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Chair of Environmental Hydrological Systems

Welcome to the homepage of the Chair of Environmental Hydrological Systems, Prof. Kerstin Stahl

We teach in the Bachelor programme "Environmental Sciences" and in the "Master of Hydrology" among others and participate in local, national and international science activities.

Our research deals with climate impacts on hydrology and water resources, in particular hydrological extremes and their impacts on environment and society. Projects that are keeping us busy focus on:

  • drought hazard and risk under global change (several projects)
  • hydrological processes and storages in catchments with
  • a focus on (partly glacierized ) mountain headwater regions (e.g. ASG Rhine project)


If you are interested in general information about the hydrological chairs please click the corresponding button in the navigation.

Here is the team


Kerstin Stahl
stahl Hydrologist studying water's links to climate, environment and society: empirically at large scale, regionally with models, preferably long-term and with a special passion for mountain hydrology and downstream impacts of drought.

Research and teaching staff

Jost Hellwig
Hydrological modeller and data scientist studying groundwater and surface water availability and quality. Research focus is drought and the complex interaction of climate-, catchment- and anthropogenic processes as the main driver of regional differences in drought occurrence. hellwig
Veit Blauhut
blauhut External employee.
„Droughtie“ with a focus on sector specific drought risk modelling at different scales – from catchment to continent. Key foci are
a) the collection, categorisation and (if possible) quantification of past drought impacts;
b) to identify drivers of drought impacts with regard to hazard, exposure and vulnerability; and
c) to develop management strategies to lower current vulnerability to drought.
Kathrin Szillat

Hydrologist, interested in hydrological extremes and their impact on the environment and society. Works in the project EDORA, which was launched by the European Commission (DG Environment and DG Joint Research Centre), aiming to improve drought resilience and adaptation throughout the EU.


PhD students

Amelie Herzog
herzog Hydrologist studying water availability in the different compartments of the critical zone. Research focuses on measurement and modeling of hydrological processes at catchment scale. Currently working on the link between drought, streamflow intermittency and anthropogenic impacts on water resources.
Ruth Stephan
Data-Analyst focusing on drought impacts in mountainous regions. Assessing the multi-facetted variety of impacts in the Alpine region and combining the components hazard, exposure and vulnerability aiming at assessing the risk of drought impacts. stephan
Yonca Cavus
cavus Civil engineer studying hydrology with a focus on droughts. Interested in drought analysis for water resources management at river basin scale. Works on drought reconceptualization and data-based drought intensity-duration-frequency curves using drought indices and physical variables, precipitation deficit and water deficit.


Former group members


  • Manuela Brunner
  • Christopher Schlemper
  • Jonas Götte
  • Michael Stölzle
  • Marit van Tiel
  • Daphné Freudiger
  • Mathilde Erfurt
  • Irene Kohn
  • Benedikt Heudorfer
  • Inge de Graaf
  • Erik Tijdeman