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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

Carolin Winter
Hydrologist with a focus on catchment-scale water quality in the face of global change. I am particularly interested in the effects of changing hydro-meteorological conditions on water quality and in the insights into hydrological and biogeochemical processes that we can gain from high frequency monitoring. winter
Jost Hellwig
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.
Ben Kraemer
Global change aquatic scientist focusing on the links between climate change and lake ecosystems. Merges disparate data sources and modeling approaches to maximizing the spatial and temporal scope of research. Predominantly global scale research is grounded by regional foci including lakes in Central Europe, Central North America, and East Africa. kraemer

PhD students

Kathrin Szillat

Hydrologist, interested in hydrological extremes and their impact on the environment and society. Investigates the availability and quality of groundwater and surface water. Focus on assessing the impact of drought and nitrate on groundwater resources and drinking water management.


Former group members


  • Amelie Herzog
  • Yonca Cavus
  • Veit Blauhut
  • Ruth Stephan
  • Manuela Brunner
  • Christopher Schlemper
  • Jonas Götte
  • Michael Stölzle
  • Marit van Tiel
  • Daphné Freudiger
  • Mathilde Erfurt
  • Irene Kohn
  • Benedikt Heudorfer
  • Inge de Graaf
  • Erik Tijdeman