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  • Shallow subsurface runoff is one of the most important mechanisms determining hydrological responses of headwater catchments to rainstorms. In this study, a simplified approach combining one-dimensional dual-continuum vertical flow in a variably saturated soil profile and one-dimensional saturated flow along the soil-bedrock interface was used to study rainfall-runoff events at an experimental hillslope. A dual set of Richards' equations was used to predict vertical flow of water in the soil matrix and preferential pathways. Subsurface flow along the soil-bedrock interface was described by diffusion wave equation. The observed subsurface runoff and its oxygen-18 composition were compared with the model predictions. Contributions of pre-event and event water to hillslope runoff during major rainfall-runoff episodes were evaluated by means of numerical experiments involving synthetic oxygen-18 rainfall signatures. Although preferential flow played an important role in the hillslope runoff formation, pre-event water was found to be significant runoff component in most events. The simulation results confirmed the hypothesis of significant mixing between infiltrating rainwater and water stored in the hillslope soil profile. The modeling approach presented in this study was successful in describing both vertical and lateral mixing of water.
  • Shallow subsurface runoff is one of the most important mechanisms determining hydrological responses of headwater catchments to rainstorms. In this study, a simplified approach combining one-dimensional dual-continuum vertical flow in a variably saturated soil profile and one-dimensional saturated flow along the soil-bedrock interface was used to study rainfall-runoff events at an experimental hillslope. A dual set of Richards' equations was used to predict vertical flow of water in the soil matrix and preferential pathways. Subsurface flow along the soil-bedrock interface was described by diffusion wave equation. The observed subsurface runoff and its oxygen-18 composition were compared with the model predictions. Contributions of pre-event and event water to hillslope runoff during major rainfall-runoff episodes were evaluated by means of numerical experiments involving synthetic oxygen-18 rainfall signatures. Although preferential flow played an important role in the hillslope runoff formation, pre-event water was found to be significant runoff component in most events. The simulation results confirmed the hypothesis of significant mixing between infiltrating rainwater and water stored in the hillslope soil profile. The modeling approach presented in this study was successful in describing both vertical and lateral mixing of water. (en)
Title
  • Hillslope Hydrograph Analysis Using Synthetic and Natural Oxygen-18 Signatures
  • Hillslope Hydrograph Analysis Using Synthetic and Natural Oxygen-18 Signatures (en)
skos:prefLabel
  • Hillslope Hydrograph Analysis Using Synthetic and Natural Oxygen-18 Signatures
  • Hillslope Hydrograph Analysis Using Synthetic and Natural Oxygen-18 Signatures (en)
skos:notation
  • RIV/68407700:21110/12:00200752!RIV13-GA0-21110___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA205/08/1174), Z(MSM6840770002)
http://linked.open...iv/cisloPeriodika
  • December
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 139051
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21110/12:00200752
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Shallow subsurface runoff; Diffusion wave equation; Stable isotope transport in soil; Dual-permeability model; Hillslope hydrograph separation; Preferential flow (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [46E9F980CB7B]
http://linked.open...i/riv/nazevZdroje
  • Journal of Hydrology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 475
http://linked.open...iv/tvurceVysledku
  • Šanda, Martin
  • Dušek, Jaromír
  • Vogel, Tomáš
http://linked.open...ain/vavai/riv/wos
  • 000313864200034
http://linked.open...n/vavai/riv/zamer
issn
  • 0022-1694
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.jhydrol.2012.10.025
http://localhost/t...ganizacniJednotka
  • 21110
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