Runoff generation in mountain catchments: long-term hydrological monitoring in the Rio Vauz Catchment, Italy

G. Zuecco, D. Penna, M. Borga


Trying to obtain a more detailed understanding of the hydrological functioning of mountain catchments represents an important challenge in the effort of counteracting possible consequences of climate and land use change on water resources availability. Long-term (> 10 years) hydro-meteorological monitoring in small (typically < 10 km2) experimental catchments constitutes a valuable tool to achieve these goal. One of these sites is the Rio Vauz Catchment (1.9 km2), in the Italian Dolomites, that represents an excellent example of long-term snowmelt-dominated catchment in Dolomitic regions. The strong elevation gradient of the Rio Vauz Catchment and the different physiographic properties of its nested subcatchments make this a unique site for investigating fundamental runoff generation mechanisms in mountain headwaters. In this work, we provide a review of physical processes that have been inferred from 12 years of hydrological monitoring in this catchment. We present the available dataset and summarize the main hydrological mechanisms that explain the internal functioning of the Rio Vauz Catchment, primarily focusing on three characterizing hydrological behaviours, namely thresholds, hysteresis and connectivity. The main control on surface and subsurface runoff threshold response is constituted by a combination of soil moisture antecedent conditions, rainfall amount and topography. Changes in hysteresis patterns (clockwise and anti-clockwise loops) between streamflow and soil moisture, water table depth and electrical conductivity were governed by distinct runoff generation processes and rainfall event characteristics. Hillslope-riparian-stream subsurface connectivity was controlled by antecedent wetness conditions and rainfall amount. The composition in environmental tracers (stable isotopes of water and electrical conductivity) in different water sources and the application of tracer-based mixing models helped to distinguish the geographical sources to runoff and to quantify the role of rainfall and snowmelt in streamflow. Finally, we define a perceptual model of runoff generation processes for dry and wet conditions that can be considered representative for many mountain headwater catchments in the world.


mountain headwater catchment; long-term monitoring; runoff generation processes; tracers; hydrological functioning

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Abrahamson, I. 2014. An annotated bibliography of scientific literature on research and management activities conducted in Tenderfoot Creek Experimental Forest. Missoula, MT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.

Aich, V., Zimmermann, A., Elsenbeer, H. 2014. Quantification and interpretation of suspended-sediment discharge hysteresis patterns: how much data do we need? Catena 122, 120-129.

Ali, G., Oswald, C.J., Spence, C., Cammeraat, E.L.H., McGuire, K.J., Meixner, T., Reaney, S. M. 2013. Towards a unified threshold-based hydrological theory: necessary components and recurring challenges. Hydrological Processes 27, 313-318.

Ali, G., Tetzlaff, D., McDonnell, J.J., Soulsby, C., Carey, S., Laudon, H., McGuire, K., Buttle, J., Seibert, J., Shanley, J. 2015. Comparison of threshold hydrologic response across northern catchments. Hydrological Processes 29, 3575-3591.

Allen, D.M., Whitfield, P.H., Werner, A. 2010. Groundwater level responses in temperate mountainous terrain: regime classification, and linkages to climate and streamflow. Hydrological Processes 24, 3392-3412.

Amelia, A.A., Amvrosiadib, N., Grabs, T., Laudon, H., Creed, I.F., McDonnell, J.J., Bishop, K. 2016. Hillslope permeability architecture controls on subsurface transit time distribution and flow paths. Journal of Hydrology 543, 17-30.

Aubert, A.H., Gascuel-Odoux, C., Merot, P. 2013. Annual hysteresis of water quality: a method to analyse the effect of intra- and inter-annual climatic conditions. Journal of Hydrology 478, 29-39.

Bailey, S.W., Brousseau, P.A., McGuire, K.J., Ross, D.S. 2014. Influence of landscape position and transient water table on soil development and carbon distribution in a steep, headwater catchment. Geoderma 226-227, 279-289.

