Amaury Tilmant, professeur agrégé
Pavillon Adrien-Pouliot, local 2978
T. 418 656-2131 poste 402370
F. 418 656-5343
Champs d'intérêts
  • Gestion des ressources en eau
  • Analyse des systèmes hydriques
  • Economie des ressources en eau

  • Water resources management
  • Water resources systems analysis
  • Water resources economics


  • GEX-3100 – Projet de gestion par bassin versant
  • GEX-3000 – Analyse hydro-économique
  • GEX-2001 - Interventions en bassin versant


Recent projects

The robustness of decentralized regional water systems under climate change 

  • Natural Sciences and Engineering Research Council of Canada (NSERC)
  • 2017-2021

Enhanced cross-boundary water resource management in the Senegal River Basin    

  • United Nations - FAO
  • 2016-2017

Adaptation de la gestion des barrages du système hydrique du Haut-Saint-François à l’impact des changements climatiques

  • MDDELCC - Centre d'Expertise Hydrique du Québec
  • 2016-2017

Integrated analysis of freshwater resources sustainability in Jordan

  • G8 Research Councils Initiative on Multilateral Funding
  • 2013-2016.
  • Partners: Stanford University (lead), University College London, Leipzig University and UFZ (Germany), University of Jordan (Jordan)
  • Website


Assessment of approximate dynamic programing in hydropower systems optimization

  • Rio Tinto Alcan & NSERC
  • 2013-1016

Mesopotamia Project

  • United Nations - FAO
  • 2014-2015

Water accounting

  • CAPES-CNPQ (Brazil)
  • 2014-2017
  • Partner: Rio Grande do Sul University (UFGR)

Multireservoir system optimization using ensemble forecasts.

  • Natural Sciences and Engineering Research Council of Canada (NSERC)
  • 2011-2016

Hydropower-to-environment water transfers in the Zambezi River basin (Power2Flow)

  • Dutch Ministry of Foreign Affairs (UNESCO-IHE Partnership Research Fund)
  • 2009-2013
  • Partners: UNESCO-IHE (The Netherlands, lead), Eduardo Mondlane University (Mozambique), WaterNet (Zimbabwe), WWF (Zambia), ETH-Z (Zurich)

Water and benefit sharing in international river basins.

  • Hydro-Quebec Institute for Environment, Development and Society (U. Laval)
  • 2011-2013

Models and data

This section shares results and or data of some research projects.

Stochastic hydro-economic model.  The model can be used to determine allocation policies in large-scale, regional, water resources systems. The optimization problem is solved using SDDP (stochastic dual dynamic programming). The model has been used to (i) analyze the impact of new dams (Eastern Nile River Basin), (ii) study hydropower-to-environment water transfers (environmental flows) (Zambezi and Parana River Basin), (iii) optimize hydropower generation (Saguenay, Québec), (iv) assess the benefit of cooperation and coordination (Nile and Parana River Basins), etc.

The model is a Matlab toolbox. Note that Matlab must have access to either CLP or GUROBI (LP solvers).

To get a copy of the SDDP toolbox, please contact me.

A horizontal approach to assess the impacts of climate change on water resources systems

Simulation results of the hydropower system in the Gatineau River Basin that were used in the paper entitled "A horizontal approach to assess the impact of climate change on water resources systems" submitted to the Journal of Water Resources Planning and Management can be found here:

Euphrates-Tigris River basin

Data and results of the hydro-economic model the of the Euphrates-Tigris River basin can be found here:<wbr />drive/folders/<wbr />0BypJKT7cDrTfMW9CZk56bUQ1QjQ?<wbr />usp=sharing


