TY - CHAP A1 - Maurer, Thomas A1 - Caviedes-Voullième, Daniel A1 - Hinz, Christoph A1 - Gerke, Horst H. T1 - Dynamik der initialen (öko-) hydrologischen Entwicklung – Modellierung von Anfangsbedingungen und Wasserflüssen in einem exemplarischen Einzugsgebiet T2 - Abstract-Sammlung zu Posterbeiträgen, eingereicht zum Tag der Hydrologie in Trier 2017, 23. 03. – 24. 03. 2017 Y1 - 2017 UR - https://www.uni-trier.de/fileadmin/fb6/prof/PHY/PDF-Dateien/TdH2017_4Abstracts_Poster.pdf SP - S. 20 ER - TY - GEN A1 - Khosh Bin Ghomash, Shahin A1 - Caviedes-Voullième, Daniel A1 - Hinz, Christoph T1 - Effects of topography and infiltration heterogeneity on surface runoff and connectivity in the Huehnerwasser catchment T2 - European Geosciences Union, General Assembly 2019, Vienna, Austria, 7–12 April 2019 N2 - The Huehnerwasser catchment is a monitored, early-development constructed catchment within the Lower Lausatia post-mining landscape in Germany. From the initial bare catchment state, a sequence of landscape-forming processes occurred, including erosion-based topographic change and vegetation establishment, which are at the centre of this study. Erosion-based topographic change is strongly driven by surface runoff, while in turn itself also modifying runoff in the catchment. These topographic changes can have a significant impact on the hydrological response of a catchment, as they can affect flow paths, flow speeds and rainfall-runoff-infiltration partitioning, all of which manifest in different ways in runoff hydrographs in response to rainfall events. Vegetation establishment enhances local infiltration capacity, introducing infiltration heterogeneity, thus affecting the topography-controlled flowpaths as water infiltrates at vegetation patches. Critical-zone observatories and monitored early-development systems allow to document signatures of the evolution of catchments and to correlate certain behaviours to processes. However, readily and easily achievable runoff signatures often cannot provide a clear nor full description of process interactions, as the individual roles of processes are stacked together, and strongly shaped by the temporal distribution of rainfall, making it very difficult to disentangle the effects of each process, and making modelling a necessary approach to understand these interactions and their manifestations. All such processes occur at small spatial scales, and are difficult to observe or assess when experimentally studying catchment hydrology. Moreover, given that the complexity of processes contributing to morphological changes and the corresponding alteration of runoff signatures, single catchment experiments and even comprehensive monitoring programmes of whole catchments will neither allow to decipher all processes interactions nor will it allow to apply a statistically derived experimental. In this work, we study the effects that spatial distributions of surface topography and infiltration properties have on surface runoff and surface connectivity in response to single rainfall events, in the context of the Huehnerwasser catchment. We simulate rainfall/runoff processes by means of a physically-based, spatially explicit surface flow model, and assess the results in terms of hydrological signatures (hydrograph, hydrological balance), spatial distribution of the hydrodynamics of runoff, and surface flow connectivity. To do this, we use several DEMs of the Hühnerwasser catchment recorded during the erosion-based development of the surface (2006-2010), different hypothetical infiltration properties distributions, and a set of different singular rainfall events. The study allows to observe the individual effects that topographic properties and infiltration distributions have on the hydrograph signatures and connect cause-and-effect through an intermediate, conceptual property of the system: surface runoff connectivity, arguably an indicator of hydrological organisation of the runoff response. Moreover, by systematic analysis, the interactions between topography and infiltration can also be assessed in the hydrograph and explained through connectivity. The results show a range of possible magnitudes of influence of topography and infiltration on the runoff response, while highlighting that the onset of runoff and the rising limb of the hydrograph are mostly affected by these features and their interactions, and strongly related to surface runoff connectivity. Y1 - 2019 UR - https://meetingorganizer.copernicus.org/EGU2019/EGU2019-14326.pdf CY - Katlenburg-Lindau ER - TY - GEN A1 - Shlewet, Marlin A1 - Kästner, Karl A1 - Caviedes-Voullième, Daniel A1 - Hinz, Christoph T1 - Einfluss urbaner Strukturen auf die räumliche und zeitliche Dynamik pluvialer Fluten T2 - Abstract-Band, Tag der Hydrologie 2023, Nachhaltiges Wassermanagement – Regionale und Globale Strategien, 22. & 23.03.2023, Ruhr-Universität Bochum & Hochschule Bochum Y1 - 2023 UR - https://www.ruhr-uni-bochum.de/tdh2023/mam/content/tdh-2023-abstractband-18032023_v2.pdf ER -