Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina

Our study shows several morphodynamic changes occurred along a coastal sector downstream of a groin built at Camet Norte locality (Buenos Aires province) by the end of 2011. During the time span analyzed (July 2011-December 2015), at a control site located 200 m north of the structure, downstream re...

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Autores principales: Medina, R.A., Martínez, A.L., Mormeneo, L., Richiano, S.M.
Formato: JOUR
Materias:
Beaches
Cliffs
Erosion
Groin
Littoral drift
beach
cliff
coastal erosion
coastal morphology
coastal sediment
groin
morphodynamics
shoreline change
Argentina
Buenos Aires [Argentina]
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v73_n2_p270_Medina
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00044822_v73_n2_p270_Medina
record_format dspace
spelling todo:paper_00044822_v73_n2_p270_Medina2023-10-03T13:59:12Z Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina Medina, R.A. Martínez, A.L. Mormeneo, L. Richiano, S.M. Beaches Cliffs Erosion Groin Littoral drift beach cliff coastal erosion coastal morphology coastal sediment groin morphodynamics shoreline change Argentina Buenos Aires [Argentina] Our study shows several morphodynamic changes occurred along a coastal sector downstream of a groin built at Camet Norte locality (Buenos Aires province) by the end of 2011. During the time span analyzed (July 2011-December 2015), at a control site located 200 m north of the structure, downstream relative to the littoral drift, it was possible to observe that the sand level on the beach was seldom higher than that recorded in July 2011, four months before the groin was built. The opposite occurred in other three control sites placed more than 1,275 m far from the new groin, where the sand level was seldom lower than that observed in July 2011. In addition, along the whole year, the size of the sandy particles of the foreshore in the area localized near the structure was generally higher than that of the remaining control sites, suggesting stronger wave energy within the corresponding coastal sector. Most probably, within control site localized next to groin coastal sector a lower sandy level together with stronger wave energy allowed a direct influx and effect of the waves during the whole time span. This is reflected by a stronger retreat of the main cliff and especially the microcliff, with a total of 96 and 350 cm (22 and 79 cm/year), respectively. These retreats are linked mainly to short marine events locally known as “sudestadas”. © 2016, Asociacion Geologica Argentina. All rights reserved. Fil:Martínez, A.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v73_n2_p270_Medina
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Beaches
Cliffs
Erosion
Groin
Littoral drift
beach
cliff
coastal erosion
coastal morphology
coastal sediment
groin
morphodynamics
shoreline change
Argentina
Buenos Aires [Argentina]
spellingShingle Beaches
Cliffs
Erosion
Groin
Littoral drift
beach
cliff
coastal erosion
coastal morphology
coastal sediment
groin
morphodynamics
shoreline change
Argentina
Buenos Aires [Argentina]
Medina, R.A.
Martínez, A.L.
Mormeneo, L.
Richiano, S.M.
Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina
topic_facet Beaches
Cliffs
Erosion
Groin
Littoral drift
beach
cliff
coastal erosion
coastal morphology
coastal sediment
groin
morphodynamics
shoreline change
Argentina
Buenos Aires [Argentina]
description Our study shows several morphodynamic changes occurred along a coastal sector downstream of a groin built at Camet Norte locality (Buenos Aires province) by the end of 2011. During the time span analyzed (July 2011-December 2015), at a control site located 200 m north of the structure, downstream relative to the littoral drift, it was possible to observe that the sand level on the beach was seldom higher than that recorded in July 2011, four months before the groin was built. The opposite occurred in other three control sites placed more than 1,275 m far from the new groin, where the sand level was seldom lower than that observed in July 2011. In addition, along the whole year, the size of the sandy particles of the foreshore in the area localized near the structure was generally higher than that of the remaining control sites, suggesting stronger wave energy within the corresponding coastal sector. Most probably, within control site localized next to groin coastal sector a lower sandy level together with stronger wave energy allowed a direct influx and effect of the waves during the whole time span. This is reflected by a stronger retreat of the main cliff and especially the microcliff, with a total of 96 and 350 cm (22 and 79 cm/year), respectively. These retreats are linked mainly to short marine events locally known as “sudestadas”. © 2016, Asociacion Geologica Argentina. All rights reserved.
format JOUR
author Medina, R.A.
Martínez, A.L.
Mormeneo, L.
Richiano, S.M.
author_facet Medina, R.A.
Martínez, A.L.
Mormeneo, L.
Richiano, S.M.
author_sort Medina, R.A.
title Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina
title_short Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina
title_full Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina
title_fullStr Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina
title_full_unstemmed Morphosedimentary changes caused by the construction of a groin in Camet Norte, Buenos Aires Province, Argentina
title_sort morphosedimentary changes caused by the construction of a groin in camet norte, buenos aires province, argentina
url http://hdl.handle.net/20.500.12110/paper_00044822_v73_n2_p270_Medina
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