A new process–response coastal recession model of soft rock cliffs

Castedo, Ricardo; Murphy, William M.; Lawrence, James; Paredes, Carlos

doi:10.1016/j.geomorph.2012.07.020

Cited by 62 publications

(61 citation statements)

References 34 publications

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“…A conceptual ground model for the description of the cliff erosion processes is illustrated in Figure 1 (Castedo et al, 2012). …”

Section: Generalmentioning

confidence: 99%

“…from Lee et al (2001) and Castedo et al (2012). These conceptual models have been developed considering a series of different factors and interactions, trying to capture the natural variability of the cliff system.…”

Section: Process -Response Systemsmentioning

confidence: 99%

“…Furthermore, the style of failure is also difficult to be taken into account. The model from Castedo et al (2012) tries to comprise a limit equilibrium approach. However, the complexity of these systems cannot be analysed from general approaches but only with site specific analysis.…”

Section: Process -Response Systemsmentioning

confidence: 99%

“…The cliff recession is a non-linear and nonuniform process in space and time and is affected by a variety of factors that regulate the rates of detachment and transport (Moore et al, 2010). The recession rates, the retreat mode and the erosion mechanism are site specific (Naylor et al, 2010), depending on the geological variation in both vertical and horizontal direction (Castedo et al, 2012;Rosser et al, 2013), the changes in the pore water pressure conditions (Rosser et al, 2013) and seepage erosion (Lee and Clark, 2002), the rock strength (Sunamura, 1982;Collins and Sitar, 2008), the structure of the material (Allison and Kimber, 1998), the orientation and the potency of the environmental forces (Adams et al, 2002), the presence of beach sediments which act as a barrier (Limber and Murray, 2011) and the climate (Castedo et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Coastal Cliff Instability, a Case Study From the Uk

Saroglou

Alexandrou

2017

geosociety

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“…A conceptual ground model for the description of the cliff erosion processes is illustrated in Figure 1 (Castedo et al, 2012). …”

Section: Generalmentioning

confidence: 99%

Section: Process -Response Systemsmentioning

confidence: 99%

Section: Process -Response Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Coastal Cliff Instability, a Case Study From the Uk

Saroglou

Alexandrou

2017

geosociety

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“…In some areas, such as the soft-rock cliffs of France (Chapter 6 by Gómez-Pujo et al 2014) and the UK (Chapter 3 by Lim 2014), groundwater flow can determine the nature and timing of cliff collapse and hence shoreline retreat (Duperret et al 2005;Castedo et al 2012).…”

Section: Geologymentioning

confidence: 99%

Chapter 1 Introduction to the rock coasts of the world

Kennedy

Stephenson

Naylor

2014

Memoirs

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Unraveling the dynamics that scale cross‐shore headland relief on rocky coastlines: 1. Model development

et al. 2014

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We have developed an exploratory model of plan view, millennial-scale headland and bay evolution on rocky coastlines. Cross-shore coastline relief, or amplitude, arises from alongshore differences in sea cliff lithology, where durable, erosion-resistant rocks protrude seaward as headlands and weaker rocks retreat landward as bays. The model is built around two concurrent negative feedbacks that control headland amplitude: (1) wave energy convergence and divergence at headlands and bays, respectively, that increases in intensity as cross-shore amplitude grows and (2) the combined processes of beach sediment production by sea cliff erosion, distribution of sediment to bays by waves, and beach accumulation that buffers sea cliffs from wave attack and limits further sea cliff retreat. Paired with the coastline relief model is a numerical wave transformation model that explores how wave energy is distributed along an embayed coastline. The two models are linked through genetic programming, a machine learning technique that parses wave model results into a tractable input for the coastline model. Using a pool of 4800 wave model simulations, genetic programming yields a function that relates breaking wave power density to cross-shore headland amplitude, offshore wave height, approach angle, and period. The goal of the coastline model is to make simple, but fundamental, scaling arguments on how different variables (such as sea cliff height and composition) affect the equilibrium cross-shore relief of headland and bays. The model's generality highlights the key feedbacks involved in coastline evolution and allows its equations (and model behaviors) to be easily modified by future users.

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A new process–response coastal recession model of soft rock cliffs

Cited by 62 publications

References 34 publications

Coastal Cliff Instability, a Case Study From the Uk

Coastal Cliff Instability, a Case Study From the Uk

Chapter 1 Introduction to the rock coasts of the world

Unraveling the dynamics that scale cross‐shore headland relief on rocky coastlines: 1. Model development

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