Benettin, P., Bailey, S.W., Campbell, J.L., Green, M.B., Rinaldo, A., Likens, G.E., McGuire, K.J., Botter, G. 2015. Linking water age and solute dynamics in streamflow at the Hubbard Brook Experimental Forest, NH, USA. Water Resources Research 51, 9256-9272.

Blume, T., van Meerveld, H.J. 2015. From hillslope to stream: methods to investigate subsurface connectivity. Wiley Interdisciplinary Reviews: Water 2, 177-198.

Bosellini, A., Gianolla, P., Stefani, M. 2003. Geology of the Dolomites. Episodes 26, 181-185.

Bracken, L.J., Croke J. 2007. The concept of hydrological connectivity and its contribution to understanding runoff-dominated geomorphic systems. Hydrological Processes 21, 1749-1763.

Bracken, L.J., Wainwright, J., Ali, G.A., Tetzlaff, D., Smith, M.W., Reaney, S.M., Roy, A.G. 2013. Concepts of hydrological connectivity: Research approaches, pathways and future agendas. Earth-Science Reviews 119, 17-34.

Butturini, A., Gallart, F., Latron, J., Vazquez, E., Sabater, F. 2006. Cross-site comparison of variability of DOC and nitrate c-q hysteresis during the autumn-winter period in three Mediterranean headwater streams: a synthetic approach. Biogeochemistry 77, 327-349.

Camporese, M., Penna, D., Borga, M., Paniconi, C. 2014. A field and modeling study of nonlinear storage-discharge dynamics for an Alpine headwater catchment. Water Resources Research 50, 806-822.

Carey, S.K., Quinton, W.L. 2005. Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment. Hydrological Processes 19, 95-114.

Carey, S.K., Woo, M. 2001. Slope runoff processes and flow generation in a subarctic, subalpine catchment. Journal of Hydrology 253, 110-129.

Christophersen, N., Neal, C., Hooper, R.P., Vogt, R.D., Andersen, S. 1990. Modelling streamwater chemistry as a mixture of soilwater end members—a step towards second-generation acidification models. Journal of Hydrology 116, 307-320.

Cohen, J., Ye, H., Jones, J. 2015. Trends and variability in rain-on-snow events. Geophysical Research Letters 42.

Davies, J.A.C., Beven, K. 2015. Hysteresis and scale in catchment storage, flow, and transport. Hydrological Processes 29, 3604-3615.

Detty, J. M., McGuire, K.J. 2008. Evidence of process complexity and hydrologic threshold responses in a small headwater catchment. In CUAHSI Biennial Colloquium on Hydrologic Science and Engineering: Resilience and Vulnerability of Natural and Managed Hydrologic Systems (14-16 July, Boulder, Colorado, USA).

Detty, J.M., McGuire, K.J. 2010a. Topographic controls on shallow groundwater dynamics: Implications of hydrologic connectivity between hillslopes and riparian zones in a till mantled catchment. Hydrological Processes 24, 2222-2236.

Detty, J.M., McGuire, K.J. 2010b. Threshold changes in storm runoff generation at a till-mantled headwater catchment. Water Resources Research 46, W07525.

Doglioni, C., Carminati, E., 2008. Structural styles and Dolomites field trip. Memorie Descrittive della Carta Geologica d’Italia, vol. 82, pp. 1-293.

Emanuel R.E., Epstein, H.E., McGlynn, B.L., Welsch, D.L., Muth, D.J., D’Odorico, P. 2010. Spatial and temporal controls on watershed ecohydrology in the northern Rocky Mountains. Water Resources Research 46, W11553.

Evans C., Davies, T.D. 1998. Causes of concentration/discharge hysteresis and its potential as a tool for analysis of episode geochemistry. Water Resources Research 34, 129-137.

Fang, X., Pomeroy, J.W., Ellis, C.R., MacDonald, M.K., DeBeer, C.M., Brown, T. 2013. Multi-variable evaluation of hydrological model predictions for a headwater basin in the Canadian Rocky Mountains. Hydrology and Earth System Sciences 17, 1635-1659.

