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The Coastal Genesis 2 research programme: outputs, outcomes and impact
Lodder, Q.J.; Slinger, J.H.; Wang, Z.B.; van der Spek, A.J.F.; Hijma, M.P.; Taal, M.; van Gelder-Maas, C.; de Looff, H.; Litjens, J.; Schipper, C.A.; Löffler, M.; Nolte, A.J.; van Oeveren, C.; van der Werf, J.J.; Grasmeijer, B.T.; Elias, E.P.L.; Holzhauer, H.; Tonnon, P.K. (2023). The Coastal Genesis 2 research programme: outputs, outcomes and impact. Ocean Coast. Manag. 237: 106499.
Peer reviewed article  

Beschikbaar in  Auteurs 

Author keywords
    Dutch Coastal policy development; Sediment budget; Nourishment strategy; Conceptual model; Flood and Erosion risk; Policy impact

Auteurs  Top 
  • Lodder, Q.J.
  • Slinger, J.H.
  • Wang, Z.B., meer
  • van der Spek, A.J.F., meer
  • Hijma, M.P., meer
  • Taal, M., meer
  • van Gelder-Maas, C.
  • de Looff, H.
  • Litjens, J.
  • Schipper, C.A.
  • Löffler, M.
  • Nolte, A.J., meer
  • van Oeveren, C.
  • van der Werf, J.J., meer
  • Grasmeijer, B.T.
  • Elias, E.P.L., meer
  • Holzhauer, H., meer
  • Tonnon, P.K.

    The long-term sediment demand of the Dutch coast is integral to the current Dutch Coastal Flood and Erosion Risk Management policy. The Coastal Genesis 2 research programme was initiated to address the sustainability of this policy under sea level rise by focusing on key uncertainties in the conceptual model of the sediment demand of the Dutch coast. The substantive scientific contributions of the Coastal Genesis 2 research programme are analysed in this paper by applying an output-outcome-impact framework. The direct outputs of the programme are categorised in terms of the knowledge types of a 5-element framework, namely measurement data, simulation models, system understanding, conceptual models, and policy and practice. The research outcomes arise from the interactions of these knowledge types. Our analysis of these outcomes highlights that synthesising new scientific insights into shared conceptual models is critical to achieving impact in policy and practice. In the Dutch situation, a new shared conceptual model of the long-term sediment demand enabled the development of four potential nourishment strategies aiming to meet the strategic goals of the Coastal Flood and Erosion Risk Management policy on a timescale up to 20 years. In 2021, the Minister of Infrastructure and Water Management officially articulated her intention to adopt the advised nourishment strategy from 2024 onwards. This represents a lasting impact of the Coastal Genesis 2 research programme in policy and practice. Further, the insight regarding the pivotal role of shared conceptual models as intermediary between science, policy and practice may prove useful in the design of future research programmes aiming to influence policy.

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