi.org/10.5194/soil-5-49-2019, 2019
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By coupling an OA-ICOS with hydrophobic but gas-permeable membranes placed at different depths in acidic and calcareous soils, we investigated the contribution of abiotic and biotic components to total soil CO2 release. In calcareous Gleysol, CO2 originating from carbonate dissolution contributed to total soil CO2 concentration at detectable degrees, probably due to CO2 evasion from groundwater. Inward diffusion of atmospheric CO2 was found to be pronounced in the topsoil layers at both sites.
Daniele Penna, Luisa Hopp, Francesca Scandellari, Scott T. Allen, Paolo Benettin, Matthias Beyer, Josie Geris, Julian Klaus, John D. Marshall, Luitgard Schwendenmann, Till H. M. Volkmann, Jana von Freyberg, Anam Amin, Natalie Ceperley, Michael Engel, Jay Frentress, Yamuna Giambastiani, Jeff J. McDonnell, Giulia Zuecco, Pilar Llorens, Rolf T. W. Siegwolf, Todd E. Dawson, and James W. Kirchner
Biogeosciences, 15, 6399–6415, https://doi.org/10.5194/bg-15-6399-2018, https://doi.org/10.5194/bg-15-6399-2018, 2018
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Understanding how water flows through ecosystems is needed to provide society and policymakers with the scientific background to manage water resources sustainably. Stable isotopes of hydrogen and oxygen in water are a powerful tool for tracking water fluxes, although the heterogeneity of natural systems and practical methodological issues still limit their full application. Here, we examine the challenges in this research field and highlight new perspectives based on interdisciplinary research.
Mirko Mälicke, Sibylle K. Hassler, Markus Weiler, Theresa Blume, and Erwin Zehe
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2018-396, https://doi.org/10.5194/hess-2018-396, 2018
Manuscript not accepted for further review
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In this study we use time dependent variograms to identify periods of organized soil moisture during drying. We could identify emerging spatial patterns which imply periods of terrestrial control on soil moisture organization. The coupling of time dependent variograms with density based clustering is a new approach to detect similarity in spatial patterns. The presented method is useful to describe states of organization and improve kriging workflows by extending their prerequisites.
Jana von Freyberg, Scott T. Allen, Stefan Seeger, Markus Weiler, and James W. Kirchner
Hydrol. Earth Syst. Sci., 22, 3841–3861, https://doi.org/10.5194/hess-22-3841-2018, https://doi.org/10.5194/hess-22-3841-2018, 2018
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We explored how the fraction of streamflow younger than ca. 3 months (Fyw) varies with landscape characteristics and climatic forcing, using an extensive isotope data set from 22 Swiss catchments. Overall, Fyw tends to be larger when catchments are wet and discharge is correspondingly higher, indicating an increase in the proportional contribution of faster flow paths at higher flows. We quantify this
discharge sensitivityof Fyw and relate it to the dominant streamflow-generating mechanisms.
Natalie Orlowski, Lutz Breuer, Nicolas Angeli, Pascal Boeckx, Christophe Brumbt, Craig S. Cook, Maren Dubbert, Jens Dyckmans, Barbora Gallagher, Benjamin Gralher, Barbara Herbstritt, Pedro Hervé-Fernández, Christophe Hissler, Paul Koeniger, Arnaud Legout, Chandelle Joan Macdonald, Carlos Oyarzún, Regine Redelstein, Christof Seidler, Rolf Siegwolf, Christine Stumpp, Simon Thomsen, Markus Weiler, Christiane Werner, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci., 22, 3619–3637, https://doi.org/10.5194/hess-22-3619-2018, https://doi.org/10.5194/hess-22-3619-2018, 2018
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To extract water from soils for isotopic analysis, cryogenic water extraction is the most widely used removal technique. This work presents results from a worldwide laboratory intercomparison test of cryogenic extraction systems. Our results showed large differences in retrieved isotopic signatures among participating laboratories linked to interactions between soil type and properties, system setup, extraction efficiency, extraction system leaks, and each lab’s internal accuracy.
Jakob Sohrt, Heike Puhlmann, and Markus Weiler
SOIL Discuss., https://doi.org/10.5194/soil-2018-13, https://doi.org/10.5194/soil-2018-13, 2018
Revised manuscript not accepted
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We sampled concentrations of phosphorus (P) in laterally flowing water in the organic layer of three beech forest sites. Sampling frequency was in the range to minutes to ours with the intent of capturing short term variability of this parameter and the underlying mechanisms, which were analyzed with a modeling approach. While site affiliation was found to be a strong influence on P concentrations in lateral flow, some universal effects – like antecedent soil moisture – could also be determined.
Daphné Freudiger, David Mennekes, Jan Seibert, and Markus Weiler
Earth Syst. Sci. Data, 10, 805–814, https://doi.org/10.5194/essd-10-805-2018, https://doi.org/10.5194/essd-10-805-2018, 2018
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To understand glacier changes in the Swiss Alps at the large scale, long-term datasets are needed. To fill the gap between the existing glacier inventories of the Swiss Alps between 1850 and 1973, we digitized glacier outlines from topographic historical maps of Switzerland for the time periods ca. 1900 and ca. 1935. We found that > 88 % of the digitized glacier area was plausible compared to four inventories. The presented dataset is therefore valuable information for long-term glacier studies.
Michael P. Schwab, Julian Klaus, Laurent Pfister, and Markus Weiler
Biogeosciences, 15, 2177–2188, https://doi.org/10.5194/bg-15-2177-2018, https://doi.org/10.5194/bg-15-2177-2018, 2018
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We studied the diel fluctuations of dissolved organic carbon (DOC) concentrations in a small stream in Luxembourg. We identified an increased proportion of DOC from terrestrial sources as responsible for the peaks in DOC in the afternoon. Warmer water temperatures in the riparian zone in the afternoon increased the amount of water flowing towards the stream. Consequently, an increased amount of DOC-rich water from the riparian zone was entering the stream.
Jan Seibert, Marc J. P. Vis, Irene Kohn, Markus Weiler, and Kerstin Stahl
Hydrol. Earth Syst. Sci., 22, 2211–2224, https://doi.org/10.5194/hess-22-2211-2018, https://doi.org/10.5194/hess-22-2211-2018, 2018
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In many glacio-hydrological models glacier areas are assumed to be constant over time, which is a crucial limitation. Here we describe a novel approach to translate mass balances as simulated by the (glacio)hydrological model into glacier area changes. We combined the Δh approach of Huss et al. (2010) with the bucket-type model HBV and introduced a lookup table approach, which also allows periods with advancing glaciers to be represented, which is not possible with the original Huss method.
Sibylle Kathrin Hassler, Markus Weiler, and Theresa Blume
Hydrol. Earth Syst. Sci., 22, 13–30, https://doi.org/10.5194/hess-22-13-2018, https://doi.org/10.5194/hess-22-13-2018, 2018
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We use sap velocity measurements from 61 trees on 132 days to gain knowledge about the controls of landscape-scale transpiration, distinguishing tree-, stand- and site-specific controls on sap velocity and sap flow patterns and examining their dynamics during the vegetation period. Our results show that these patterns are not exclusively determined by tree characteristics. Thus, including site characteristics such as geology and aspect could be beneficial for modelling or management purposes.
