Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model

Adjustment models for both Algarrobo and Concón bays, central Chile, are presented herein; the results show a nearly logarithmic spiral shape for the shore. Spatial-temporal variations in the shorelines of both bays were found based on aerial photographs from different years. The results indicate im...

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Autor principal:	Martinez,Carolina
Lenguaje:	English
Publicado:	Escuela de Ciencias del Mar. Pontificia Universidad Católica de Valparaíso 2007
Materias:	headland bay embayment shoreline
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71782007000200010
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spelling	oai:scielo:S0717-717820070002000102008-01-31Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment modelMartinez,Carolina headland bay embayment shoreline Adjustment models for both Algarrobo and Concón bays, central Chile, are presented herein; the results show a nearly logarithmic spiral shape for the shore. Spatial-temporal variations in the shorelines of both bays were found based on aerial photographs from different years. The results indicate important variations in the relative position of the Concón Bay shoreline between 1945 and 2006, with extreme oscillations (-368 to 123.8 m) only occurring in the proximal zone, where the Aconcagua Estuary is located. On the other hand, the spatial-temporal variations in the Algarrobo Bay shoreline between 1967 and 2006 are moderate (131 in the proximal and -73 in the distal zone). Whereas Concón Bay exhibits a stable state of equilibrium for the past 60 years, if the estuary zone is excluded, Algarrobo Bay presents a stable state with a tendency for growth in the proximal zone and retreat in the distal zone. The results are discussed in terms of coastal changes associated with highly urbanized shorelines and applications for coastal area management that are derived from the modelsinfo:eu-repo/semantics/openAccessEscuela de Ciencias del Mar. Pontificia Universidad Católica de ValparaísoInvestigaciones marinas v.35 n.2 20072007-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71782007000200010en10.4067/S0717-71782007000200010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	headland bay embayment shoreline
spellingShingle	headland bay embayment shoreline Martinez,Carolina Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model
description	Adjustment models for both Algarrobo and Concón bays, central Chile, are presented herein; the results show a nearly logarithmic spiral shape for the shore. Spatial-temporal variations in the shorelines of both bays were found based on aerial photographs from different years. The results indicate important variations in the relative position of the Concón Bay shoreline between 1945 and 2006, with extreme oscillations (-368 to 123.8 m) only occurring in the proximal zone, where the Aconcagua Estuary is located. On the other hand, the spatial-temporal variations in the Algarrobo Bay shoreline between 1967 and 2006 are moderate (131 in the proximal and -73 in the distal zone). Whereas Concón Bay exhibits a stable state of equilibrium for the past 60 years, if the estuary zone is excluded, Algarrobo Bay presents a stable state with a tendency for growth in the proximal zone and retreat in the distal zone. The results are discussed in terms of coastal changes associated with highly urbanized shorelines and applications for coastal area management that are derived from the models
author	Martinez,Carolina
author_facet	Martinez,Carolina
author_sort	Martinez,Carolina
title	Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model
title_short	Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model
title_full	Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model
title_fullStr	Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model
title_full_unstemmed	Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model
title_sort	shoreline changes in concón and algarrobo bays, central chile, using an adjustment model
publisher	Escuela de Ciencias del Mar. Pontificia Universidad Católica de Valparaíso
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71782007000200010
work_keys_str_mv	AT martinezcarolina shorelinechangesinconconandalgarrobobayscentralchileusinganadjustmentmodel
_version_	1718442958331576320

Shoreline changes in Concón and Algarrobo bays, central Chile, using an adjustment model

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