Artículo
Tidal connectivity modelling in wetlands associated with coastal lagoon of Punta Rasa natural reserve, Argentina
López, Luciano
; Oreiro, Fernando Ariel; Dragani, Walter Cesar
; Galliari, Maria Julieta
; Cellone, Francisco Aldo
; Carol, Eleonora Silvina
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Fecha de publicación:
10/2024
Editorial:
Academic Press Ltd - Elsevier Science Ltd
Revista:
Estuarine, Coastal and Shelf Science
ISSN:
0272-7714
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Tidal flows play a crucial role in connecting coastal lagoons to the sea through channels, in this way determining the hydrological dynamics of these environments. The Punta Rasa Natural Reserve (Ramsar site) is located in a transitional zone between the outer limit of the estuary of the Río de la Plata and the open sea. In this work, we study the northernmost lagoon at the end of the spit, which is connected to the sea by a narrow tidal channel.Wetlands are developing at the edges of the lagoon and in lower lying sectors. The aim of this study is to develop a conceptual model that explains the tidal connectivity of the coastal lagoon and to assess how it affects the marsh environments. Detailed topographic surveys were performed using Structure from Motion Multi-View Stereo from a UAV, while sea level data was analyzed using recordings at 20-min intervals over a five-year period. This dataset facilitated an analysis of the frequency of exceedances for threshold values of 0.8, 1.0, 1.2 and 1.4 m. The frequency analysis reveals that the highest exceedances of these thresholds occur during the summer months. When the water level reaches 1 m, the lagoon is fully connected to the sea via the tidal channel, resulting in complete inundation of the low marshland and the margins of the high marshland. At a tidal level of 1.4 m, the high marsh connected to the tidal channel and the coastal lagoon experience flooding. The results obtained in this study provides insights into modelling hydrological connectivity between marshes and the sea, as well as determining the frequency of tidal inundation in each wetland.
Palabras clave:
MARSHES
,
COASTAL ENVIRONMENTS
,
TIDAL FLOWS
,
RAMSAR SITE
Archivos asociados
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Identificadores
Colecciones
Articulos (CIM)
Articulos de CENTRO DE INVESTIGACIONES DEL MEDIO AMBIENTE
Articulos de CENTRO DE INVESTIGACIONES DEL MEDIO AMBIENTE
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(CIG)
Articulos de CENTRO DE INVEST.GEOLOGICAS (I)
Articulos de CENTRO DE INVEST.GEOLOGICAS (I)
Citación
López, Luciano; Oreiro, Fernando Ariel; Dragani, Walter Cesar; Galliari, Maria Julieta; Cellone, Francisco Aldo; et al.; Tidal connectivity modelling in wetlands associated with coastal lagoon of Punta Rasa natural reserve, Argentina; Academic Press Ltd - Elsevier Science Ltd; Estuarine, Coastal and Shelf Science; 306; 108898; 10-2024; 1-9
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