Abstract
The coastal villages with the greatest touristic affluence of the province of Buenos Aires, Argentina, are located on the Eastern Sand Barrier. The characteristics of the beaches of Villa Gesell, one of the most visited districts, have been studied before but there is no recent data available. The present work represents an update of the state of the beaches of this district, comparing data collected between 1994 and 2004 with sporadic measurements taken up to 2010. In 2021, two new seasonal surveys were carried out with the completion of four beach profiles distributed throughout the district and covering urban and peri-urban areas. It was observed that beaches in urban areas, where coastal dunes have been deteriorated or eliminated as a result of urban development and some anthropic practices, presented smaller beach widths and lower slopes. Beaches in peri-urban areas, with less building occupation on the waterfront, had greater beach widths and slopes, as well as larger volumes and sediment balances. Seasonal winter/summer cycles, episodic storm cycles and anthropogenic action have been identified as modifying processes of these beaches. Coastal urbanization and practices linked to sun and sea tourism affect coastal dynamics. Thus, sustained monitoring over time is a necessary tool to evaluate possible changes and preserve the beaches that represent a fundamental tourist resource for these localities.
Highlights
The coastal villages with the greatest touristic affluence of the province of Buenos Aires, Argentina, are located on the Eastern Sand Barrier
Se obtuvieron las diferencias volumétricas entre perfiles de diferentes relevamientos considerando la longitud del perfil menor, según métodos convencionales (Bértola, 2006)
En XII Congreso Geológico Argentino y II Congreso de Exploración de Hidrocarburos, p. 252-259
Summary
Las tareas de campo consistieron en la ejecución de relevamientos topográficos a partir de perfiles de playa en cuatro puntos del partido de Villa Gesell (Figura 2; Tabla 1). Los datos fueron relevados entre los años 1994 y 2021. De 1994 a 1999 los perfiles fueron realizados con frecuencia cuatrimestral, mientras que entre 2000 y 2010 de forma anual o bianual. Se realizaron dos campañas en marzo y julio de 2021. Detalle y ubicación de los cuatro perfiles de playa relevados.
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