Calculation of littoral sand transport rate

Kamphuis, J. William; Davies, M.; Nairn, Robert B.; Sayao, Otavio J.

doi:10.1016/0378-3839(86)90036-0

Cited by 112 publications

(79 citation statements)

References 6 publications

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“…where ρ s and ρ w are the soil and sea water densities, respectively, g is the acceleration due to gravity, and I l is the underwater weight of material moved alongshore per second (Kamphuis et al, 1986). The porosity is a primary determinant of the density and permeability of sediments; therefore, the porosity is a vital input for basin modelling (Chuhan et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Beach nourishment effects on sand porosity variability

Román-Sierra

Muñoz-Pérez

Navarro-Pons

2014

Coastal Engineering

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A standard assumption in coastal engineering is that the porosity of natural beach sand (non-cohesive) is 40%. However, is this assumption correct for all beach sand? This paper proposes an accurate and simplified method to assess changes in sand porosity after beach nourishment by means of in-situ density surveys through a nuclear densimeter. This novel application has been applied to different beaches in the southwest of Spain according to the tidal range, grain size and beach morphology in several terms. General results show that sand porosities range from 25.6% to 43.4% after beach nourishment works. This research can be considered a support tool in coastal engineering to find shifting sand volumes as a result of sand porosity variability after beach nourishment and later marine influence.

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Section: Introductionmentioning

confidence: 99%

Beach nourishment effects on sand porosity variability

Román-Sierra

Muñoz-Pérez

Navarro-Pons

2014

Coastal Engineering

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“…Certains modèles de l'évolution du littoral ont été fondés sur la détermination de la hauteur et la période des vagues qui atteignent le rivage et sur l'évaluation de la proportion de cette énergie qui contribue effectivement au transport littoral des sédiments, soit en calculant directement le flux d'énergie des vagues, soit en évaluant la contrainte de cisaillement eausédiment (Kamphuis et al, 1986). On peut ainsi quantifier le volume de sédiments transportés et estimer l'érosion ou la sédimentation qui en résulte.…”

Section: Introductionunclassified

Modélisation de l’évolution du littoral des îles de la Madeleine, Québec

Drapeau¹,

Mercier²

2007

gpq

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RÉSUMÉL'hypothèse selon laquelle le bilan périphérique de l'érosion et de la sédimentation du littoral d'une île devrait être essentiellement nul a été vérifiée aux îles de la Madeleine, un ensemble d'îles de 70 km de longueur situé au centre du golfe du Saint-Laurent. Le principe de continuité a servi à élaborer un modèle qui permet d'établir le bilan sédimentaire du littoral. Les volumes de sédiments associés à l'érosion et à la sédimentation du littoral ont été calculés en déterminant d'une part l'avancée ou le retrait de la ligne de rivage et en déterminant d'autre part le profil de la plage. Pour ce faire, le littoral a été divisé en segments de 500 m de largeur auxquels ont été associés 236 profils de plage. Les résultats montrent que le bilan sédimentaire des plages est essentiellement nul, la sédimentation dépassant l'érosion de seulement 1300 m3/an. Le littoral des îles de la Madeleine est néanmoins très dynamique puisque l'érosion totalise 294 800 m'an et la sédimentation. 296 100 m3/an. L'érosion des falaises a été calculée en supposant un retrait uniforme de 30 cm an, ce qui donne un taux d'érosion de quelque 172 500m3/an. L'analyse détaillée de l'érosion et de la sédimentation littorales a permis de mettre en évidence la configuration du transport littoral autour des îles.

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“…1) works as a black box; wave energy is known and all of this is supossed to be used for moving the sediments, however, there are some other expressions, as the one proposed by Kraus et al (1982) and Kamphuis et al (1986) which include the beach characteristics, like the grain size and the slope. The obtained results of these must be compared with sand volume measurements of the studied area.…”

Section: En La Figura 4 Se Resumen Las Ideas Anteriores;mentioning

confidence: 99%

Longshore sand transport in a zone of Bahia de Todos Santos, B.C., Mexico during April, August and October of 1985

Torres-N¹

2021

Cienc. Mar.

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According to wave data recorded by a two pressure sensors array during the months of April, August and October of 1985 at the spit of the estero de Punta Banda, B.C., the net longshore sediment transport was calculated. Results show a study area that has been exposed to the swells from the South in April and August, and to swells from the north with local waves in October. The transport values obtained are 384 and 10.56 m3 d–1 towards the estero mouth in April and August respectively, and a value of 110.4 m3 d–1to Punta Banda in October.

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Calculation of littoral sand transport rate

Cited by 112 publications

References 6 publications

Beach nourishment effects on sand porosity variability

Beach nourishment effects on sand porosity variability

Modélisation de l’évolution du littoral des îles de la Madeleine, Québec

Longshore sand transport in a zone of Bahia de Todos Santos, B.C., Mexico during April, August and October of 1985

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