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Optimising 4-D surface change detection: an approach for capturing rockfall magnitude–frequency (2018)

Copernicus

In: Earth Surface Dynamics Discussions

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Publikationsdatum: 2018-03-06

Beschreibung: Optimising 4-D surface change detection: an approach for capturing rockfall magnitude–frequency Jack G. Williams, Nick J. Rosser, Richard J. Hardy, Matthew J. Brain, and Ashraf A. Afana Earth Surf. Dynam., 6, 101-119, https://doi.org/10.5194/esurf-6-101-2018, 2018 We present a method to analyse surface change using 3-D data collected at hourly intervals. This is applied to 9000 surveys of a failing rock slope, acquired over 10 months. A higher proportion and frequency of small rockfall is observed than in less-frequent (e.g. monthly) monitoring. However, quantifying longer-term erosion rates may be more suited to less-frequent data collection, which contains lower accumulative errors due to the number of surveys and the lower proportion of small events.

Digitale ISSN: 2196-6338

Thema: Geologie und Paläontologie

Publiziert von Copernicus

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