Susan L. Brantley, David M. Eissenstat, Jill A. Marshall, Sarah E. Godsey, Zsuzsanna Balogh-Brunstad, Diana L. Karwan, Shirley A. Papuga, Joshua Roering, Todd E. Dawson, Jaivime Evaristo, Oliver Chadwick, Jeffrey J. McDonnell, and Kathleen C. Weathers
Biogeosciences, 14, 5115–5142, https://doi.org/10.5194/bg-14-5115-2017, https://doi.org/10.5194/bg-14-5115-2017, 2017
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This review represents the outcome from an invigorating workshop discussion that involved tree physiologists, geomorphologists, ecologists, geochemists, and hydrologists and developed nine hypotheses that could be tested. We argue these hypotheses point to the essence of issues we must explore if we are to understand how the natural system of the earth surface evolves, and how humans will affect its evolution. This paper will create discussion and interest both before and after publication.
Michael P. Schwab, Julian Klaus, Laurent Pfister, and Markus Weiler
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2017-416, https://doi.org/10.5194/hess-2017-416, 2017
Revised manuscript not accepted
Lisa Angermann, Conrad Jackisch, Niklas Allroggen, Matthias Sprenger, Erwin Zehe, Jens Tronicke, Markus Weiler, and Theresa Blume
Hydrol. Earth Syst. Sci., 21, 3727–3748, https://doi.org/10.5194/hess-21-3727-2017, https://doi.org/10.5194/hess-21-3727-2017, 2017
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This study investigates the temporal dynamics and response velocities of lateral preferential flow at the hillslope. The results are compared to catchment response behavior to infer the large-scale implications of the observed processes. A large portion of mobile water flows through preferential flow paths in the structured soils, causing an immediate discharge response. The study presents a methodological approach to cover the spatial and temporal domain of these highly heterogeneous processes.
Conrad Jackisch, Lisa Angermann, Niklas Allroggen, Matthias Sprenger, Theresa Blume, Jens Tronicke, and Erwin Zehe
Hydrol. Earth Syst. Sci., 21, 3749–3775, https://doi.org/10.5194/hess-21-3749-2017, https://doi.org/10.5194/hess-21-3749-2017, 2017
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Rapid subsurface flow in structured soils facilitates fast vertical and lateral redistribution of event water. We present its in situ exploration through local measurements and irrigation experiments. Special emphasis is given to a coherent combination of hydrological and geophysical methods. The study highlights that form and function operate as conjugated pairs. Dynamic imaging through time-lapse GPR was key to observing both and to identifying hydrologically relevant structures.
Anna E. Coles, Willemijn M. Appels, Brian G. McConkey, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2016-564, https://doi.org/10.5194/hess-2016-564, 2016
Manuscript not accepted for further review
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We used a long-term hydrological and meteorological dataset to unravel the interactions and feedbacks between controls on snowmelt-runoff over Canadian Prairie hillslopes. We found a condition-dependent hierarchy of controls on snowmelt-runoff, which include soil water content, precipitation, melt season length and melt rate. These results have implications for hydrological modeling on seasonally-frozen ground, and for guiding cost-effective and useful field measurements.
Shabnam Saffarpour, Andrew W. Western, Russell Adams, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci., 20, 4525–4545, https://doi.org/10.5194/hess-20-4525-2016, https://doi.org/10.5194/hess-20-4525-2016, 2016
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A variety of threshold mechanisms influence the transfer of rainfall to runoff from catchments. Some of these mechanisms depend on the occurrence of intense rainfall and others depend on the catchment being wet. This article first provides a framework for considering which mechanisms are important in different situations and then uses that framework to examine the behaviour of a catchment in Australia that exhibits a mix of both rainfall intensity and catchment wetness dependent thresholds.
Maik Renner, Sibylle K. Hassler, Theresa Blume, Markus Weiler, Anke Hildebrandt, Marcus Guderle, Stanislaus J. Schymanski, and Axel Kleidon
Hydrol. Earth Syst. Sci., 20, 2063–2083, https://doi.org/10.5194/hess-20-2063-2016, https://doi.org/10.5194/hess-20-2063-2016, 2016
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We estimated forest transpiration (European beech) along a steep valley cross section. Atmospheric demand, obtained by the thermodynamic limit of maximum power, is the dominant control of transpiration at all sites.
To our surprise we find that transpiration is rather similar across sites with different aspect (north vs. south) and different stand structure due to systematically varying sap velocities. Such a compensation effect is highly relevant for modeling and upscaling of transpiration.
Lyssette E. Muñoz-Villers, Daniel R. Geissert, Friso Holwerda, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci., 20, 1621–1635, https://doi.org/10.5194/hess-20-1621-2016, https://doi.org/10.5194/hess-20-1621-2016, 2016
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This study provides an important first step towards a better understanding of the hydrology of tropical montane regions and the factors influencing baseflow mean transit times (MTT). Our MTT estimates ranged between 1.2 and 2.7 years, suggesting deep and long subsurface pathways contributing to sustain dry season flows. Our findings showed that topography and subsurface permeability are the key factors controlling baseflow MTTs. Longest MTTs were found in the cloud forest headwater catchments.
Katharina F. Gimbel, Heike Puhlmann, and Markus Weiler
Hydrol. Earth Syst. Sci., 20, 1301–1317, https://doi.org/10.5194/hess-20-1301-2016, https://doi.org/10.5194/hess-20-1301-2016, 2016
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It is usually assumed that soil properties are not affected by drought events. We used dye tracer experiments to test this assumption on six forest soils, which were forced into drought conditions. The results of this study show clear evidence for changes in infiltration pathways. In addition, most soils developed soil water repellency. Overall, the results suggest that the past climatic conditions are more important than the actual soil moisture status regarding hydrophobicity and infiltration.
Tobias Schuetz, Chantal Gascuel-Odoux, Patrick Durand, and Markus Weiler
Hydrol. Earth Syst. Sci., 20, 843–857, https://doi.org/10.5194/hess-20-843-2016, https://doi.org/10.5194/hess-20-843-2016, 2016
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We quantify the spatio-temporal impact of distinct nitrate sinks and sources on stream network nitrate dynamics in an agricultural headwater. By applying a data-driven modelling approach, we are able to fully distinguish between mixing and dilution processes, and biogeochemical in-stream removal processes along the stream network. In-stream nitrate removal is estimated by applying a novel transfer coefficient based on energy availability.
A. Hartmann, J. Kobler, M. Kralik, T. Dirnböck, F. Humer, and M. Weiler
Biogeosciences, 13, 159–174, https://doi.org/10.5194/bg-13-159-2016, https://doi.org/10.5194/bg-13-159-2016, 2016
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We consider the time period before and after a wind disturbance in an Austrian karst system. Using a process-based flow and solute transport simulation model we estimate impacts on DIN and DOC. We show that DIN increases for several years, while DOC remains within its pre-disturbance variability. Simulated transit times indicate that impact passes through the hydrological system within some months but with a small fraction exceeding transit times of even a year.
