Abstract
Many coastal erosion models are designed to be used at transects or discrete points but they produce valid results only for locations that meet a set of well-defined criteria. Results obtained from these models are difficult to generalize, since adjoining areas may not meet these requirements. In this paper, a GIS-based methodology is described for combining the results from two two-dimensional coastal erosion models and a three-dimensional static inundation model to forecast the possible response of a coastline to several alternative sea level rise scenarios. These shoreline forecasts are unique in that they integrate results obtained from several different models and allow graphical representations of these alternative future shorelines to be produced. Coastal planners may use these integrated shoreline forecasts to assess the possible impact of sea level rise on a given region. To demonstrate this methodology a case study was conducted for Nags Head, North Carolina.
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