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Dynamic Simulation and Visualisation of Coastal Erosion: Past present and future

Lookup NU author(s): Dr Mike Walkden


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A key requirement for effective coastal zone management is good knowledge and prediction of land erosion rates due to encroachment of the sea. However, in addition to demarcation of the hazard through modelling and mapping, a policy of risk mitigation necessitates equal attention should be addressed to communicating its transient behaviour. With climate change and sea level rise implying that historical rates of change may not be a reliable guide for the future, enhanced visualisation provides a very powerful means to inform decision makers of this changing risk. This can be achieved by linking scientific modelling with the transformation of digital elevation models, then using GIS to integrate other spatio-temporal content. The resulting high-resolution visualisations can meet the demand from users for realism and apparent authenticity, but it inevitably produces a tension with the underlying scientific content because of the extrapolation of necessary extra detail, and the lack of established procedures to communicate uncertainty in visualisation. These issues are explored through analysis of future cliff erosion in Norfolk on the eastern coast of Great Britain.

Publication metadata

Author(s): Walkden M; Brown I; Jude S; Koukoulas S; Nicholls R; Dickson M

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceecings of the Conference on GIS Research UK

Year of Conference: 2004