N. Martínez-Carreras, C. E. Wetzel, J. Frentress, L. Ector, J. J. McDonnell, L. Hoffmann, and L. Pfister
Hydrol. Earth Syst. Sci., 19, 3133–3151, https://doi.org/10.5194/hess-19-3133-2015, https://doi.org/10.5194/hess-19-3133-2015, 2015
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We tested the hypothesis that different diatom species assemblages inhabit specific moisture domains of the catchment and, consequently, the presence of certain species assemblages in the stream during runoff events offers the potential for recording whether there was hydrological connectivity between these domains or not. In the Weierbach catchment, the transport of aerial diatoms during events suggested a rapid connectivity between the soil surface and the stream.
M. Sprenger, T. H. M. Volkmann, T. Blume, and M. Weiler
Hydrol. Earth Syst. Sci., 19, 2617–2635, https://doi.org/10.5194/hess-19-2617-2015, https://doi.org/10.5194/hess-19-2617-2015, 2015
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We present a novel approach that includes information about the pore water stable isotopic composition in inverse model approaches to estimate soil hydraulic parameters. Different approaches are presented and their adequacy regarding the model efficiency, realism and parameter identifiability are discussed. The advantages of the new approach are shown by an application of the inverse estimated parameters to infer the water balance and the transit time for three different study sites.
J. F. Costelloe, T. J. Peterson, K. Halbert, A. W. Western, and J. J. McDonnell
Hydrol. Earth Syst. Sci., 19, 1599–1613, https://doi.org/10.5194/hess-19-1599-2015, https://doi.org/10.5194/hess-19-1599-2015, 2015
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Groundwater surface mapping is used as an independent data set to better estimate groundwater discharge to streamflow. The groundwater surfaces indicated when other techniques likely overestimated the groundwater discharge component of baseflow. Groundwater surfaces also identified areas where regional groundwater could not be contributing to tributary streamflow. This method adds significant value to water resource management where sufficient groundwater monitoring data are available.
M. Staudinger, M. Weiler, and J. Seibert
Hydrol. Earth Syst. Sci., 19, 1371–1384, https://doi.org/10.5194/hess-19-1371-2015, https://doi.org/10.5194/hess-19-1371-2015, 2015
A. Hally, O. Caumont, L. Garrote, E. Richard, A. Weerts, F. Delogu, E. Fiori, N. Rebora, A. Parodi, A. Mihalović, M. Ivković, L. Dekić, W. van Verseveld, O. Nuissier, V. Ducrocq, D. D'Agostino, A. Galizia, E. Danovaro, and A. Clematis
Nat. Hazards Earth Syst. Sci., 15, 537–555, https://doi.org/10.5194/nhess-15-537-2015, https://doi.org/10.5194/nhess-15-537-2015, 2015
K. F. Gimbel, K. Felsmann, M. Baudis, H. Puhlmann, A. Gessler, H. Bruelheide, Z. Kayler, R. H. Ellerbrock, A. Ulrich, E. Welk, and M. Weiler
Biogeosciences, 12, 961–975, https://doi.org/10.5194/bg-12-961-2015, https://doi.org/10.5194/bg-12-961-2015, 2015
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This paper introduces a novel rainfall reduction experiment to investigate drought effects on soil-forest-understory-ecosystems. An annual drought with a return period of 40 years was imposed, while other ecosystem variables (humidity, air & soil temperature) remained unaffected. The first year of drought showed considerable changes in soil moisture dynamics, which affected leaf stomatal conductance of understory species as well as evapotranspiration rates of the forest understory ecosystem.
J. Klaus, J. J. McDonnell, C. R. Jackson, E. Du, and N. A. Griffiths
Hydrol. Earth Syst. Sci., 19, 125–135, https://doi.org/10.5194/hess-19-125-2015, https://doi.org/10.5194/hess-19-125-2015, 2015
S. Seeger and M. Weiler
Hydrol. Earth Syst. Sci., 18, 4751–4771, https://doi.org/10.5194/hess-18-4751-2014, https://doi.org/10.5194/hess-18-4751-2014, 2014
E. Zehe, U. Ehret, L. Pfister, T. Blume, B. Schröder, M. Westhoff, C. Jackisch, S. J. Schymanski, M. Weiler, K. Schulz, N. Allroggen, J. Tronicke, L. van Schaik, P. Dietrich, U. Scherer, J. Eccard, V. Wulfmeyer, and A. Kleidon
Hydrol. Earth Syst. Sci., 18, 4635–4655, https://doi.org/10.5194/hess-18-4635-2014, https://doi.org/10.5194/hess-18-4635-2014, 2014
J. Schwerdtfeger, M. S. Johnson, E. G. Couto, R. S. S. Amorim, L. Sanches, J. H. Campelo Jr., and M. Weiler
Hydrol. Earth Syst. Sci., 18, 4407–4422, https://doi.org/10.5194/hess-18-4407-2014, https://doi.org/10.5194/hess-18-4407-2014, 2014
B. Merz, J. Aerts, K. Arnbjerg-Nielsen, M. Baldi, A. Becker, A. Bichet, G. Blöschl, L. M. Bouwer, A. Brauer, F. Cioffi, J. M. Delgado, M. Gocht, F. Guzzetti, S. Harrigan, K. Hirschboeck, C. Kilsby, W. Kron, H.-H. Kwon, U. Lall, R. Merz, K. Nissen, P. Salvatti, T. Swierczynski, U. Ulbrich, A. Viglione, P. J. Ward, M. Weiler, B. Wilhelm, and M. Nied
Nat. Hazards Earth Syst. Sci., 14, 1921–1942, https://doi.org/10.5194/nhess-14-1921-2014, https://doi.org/10.5194/nhess-14-1921-2014, 2014
D. Freudiger, I. Kohn, K. Stahl, and M. Weiler
Hydrol. Earth Syst. Sci., 18, 2695–2709, https://doi.org/10.5194/hess-18-2695-2014, https://doi.org/10.5194/hess-18-2695-2014, 2014
R. S. Smith, R. D. Moore, M. Weiler, and G. Jost
Hydrol. Earth Syst. Sci., 18, 1835–1856, https://doi.org/10.5194/hess-18-1835-2014, https://doi.org/10.5194/hess-18-1835-2014, 2014
T. H. M. Volkmann and M. Weiler
Hydrol. Earth Syst. Sci., 18, 1819–1833, https://doi.org/10.5194/hess-18-1819-2014, https://doi.org/10.5194/hess-18-1819-2014, 2014
M. Gassmann, C. Stamm, O. Olsson, J. Lange, K. Kümmerer, and M. Weiler
Hydrol. Earth Syst. Sci., 17, 5213–5228, https://doi.org/10.5194/hess-17-5213-2013, https://doi.org/10.5194/hess-17-5213-2013, 2013
L. E. Muñoz-Villers and J. J. McDonnell
Hydrol. Earth Syst. Sci., 17, 3543–3560, https://doi.org/10.5194/hess-17-3543-2013, https://doi.org/10.5194/hess-17-3543-2013, 2013
A. Hartmann, M. Weiler, T. Wagener, J. Lange, M. Kralik, F. Humer, N. Mizyed, A. Rimmer, J. A. Barberá, B. Andreo, C. Butscher, and P. Huggenberger
Hydrol. Earth Syst. Sci., 17, 3305–3321, https://doi.org/10.5194/hess-17-3305-2013, https://doi.org/10.5194/hess-17-3305-2013, 2013
N. Dietermann and M. Weiler
Hydrol. Earth Syst. Sci., 17, 2657–2668, https://doi.org/10.5194/hess-17-2657-2013, https://doi.org/10.5194/hess-17-2657-2013, 2013
J. Garvelmann, S. Pohl, and M. Weiler
Hydrol. Earth Syst. Sci., 17, 1415–1429, https://doi.org/10.5194/hess-17-1415-2013, https://doi.org/10.5194/hess-17-1415-2013, 2013
M. Stoelzle, K. Stahl, and M. Weiler
Hydrol. Earth Syst. Sci., 17, 817–828, https://doi.org/10.5194/hess-17-817-2013, https://doi.org/10.5194/hess-17-817-2013, 2013
Related subject area
Subject: Hillslope hydrology | Techniques and Approaches: Instruments and observation techniques
Assessment of plot-scale sediment transport on young moraines in the Swiss Alps using a fluorescent sand tracer
Subsurface flow paths in a chronosequence of calcareous soils: impact of soil age and rainfall intensities on preferential flow occurrence
Evaporation, infiltration and storage of soil water in different vegetation zones in the Qilian Mountains: a stable isotope perspective
Groundwater fluctuations during a debris flow event in western Norway – triggered by rain and snowmelt
