Impact of dumped sediment structures on hydrological modelling in the artificial Chicken Creek catchment, Germany

Hölzel, Herwig; Diekkrüger, Bernd; Biemelt, Detlef; Gädeke, Anne

doi:10.1016/j.jhydrol.2012.11.029

Cited by 4 publications

(3 citation statements)

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“…These groundwater values depended on the generated three‐dimensional solid phase scenarios, hydraulic pedotransfer model, and on observed and two‐dimensional spatially interpolated water tables. When compared with observed discharge, numerical flow modeling results could be improved (e.g., Holländer et al, 2009; Hölzel et al, 2013) and at the same time used for calibrating the three‐dimensional solid phase model with the corresponding hydraulic structures.…”

Section: Resultsmentioning

confidence: 99%

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A Three‐Dimensional Structure and Process Model for Integrated Hydro‐Geo‐Pedologic Analysis of a Constructed Hydrological Catchment

Gerke

Maurer

Schneider

2013

Vadose Zone Journal

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A structure model describes the boundary geometries and the three‐dimensional solid phase distributions of the catchment. In contrast to an established ecosystem, feedback relations can be assumed for an initial geosystem between the development of spatial structures and the water and element fluxes. The objective was to develop a hydrological catchment model as a three‐dimensional spatial database of the solid phase that allows an integrative analysis, a periodical mass balance, and the generation of distributed model parameters for the developing system. Data were from the constructed catchment “Chicken Creek.” The initial texture and bulk density distributions were generated by imitating sediment dumping, segregation, and compaction. Boundary geometries and changes in surface topography due to erosion and sedimentation processes were quantified on the basis of digital elevation models (DEMs) derived from aerial photographs. The catchment was visualized with the three‐dimensional software GoCad; the “emergence” of the water table and other structures (e.g., soil horizons, root zone) could be spatially assigned and quantified to identify regions with specific processes. A combination of three‐dimensional catchment with time‐dependent two‐dimensional surface models allowed generating the development of spatially distributed erosion–deposition patterns that formed new initial surfaces. The three‐dimensional distributed solid phase structure of the catchment allowed for a more direct comparison with observations using minimal invasive methods. The mass balance of the solids could be related with pedologic development and transfer to other geopedologic systems achieved by adapting sediment transport and deposition in the descriptions of the model. This model may help improve the integrative analysis of hydrological catchments.

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Section: Resultsmentioning

confidence: 99%

“…The number of grid cells was 140 in x direction, 411 in y direction, and maximal 20 in z direction. This initial three‐dimensional structure model describing the catchment's boundaries and structures provided the basis for hydrological modeling attempts (e.g., Holländer et al, 2009; Hölzel et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

A Three‐Dimensional Structure and Process Model for Integrated Hydro‐Geo‐Pedologic Analysis of a Constructed Hydrological Catchment

Gerke

Maurer

Schneider

2013

Vadose Zone Journal

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“…After manual model parameterization, the model‐independent parameter estimation program PEST (Doherty, ), a gradient‐based local search approach, was used for automated calibration of four effective parameters (Table ), which were identified from a literature review (Kunstmann et al ., ; Rössler and Löffler, ; Cullmann et al ., ; Hölzel et al ., ) and recommendations given by the model developers (Schulla and Jasper, ). At first, automated calibration was performed for the two subcatchments (gauges Holtendorf and Königshain, Figure ).…”

Section: Methodsmentioning

confidence: 99%

Analysis of uncertainties in the hydrological response of a model‐based climate change impact assessment in a subcatchment of the Spree River, Germany

Gädeke

Hölzel

Koch

et al. 2013

Hydrological Processes

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Climate change impact assessments form the basis for the development of suitable climate change adaptation strategies. For this purpose, ensembles consisting of stepwise coupled models are generally used [emission scenario → global circulation model → downscaling approach (DA) → bias correction → impact model (hydrological model)], in which every item is affected by considerable uncertainty. The aim of the current study is (1) to analyse the uncertainty related to the choice of the DA as well as the hydrological model and its parameterization and (2) to evaluate the vulnerability of the studied catchment, a subcatchment of the highly anthropogenically impacted Spree River catchment, to hydrological change. Four different DAs are used to drive four different model configurations of two conceptually different hydrological models (Water Balance Simulation Model developed at ETH Zürich and HBV-light). In total, 452 simulations are carried out. The results show that all simulations compute an increase in air temperature and potential evapotranspiration. For precipitation, runoff and actual evapotranspiration, opposing trends are computed depending on the DA used to drive the hydrological models. Overall, the largest source of uncertainty can be attributed to the choice of the DA, especially regarding whether it is statistical or dynamical. The choice of the hydrological model and its parameterization is of less importance when long-term mean annual changes are compared. The large bandwidth at the end of the modelling chain may exacerbate the formulation of suitable climate change adaption strategies on the regional scale. Figure 6. Frequency plot for daily (top, precipitation > 10 mm/day not displayed) and monthly (bottom) precipitation for the reference period (CCLM: COSMO model in climate mode; REMO: regional model; WettReg: weather-type regionalization method) 3990A. GÄDEKE ET AL. Figure 8. Comparison between the interannual course of measured and simulated (reference 1963-1992 and scenario period 2031-2060) temperatures for the Weißer Schöps River catchment (interpolation by the inverse distance method) (CCLM: COSMO model in climate mode; REMO: regional model; STAR: Statistical Regional model; WettReg: weather-type regionalization method) 3992 A. GÄDEKE ET AL.

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Effects of erosion-induced changes to topography on runoff dynamics

Ghomash

Caviedes‐Voullième

Hinz

2019

Journal of Hydrology

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Impact of dumped sediment structures on hydrological modelling in the artificial Chicken Creek catchment, Germany

Cited by 4 publications

References 40 publications

A Three‐Dimensional Structure and Process Model for Integrated Hydro‐Geo‐Pedologic Analysis of a Constructed Hydrological Catchment

A Three‐Dimensional Structure and Process Model for Integrated Hydro‐Geo‐Pedologic Analysis of a Constructed Hydrological Catchment

Analysis of uncertainties in the hydrological response of a model‐based climate change impact assessment in a subcatchment of the Spree River, Germany

Effects of erosion-induced changes to topography on runoff dynamics

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