An integrated assessment Metamodel for developing adaption pathways for the Rhine Delta in the Netherlands

Marjolijn Haasnoot, Willem P.A. van Deursen, Hans Middelkoop, Eelco van Beek, Nanda Wijermans

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Abstract

Water management is increasingly challenged by pressures from population growth, sea level rise and potential climate change. Moreover, these developments are highly uncertain and change over time. The challenge is to develop strategies that are either robust - insensitive to the future - or flexible enough to adapt to changing conditions. Adaptation is not only determined by what is known or anticipated at present, but also by what will be experienced and learned while the future unfolds, and by policy responses to social and water events. As a result, an adaptation pathway emerges. Exploring adaptation pathways into the future will provide indispensable support to decisionmaking in achieving sustainable water management. For a structured exploration of the various adaptation pathways, we are developing a computational model of the Rhine Delta in the Netherlands. With this model, we will simulate an evolvement of the system wherein pressures influence the water system state, and impacts on flood risk and water services such as agriculture and nature, which may then trigger a policy response. The result of this dynamic simulation is an adaptation pathway. The model should run fast enough to calculate many 100-year transient scenarios, representing the dominant processes and natural variability, and be able to implement various policy options. To enable such dynamic modelling we are developing an Integrated Assessment MetaModel (IAMM) using the technique of metamodelling. Metamodels are simple aggregated models that approximate the behaviour of complex and detailed models. The IAMM is simple in terms of process and spatial information, but complex in terms of time-series and policy response. The challenge is to capture enough detail and process information ensuring an adequate model behavior for policy analysis. We present the concept and describe for which situations - policy options and effects - the model can be used to support decisionmaking under uncertainty.
Original languageEnglish
Title of host publicationiEMSs 2012 Proceedings
EditorsR. Seppelt, A.A. Voinov, S. Lange, D. Bankamp
Place of PublicationLeipzig, Germany
PublisherInternational Environmental Modelling and Software Society (iEMSs)
Pages1743-1751
ISBN (Print)978-88-9035-742-8
Publication statusPublished - 1 Jul 2012
Event6th International Congress on Environmental Modelling and Software 2012: Managing Resources of a Limited Planet: Pathways and Visions under Uncertainty - Leipzig, Germany
Duration: 1 Jul 20125 Jul 2012
Conference number: 6

Conference

Conference6th International Congress on Environmental Modelling and Software 2012
CountryGermany
CityLeipzig
Period1/07/125/07/12

Keywords

  • Metamodel
  • Adaptation pathways
  • Water management
  • Uncertainty

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    Haasnoot, M., van Deursen, W. P. A., Middelkoop, H., van Beek, E., & Wijermans, N. (2012). An integrated assessment Metamodel for developing adaption pathways for the Rhine Delta in the Netherlands. In R. Seppelt, A. A. Voinov, S. Lange, & D. Bankamp (Eds.), iEMSs 2012 Proceedings (pp. 1743-1751). Leipzig, Germany: International Environmental Modelling and Software Society (iEMSs).