Satellite rainfall products outperform ground observations for landslide prediction in India
Characterising hillslope–stream connectivity with a joint event analysis of stream and groundwater levels
Structural and functional control of surface-patch to hillslope runoff and sediment connectivity in Mediterranean dry reclaimed slope systems
Distinct stores and the routing of water in the deep critical zone of a snow-dominated volcanic catchment
Hydrological trade-offs due to different land covers and land uses in the Brazilian Cerrado
Impacts of a capillary barrier on infiltration and subsurface stormflow in layered slope deposits monitored with 3-D ERT and hydrometric measurements
Form and function in hillslope hydrology: characterization of subsurface flow based on response observations
Form and function in hillslope hydrology: in situ imaging and characterization of flow-relevant structures
Identification of runoff formation with two dyes in a mid-latitude mountain headwater
Multiple runoff processes and multiple thresholds control agricultural runoff generation
Factors influencing stream baseflow transit times in tropical montane watersheds
Effects of a deep-rooted crop and soil amended with charcoal on spatial and temporal runoff patterns in a degrading tropical highland watershed
The water balance components of undisturbed tropical woodlands in the Brazilian cerrado
Erosion processes in black marl soils at the millimetre scale: preliminary insights from an analogous model
Monitoring hillslope moisture dynamics with surface ERT for enhancing spatial significance of hydrometric point measurements
Development and testing of a large, transportable rainfall simulator for plot-scale runoff and parameter estimation
True colors – experimental identification of hydrological processes at a hillslope prone to slide
Assessment of shallow subsurface characterisation with non-invasive geophysical methods at the intermediate hill-slope scale
Macropore flow of old water revisited: experimental insights from a tile-drained hillslope
Hillslope characteristics as controls of subsurface flow variability
Fluorescent particle tracers in surface hydrology: a proof of concept in a semi-natural hillslope
Soil-water dynamics and unsaturated storage during snowmelt following wildfire
Use of the 3-D scanner in mapping and monitoring the dynamic degradation of soils: case study of the Cucuteni-Baiceni Gully on the Moldavian Plateau (Romania)
A porewater-based stable isotope approach for the investigation of subsurface hydrological processes
Subsurface lateral flow from hillslope and its contribution to nitrate loading in streams through an agricultural catchment during subtropical rainstorm events
The effect of slope steepness and antecedent moisture content on interrill erosion, runoff and sediment size distribution in the highlands of Ethiopia
Surface and subsurface flow effect on permanent gully formation and upland erosion near Lake Tana in the northern highlands of Ethiopia
The benefits of gravimeter observations for modelling water storage changes at the field scale
Shallow soil moisture – ground thaw interactions and controls – Part 1: Spatiotemporal patterns and correlations over a subarctic landscape
Shallow soil moisture – ground thaw interactions and controls – Part 2: Influences of water and energy fluxes
Plot and field scale soil moisture dynamics and subsurface wetness control on runoff generation in a headwater in the Ore Mountains
Fabian Maier, Florian Lustenberger, and Ilja van Meerveld
Hydrol. Earth Syst. Sci., 27, 4609–4635, https://doi.org/10.5194/hess-27-4609-2023, https://doi.org/10.5194/hess-27-4609-2023, 2023
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We used a fluorescent sand tracer with afterglow in combination with sprinkling experiments to visualize and determine the movement of sediments on natural hillslopes. We compared the observed transport patterns with the characteristics of the hillslopes. Results show that the fluorescent sand can be used to monitor sediment redistribution on the soil surface and that infiltration on older hillslopes decreased sediment transport due to more developed vegetation cover and root systems.
Anne Hartmann, Markus Weiler, Konrad Greinwald, and Theresa Blume
Hydrol. Earth Syst. Sci., 26, 4953–4974, https://doi.org/10.5194/hess-26-4953-2022, https://doi.org/10.5194/hess-26-4953-2022, 2022
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Analyzing the impact of soil age and rainfall intensity on vertical subsurface flow paths in calcareous soils, with a special focus on preferential flow occurrence, shows how water flow paths are linked to the organization of evolving landscapes. The observed increase in preferential flow occurrence with increasing moraine age provides important but rare data for a proper representation of hydrological processes within the feedback cycle of the hydro-pedo-geomorphological system.
Guofeng Zhu, Leilei Yong, Xi Zhao, Yuwei Liu, Zhuanxia Zhang, Yuanxiao Xu, Zhigang Sun, Liyuan Sang, and Lei Wang
Hydrol. Earth Syst. Sci., 26, 3771–3784, https://doi.org/10.5194/hess-26-3771-2022, https://doi.org/10.5194/hess-26-3771-2022, 2022
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In arid areas, the processes of water storage have not been fully understood in different vegetation zones in mountainous areas. This study monitored the stable isotopes in the precipitation and soil water of the Xiying River Basin. In the four vegetation zones, soil water evaporation intensities were mountain grassland > deciduous forest > coniferous forest > alpine meadow, and soil water storage capacity was alpine meadow > deciduous forest > coniferous forest > mountain grassland.
Stein Bondevik and Asgeir Sorteberg
Hydrol. Earth Syst. Sci., 25, 4147–4158, https://doi.org/10.5194/hess-25-4147-2021, https://doi.org/10.5194/hess-25-4147-2021, 2021
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Pore pressure is important for the trigger of debris slides and flows. But how, exactly, does the pore pressure vary just before a slide happens? We drilled and installed a piezometer 1.6 m below the ground in a hillslope susceptible to debris flows in western Norway and measured pore pressure and water temperature through the years 2010–2013. We found the largest anomaly in our groundwater data during the storm named Hilde in November in 2013, when a debris flow happened in this slope.
Maria Teresa Brunetti, Massimo Melillo, Stefano Luigi Gariano, Luca Ciabatta, Luca Brocca, Giriraj Amarnath, and Silvia Peruccacci
Hydrol. Earth Syst. Sci., 25, 3267–3279, https://doi.org/10.5194/hess-25-3267-2021, https://doi.org/10.5194/hess-25-3267-2021, 2021
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Satellite and rain gauge data are tested to predict landslides in India, where the annual toll of human lives and loss of property urgently demands the implementation of strategies to prevent geo-hydrological instability. For this purpose, we calculated empirical rainfall thresholds for landslide initiation. The validation of thresholds showed that satellite-based rainfall data perform better than ground-based data, and the best performance is obtained with an hourly temporal resolution.
