Franziska Tügel

• Doctor of Engineering
• Assistant Professor at University of Twente

As climate change escalates, the Berlin-Brandenburg region faces new challenges. Climate change-induced extreme events including droughts, heatwaves, and floods, are expected to cause new conflicts to emerge and aggravate existing ones. To guide future research, we engaged a transdisciplinary academic community of experts to co-develop a list of ke...

This paper aims to quantify potential changes in extreme precipitation under climate change scenarios in the city of Berlin, Germany, and their resulting impacts on urban flooding in a selected flood-prone area of the city. Furthermore, it investigates the effectiveness of the existing drainage system, infiltration from unsealed surfaces, and reten...

Machine learning offers a powerful and versatile approach to flood susceptibility mapping, enabling us to leverage complex data and improve prediction accuracy. Given the plethora of available techniques and the challenges in selecting the optimal approach, this study investigates prominent ML algorithms for flood susceptibility mapping (FSM) in th...

Flooding poses a significant threat as a prevalent natural disaster. To mitigate its impact, identifying flood-prone areas through susceptibility mapping is essential for effective flood risk management. This study conducted flood susceptibility mapping (FSM) in Chandrapur district, Maharashtra, India, using geographic information system (GIS)-base...

Urban flooding can differ significantly from rural flooding due to the influence of rapidly changing land use and rainfall patterns on runoff in urban areas. Consequently, understanding and managing urban flooding necessitate a comprehensive grasp of these influential factors. This study focuses on assessing the impact of land use and rainfall chan...

The Hydroinformatics Modeling System (HMS) was used to simulate rainfall-runoff experiments to investigate the impact of different slopes and rainfall intensities for traditional and low-impact development (LID) surface conditions. HMS solves the depth-averaged 2D shallow water equations with robust numerical methods. Most importantly, depth-depend...

Flash floods are among the most dangerous natural hazards and can occur everywhere in the world. The ongoing global warming enhances flash flood-inducing heavy rainfalls. Observations have already shown a significant intensification of heavy rainfalls over the last decades. Depending on the scenario of Shared Socio-economic Pathways coming along wi...

Flash flood simulations help to assess and communicate risks, study structural mitigation measures, and develop effective and risk-based early warning systems. In rural catchments infiltration can significantly reduce the surface runoff and flood risk, depending on soil types and initial saturation, land use/land cover, and rainfall as well as floo...

In this paper, an automated calibration tool for shallow water models (ActSwm) was developed utilizing the open-source Python library SciPy. The developed tool links the hms model for rainfall-runoff simulations to global optimization algorithms as a single executable. Three fast global optimization algorithms (Differential Evolution, Dual Annealin...

__TL;DR:___________________________________________________________________________ Comparison of two 2D FVM Shallow Water Equations solvers, hms and hms++ (both are in-house developments at Chair of Water Resources Management and Modeling of Hydrosystems, TU Berlin) in terms of accuracy and computational performance. New version (hms++) provides...

This chapter aims to introduce the basic background of shallow water flow models and robust numerical methods as well as to represent different examples of applications. After briefly explaining the main characteristics of shallow water flow problems and pointing out the specific numerical requirements to appropriately simulate those processes, one...

This study aimed to evaluate the suitability of literature parameter values for the Green–Ampt infiltration model to be used in hydrodynamic rainfall–runoff simulations. The outcome of this study supports to decide which literature values should be taken if observed data for model calibration is not available. Different laboratory experiments, a pl...

This work is aimed at investigating flash floods in the region of El Gouna, Egypt, by using a 2D robust shallow-water model that incorporates the Green-Ampt model to find the most realistic infiltration setting for this desert area. The results of different infiltration settings are compared to inundation areas observed from LANDSAT 8 images as wel...

This study aims to evaluate the suitability of literature parameter values for the Green-Ampt infiltration model to be used in hydrodynamic rainfall-runoff simulations. The outcome of this study supports to decide which literature values should be taken if observed data for model calibration is not available. Different laboratory experiments, a plo...

In this paper, different optimization algorithms (Basin-Hopping, Dual-Annealing, SHGO) were applied to automatically calibrate a shallow water model for rainfall-runoff simulation in two real case studies. The automated calibration approach showed a very good agreement with measurements and performed better than a conventional manual calibration, p...

Extreme rainfalls exceed sometimes 100 mm/d usually occur on small spatial scales. ▪ They produce flash floods affect highly developed cities as well as areas with poor infrastructure all around the world. ▪ Due to climate change and the ongoing urbanization, the occurrence and intensity of flash floods as well as their damage potential is likely t...

Flash floods along the Red Sea coast are getting more and more into consideration as with rising population and tourists, and the damages caused by flash floods are stronger impacting the life in this region. Investigations in El Gouna close to Hurghada concentrate on a basic description of the basin, geological features, and climate conditions and...

Within this work, the impact of mitigation measures and infiltration on flash floods is investigated by using a 2D robust shallow water model including infiltration with the Green-Ampt model. The results show the combined effects of infiltration and mitigation measures as well as the effectiveness of bypass channels in addition to retention basins....

The Thiem equation of radial groundwater flow to a well is more than 100 years old and is still commonly used. Here, deviations caused by some of its simplifications are quantified by comparing the analytical to a numerical model that allows the implementation of more complex geometries. The assumption of horizontal flow in the Thiem equation, whic...