Coastal vulnerability of a pinned, soft-cliff coastline - Part I: Assessing the natural sensitivity to wave climate

Journal Article (Journal Article)

The impact of future sea-level rise on coastal erosion as a result of a changing climate has been studied in detail over the past decade. The potential impact of a changing wave climate on erosion rates, however, is not typically considered. We explore the effect of changing wave climates on a pinned, soft-cliff, sandy coastline, using as an example the Holderness coast of East Yorkshire, UK. The initial phase of the study concentrates on calibrating a numerical model to recently measured erosion rates for the Holderness coast using an ensemble of geomorphological and shoreface parameters under an observed offshore wave climate. In the main phase of the study, wave climate data are perturbed gradually to assess their impact on coastal morphology. Forward-modelled simulations constrain the nature of the morphological response of the coast to changes in wave climate over the next century. Results indicate that changes to erosion rates over the next century will be spatially and temporally heterogeneous, with a variability of up to ±25% in the erosion rate relative to projections under constant wave climate. The heterogeneity results from the current coastal morphology and the sediment transport dynamics consequent on differing wave climate regimes.

Full Text

Duke Authors

Cited Authors

  • Barkwith, A; Thomas, CW; Limber, PW; Ellis, MA; Murray, AB

Published Date

  • June 3, 2014

Published In

Volume / Issue

  • 2 / 1

Start / End Page

  • 295 - 308

Electronic International Standard Serial Number (EISSN)

  • 2196-632X

International Standard Serial Number (ISSN)

  • 2196-6311

Digital Object Identifier (DOI)

  • 10.5194/esurf-2-295-2014

Citation Source

  • Scopus