Daniel Beiter, Markus Weiler, and Theresa Blume
Hydrol. Earth Syst. Sci., 24, 5713–5744, https://doi.org/10.5194/hess-24-5713-2020, https://doi.org/10.5194/hess-24-5713-2020, 2020
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We investigated the interactions between streams and their adjacent hillslopes in terms of water flow. It could be revealed that soil structure has a strong influence on how hillslopes connect to the streams, while the groundwater table tells us a lot about when the two connect. This observation could be used to improve models that try to predict whether or not hillslopes are in a state where a rain event will be likely to produce a flood in the stream.
Mariano Moreno-de-las-Heras, Luis Merino-Martín, Patricia M. Saco, Tíscar Espigares, Francesc Gallart, and José M. Nicolau
Hydrol. Earth Syst. Sci., 24, 2855–2872, https://doi.org/10.5194/hess-24-2855-2020, https://doi.org/10.5194/hess-24-2855-2020, 2020
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This study shifts from present discussions of the connectivity theory to the practical application of the connectivity concept for the analysis of runoff and sediment dynamics in Mediterranean dry slope systems. Overall, our results provide evidence for the feasibility of using the connectivity concept to understand how the spatial distribution of vegetation and micro-topography (including rills) interact with rainfall dynamics to generate spatially continuous runoff and sediment fluxes.
Alissa White, Bryan Moravec, Jennifer McIntosh, Yaniv Olshansky, Ben Paras, R. Andres Sanchez, Ty P. A. Ferré, Thomas Meixner, and Jon Chorover
Hydrol. Earth Syst. Sci., 23, 4661–4683, https://doi.org/10.5194/hess-23-4661-2019, https://doi.org/10.5194/hess-23-4661-2019, 2019
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This paper examines the influence of the subsurface structure on water routing, water residence times, and the hydrologic response of distinct groundwater stores and further investigates their contribution to streamflow. We conclude that deep groundwater from the fractured aquifer system, rather than shallow groundwater, is the dominant source of streamflow, which highlights the need to better characterize the deep subsurface of mountain systems using interdisciplinary studies such as this one.
Jamil A. A. Anache, Edson Wendland, Lívia M. P. Rosalem, Cristian Youlton, and Paulo T. S. Oliveira
Hydrol. Earth Syst. Sci., 23, 1263–1279, https://doi.org/10.5194/hess-23-1263-2019, https://doi.org/10.5194/hess-23-1263-2019, 2019
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We assessed the water balance over 5 years in different land uses typical of the Brazilian Cerrado: tropical woodland, bare land, pasture and sugarcane. Land uses may affect hillslope hydrology and cause trade-offs; the woodland consumes the soil water storage along the dry season, while the agricultural LCLU (pasture and sugarcane) reduces the water consumption in either season, and the aquifer recharge rates may be reduced in forested areas due to increased water demand by the vegetation.
Rico Hübner, Thomas Günther, Katja Heller, Ursula Noell, and Arno Kleber
Hydrol. Earth Syst. Sci., 21, 5181–5199, https://doi.org/10.5194/hess-21-5181-2017, https://doi.org/10.5194/hess-21-5181-2017, 2017
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In our study, we used a spatially and temporally high resolved 3-D ERT in addition to matric potential measurements to monitor the infiltration and subsurface water flow on a hillslope with layered slope deposits. We derived some interesting findings about the capillary barrier effect as a main driving factor for the activation of different flow pathways. Thus, the maintenance or breakdown of a capillary barrier has a decisive influence on the precipitation runoff response of of the catchment.
Lisa Angermann, Conrad Jackisch, Niklas Allroggen, Matthias Sprenger, Erwin Zehe, Jens Tronicke, Markus Weiler, and Theresa Blume
Hydrol. Earth Syst. Sci., 21, 3727–3748, https://doi.org/10.5194/hess-21-3727-2017, https://doi.org/10.5194/hess-21-3727-2017, 2017
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This study investigates the temporal dynamics and response velocities of lateral preferential flow at the hillslope. The results are compared to catchment response behavior to infer the large-scale implications of the observed processes. A large portion of mobile water flows through preferential flow paths in the structured soils, causing an immediate discharge response. The study presents a methodological approach to cover the spatial and temporal domain of these highly heterogeneous processes.
Conrad Jackisch, Lisa Angermann, Niklas Allroggen, Matthias Sprenger, Theresa Blume, Jens Tronicke, and Erwin Zehe
Hydrol. Earth Syst. Sci., 21, 3749–3775, https://doi.org/10.5194/hess-21-3749-2017, https://doi.org/10.5194/hess-21-3749-2017, 2017
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Rapid subsurface flow in structured soils facilitates fast vertical and lateral redistribution of event water. We present its in situ exploration through local measurements and irrigation experiments. Special emphasis is given to a coherent combination of hydrological and geophysical methods. The study highlights that form and function operate as conjugated pairs. Dynamic imaging through time-lapse GPR was key to observing both and to identifying hydrologically relevant structures.
Lukáš Vlček, Kristýna Falátková, and Philipp Schneider
Hydrol. Earth Syst. Sci., 21, 3025–3040, https://doi.org/10.5194/hess-21-3025-2017, https://doi.org/10.5194/hess-21-3025-2017, 2017
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The role of mountain headwater area in hydrological cycle was investigated at two opposite hillslopes covered by mineral and organic soils. Similarities and differences in percolation and preferential flow paths between the hillslopes were identified by sprinkling experiments with Brilliant Blue and Fluorescein. The dye solutions infiltrated into the soil and continued either as lateral subsurface pipe flow (organic soil), or percolated vertically towards the bedrock (mineral soil).
Shabnam Saffarpour, Andrew W. Western, Russell Adams, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci., 20, 4525–4545, https://doi.org/10.5194/hess-20-4525-2016, https://doi.org/10.5194/hess-20-4525-2016, 2016
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A variety of threshold mechanisms influence the transfer of rainfall to runoff from catchments. Some of these mechanisms depend on the occurrence of intense rainfall and others depend on the catchment being wet. This article first provides a framework for considering which mechanisms are important in different situations and then uses that framework to examine the behaviour of a catchment in Australia that exhibits a mix of both rainfall intensity and catchment wetness dependent thresholds.
Lyssette E. Muñoz-Villers, Daniel R. Geissert, Friso Holwerda, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci., 20, 1621–1635, https://doi.org/10.5194/hess-20-1621-2016, https://doi.org/10.5194/hess-20-1621-2016, 2016
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This study provides an important first step towards a better understanding of the hydrology of tropical montane regions and the factors influencing baseflow mean transit times (MTT). Our MTT estimates ranged between 1.2 and 2.7 years, suggesting deep and long subsurface pathways contributing to sustain dry season flows. Our findings showed that topography and subsurface permeability are the key factors controlling baseflow MTTs. Longest MTTs were found in the cloud forest headwater catchments.
