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Transient scenarios for robust climate change adapation illustrated for water management in The Netherlands

M Haasnoot, J Schellekens, JJ Beersma, H Middelkoop, JCJ Kwadijk

Climate scenarios are used to explore impacts of possible future climates and to assess the robustness of adaptation actions across a range of futures. Time-dependent climate scenarios are commonly used in mitigation studies. However, despite the dynamic nature of adaptation, most scenarios for local or regional decision making on climate adaptation are static ‘endpoint’ projections. This paper describes the development and use of transient (time-dependent) scenarios by means of a case on water management in the Netherlands. Relevant boundary conditions (sea level, precipitation and evaporation) were constructed by generating an ensemble of synthetic time-series with a rainfall generator and a transient delta change method. Climate change impacted river flows were then generated with a hydrological simulation model for the Rhine basin. The transient scenarios were applied in model simulations and game experiments.Weargue that there are at least three important assets of using transient scenarios for supporting robust climate adaptation: (1) raise awareness about (a) the implications of climate variability and climate change for decision making and (b) the difficulty
of finding proof of climate change in relevant variables for water management; (2) assessment of when to adapt by identifying adaptation tipping points which can then be used to explore adaptation pathways, and (3) identification of triggers for climate adaptation.

Bibliografische gegevens

M Haasnoot, J Schellekens, JJ Beersma, H Middelkoop, JCJ Kwadijk. Transient scenarios for robust climate change adapation illustrated for water management in The Netherlands
published, Environmental Research Letters, 2015, 10

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