Gravel beach profile response allowing for bimodal sea states
| Autor: | Tim Pullen, Jack Eade, Andrea Polidoro, Travis Mason, David Wyncoll, Belen Blanco |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
Flood myth Electromagnetic spectrum 020209 energy Ocean Engineering 02 engineering and technology 01 natural sciences Swell Climatology Parametric model Wind wave 0202 electrical engineering electronic engineering information engineering Erosion Crest Coastal engineering Geology 0105 earth and related environmental sciences |
| Zdroj: | Proceedings of the Institution of Civil Engineers - Maritime Engineering. 171:145-166 |
| ISSN: | 1751-7737 1741-7597 |
| DOI: | 10.1680/jmaen.2018.11 |
| Popis: | The south coast of the UK is identified as a location where significant wave swell components are present within the regional wave climate. During the winters of 2006 and 2014, several sites along the south coast of the UK were subject to significant damages where flood events were recorded. These sea states were characterised by having a double-peaked wave spectra, observing a connection between wave spectrum shape and beach response. A two-dimensional (2D) physical model study was carried out to investigate the effect of gravel beach profile response under wave spectra characterised by swell-wave and wind-wave periods in various combinations. The physical model results showed the effect of bimodal wave spectrum on beach crest erosion and were compared with the parametric model Shingle and the numerical model XBeach-G. Based on this 2D physical model study, a new parametric model, Shingle-B, was derived and an online tool developed and made available on the website for the National Network of Regional Coastal Monitoring Programmes of England. This new tool has been validated at two sites in the south of England where field data of both waves and profiles were available. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|