Haimanote K. Bayabil, Tigist Y. Tebebu, Cathelijne R. Stoof, and Tammo S. Steenhuis
Hydrol. Earth Syst. Sci., 20, 875–885, https://doi.org/10.5194/hess-20-875-2016, https://doi.org/10.5194/hess-20-875-2016, 2016
P. T. S. Oliveira, E. Wendland, M. A. Nearing, R. L. Scott, R. Rosolem, and H. R. da Rocha
Hydrol. Earth Syst. Sci., 19, 2899–2910, https://doi.org/10.5194/hess-19-2899-2015, https://doi.org/10.5194/hess-19-2899-2015, 2015
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We determined the main components of the water balance for an undisturbed cerrado.
Evapotranspiration ranged from 1.91 to 2.60mm per day for the dry and wet seasons, respectively. Canopy interception ranged from 4 to 20% and stemflow values were approximately 1% of gross precipitation.
The average runoff coefficient was less than 1%, while cerrado deforestation has the potential to increase that amount up to 20-fold.
The water storage may be estimated by the difference between P and ET.
J. Bechet, J. Duc, M. Jaboyedoff, A. Loye, and N. Mathys
Hydrol. Earth Syst. Sci., 19, 1849–1855, https://doi.org/10.5194/hess-19-1849-2015, https://doi.org/10.5194/hess-19-1849-2015, 2015
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High-resolution three-dimensional point clouds are used to analyse erosion processes at the millimetre scale. The processes analysed here play a role in the closure of cracks. We demonstrated how micro-scale infiltration can influence the degradation of soil surface by inducing downward mass movements that are not reversible. This development will aid in designing future experiments to analyse processes such as swelling, crack closure, micro-landslides, etc.
R. Hübner, K. Heller, T. Günther, and A. Kleber
Hydrol. Earth Syst. Sci., 19, 225–240, https://doi.org/10.5194/hess-19-225-2015, https://doi.org/10.5194/hess-19-225-2015, 2015
T. G. Wilson, C. Cortis, N. Montaldo, and J. D. Albertson
Hydrol. Earth Syst. Sci., 18, 4169–4183, https://doi.org/10.5194/hess-18-4169-2014, https://doi.org/10.5194/hess-18-4169-2014, 2014
P. Schneider, S. Pool, L. Strouhal, and J. Seibert
Hydrol. Earth Syst. Sci., 18, 875–892, https://doi.org/10.5194/hess-18-875-2014, https://doi.org/10.5194/hess-18-875-2014, 2014
S. Popp, D. Altdorff, and P. Dietrich
Hydrol. Earth Syst. Sci., 17, 1297–1307, https://doi.org/10.5194/hess-17-1297-2013, https://doi.org/10.5194/hess-17-1297-2013, 2013
J. Klaus, E. Zehe, M. Elsner, C. Külls, and J. J. McDonnell
Hydrol. Earth Syst. Sci., 17, 103–118, https://doi.org/10.5194/hess-17-103-2013, https://doi.org/10.5194/hess-17-103-2013, 2013
S. Bachmair and M. Weiler
Hydrol. Earth Syst. Sci., 16, 3699–3715, https://doi.org/10.5194/hess-16-3699-2012, https://doi.org/10.5194/hess-16-3699-2012, 2012
F. Tauro, S. Grimaldi, A. Petroselli, M. C. Rulli, and M. Porfiri
Hydrol. Earth Syst. Sci., 16, 2973–2983, https://doi.org/10.5194/hess-16-2973-2012, https://doi.org/10.5194/hess-16-2973-2012, 2012
B. A. Ebel, E. S. Hinckley, and D. A. Martin
Hydrol. Earth Syst. Sci., 16, 1401–1417, https://doi.org/10.5194/hess-16-1401-2012, https://doi.org/10.5194/hess-16-1401-2012, 2012
G. Romanescu, V. Cotiuga, A. Asandulesei, and C. Stoleriu
Hydrol. Earth Syst. Sci., 16, 953–966, https://doi.org/10.5194/hess-16-953-2012, https://doi.org/10.5194/hess-16-953-2012, 2012
J. Garvelmann, C. Külls, and M. Weiler
Hydrol. Earth Syst. Sci., 16, 631–640, https://doi.org/10.5194/hess-16-631-2012, https://doi.org/10.5194/hess-16-631-2012, 2012
B. Zhang, J. L. Tang, Ch. Gao, and H. Zepp
Hydrol. Earth Syst. Sci., 15, 3153–3170, https://doi.org/10.5194/hess-15-3153-2011, https://doi.org/10.5194/hess-15-3153-2011, 2011
M. B. Defersha, S. Quraishi, and A. Melesse
Hydrol. Earth Syst. Sci., 15, 2367–2375, https://doi.org/10.5194/hess-15-2367-2011, https://doi.org/10.5194/hess-15-2367-2011, 2011
T. Y. Tebebu, A. Z. Abiy, A. D. Zegeye, H. E. Dahlke, Z. M. Easton, S. A. Tilahun, A. S. Collick, S. Kidnau, S. Moges, F. Dadgari, and T. S. Steenhuis
Hydrol. Earth Syst. Sci., 14, 2207–2217, https://doi.org/10.5194/hess-14-2207-2010, https://doi.org/10.5194/hess-14-2207-2010, 2010
B. Creutzfeldt, A. Güntner, S. Vorogushyn, and B. Merz
Hydrol. Earth Syst. Sci., 14, 1715–1730, https://doi.org/10.5194/hess-14-1715-2010, https://doi.org/10.5194/hess-14-1715-2010, 2010
X. J. Guan, C. J. Westbrook, and C. Spence
Hydrol. Earth Syst. Sci., 14, 1375–1386, https://doi.org/10.5194/hess-14-1375-2010, https://doi.org/10.5194/hess-14-1375-2010, 2010
X. J. Guan, C. Spence, and C. J. Westbrook
Hydrol. Earth Syst. Sci., 14, 1387–1400, https://doi.org/10.5194/hess-14-1387-2010, https://doi.org/10.5194/hess-14-1387-2010, 2010
E. Zehe, T. Graeff, M. Morgner, A. Bauer, and A. Bronstert
Hydrol. Earth Syst. Sci., 14, 873–889, https://doi.org/10.5194/hess-14-873-2010, https://doi.org/10.5194/hess-14-873-2010, 2010
Cited articles
Anderson, S. P., Dietrich, W. E., Montgomery, D. R., Conrad, M. E., ands Loague, K.: Subsurface flow paths in a steep, unchanneled catchment, Water Resour. Res., 33, 2637–2653, 1997.
Barnard, H. R., Graham, C. B., Van Verseveld, W. J., Brooks, J. R., Bond, B. J., and McDonnell, J. J.: Mechanistic assessment of hillslope transpiration controls of diel subsurface flow: a steady-state irrigation approach, Ecohydrology, 3, 133–142, 2010.
Bishop, K., Seibert, J., Köhler, S., and Laudon, H.: Resolving the double paradox of rapidly old water with variable responses in runoff chemistry, Hydrol. Process., 18, 185–189, 2004.
Bishop, K. H.: Episodic Increases in Stream Acidity, Catchment Flow Pathways and Hydrograph Separation, PhD Thesis, Univ. of Cambridge, Cambridge, 246 pp., 1991.
Botter, G., Bertuzzo, E., and Rinaldo, A.: Transport in the hydrologic response: travel time distributions, soil moisture dynamics, and the old water paradox, Water Resour. Res., 46, W03514, https://doi.org/10.1029/2009WR008371, 2010.
