Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina
- Autores
- Guisado Pintado, Emilia; Isla, Manuel Fermín
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Sandy coastal systems are very dynamic systems in which morphological changes occur overdifferent time scales that ranges from hours to decades. However, it has been widely reported thatmajor storms are the main responsible of the most significant changes in short to medium timescales. Major storms have been defined using a variety of environmental variables, but they arenormally associated with high values of four main parameters: 1) Wave heights (Hs); 2) Duration(Du); or 3) Frequency (Fq); 4) Orientation (Or).In this study we aim to characterise types of major storms and to categorize morphologicalimpacts over a hybrid coastal system. The study site, known as Punta Rasa, is located in theSamborombón bay in the outer part of the Río de La Plata estuary (Argentina) and corresponds toa zone of interaction between a large sandy spit and a backwash tidal flat system. Methods usedcombine statistical analysis of wave climate time-series, analysis of wave energy patterns throughnearshore numerical modelling (SWAN) and comparison of pre- and post-storm morphologicalchanges using satellite images derived indexes (e.g. NDWI).Results allowed to characterise four types of major storms impacting the study area: High-EnergyStorms (HES), defined by an average storm Hs below the 1% exceedance (> 2.6 m), Long-LivedStorms (LLS) represented by an exceedance of the 1% of Du (> 60 hours), Storm Groups (SG) inwhich storm frequency is less than 6 days and Northeastern moderate storms (NMS) defined bytheir eastern, onshore oriented direction. Under HES and NSM storms erosional areas aredominant over depositional (62.34%), which most of the system showing shoreline retreat and agrowth of the end spit area. For LLS and SG storms the morphological impact varies alongshorewith a general flattens of the end spit (showing a ‘rounded-shape’ morphology) and erosionalhotspots over the southeastern coastal section.
Fil: Guisado Pintado, Emilia. Facultad de Geografia E Historia ; Universidad de Sevilla;
Fil: Isla, Manuel Fermín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
EGU General Assembly 2023
Vienna
Austria
European Geosciences Union - Materia
-
MAJOR STORMS
SPITS
GEOMORPHOLOGY
PUNTA RASA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/228879
Ver los metadatos del registro completo
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Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in ArgentinaGuisado Pintado, EmiliaIsla, Manuel FermínMAJOR STORMSSPITSGEOMORPHOLOGYPUNTA RASAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Sandy coastal systems are very dynamic systems in which morphological changes occur overdifferent time scales that ranges from hours to decades. However, it has been widely reported thatmajor storms are the main responsible of the most significant changes in short to medium timescales. Major storms have been defined using a variety of environmental variables, but they arenormally associated with high values of four main parameters: 1) Wave heights (Hs); 2) Duration(Du); or 3) Frequency (Fq); 4) Orientation (Or).In this study we aim to characterise types of major storms and to categorize morphologicalimpacts over a hybrid coastal system. The study site, known as Punta Rasa, is located in theSamborombón bay in the outer part of the Río de La Plata estuary (Argentina) and corresponds toa zone of interaction between a large sandy spit and a backwash tidal flat system. Methods usedcombine statistical analysis of wave climate time-series, analysis of wave energy patterns throughnearshore numerical modelling (SWAN) and comparison of pre- and post-storm morphologicalchanges using satellite images derived indexes (e.g. NDWI).Results allowed to characterise four types of major storms impacting the study area: High-EnergyStorms (HES), defined by an average storm Hs below the 1% exceedance (> 2.6 m), Long-LivedStorms (LLS) represented by an exceedance of the 1% of Du (> 60 hours), Storm Groups (SG) inwhich storm frequency is less than 6 days and Northeastern moderate storms (NMS) defined bytheir eastern, onshore oriented direction. Under HES and NSM storms erosional areas aredominant over depositional (62.34%), which most of the system showing shoreline retreat and agrowth of the end spit area. For LLS and SG storms the morphological impact varies alongshorewith a general flattens of the end spit (showing a ‘rounded-shape’ morphology) and erosionalhotspots over the southeastern coastal section.Fil: Guisado Pintado, Emilia. Facultad de Geografia E Historia ; Universidad de Sevilla;Fil: Isla, Manuel Fermín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaEGU General Assembly 2023ViennaAustriaEuropean Geosciences UnionCopernicus Publications2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228879Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina; EGU General Assembly 2023; Vienna; Austria; 2023; 1-1CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-15658info:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU23/EGU23-15658.htmlInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:19:44Zoai:ri.conicet.gov.ar:11336/228879instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:19:45.149CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
title |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
spellingShingle |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina Guisado Pintado, Emilia MAJOR STORMS SPITS GEOMORPHOLOGY PUNTA RASA |
title_short |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
