EGU22-9737
https://doi.org/10.5194/egusphere-egu22-9737
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Landscape Evolution of a mesoscale catchment in the Northern Franconian Jura, Germany: Impacts of Geology when using Landscape Evolution Models.

Bastian Ringleb and Markus Fuchs
Bastian Ringleb and Markus Fuchs
  • Department of Geography, Justus-Liebig-University Giessen, Germany (bastian.ringleb@geogr.uni-giessen.de

When modeling landscape evolution a uniform set of defining parameters is used to describe a heterogeneous landscape. This poses a particular challenge when reconstructing the fluvial history of the Weismain river basin (~125 km2). Located in the Northern Franconian Jura, Germany, the evolution of the landscape is closely related to its underlying bedrock. The Weismain river and its tributaries are deeply incised into a limestone plateau forming small, well-defined valleys that are opening up to wider floodplains in the lower parts of the catchment, where sandstone is dominant. The karstic nature of the catchment complicates a model calibration for the whole basin and therefore the reconstruction of its evolution.

In this study, we focus on two sub-catchments of the Weismain River where either lime- or sandstone are prominent. We are using the landscape evolution model CAESAR-Lisflood to model the sediment outputs of those tributaries and compare them to high-resolution, OSL-dated fluvial archives derived from extensive fieldwork. The numerical modeling approach should give insight into geomorphic processes, connectivity inside the system, and the possible impact from sub-surface irregularities in the area.

 

 

How to cite: Ringleb, B. and Fuchs, M.: Landscape Evolution of a mesoscale catchment in the Northern Franconian Jura, Germany: Impacts of Geology when using Landscape Evolution Models., EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-9737, https://doi.org/10.5194/egusphere-egu22-9737, 2022.

Comments on the display material

to access the discussion