Farrick, K.K., Branfireun, B.A. 2014. Soil water storage, rainfall and runoff relationships in a tropical dry forest catchment. Water Resources Research 50, 9236-9250.

Fischer, B.M.C., Rinderer, M., Schneider, P., Ewen, T., Seibert, J. 2015. Contributing sources to baseflow in pre-alpine headwaters using spatial snapshot sampling. Hydrological Processes 29, 5321-5336.

Fovet, O., Ruiz, L., Hrachowitz, M., Faucheux, M., Gascuel-Odoux, C. 2015. Hydrological hysteresis and its value for assessing process consistency in catchment conceptual models. Hydrology and Earth System Sciences 19, 105-123.

Frisbee, M.D., Phillips, F.M., Weissmann, G.S., Brooks, P.D., Wilson, J.L., Campbell, A.R., Liu F. 2012. Unravelling the mysteries of the large watershed black box: Implications for the streamflow response to climate and landscape perturbations. Geophysical Research Letters 39, L01404.

Fu, C., Cheng, J., Jiang, H., Dong, L. 2013. Threshold behavior in a fissured granitic catchment in southern China: (1) analysis of field monitoring results. Water Resources Research 49, 1-17. Doi: 10.1002/wrcr.20191.

Gallart, F., Llorens, P., Latron, J., Regüés, D. 2002. Hydrological processes and their seasonal controls in a small Mediterranean mountain catchment in the Pyrenees. Hydrology and Earth System Sciences 6, 527-537., 2002.

Gannon, J.P., Bailey, S.W., McGuire, K.J. 2014. Organizing groundwater regimes and response thresholds by soils: A framework for understanding runoff generation in a headwater catchment. Water Resources Research 50, 8403-8419.

Gannon, J.P., Bailey, S.W., McGuire, K.J., Shanley, J.B. 2015. Flushing of distal hillslopes as an alternative source of stream dissolved organic carbon in a headwater catchment. Water Resources Research 51 (10), 8114-8128.

Grabs, T.J., Jencso, K.G., McGlynn, B.L., Seibert, J. 2010. Calculating terrain indices along streams: A new method for separating stream sides. Water Resources Research 46, W12536.

Green, M.B., Laursen, B.K., Campbell, J.L., McGuire, K.J., Kelsey, E.P. 2015. Stable water isotopes suggest sub-canopy water recycling in a northern forested catchment. Hydrological Processes 29, 5193-5202.

Haga, H., Matsumoto, Y., Matsutani, J., Fujita, M., Nishida, K., Sakamoto, Y. 2005. Flow paths, rainfall properties, and antecedent soil moisture controlling lags to peak discharge in a granitic unchanneled catchment. Water Resources Research 41, W12410.

Hewlett, J.D., Hibbert, A.R. 1967. Factors affecting the response of small watersheds to precipitation in humid areas. In: W. Sopper, H.W. Lull, H. (Eds.), Forest Hydrology, Pergamon, Oxford, pp. 275-290.

Holko, L., Kostka, Z. 2010. Hydrological processes in mountains – knowledge gained in the Jalovecky Creek catchment, Slovakia. IAHS Publications 336, 84-89.

Holko, L., Kostka, Z. 2006. Hydrological research in a high-mountain catchment of the Jalovecký creek. Journal of Hydrology and Hydromechanics 54 (2), 192-206.

Holko, L., Gorbachova, L. Kostka, Z. 2011. Snow hydrology in central Europe. Geography Compass 5, 200-218.

Holko, L., Holzmann, H., de Lima, M.I.P., de Lima, J.L.M.P. 2015. Hydrological research in small catchments – an approach to improve knowledge on hydrological processes and global change impacts. Journal of Hydrology and Hydromechanics 63 (3), 181-182.

Hooper, R.P., Christophersen, N., Peters N.E. 1990. Modelling streamwater chemistry as a mixture of soilwater end members—an application to the Panola Mountain Catchment, Georgia, USA. Journal of Hydrology 116, 321-343.

