Colección SciELO Chile

Departamento Gestión de Conocimiento, Monitoreo y Prospección
Consultas o comentarios: productividad@anid.cl
Búsqueda Publicación
Búsqueda por Tema Título, Abstract y Keywords



Small-scale bedforms and associated sediment transport in a macro-tidal lower shoreface
Indexado
WoS WOS:000679207400003
Scopus SCOPUS_ID:85108418860
DOI 10.1016/J.CSR.2021.104483
Año 2021
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Ripples and small-scale bedforms are ubiquitous in shallow water environments under the combined action of currents and waves. Small scale processes linked to their formation and migration are interconnected with sediment transport at larger scales (e.g. tens of metres to kilometres), both resulting in and being affected by large scale sediment transport and geomorphological evolution. The lower shoreface provides a key link between coasts and continental shelves, but the contribution of ripples and small-scale bedforms to sediment transport in this region has yet to be fully addressed. This work presents a study of sediment dynamic processes on the lower shoreface in the presence of small-scale bedforms. Observations were made during the winter of 2017 on the lower shoreface of Perranporth Beach, which is in the south west of the UK and exposed to Atlantic waves. The analysis of morphological expressions and the variability of ripples under waves, currents and wave-current conditions are assessed. Ripple morphology and associated dynamics are analysed for their potential contribution to the exchange of sediment between the lower and the upper shoreface. In the present study it was observed that even though ripples were evolving depending on the wave-current forcing, little ripple migration was observed due to low wave skewness. The implication is that ripple migration and bedload transport are only a small contribution to onshore sediment transport under low to moderate energy conditions. However, during more energetic conditions, ripples were washed out and the wave skewness increased, resulting in onshore sediment transport under a sheet flow regime. This suggests that ripple formation and migration can have little impact on the cross-shore supply of sediment from the lower shoreface to the upper shoreface and that more energetic wave conditions are required to significantly transport sediment towards the beach.

Revista



Revista ISSN
Continental Shelf Research 0278-4343

Métricas Externas



PlumX Altmetric Dimensions

Muestra métricas de impacto externas asociadas a la publicación. Para mayor detalle:

Disciplinas de Investigación



WOS
Oceanography
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

Muestra la distribución de disciplinas para esta publicación.

Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



Muestra la distribución de colaboración, tanto nacional como extranjera, generada en esta publicación.


Autores - Afiliación



Ord. Autor Género Institución - País
1 Guerrero, Q. - Inst Ciencies Mar ICM CSIC - España
CSIC - Instituto de Ciencias del Mar (ICM) - España
2 Williams, Megan Mujer Natl Oceanog Ctr - Reino Unido
Universidad Técnica Federico Santa María - Chile
National Oceanography Centre - Reino Unido
National Oceanography Centre Southampton - Reino Unido
3 Guillen, J. - Inst Ciencies Mar ICM CSIC - España
CSIC - Instituto de Ciencias del Mar (ICM) - España
4 Lichtman, I. D. - Natl Oceanog Ctr - Reino Unido
National Oceanography Centre - Reino Unido
National Oceanography Centre Southampton - Reino Unido
5 Thorne, Peter D. Hombre Natl Oceanog Ctr - Reino Unido
National Oceanography Centre - Reino Unido
National Oceanography Centre Southampton - Reino Unido
6 Amoudry, Laurent Hombre Natl Oceanog Ctr - Reino Unido
National Oceanography Centre - Reino Unido
National Oceanography Centre Southampton - Reino Unido

Muestra la afiliación y género (detectado) para los co-autores de la publicación.

Financiamiento



Fuente
CIGIDEN
Ministerio de Economía y Competitividad
Fondo Nacional de Desarrollo Científico y Tecnológico
Spanish Ministry of Economy and Competitiveness
National Research Center for Integrated Natural Disaster Management
Chilean FONDECYT Project
National Research Center for Integrated Natural Disaster Management (CIGIDEN)
Natural Environment Research Council
Family Process Institute
Spanish Ministry of Economy and Competitiveness in the frame of the project FORMED
Geoff Hargreaves
NOC-NERC
NOC
VORF

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
QG was also supported by a mobility grant to develop short stays at the National Oceanography Centre, Liverpool (NOC-NERC) (ref: EEBB-I-17-11989) from the Spanish Ministry of Economy and Competitiveness. The authors wish to acknowledge funding from the Natural Environment Research Council to the BLUEcoast project (grant numbers NE/015894/1 and NE/015894/2) . MEW was partially supported by Chilean Fondecyt project 11191077 and the National Research Center for Integrated Natural Disaster Management (CIGIDEN, ANID/FONDAP 15110017) .
QG was also supported by a mobility grant to develop short stays at the National Oceanography Centre, Liverpool (NOC-NERC) (ref: EEBB-I-17-11989) from the Spanish Ministry of Economy and Competitiveness. The authors wish to acknowledge funding from the Natural Environment Research Council to the BLUEcoast project (grant numbers NE/015894/1 and NE/015894/2) . MEW was partially supported by Chilean Fondecyt project 11191077 and the National Research Center for Integrated Natural Disaster Management (CIGIDEN, ANID/FONDAP 15110017) .
QG was supported by an FPI grant (ref. BES-2013-066261 ) from the Spanish Ministry of Economy and Competitiveness in the frame of the project FORMED (CGL2012-33989). QG was also supported by a mobility grant to develop short stays at the National Oceanography Centre, Liverpool (NOC-NERC) (ref: EEBB-I-17-11989) from the Spanish Ministry of Economy and Competitiveness . The authors wish to acknowledge funding from the Natural Environment Research Council to the BLUEcoast project (grant numbers NE/015894/1 and NE/015894/2 ). MEW was partially supported by Chilean Fondecyt project 11191077 and the National Research Center for Integrated Natural Disaster Management (CIGIDEN, ANID/FONDAP 15110017).
QG was supported by an FPI grant (ref. BES-2013-066261 ) from the Spanish Ministry of Economy and Competitiveness in the frame of the project FORMED (CGL2012-33989). QG was also supported by a mobility grant to develop short stays at the National Oceanography Centre, Liverpool (NOC-NERC) (ref: EEBB-I-17-11989) from the Spanish Ministry of Economy and Competitiveness . The authors wish to acknowledge funding from the Natural Environment Research Council to the BLUEcoast project (grant numbers NE/015894/1 and NE/015894/2 ). MEW was partially supported by Chilean Fondecyt project 11191077 and the National Research Center for Integrated Natural Disaster Management (CIGIDEN, ANID/FONDAP 15110017).

Muestra la fuente de financiamiento declarada en la publicación.