Micha Werner

Associate Professor of Hydraulic Engineering


Dr. Werner holds a position as Associate Professor in Flood Risk Management and River Basin Development at IHE Delft.  Within the MSc programme at IHE Delft he lectures on the subjects of flood management and river basin development & management, as well as supervision of fieldwork exercises. He is involved in the supervision of several MSc and PhD students. He has also given a number of guest lectures, including at Delft University and Lancaster University (UK), as well as invited keynote lectures at international scientific conferences.

The main research interests of Dr Werner are on the application of hydrological and hydraulic models and data in operational water management, including floods, droughts and reservoir operation. He has particular focus on forecast verification and dealing with uncertainties, as well as how uncertainties are presented and communicated within the operational setting. Besides a strong focus on operational forecasting, he has been closely involved in the wider scope of flood risk analysis, obtaining a PhD in uncertainties in flood inundation modelling at the Delft University of Technology, as well as participating in several key European research projects. He has actively participated in several international scientific conferences, and has published several papers in peer reviewed journals and conference proceedings, as well as book chapters in scientific collections. Dr. Werner is a member of the editorial board of the Journal of Hydrology and Earth Systems Sciences, and serves as a member of the WMO Open Panel of CHy Experts, with a focus on flood forecasting and modelling.

Dr. Micha Werner also holds a position as Senior Hydrologist at Deltares, working within the Operational Water Management group. His main focus is on operational flood forecasting and warning. Dr. Werner was one of the principal designers of the DELFT-FEWS flood forecasting system, now applied in over 20 operational forecasting centres across the world. He is responsible for research and innovation in the development of flood forecasting systems. And in this role he works closely with experts at various operational flood forecasting centres around the world, including those in the United States, England and Wales, Scotland, Switzerland, the Netherlands, Germany, Austria, Sudan, Pakistan and the United States. At these operational centres he has gained unique experience in hydrological and hydraulic aspects of operational forecasting, establishing the institutional setting of a flood forecasting and warning system, and in capacity building and training of operational forecasting staff.