Inamdar, S., Dhillon, G., Singh, S., Dutta, S., Levia, D., Scott, D., Mitchell, M., van Stan, J., McHale, P. 2013. Temporal variation in end-member chemistry and its influence on runoff mixing patterns in a forested, Piedmont catchment. Water Resources Research 49, 1828-1844,

James, A.L., Roulet, N.T. 2007. Investigating hydrologic connectivity and its association with threshold change in runoff response in a temperate forested watershed. Hydrological Processes 21, 3391–3408.

Jasechko, S., Kirchner, J.W., Welker, J.M., McDonnell, J.J. 2016. Substantial proportion of global streamflow less than three months old. Nature Geoscience 8, 126-129.

Jasechko, S., Wassenaar, L.I., Mayer, B. 2017. Isotopic evidence for widespread cold-season-biased groundwater recharge and young streamflow across central Canada. Hydrological Processes 31, 2196-2209.

Jencso, K.G., McGlynn, B.L., Gooseff, M.N., Wondzell, S.M., Bencala, K.E., Marshall L.A. 2009. Hydrologic connectivity between landscapes and streams: Transferring reach- and plot-scale understanding to the catchment scale. Water Resources Research 45, W04428.

Jencso, K.G., McGlynn, B.L., Gooseff, M.N., Bencala, K.E., Wondzell, S.M. 2010. Hillslope hydrologic connectivity controls riparian groundwater turnover: Implications of catchment structure for riparian buffering and stream water sources. Water Resources Research 46, W10524.

Juras, R., Pavlásek, J., Vitvar, T., Šanda, M., Holub, J., Jancovec, J., Linda, M. 2016. Isotopic tracing of the outflow during artificial rain-on-snow event. Journal of Hydrology 541, 1145-1154.

Kaiser, K.E., McGlynn, B.L., Emanuel R.E. 2013. Ecohydrology of an outbreak: Mountain pine beetle impacts trees in drier landscape positions first. Ecohydrology 6, 444-454.

Karlsen, R.H., Grabs, T., Bishop, K., Buffam, I., Laudon, H., Seibert, J. 2016. Landscape controls on spatiotemporal discharge variability in a boreal catchment. Water Resources Research 52, 6541-6556.

Kirchner, J.W. 2016. Aggregation in environmental systems – Part 1: Seasonal tracer cycles quantify young water fractions, but not mean transit times, in spatially heterogeneous catchments. Hydrology and Earth System Sciences 20, 279-297.

Klaus, J., McDonnell, J.J., Jackson, C.R., Du, E., Griffiths, N.A. 2015. Where does streamwater come from in low-relief forested watersheds? A dual-isotope approach. Hydrology and Earth System Sciences 19, 125-135.

Laudon, H., Löfvenius, O.M. 2016. Adding snow to the picture – providing complementary winter precipitation data to the Krycklan catchment study database. Hydrological Processes, 30 2413-2416.

Latron, J., Gallart, F. 2008. Runoff generation processes in a small Mediterranean research catchment (Vallcebre, Eastern Pyrenees). Journal of Hydrology 358, 206-220.

Lawler, D.M., Petts, G.E., Foster, I.D.L., Harper, S. 2006. Turbidity dynamics during spring storm events in an urban headwater river system: The Upper Tame, West Midlands, UK. Science of the Total Environment 360, 109-126.

Lehmann, P., Hinz, C., McGrath, G., Tromp-van Meerveld, H.J., McDonnell, J.J. 2007. Rainfall threshold for hillslope outflow: An emergent property of flow pathway connectivity. Hydrology and Earth System Sciences 11, 1047-1063.

Lloyd, C.E.M., Freer, J.E., Johnes, P.J., Collins, A.L. 2016a. Using hysteresis analysis of high-resolution water quality monitoring data, including uncertainty, to infer controls on nutrient and sediment transfer in catchments. Science of the Total Environment 543, 388-404.

