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Spatial modeling and analysis for shoreline change detection and coastal erosion monitoring
Li, R.; Liu, J.-K.; Felus, Y. (2001). Spatial modeling and analysis for shoreline change detection and coastal erosion monitoring. Mar. Geod. 24: 1-12
In: Marine Geodesy. Taylor & Francis: Philadelphia, PA etc.. ISSN 0149-0419, more
Peer reviewed article  

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  • Li, R.
  • Liu, J.-K.
  • Felus, Y.

    Coastal erosion presents a serious problem throughout U.S. coastal areas. The Ohio Geological Survey estimates that more than 3,200 acres of Ohio’s Lake Erie shore have been lost to erosion since the 1870s, resulting in economic losses exceeding tens of millions of dollars per year. This article presents research results of a project that monitors shoreline erosion using high-resolution imagery and examines erosion causes. Spatial modeling and analysis methods are applied to the project area along the south shore of Lake Erie. The shoreline is represented as a dynamically-segmented linear model that is linked to a large amount of data describing shoreline changes. A new method computes an instantaneous shoreline using a digital water level model, a coastal terrain model, and bathymetric data. This method provides an algorithm for deriving the Mean-Lower Low Water (MLLW) and the Mean High Water (MHW) shorelines that are essential to navigation charts. The results describe a part of our effort towards a coastal spatial information infrastructure to support management and decision-making in the dynamic coastal environment.

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