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Peer Reviewed


  1. Wetterhall F. Winsemius HC. Dutra E. Werner M. Pappenberger F. 2015. Seasonal predictions of agro-meteorological droughtindicators for the Limpopo basin. Hydrol. Earth Syst. Sci; 19:2577–2586.
  2. Trambauer P. Werner M. Winsemius HC. Maskey S. Dutra E. Uhlenbrook S. 2015. Hydrological drought forecasting and skill assessment for the Limpopo River basin, southern Africa. Hydrol. Earth Syst. Sci., 19, 1695-1711.
  3. Cumiskey L. Werner M. Meijer K. Fakhruddin SHM. Hassan A. 2015. Improving the social performance of flash flood early warnings using mobile services.  Int. Journal of Disaster Resilience in the Built Environment. 6: 57-72.
  4. Sunday RKM. Masih I. Werner M. van der Zaag P. Streamflow forecasting for operational water management in the Incomati River Basin, Southern Africa. Physics and Chemistry of the Earth, Parts A/B/C. Vol. 72-75: 1-12.
  5. Rogelis. MC. Werner M. 2014. Regional debris flow susceptibility analysis in mountainous peri-urban areas through morphometric and land cover indicators. Nat. Hazards Earth Syst. Sci., 14, 3043-3064.
  6. Trambauer P. Maskey S. Werner M. Pappenberger F. van Beek LPH. Uhlenbrook S. 2014. Identification and simulation of space–time variability of past hydrological drought events in the Limpopo River basin, southern Africa. Hydrol. Earth Syst. Sci., 18, 2925-2942.
  7. Worku F. Werner M. Wright N. van der Zaag P. Demissie S. 2014. Flow regime change in an endorheic basin in southern Ethiopia. Hydrol. Earth Syst. Sci., 18, 3837-3853.
  8. Winsemius HC. Dutra EA. Engelbrecht F. Archer Van Garderen E. Wetterhall F. Pappenberger F. Werner M. 2014. The potential value of seasonal forecasts in a changing climate in southern Africa. Hydrol. Earth Syst. Sci., 18, 1525-1538
  9. Trambauer P. Dutra E. Maskey S. Werner .M. Pappenberger F. van Beek LPH. Uhlenbrook S. 2014. Comparison of different evaporation estimates over the African continent. Hydrol. Earth Syst. Sci., 18, 193-212
  10. Mukolwe M. Di Baldassare G. Werner M. Solomatine D. 2013. Flood modelling: parameterisation and inflow uncertainty. ICE Water Management 167(1): 51-60
  11. Trambauer P. Maskey M. Winsemius H. Werner M. Uhlenbrook S. 2013. A review of continental scale hydrological models and their suitability for drought forecasting in (sub-Saharan) Africa. Physics and Chemistry of the Earth, Parts A/B/C. 66: 16-26.
  12. Werner M. Schellekens J. Gijsbers P. van Dijk M. Heynert K. Akker O.. 2013. The Delft-FEWS flow forecasting system. Environmental Modelling & Software 40: 65-77.
  13. Rogelis MC. Werner M. 2013. Spatial interpolation for real time rainfall field estimation in areas with complex topography. Jounal of Hydrometeorology 14: 85-104.
  14. Pozzi W. Sheffield J. Stefanski R. Cripe D. Pulwarty R. Heim, Jr. R. Brewer MJ Vogt J Svoboda M. Westerhoff R. Lloyd-Hughes B. Pappenberger F. Werner M. Wagner W. van Dijk A. Mo K. Schubert S. Nicholson M. Bettio L. van Beek R.Nunez L. Bierkens M. Goncalves , LG. Dutra E. Wetterhall F. Lawford R. Zell de Mattos JG. 2013. Towards Global Drought Early Warning Capability: A Framework of International Cooperation for Global Drought Monitoring and Forecasting, Bulletin of the American Meteorological Society. 94(6): 776-785.
  15. Quevauviller P. Barcelo D. Beniston M. Djordjevic S. Harding RJ. Iglesias A. Ludwig R. Navarra A. Navarro Ortega A. Mark O. Roson R. Sempere D. Stoffel M. van Lanen H. Werner M. 2012. Integration of research advances in modelling and monitoring in support of WFD river basin management planning in the context of climate change. Science of the Total Environment. 440: 167-177.
  16. Shah MAR. Douven WJAM. Werner M. Leentvaar J. 2012. Flood warning responses of farmer households: a case study in Uria Union in the Brahmaputra flood plain, Bangladesh. Journal of Flood Risk Management. 5: 258-269.
  17. Verkade J. Werner M. 2011. Estimating the benefits of single value and probability forecasting for flood warning. Hydrology and Earth System Sciences. 15: 3751-3765.
  18. Corzo GA. Solomatine DP. Hidayat. de Wit M. Werner M. Uhlenbrook S. Price RK. 2009. Combining semi-distributed process-based and data-driven models in flow simulation: a case study of the Meuse river basin. Hydrology and Earth System Sciences 13: 1619-1634
  19. Werner M. Cranston M. 2009. Utility of Radar Rainfall Nowcasts for Hydrological Forecasting in Flashy Catchments, Meteorological Applications 16(1):41-55
  20. Werner M. Cranston M. Harrison T. Whitfield D. Schellekens S. 2009. Recent Developments in Operational Flood Forecasting in England, Wales and Scotland. Meteorological Applications 16(1):13-32
  21. Renner M. Werner M. Rademacher S. Sprokkereef E. 2009. Verification of ensemble flow forecasts for the River Rhine. Journal of Hydrology 376: 463-475.
  22. Werner M. Whitfield. D. 2007. On model integration in operational flood forecasting (invited commentary). Hydrological Processes 21, 1519-1521. DOI: 10.1002/hyp.6726.
  23. Werner M. Lambert M. 2007. Comparison of modelling approaches used in practical flood extent modeling. Journal of Hydraulic Research. 45(2):202-215.
  24. Werner M. Reggiani P. de Roo A. Bates P. Sprokkereef S. 2005. Flood forecasting and warning at the river basin and at the European scale. Natural Hazards 36: 25-42.
  25. Werner M. Hunter N. Bates P. 2005. Identifiability of distributed roughness data in flood extent estimation. Journal of Hydrology. 314. 139-157. doi:10.1016/j.jhydrol.2005.03.012
  26. Werner M. Blazkova S. Petr J. 2005. Spatially distributed observations in constraining inundation modelling uncertainties. Hydrological Processes 19. 3081-3096 (DOI: 10.1002/hyp.5833).
  27. Hunter NM. Horritt MS. Bates PD. Wilson MD. Werner M. 2005. An adaptive time step solution for raster-based storage cell modelling of floodplain inundation. Advances in Water Resources 28(9): 975-991.doi:10.1016/j.advwatres.2005.03.007
  28. Hunter NM. Bates PD. Horritt MS. de Roo APJ. Werner M. 2005. Utility of different data types for calibrating flood inundation models within a GLUE framework. Hydrology and Earth System Sciences 9(4). 412-430.
  29. Werner M. 2004. A comparison of flood extent modelling approaches through constraining uncertainties on gauge data. Hydrology and Earth System Sciences 8(6): 1141-1152.
  30. Khu S-T. Werner M. 2003. Reduction of Monte-Carlo simulation runs for uncertainty estimation in hydrological modelling, Hydrology and Earth System Sciences 7: 680 – 692.
  31. Werner M. 2001. Impact of Grid Size in GIS Based Flood Extent Mapping using a 1D Flow Model. Physics and Chemistry of the Earth 26: 517-522


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