Lloyd, C.E.M., Freer, J.E., Johnes, P.J., Collins, A.L. 2016b. Technical Note: Testing an improved index for analysing storm discharge-concentration hysteresis. Hydrology and Earth System Sciences 20, 625-632.

McDonnell, J.J. 2003. Where does water go when it rains? Moving beyond the variable source area concept of rainfall-runoff response. Hydrological Processes 17, 1869-1875.

McDonnell, J.J., Bonell, M., Stewart, M.K., Pearce, A.J. 1990. Deuterium variations in storm rainfall – implications for stream hydro-graph separation. Water Resources Research 26 (3), 455-458.

McGuire, K.J., McDonnell, J.J. 2010. Hydrological connectivity of hillslope and streams: characteristic time scales and nonlinearities. Water Resources Research 46, W10543.

Mirus, B.B., Loague, K. 2013. How runoff begins (and ends): Characterizing hydrologic response at the catchment scale. Water Resources Research, 49.

Ocampo, C.J., Sivapalan, M., Oldham, C. 2006. Hydrological connectivity of upland-riparian zones in agricultural catchments: implications for runoff generation and nitrate transport. Journal of Hydrology 331, 643-658.

Pacific, V.J., McGlynn, B.L., Riveros-Iregui, D.A., Welsch, D.L., Epstein, H.E. 2011. Landscape structure, groundwater dynamics, and soil water content influence soil respiration across riparian-hillslope transitions in the Tenderfoot Creek Experimental Forest, Montana. Hydrological Processes 25, 811-827.

Pacific, V.J., Jencso, K.G., McGlynn, B.L. 2010. Variable flushing mechanisms and landscape structure control stream DOC export during snowmelt in a set of nested catchments. Biogeochemistry 99 (1-3), 193-211.

Penna, D., Stenni, B., Šanda, M., Wrede, S., Bogaard, T.A., Gobbi, A., Borga, M., Fischer, B.M.C., Bonazza, M., and Chárová, Z. 2010. On the reproducibility and repeatability of laser absorption spectroscopy measurements for δ2H and δ18O isotopic analysis. Hydrology and Earth System Sciences 14, 1551-1566.

Penna, D., Borga, M., Sangati, M., Gobbi A. 2010. Dynamics of soil moisture, subsurface flow and runoff in a small alpine basin. In: A. Herrmann, S. Schumann (Eds.), Status and Perspectives of Hydrology in Small Basins, IAHS Publications 336, 96-102.

Penna, D., Tromp-van Meerveld, H.J., Gobbi, A., Borga, M., Dalla Fontana, G. 2011. The influence of soil moisture on threshold runoff generation processes in an alpine headwater catchment. Hydrology and Earth System Sciences 15, 689-702.

Penna, D., Stenni, B., Šanda, M., Wrede, S., Bogaard, T.A., Michelini, M., Fischer, B.M.C., Gobbi, A., Mantese, N., Zuecco, G., Borga, M., Bonazza M., Sobotková M., Čejková B., Wassenaar, L.I. 2012. Technical Note: Evaluation of between-sample memory effects in the analysis of δ2H and δ18O of water samples measured by laser spectroscopes. Hydrology and Earth System Sciences 16, 3925-3933.

Penna, D., Brocca, L., Borga, M., Dalla Fontana, G. 2013. Soil moisture temporal stability at different depths on two alpine hillslopes during wet and dry periods. Journal of Hydrology 477, 55-71.

Penna, D., Mantese, N., Hopp, L., Dalla Fontana, G., Borga, M. 2015. Spatio-temporal variability of piezometric response on two steep alpine hillslopes. Hydrological Processes, 29, 198-211.

Penna, D., van Meerveld, H.J., Zuecco, G., Dalla Fontana, G., Borga, M. 2016. Hydrological response of an Alpine catchment to rainfall and snowmelt events. Journal of Hydrology 537, 382-397.

Penna, D., Zuecco, G., Crema, S., Trevisani, S., Cavalli, M., Pianezzola, L., Marchi, L., Borga, M. 2017. Response time and water origin in a steep nested catchment in the Italian Dolomites: Response time and water origin in a nested catchment. Hydrological Processes 31, 768-782.