Brooks, R., Barnard, R., Coulombe, R., and McDonnell, J. J.: Ecohydrologic separation of water between trees and streams in a Mediterranean climate, Nat. Geosci., 3, 100–104, https://doi.org/10.1038/NGEO722, 2010.
Buttle, J. M. and Sami, K.: Recharge processes during snowmelt – an isotopic and hydrometric investigation, Hydrol. Process., 4, 343–360, 1990.
Collins, R., Jenkins, A., and Harrow, M.: The contribution of old and new water to a storm hydrograph determined by tracer addition to a whole catchment, Hydrol. Process., 14, 701–711, 2000.
Corapcioglu, M. Y. and Choi, H.: Modeling colloid transport in unsaturated porous media and validation with laboratory column data, Water Resour. Res., 32, 3437–3449, 1999.
Czarnomski, N. M., Moore, G. W., Pypker, T. G., Licata, J., and Bond, B. J.: Precision and accuracy of three alternative instruments for measuring soil water content in two forest soils of the Pacific Northwest, Can. J. Forest Res., 35, 1867–1876, https://doi.org/10.1139/x05-121, 2005.
Davies, J., Beven, K., Rodhe, A., Nyberg, L., and Bishop, K.: Integrated modeling of flow and residence times at the catchment scale with multiple interacting pathways, Water Resour. Res., 49, 4738–4750, https://doi.org/10.1002/wrcr.20377, 2013.
Dunn, S. M., McDonnell, J. J., and Vaché, K. B.: Factors influencing the residence time of catchment waters: a virtual experiment approach, Water Resour. Res., 43, W06408, https://doi.org/10.1029/2006WR005393, 2007.
Fenicia, F., Wrede, S., Kavetski, D., Pfister, L., Hoffmann, L., Savenije, H. H. G., and McDonnell, J. J.: Assessing the impact of mixing assumptions on the estimation of streamwater mean residence time, Hydrol. Process., 24, 1730–1741, 2010.
Feyen, H., Wunderli, H., Wydler, H., and Papritz, A.: A tracer experiment to study flow paths of water in a forest soil, J. Hydrol., 225, 155–167, 1999.
Gabrielli, C. P., McDonnell, J. J., and Jarvis, W. T.: The role of bedrock groundwater in rainfall–runoff response at hillslope and catchment scales, J. Hydrol., 450–451, 117–133, 2012.
Graham, C. B., van Verseveld, W. J., Barnard, H. R., and McDonnell, J. J.: Estimating the deep seepage component of the hillslope and catchment water balance within a measurement uncertainty framework, Hydrol. Process., 24, 3631–3647, 2010.
Harman, C. J.: Time-variable transit time distributions and transport: Theory and application to storage-dependent transport of chloride in a watershed, Water Resour. Res., 51, 1–30, https://doi.org/10.1002/2014WR015707, 2015.
Harr, R. D.: Water flux in soil and subsoil on a steep forested slope, J. Hydrol., 33, 37–58, 1977.
Harr, R. D. and Ranken, D. W.: Movement of water through forested soils in steep topography, Coniferous Forest Biome Internal Report 117, University of Washington, Seattle, 1–19, 1972.
Hopp, L. and McDonnell, J. J.: Connectivity at the hillslope scale: Identifying interactions between storm size, bedrock permeability, slope angle and soil depth, J. Hydrol., 376, 378–391, https://doi.org/10.1016/j.jhydrol.2009.07.047, 2009.
Hornberger, G. M., Beven, K. J., and Germann, P. F.: Inferences about solute transport in macroporous forest soils from time series models, Geoderma, 46, 249–262, 1990.
Hrachowitz, M., Savenije, H., Bogaard, T. A., Tetzlaff, D., and Soulsby, C.: What can flux tracking teach us about water age distribution patterns and their temporal dynamics?, Hydrol. Earth Syst. Sci., 17, 533–564, https://doi.org/10.5194/hess-17-533-2013, 2013.
Jackson, C. R., Du, E., Klaus, J., Griffiths, N. A., Bitew, M., and McDonnell, J. J.: Interactions among hydraulic conductivity distributions, subsurface topography, and transport thresholds revealed by a multitracer hillslope irrigation experiment, Water Resour. Res., 52, 6186–6206, https://doi.org/10.1002/2015WR018364, 2016.
Jones, J. P., Sudicky, E. A., Brookfield, A. E., and Park, Y- J.: An assessment of the tracer-based approach to quantifying groundwater contributions to streamflow, Water Resour. Res., 42, W02407, https://doi.org/10.1029/2005WR004130, 2006.
Jury, W. A. and Sposito, G.: Field calibration and validation of solute transport models for the unsaturated zone, Soil Sci. Soc. Am. J., 49, 1331–1341, 1985.
Kendall, K. A, Shanley, J. B., and McDonnell, J. J.: A hydrometric and geochemical approach to test the transmissivity feedback hypothesis during snowmelt, J. Hydrol., 219, 188–205, 1999.
Kienzler, P. M. and Naef, F.: Subsurface storm flow formation at different hillslopes and implications for the “old water paradox”, Hydrol. Process., 22, 104–116, https://doi.org/10.1002/hyp.6687, 2008.
Kirchner, J. W.: A double paradox in catchment hydrology and geochemistry, Hydrol. Process., 17, 871–874, 2003.
Klaus, J., Chun, K. P., McGuire, K. J., and McDonnell, J. J.: Temporal dynamics of catchment transit times from stable isotope data, Water Resour. Res., 51, 4208–4223, https://doi.org/10.1002/2014WR016247, 2015.
Martinec, J.: Subsurface flow from snowmelt traced by tritium, Water Resour. Res., 11, 496–498, 1975.
McDonnell, J. J.: A rationale for old water discharge through macropores in a steep, humid catchment, Water Resour. Res., 26, 2821–2832, 1990.
McDonnell, J. J. and Beven, K.: Debates – the future of hydrological sciences: A (common) path forward? A call to action aimed at understanding velocities, celerities, and residence time distributions of the headwater hydrograph, Water Resour. Res., 50, 5342–5350, https://doi.org/10.1002/2013WR015141, 2014.
McGuire, K. J.: Water Residence Time and Runoff Generation in the Western Cascades of Oregon, PhD Thesis, Oregon State University, Corvallis, 2004.
McGuire, K. J. and McDonnell, J. J.: A review and evaluation of catchment transit time modeling, J. Hydrol., 330, 543–563, 2006.
McGuire, K. J. and McDonnell, J. J.: Hydrological connectivity of hillslopes and streams: Characteristic time scales and nonlinearities, Water Resour. Res., 46, 1–17, https://doi.org/10.1029/2010WR009341, 2010.
McGuire, K. J., McDonnell, J. J., and Weiler, M.: Integrating tracer experiments with modeling to infer water transit times, Adv. Water Resour., 30, 824–837, 2007.
Nash, J. E. and Sutcliffe, J. V.: River flow forecasting through conceptual models, I, A discussion of principles, J. Hydrol., 10, 282–290, 1970.
Nyberg, L., Rodhe, A., and Bishop, K.: Water transit times and flow paths from two line injections of 3H and 36Cl in a microcatchment at Gårdsjön, Sweden, Hydrol. Process., 1, 1557–1575, 1999.