  • Yoon J.,Klassert C., Selby P., Lachaut T., Knox S., Avisse N., Harou J., Tilmant A., Klauer B., Mustafa D., Sigel K., Talozi S., Gawel E., Medellín-Azuara J., Bataineh B., Zhang H., Gorelick S., 2021. A coupled human–natural system analysis of freshwater security under climate and population change. Proceedings of the National Academy of Sciences 118 (14) e2020431118; DOI: 10.1073/pnas.2020431118
  • Tariku T. B., K. E. Gan, X. Tan, T. Y. Gan, H. Shi and A. Tilmant, 2021, Global warming impact to River Basin of Blue Nile and the optimum operation of its multi-reservoir system for hydropower production and irrigation, Science of Total Environment
  • Bof, P.H., G.F. Marques, A. Tilmant, A.P. Dalcin and M. Olivares, 2021. Water–Food–Energy Nexus Tradeoffs in the São Marcos River Basin. Water, 13, 817. 10.3390/w13060817
  • Tilmant A., J. Pina, M. Salman, C. Casarotto, F. Ledbi and E. Pek, 2020. Probabilistic trade-off assessment between competing and vulnerable water users – The case of the Senegal River basin. Journal of Hydrology 587. DOI: 10.1016/j.jhydrol.2020.124915
  • Avisse N., A. Tilmant, D. Rosenberg and S. Talozi, 2020. Quantitative Assessment of Contested Water Uses and Management in the Conflict-Torn Yarmouk River Basin. Journal of Water Resources Planning and Management 146(7). DOI: 10.1061/(ASCE)WR.1943-5452.0001240
  • Negash Kahsay T., D. Arjoon, O. Kuik, R. Brouwer, A. Tilmant, P. van der Zaag, 2019. A hybrid partial and general equilibrium modeling approach to assess the hydro-economic impacts of large dams – The case of the Grand Ethiopian Renaissance Dam in the Eastern Nile River basin. Environmental Modelling & Software 117: 76-88. DOI: 10.1016/j.envsoft.2019.03.007.
  • Rougé C., A. Tilmant,  B.F. Zaitchik,  A.K. Dezfuli and M. Salman., 2018. Identifying key water resource vulnerabilities in data‐scarce transboundary river basins. Water Resources Research. DOI: 10.1029/2017WR021489
  • Marques G. and A. Tilmant, 2018. Cost Distribution of Environmental Flow Demands in a Large-Scale Multireservoir System. Journal of Water Resources Planning and Management 144(6). DOI: 10.1061/(ASCE)WR.1943-5452.0000936
  • Fadel A., G. Marques, J.A. Goldenfum, J. Medellin-Azuara and A. Tilmant, 2018. Full Flood Cost: Insights from a Risk Analysis Perspective. Journal of Environmental Engineering 144(9).DOI:10.1061/(ASCE)EE.1943-7870.0001414
  • Avisse N., A. Tilmant, M.F. Muller and H Zhuang, 2017. Monitoring small reservoirs' storage with satellite remote sensing in inaccessible areas. Hydrology and Earth System Sciences 21(12). DOI: 10.5194/hess-21-6445-2017
  • Pina J., A. Tilmant and P. Côté, 2017. Optimizing Multireservoir System Operating Policies Using Exogenous Hydrologic Variables. Water Resources Research. DOI: 10.1002/2017wr021701
  • Muller M., J. Yoon, S. Gorelick, N. Avisse and A. Tilmant. Impact of the Syrian refugee crisis on land use and transboundary freshwater resources. Proceedings of the National Academy of Sciences of the United States of America (PNAS), doi :10.1073/pnas.1614342113
  • Pina, J., A. Tilmant and F. Anctil, 2016. A horizontal approach to assess the impact of climate change on water resources systems. Journal of Water Resources Planning and Management, doi : 10.1061/(ASCE)WR.1943- 5452.0000737
  • Zhang, H., S. M. Gorelick, N. Avisse, A. Tilmant, D. Rajsekhar and J. Yoon, 2016. A New Temperature-Vegetation Triangle Algorithm with Variable Edges (TAVE) for Satellite-Based Actual Evapotranspiration Estimation. Remote Sensing, 8, 735; doi:10.3390/rs8090735
  • Arjoon,
    D., A. Tilmant, and M. Herrmann, 2016. Sharing water and benefits in
    transboundary river basins, Hydrol. Earth Syst. Sci., 20, 2135-2150,
  • Rougé,
    C., and A. Tilmant, 2016. Using stochastic dual dynamic programming in problems with multiple near-optimal solutions, Water
    Resour. Res., 52, doi:10.1002/2016WR018608
  • Macian-Sorribes H., M.
    Pulido-Velazquez and A. Tilmant, 2015. Definition of efficient
    scarcity-based water pricing policies through stochastic
    programming. Hydrol. Earth Syst. Sci. Discuss.,12, 771-779
  • Tilmant A., G. Marques
    and Y. Mohamed, 2014. A dynamic water accounting framework based on
    marginal resource opportunity cost. Hydrol. Earth Syst. Sci.
    Discuss.,18, 1-28
  • Arjoon D, Y. Mohamed and
    A. Tilmant, 2014. Hydro-economic Risk Assessment in the Eastern
    Nile River Basin. Water Resources and Economics. doi:10.1016/
  • Marques G. and A.
    Tilmant, 2013. The Economic Value of Coordination in Large Scale
    Multireservoir Systems: the Parana River case. Water Resources
    Research. 49, doi:10.1002/2013WR013679
  • Mertens J., B. Wehrli,
    A. Tilmant, A.J. Schleiss, T. Cohen and J.P. Matos, 2013. Adapted
    reservoir management in the Zambezi river basin to meet
    environmental needs. Hydropower & Dams (2): 80-84
  • Tilmant A., D. Arjoon
    and G. Marques, 2012. The economic value of storage in
    multireservoir systems. Journal of Water Resources Planning and
    Management, ASCE, doi: 10.1061/(ASCE)WR.1943-5452.0000335
  • Tilmant A. and W.
    Kinzelbach, 2012. Le partage de l'eau et des bénéfices dans les
    bassins hydrographiques internationaux. Liaison Energie-Francophonie
    92: 22-26
  • Tilmant A. and W.
    Kinzelbach, 2012. The cost of noncooperation in international
    river basins, Water Resources Research, 48, W01503,
  • Tilmant A., W.
    Kinzelbach, D. Juizo, L. Beevers, D. Senn and C. Cassarotto, 2012.
    Economic Valuation of Benefits and Costs Associated with the
    Coordinated Development and Management of the Zambezi Basin. Water
    Policy 14: 490-508.
  • Tilmant, A., L. Beevers,
    and B. Muyunda, 2010. Restoring a flow regime through the
    coordinated operation of a multireservoir system: The case of the
    Zambezi River basin, Water Resources Research, 46, W07533,
  • Goor, Q., R. Kelman and
    A. Tilmant, 2010. Optimal multipurpose-multireservoir operation
    model with variable productivity of hydropower plants, Journal of
    Water Resources Planning and Management (ASCE),
  • Goor, Q., C. Halleux, Y.
    Mohamed and A. Tilmant, 2010. Optimal operation of a multipurpose
    multireservoir system in the Eastern Nile river basin, Hydrology
    and Earth System Sciences, 14, 1895-1908
  • Annor F.O., N. van de
    Giesen, J. Liebe, P. van der Zaag, A. Tilmant and S.N. Odai, 2009.
    Delineation of small reservoirs using radar imagery in a semi-arid
    environment: A case study in the upper east region of Ghana. Physics
    and Chemistry of the Earth 34: 309-315
  • Tilmant A., Q. Goor, and
    D. Pinte, 2009. Agricultural-to-hydropower water transfers: Sharing
    water and benefits in hydropower-irrigation systems, Hydrology and
    Earth System Sciences, 13, 1091-1101
  • Lamei A., A. Tilmant, P.
    van der Zaag and E. Imam, 2009. Dynamic progrmming of capacity
    expansion for reverse osmosis desalination plant: Sharm El Sheikh,
    Egypt. Water Science & Technology 9(3): 233-246
  • Tilmant A., D. Pinte,
    and Q. Goor, 2008. Assessing marginal water values in multipurpose
    multireservoir systems via stochastic programming, Water Resources
    Research, 44, W12431, doi:10.1029/2008WR007024
  • Van Cauwenbergh N., D.
    Pinte, A. Tilmant, I. Frances, A. Pulido-Bosch and M. Vanclooster,
    2008. Multi-objective, multiple participant decision support for
    water management in the Andarax catchment, Almeria. Environmental
    Geology 54(3): 479-48
  • Tilmant A., J. Lettany,
    and R. Kelman, 2007. Hydrological risk assessment in the
    Euphrates-Tigris river basin: A stochastic dual dynamic programming
    approach. Water International 32(2): 294-309
  • Tilmant A., and R.
    Kelman, 2007. A stochastic approach to analyze trade-offs and risks
    associated with large-scale water resources systems. Water Resources Research, 43, W06425, doi:10.1029/2006WR005094
  • Tilmant A., P. van der
    Zaag and P. Fortemps, 2007. Modeling and analysis of collective
    management of water resources. Hydrology and Earth System Science
  • Tilmant A., L.
    Duckstein, E. Persoons and M. Vanclooster, 2002. Comparison of
    Fuzzy and Non-fuzzy Optimal Reservoir Operating Policies. Journal of
    Water Resources Planning and Management (ASCE) 128(6): 390-398
  • Tilmant A., E. H. Faouzi
    and M. Vanclooster, 2002. Optimal Operation of Multipurpose
    Reservoir Operation Using Flexible Stochastic Dynamic Programming.
    Journal of Applied Soft Computing 32(2): 1-14
  • Tilmant A., P. Fortemps
    and M. Vanclooster, 2002. Effect of Averaging Operators in Fuzzy
    Optimization of Reservoir Operation. Journal of Water Resources
    Management 16(1): 1-22