Peralta-Tapia, A., Sponseller, R.A., Ågren, A., Tetzlaff, D., Soulsby, C., Laudon, H. 2015a. Scale-dependent groundwater contributions influence patterns of winter baseflow stream chemistry in boreal catchments. Journal of Geophysical Research: Biogeosciences 120 (5), 847-858.

Peralta-Tapia, A., Sponseller, R.A., Tetzlaff, D., Soulsby, C., Laudon, H. 2015b. Connecting precipitation inputs and soil flow pathways to stream water in contrasting boreal catchments. Hydrological Processes 29, 3546-3555.

Peralta-Tapia, A., Soulsby, C., Tetzlaff, D., Sponseller, R., Bishop, K., Laudon, H. 2016. Hydroclimatic influences on non-stationary transit time distributions in a boreal headwater catchment. Journal of Hydrology 543, 7-16.

Pfister, L., Martínez-Carreras, N., Hissler, C., Klaus, J., Carrer, G.E., Stewart, M.K., McDonnell, J.J. 2017. Bedrock geology controls on catchment storage, mixing, and release: A comparative analysis of 16 nested catchments. Hydrological Processes 31, 1828-1845.

Phillips, J.D. 2003. Sources of nonlinearity and complexity in geomorphic systems. Progress in Physical Geography 27 (1), 1-23. 0309133303pp340ra.

Phillips, J.D. 2006. Evolutionary geomorphology: Thresholds and nonlinearity in landform response to environmental change. Hydrology and Earth System Sciences 10, 731-742.

Phillips R.W., Spence C., Pomeroy J.W. 2011. Connectivity and runoff dynamics in heterogeneous basins. Hydrological Processes 25, 3061-3075.

Pinder, G.F., Jones, J.F. 1969. Determination of ground‐water component of peak discharge from chemistry of total runoff. Water Resources Research 5 (2), 438-445.

Pomeroy, J., Fang, X., Ellis, C. 2012. Sensitivity of snowmelt hydrology in Marmot Creek, Alberta, to forest cover disturbance. Hydrological Processes 26, 1891-1904.

Prowse, C.W. 1984. Some thoughts on lag and hysteresis. Area 16, 17-23.

Radatz, T.F., Thompson, A.M., Madison, F.W. 2013. Soil moisture and rainfall intensity thresholds for runoff generation in southwestern Wisconsin agricultural watersheds. Hydrological Processes 27, 3521-3534.

Rinderer, M., van Meerveld, H.J., Seibert, J. 2014. Topographic controls on shallow groundwater levels in a steep, prealpine catchment: When are the TWI assumptions valid? Water Resources Research 50, 6067-6080.

Riveros-Iregui, D.A., McGlynn, B.L., Marshall, L.A., Welsch, D.L., Emanuel, R.E., Epstein, H.E. 2011. A watershed-scale assessment of a process soil CO2 production and efflux model. Water Resources Research 47, W00J04.

Šanda, M., Kulasová, A., Císlerová, M. 2009. Hydrological processes in the subsurface investigated by water isotopes and silica. Soil & Water Research 4, 2009 (Special Issue 2), S83-S92.

Šanda, M., Vitvar, T., Kulasová, A., Jankovec, J., Císlerová, M. 2014. Run-off formation in a humid, temperate headwater catchment using a combined hydrological, hydrochemical and isotopic approach (Jizera Mountains, Czech Republic). Hydrological Processes 28, 3217-3229.

Schumann, S., Schmalz, B., Meesenburg, H., Schröder, U. (Eds.) 2010. Status and perspectives of hydrology in small basins. Results of the International Workshop in Goslar-Hahnenklee, 2009 and Inventory of Small Hydrological Research Basins. IHP/HWRP-Berichte 10, Koblenz.

Shanley, J.B., Sebestyen, S.D., McDonnell, J.J., McGlynn, B.L., Dunne, T. 2015. Water's way at Sleepers River watershed – revisiting flow generation in a post-glacial landscape, Vermont USA. Hydrological Processes 29, 3447-3459.