title_full |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
title_fullStr |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
title_full_unstemmed |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
title_sort |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina |
dc.creator.none.fl_str_mv |
Guisado Pintado, Emilia Isla, Manuel Fermín |
author |
Guisado Pintado, Emilia |
author_facet |
Guisado Pintado, Emilia Isla, Manuel Fermín |
author_role |
author |
author2 |
Isla, Manuel Fermín |
author2_role |
author |
dc.subject.none.fl_str_mv |
MAJOR STORMS SPITS GEOMORPHOLOGY PUNTA RASA |
topic |
MAJOR STORMS SPITS GEOMORPHOLOGY PUNTA RASA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Sandy coastal systems are very dynamic systems in which morphological changes occur overdifferent time scales that ranges from hours to decades. However, it has been widely reported thatmajor storms are the main responsible of the most significant changes in short to medium timescales. Major storms have been defined using a variety of environmental variables, but they arenormally associated with high values of four main parameters: 1) Wave heights (Hs); 2) Duration(Du); or 3) Frequency (Fq); 4) Orientation (Or).In this study we aim to characterise types of major storms and to categorize morphologicalimpacts over a hybrid coastal system. The study site, known as Punta Rasa, is located in theSamborombón bay in the outer part of the Río de La Plata estuary (Argentina) and corresponds toa zone of interaction between a large sandy spit and a backwash tidal flat system. Methods usedcombine statistical analysis of wave climate time-series, analysis of wave energy patterns throughnearshore numerical modelling (SWAN) and comparison of pre- and post-storm morphologicalchanges using satellite images derived indexes (e.g. NDWI).Results allowed to characterise four types of major storms impacting the study area: High-EnergyStorms (HES), defined by an average storm Hs below the 1% exceedance (> 2.6 m), Long-LivedStorms (LLS) represented by an exceedance of the 1% of Du (> 60 hours), Storm Groups (SG) inwhich storm frequency is less than 6 days and Northeastern moderate storms (NMS) defined bytheir eastern, onshore oriented direction. Under HES and NSM storms erosional areas aredominant over depositional (62.34%), which most of the system showing shoreline retreat and agrowth of the end spit area. For LLS and SG storms the morphological impact varies alongshorewith a general flattens of the end spit (showing a ‘rounded-shape’ morphology) and erosionalhotspots over the southeastern coastal section. Fil: Guisado Pintado, Emilia. Facultad de Geografia E Historia ; Universidad de Sevilla; Fil: Isla, Manuel Fermín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina EGU General Assembly 2023 Vienna Austria European Geosciences Union |
description |
Sandy coastal systems are very dynamic systems in which morphological changes occur overdifferent time scales that ranges from hours to decades. However, it has been widely reported thatmajor storms are the main responsible of the most significant changes in short to medium timescales. Major storms have been defined using a variety of environmental variables, but they arenormally associated with high values of four main parameters: 1) Wave heights (Hs); 2) Duration(Du); or 3) Frequency (Fq); 4) Orientation (Or).In this study we aim to characterise types of major storms and to categorize morphologicalimpacts over a hybrid coastal system. The study site, known as Punta Rasa, is located in theSamborombón bay in the outer part of the Río de La Plata estuary (Argentina) and corresponds toa zone of interaction between a large sandy spit and a backwash tidal flat system. Methods usedcombine statistical analysis of wave climate time-series, analysis of wave energy patterns throughnearshore numerical modelling (SWAN) and comparison of pre- and post-storm morphologicalchanges using satellite images derived indexes (e.g. NDWI).Results allowed to characterise four types of major storms impacting the study area: High-EnergyStorms (HES), defined by an average storm Hs below the 1% exceedance (> 2.6 m), Long-LivedStorms (LLS) represented by an exceedance of the 1% of Du (> 60 hours), Storm Groups (SG) inwhich storm frequency is less than 6 days and Northeastern moderate storms (NMS) defined bytheir eastern, onshore oriented direction. Under HES and NSM storms erosional areas aredominant over depositional (62.34%), which most of the system showing shoreline retreat and agrowth of the end spit area. For LLS and SG storms the morphological impact varies alongshorewith a general flattens of the end spit (showing a ‘rounded-shape’ morphology) and erosionalhotspots over the southeastern coastal section. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Congreso Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/228879 Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina; EGU General Assembly 2023; Vienna; Austria; 2023; 1-1 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/228879 |
identifier_str_mv |
Major storms influence on the morphological evolution of a hybrid spit-tidal flat system in Argentina; EGU General Assembly 2023; Vienna; Austria; 2023; 1-1 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-15658 info:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU23/EGU23-15658.html |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.coverage.none.fl_str_mv |
Internacional |
dc.publisher.none.fl_str_mv |
Copernicus Publications |
publisher.none.fl_str_mv |
Copernicus Publications |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614171947171840 |
score |
13.070432 |