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Error determination in the photogrammetric assessment of shoreline changes

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URI: http://hdl.handle.net/10498/15668

DOI: 10.1007/s11069-012-0407-y

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NatHaz2013_DelRio and Gracia_manuscriptaccepted.pdf (572.6Kb)
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Author/s
Río Rodríguez, Laura delAuthority UCA; Gracia Prieto, Francisco JavierAuthority UCA
Date
2013-01-01
Department
Ciencias de la Tierra
Source
Natural Hazards (2013) 65 (3) pp. 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).
Subjects
photogrammetry; coastal erosion; shoreline changes; aerial photography; error
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  • Artículos Científicos [4803]
  • Articulos Científicos CC. Tierra [114]

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