Sidle, R.C., Tsuboyama, Y., Noguchi, S., Hosoda, I., Fujieda, M., Shimizu, T. 2000. Stormflow generation in steep forested headwaters: A linked hydrogeomorphic paradigm. Hydrological Processes 14, 369-385.<369::AID-HYP943>3.0. CO;2-P.

Simoni, S., Padoan, S., Nadeau, D.F., Diebold, M., Porporato, A., Barrenetxea, G., Ingelrest, F., Vetterli, M., Parlange, M.B. 2011. Hydrologic response of an alpine watershed: Application of a meteorological wireless sensor network to understand streamflow generation. Water Resources Research 47, W10524.

Sklash, M.G., Farvolden, R.N. 1979. Role of groundwater in storm runoff. Journal of Hydrology 86243(1-4), 45-65.

Teutschbein, C., Grabs, T., Karlsen, R.H., Laudon, H., Bishop, K. 2016. Hydrological response to changing climate conditions: Spatial streamflow variability in the boreal region. Water Resources Research 51, 9425-9446.

Tetzlaff, D., Buttle, J., Carey, S.K., van Huijgevoort, M.H.J., Laudon, H., McNamara, J.P., Mitchell, C.P.J., Spence, C., Gabor, R.S., Soulsby, C. 2015. A preliminary assessment of water partitioning and ecohydrological coupling in northern headwaters using stable isotopes and conceptual runoff models. Hydrological Processes 29, 5153-5173.

Tromp-van Meerveld, H.J., McDonnell, J.J. 2006a. Threshold relations in subsurface stormflow: 1: A 147-storm analysis of the Panola hillslope. Water Resources Research 42, W02410.

Tromp-van Meerveld, H.J., McDonnell, J.J. 2006b. Threshold relations in subsurface stormflow: 2: The fill and spill hypothesis, Water Resources Research 42, W02411.

Vidon, P.G. 2015. Field hydrologists needed: a call for young hydrologists to (re)-focus on field studies. Hydrological Processes 29, 5478-5480.

Vitvar, T., Aggarwal, P.K., McDonnell, J.J. 2005. A review of isotope applications in catchment hydrology. In: P.K. Aggarwal, J.R. Gat, K.F. Froehlich (Eds.), Isotopes in the Water Cycle: Past, Present and Future of a Developing Science, Springer, pp 151-169.

Vogel, T., Sanda, M., Dusek, J., Dohnal, M., Votrubova, J. 2010. Using oxygen-18 to study the role of preferential flow in the formation of hillslope runoff. Vadose Zone Journal 9, 252-259.

von Freyberg, J., Radny, D., Gall, H.E., Schirmer, M. 2014. Implications of hydrologic connectivity between hillslopes and riparian zones on streamflow composition. Journal of Contaminant Hydrology 169, 62-74.

Votrubova, J., Dohnal, M., Vogel, T., Sanda, M., Tesar, M. 2017. Episodic runoff generation at Central European headwater catchments studied using water isotope concentration signals. Journal of Hydrology and Hydromechanics 65.

Zabaleta, A., Antigüedad, I. 2013. Streamflow response of a small forested catchment on different timescales. Hydrology and Earth System Sciences 17, 211-223.

Zehe, E., Graeff, T., Morgner, M., Bauer, A., Bronstert, A. 2010. Plot and field scale soil moisture dynamics and subsurface wetness control on runoff generation in a headwater in the Ore Mountains. Hydrology and Earth System Sciences 14, 873-889.

Zuecco G., Penna D., Borga M., van Meerveld H.J. 2016. A versatile index to characterize hysteresis between hydrological variables at the runoff event timescale. Hydrological Processes 30, 1449-1466.

Zuecco G., Rinderer M., Penna D., Borga M., van Meerveld H.J. in preparation. Quantification of subsurface hydrologic connectivity in headwater catchments using a graph theory approach.


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