Prof. Dr.-Ing.

Wolfgang Nowak

Principal Investigator (EXC), Fellow (SC), Coordinator PN 5
Institute for Modelling Hydraulic and Environmental Systems
Professor for Stochastic Modelling of Hydrosystems


+49 711 685-60113


Pfaffenwaldring 5a
70569 Stuttgart
Room: 2.027


  • Hydrosystems modeling and porous media
  • Stochastic simulation and Bayesian methods

Selected Publications

  1. J. Koch and W. Nowak. “Identification of contaminant source architectures - a statistical inversion that emulates multi-phase physics in a computationally practicable manner”. In: Water Resources Research 52.2 (2016), pp. 1009–1025.
  2. A. Schöniger, W. Illman, T. Wöhling, and W. Nowak. “Finding the Right Balance Between Groundwater Model Complexity and Experimental Effort via Bayesian Model Selection”. In: Journal of Hydrology 531.1 (2015), pp. 96–110.
  3. A. Schöniger, T. Wöhling, L. Samaniego, and W. Nowak. “Model selection on solid ground: Rigorous comparison of nine ways to evaluate Bayesian model evidence”. In: Water Resources Research 50.12 (2014), pp. 9484–9513.
  4. S. Oladyshkin, H. Class, and W. Nowak. “Bayesian updating via bootstrap filtering combined with data-driven polynomial chaos expansions: methodology and application to history matching for carbon dioxide storage in geological formations”. In: Computational Geosciences 17.4 (2013), pp. 671–687.
  5. A. Schöniger, W. Nowak, and H.-J. Hendricks Franssen. “Parameter estimation by ensemble Kalman filters with transformed data: Approach and application to hydraulic tomography”. In: Water Resources Research 48.4 (2012).
  6. S. Oladyshkin, H. Class, R. Helmig, and W. Nowak. “A concept for data-driven uncertainty quantification and its application to carbon dioxide storage in geological formations”. In: Advances in Water Resources 34.11 (2011), pp. 1508–1518.
  7. W. Nowak, F. P. J. de Barros, and Y. Rubin. “Bayesian Geostatistical Design: Task-driven optimal site investigation when the geostatistical model is uncertain”. In: Water Resources Research 46.3 (2010).
  8. W. Nowak. “Best Unbiased Ensemble Linearization and the quasi-linear Kalman ensemble generator”. In: Water Resources Research 45.4 (2009).
  9. W. Nowak, R. L. Schwede, O. A. Cirpka, and I. Neuweiler. “Probability density functions of hydraulic head and velocity in three-dimensional heterogeneous porous media”. In: Water Resources Research 44.8 (2008).
  10. W. Nowak and O. A. Cirpka. “Geostatistical inference of hydraulic conductivity and dispersivities from hydraulic heads and tracer data”. In: Water Resources Research 42.8 (2006).

Professional and Academic Career

  • since 2016 Director of the Institute for Modelling Hydraulic and Environmental Systems
  • since 2014 SimTech Chair for Stochastic Simulation and Safety Research for Hydrosystems, Institute for Modelling Hydraulic and Environmental Systems, University of Stuttgart
  • 2008–2014 SimTech Junior Professor for Stochastic Modelling of Hydrosystems, University of Stuttgart
  • 2007–2008 Postdoctoral Fellow at the University of California at Berkeley, USA
  • 2005–2007 Postdoctoral Fellow at the Institute for Hydraulic Engineering, University of Stuttgart
  • 2001 Visiting Scholar at Stanford University, USA
  • 1999–2000 Research Assistant at the Department of Earth Sciences, University of Waterloo, Ontario, Canada


Academic Studies and Degrees

  • 2000–2004 Dr.-Ing., Environmental Engineering, University of Stuttgart
  • 1998–2000 Water Resources Engineering and Management (M.Sc.), University of Stuttgart (Master’s thesis written at University of Waterloo, Ontario, Canada)
  • 1994–2000 Environmental Engineering (Dipl.-Ing.), University of Stuttgart
  • 2015 American Geophysical Union Award for Excellence in Refereeing
  • 2013 University of Stuttgart Environmental Engineering student award for best Master-level lecture: “Environmental Fluid Mechanics II”
  • 2013 InterPore Rosette for exceptional commitment to the society
  • 2007 DFG stipend (staying at the University of California at Berkeley)
  • since 2018: PI of DFG SFB 1313 “Interface-Driven Multi-field Processes in Porous Media - Flow, Transport and Deformation”
  • since 2016: PI and Member of the Executive Committee DFG SFB 1253 “Catchments as Reactors: Metabolism of Pollutants on the Landscape Scale – CAMPOS”
  • since 2014: Associate Editor “Journal of Hydrology”
  • since 2012: PI of the DFG IRTG 1892 “Integrated Hydrosystem Modelling” (HYDROMOD, Tübingen)
  • 2010–2016: Head of Publicity Committee for International Society for Porous Media Research
  • 2010–2015: PI of the DFG IRTG 1398 “Non-Linearities and upscaling in porous media” (NUPUS)
  • 2010–2014: Scientific Board Member at the research institute “Water Earth System Science” (Universities of Tübingen, Hohenheim and Stuttgart, UFZ Leipzig-Halle)
  • since 2009: Patron for the Student Exchange Programme between the Universities of Stuttgart and Waterloo, Canada
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