  • American Geophysical Union
  • Fédération Royale d'Associations Belges d'Ingénieurs
  • Institut EDS (U. Laval)
  • Canadian Water Resources Association

Supervision d'étudiants aux cycles supérieurs

Maitrise en génie des eaux: production hydroélectrique

Dans le cadre d’un projet sur les inondations au Canada, le département de génie civil et de génie des eaux recherche un(e) candidat(e) pour une maitrise sur l’utilisation des prévisions hydrologiques en production hydroélectrique. Le projet se déroulera dans le bassin de la Madawaska en Ontario et se réalisera en partenariat avec Ontario Power Generation, les hydrologues de l’Université Laval et de l’Université de Waterloo.

PhD students

  • Hajar Nikghalb Ashouri (2016 - ...). Real-time Optimization of Multireservoir Systems Operation
  • Diane Arjoon (2012 - 2016). Water and Benefit Sharing in Transboundary River Basins
  • Thibault Lachaut (2013 - ...). Risk Analysis in Decentralized Water Systems 
  • Nicolas Avisse (2014 -...). Modelling Water Management in Conflict Prone Areas
  • Jasson Pina (2014 -...). The Value of Hydrologic Information in Multireservoir Systems Operation

MSc students

  • Frédéric Boulay-Côté (2016 - ...). To be determined
  • Fatemeh Movahedinia (2012 - 2014). Assessing hydro-climatic uncertainties on hydropower generation
  • Aida Thiam (2012 - 2015). Allocation optimale de l'eau dans le bassin du fleuve Sénégal

Formation et expériences professionnelles

Ing., Ph.D. (Université catholique de Louvain, Belgique)

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