Costa da Caparica Artificial Sand Nourishment and Coastal Dynamics

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

F. Veloso Gomes (Autor) FEUP; J. Costa (Autor) Outra; A. Rodrigues (Autor) Outra; F. Taveira-Pinto (Autor) FEUP; J. Pais Barbosa (Autor) Outra; Luciana das Neves (Autor) FEUP

Revista

Título: Journal of Coastal Research

Nº SI 39

Páginas: 678-682

ISSN: 0749-0208

Editora: Coastal Education & Research Foundation, Inc.

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 13 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia hidraúlica

Outras Informações

ID Authenticus: P-003-QWM

Abstract (EN): Since 1870 important physiographic transformations have occurred on Costa da Caparica. Evidence of such transformations is, for instance, coastline retreat - the noticeable sand spit retreat of about 3 km - which caused an irreversible loss of beach width and dunes. To minimize losses and stabilize the coastline some groins and a seawall were constructed. As a result. the coastline has remained more or less stable for almost 30 years (1972-2000), although with a continuous loss of sand. From 2000 on erosion events increased, especially at S. Joao beach, with massive sediment removal from the beach and dunes. Several alternative options to minimize coastline retreat and infrastructure destruction were considered, front which emerged one that basically consisted of reshaping the existent groins and seawall with a 3 million m(3) sand nourishment. In parallel, a monitoring program was to be implemented. To date, the reshaping works are complete and a total of 1.5 million m(3) has been introduced into the systems in two nourishments (0.5 million m(3) and 1 million m(3), accordingly). From the beginning, a comprehensive monitoring program comprised of several hydrographical and topographical surveys has been implemented. This paper presents a discussion on selected interventions and the construction phases, as well as survey results on the sediment budget. Complementary solutions to sustain the nourished sand on the beach are being considered and are presented in-brief.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5