Radulovich, R., Sollins, P., Baveye, P., and Solorzano, E.: Bypass water flow through unsaturated microaggregated tropical soils, Soil Sci. Soc. Am. J., 56, 721–726, 1992.
Ranken, D. W.: Hydrologic Properties of Soil and Subsoil on a Steep, Forested Slope, MS Thesis, Oregon State University, Corvallis, 1974.
Rasmussen, T. C., Baldwin, R. H., Dowd, J. F., and Williams, A. G.: Tracer vs. pressure wave velocities through unsaturated saprolite, Soil Sci. Soc. Am. J., 64, 75–85, 2000.
Rinaldo, A., Beven, K. J., Bertuzzo, E. L. Nicotina, L., Davies, J., Fiori, A., Russo, D., and Botter. G.: Catchment travel time distributions and water flow in soils, Water Resour. Res., 47, W07537, https://doi.org/10.1029/2011WR010478, 2011.
Rodhe, A., Nyberg, L., and Bishop, K.: Transit times for water in a small till catchment from a step shift in the oxygen-18 content of the water input, Water Resour. Res., 32, 3497–3511, 1996.
Sayama, T. and McDonnell, J. J.: A new time-space accounting scheme to predict stream water residence time and hydrograph source components at the watershed scale, Water Resour. Res., 45, W07401, https://doi.org/10.1029/2008WR007549, 2009.
Scaini, A., Audebert, M., Hissler, C., Fenicia, F., Gourdol, L., Pfister, L., and Beven, K. J.: Velocity and celerity dynamics at plot scale inferred from artificial tracing experiments and time-lapse ERT, J. Hydrol., 546, 28–43, 2017.
Seeger, S. and Weiler, M.: Reevaluation of transit time distributions, mean transit times and their relation to catchment topography, Hydrol. Earth Syst. Sci., 18, 4751–4771, https://doi.org/10.5194/hess-18-4751-2014, 2014.
Seibert, J. and McDonnell, J. J.: On the dialog between experimentalist and modeler in catchment hydrology: use of soft data for multicriteria model calibration, Water Resour. Res., 38, 1241, https://doi.org/10.1029/2001WR000978, 2002.
Sollins, P., Cromack, K. J., McCorison, F. M., Waring, R. H., and Harr, R. D.: Changes in nitrogen cycling at an old-growth Douglas-fir site after disturbance, J. Environ. Qual., 10, 37–42, 1981.
Stephens, D. B., Hsu, K., Prieksat, M. A., Ankeny, M. D., Blandford, N., Roth, T. L., Kelsey, J. A., and Whitworth, J. R.,: A comparison of estimated and calculated effective porosity, Hydrogeol. J., 6, 156–165, 1998.
Swanson, F. J, and James, M. E.: Geology and geomorphology of the H. J. Andrews Experimental Forest, western Cascades, Oregon. Res. Pap. PNW-188, US Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, Portland, OR, 1975.
Tani, M.: Runoff generation processes estimated from hydrological observations on a steep forested hillslope with a thin soil layer, J. Hydrol., 200, 84–109, 1997.
Torres, R.: A threshold condition for soil–water transport, Hydrol. Process., 16, 2703–2706, https://doi.org/10.1002/hyp.5060, 2002.
Torres, R., Dietrich, W. E., Montgomery, D. R., Anderson, S. P., and Loague, K.: Unsaturated zone processes and the hydrologic response of a steep, unchanneled catchment, Water Resour. Res., 34, 1865–1879, 1998.
Triska, F. J., Sedell, J. R., Cromack, K., Gregory, S. V., and McCorison, F. M.: Nitrogen budget for a small coniferous forest stream, Ecol. Monogr., 54, 119–140, 1984.
Tromp-van Meerveld, H. J. and Weiler, M.: Hillslope dynamics modeled with increasing complexity, J. Hydrol., 361, 24–40, 2008.
Vaché, K. B. and McDonnell, J. J.: A process-based rejectionist framework for evaluating catchment runoff model structure, Water Resour. Res., 42, W02409, https://doi.org/10.1029/2005WR004247, 2006.
van der Velde, Y., de Rooij, G. H., Rozemeijer, J. C., van Geer, F. C., and Broers, H. P.: Nitrate response of a lowland catchment: on the relation between stream concentration and travel time distribution dynamics, Water Resour. Res., 46, W11534, https://doi.org/10.1029/2010WR009105, 2010.
van der Velde, Y., Torfs, P. J. J. F., van der Zee, S. E. A. T. M., and Uijlenhoet, R.: Quantifying catchment-scale mixing and its effects on time-varying travel time distributions, Water Resour. Res., 48, W06536, https://doi.org/10.1029/2011WR011310, 2012.
van Stiphout, T. P. J., van Lanen, H. A. J., Boersma, O. H., and Bouma, J.: The effect of bypass flow and internal catchment of rain on the water regime in a clay loam grassland soil, J. Hydrol. 95, 1–11, 1987.
van Verseveld. W. J., McDonnell, J. J., and Lajtha, K: A mechanistic assessment of nutrient flushing at the catchment scale, J. Hydrol., 358, 268–287, 2008.
Weiler, M. and McDonnell, J.: Virtual experiments: a new approach for improving process conceptualization in hillslope hydrology, J. Hydrol., 285, 3–18, 2004.
Weiler, M. and McDonnell, J.: Testing nutrient flushing hypotheses at the hillslope scale: A virtual experiment approach, J. Hydrol., 319, 339–356, 2005.
Weiler, M. and McDonnell, J. J.: Conceptualizing lateral preferential flow and flow networks and simulating the effects on gauged and ungauged hillslopes, Water Resour. Res., 43, W03403, https://doi.org/10.1029/2006WR004867, 2007.
Weiler, M., Naef, F., and Leibundgut, C.: Study of runoff generation on hillslopes using tracer experiments and physically based numerical model, IAHS-AISH P., 248, 353–360, 1998.
Wienhöfer, J., Germer, K., Lindenmaier, F., Färber, A., and Zehe, E.: Applied tracers for the observation of subsurface stormflow at the hillslope scale, Hydrol. Earth Syst. Sci., 13, 1145–1161, https://doi.org/10.5194/hess-13-1145-2009, 2009.
Wigmosta, M. S. and Lettenmaier, D. P.: A comparison of simplified methods for routing topographically driven subsurface flow, Water Resour. Res., 35, 255–264, 1999.
Williams, A. G., Dowd, J. F., and Meyles, E. W.: A new interpretation of kinematic stormflow generation, Hydrol. Process., 16, 2791–2803, 2002.
Yano, Y., Lajtha, K., Sollins, P., and Caldwell, B. A.: Chemistry and dynamics of dissolved organic matter in a temperate coniferous forest on andic soils: effects of litter quality, Ecosystems, 8, 286–300, 2005.
Short summary
How stream water responds immediately to a rainfall or snow event, while the average time it takes water to travel through the hillslope can be years or decades and is poorly understood. We assessed this difference by combining a 24-day sprinkler experiment (a tracer was applied at the start) with a process-based hydrologic model. Immobile soil water, deep groundwater contribution and soil depth variability explained this difference at our hillslope site.
How stream water responds immediately to a rainfall or snow event, while the average time it...
