Error determination in the photogrammetric assessment of shoreline changes

Laura Río () and F. Gracia

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2013, vol. 65, issue 3, 2385-2397

Abstract: The evaluation of error or uncertainty in shoreline change studies is an issue of prime importance for providing an adequate framework for calculated rates of change and to allow the establishment of threshold values above which the rates would be significant. In this note, a practical, easy-to-use method is presented to estimate error involved in the calculation of shoreline changes on aerial photographs, including the three most used types of shoreline indicators: high water line, dune/cliff toe and cliff top. This approach takes into account the specific characteristics of each shoreline proxy, such as relief in the case of the cliff top or tidal oscillations in the case of the high water line. At the same time it includes the error components that are independent from the proxy, basically related to the technical aspects of the process such as photo scanning and georeferencing. A practical example of application of the method is provided for several types of data inputs, based on shoreline changes around the Bay of Cádiz (SW Spain). Copyright Springer Science+Business Media Dordrecht 2013

Keywords: Photogrammetry; Coastal erosion; Shoreline changes; Aerial photography; Error (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s11069-012-0407-y

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