Next Article in Journal
Assessing Natural and Mechanical Dune Performance in a Post-Hurricane Environment
Next Article in Special Issue
Geomorphological Processes and Environmental Interpretation at Espalmador islet (Western Mediterranean)
Previous Article in Journal
Spatial Variability of Coastal Foredune Evolution, Part A: Timescales of Months to Years
Previous Article in Special Issue
Hard-Rock Coastal Modelling: Past Practice and Future Prospects in a Changing World
Open AccessArticle

Recent Evolution (1956–2017) of Rodas Beach on the Cíes Islands, Galicia, NW Spain

1
Departamento de Xeografía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
2
Laboratorio de Tecnoloxía Ambiental, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
3
Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(5), 125; https://doi.org/10.3390/jmse7050125
Received: 28 March 2019 / Revised: 27 April 2019 / Accepted: 28 April 2019 / Published: 30 April 2019
(This article belongs to the Special Issue Coastal Morphodynamics II)
Sedimentary coastal areas change rapidly and are economically and environmentally important. This research focuses on determining the extent to which natural dynamics and human activity have contributed to visible changes on Rodas, Cíes Islands in southwestern Galicia (NW Spain). The number of visitors to the islands has increased in recent years, and the port infrastructure has therefore been expanded. Previously, this zone experimented with important sand extraction phases. These changes have influenced the ecosystem directly by modifying the sedimentary behavior and indirectly by promoting even greater numbers of visitors to the area. Aerial images and orthophotographs of the study zone were examined to identify changes that have taken place over the last sixty-one years (1956–2017). Changes in the position of the shoreline, defined as the boundary of the dune vegetation, were mapped at different times between 1956 and 2017. Changes in the shoreline were quantified using GIS (Geographic Information System) technology and Digital Shoreline Analysis System (DSAS) software. The findings revealed that the system regressed by more than 30 m between 1956 and 1981, in part as a result of sand extraction. We also identified different erosion/accretion phases that occurred before the reformation of the Rodas dock in 2010. The system is currently undergoing important changes, especially in the northern area, with a regression of 14.14 m in the last seven years. In this context, LiDAR analysis from 2010 and 2015 using Geomorphic Change Detection (GCD) tools allowed variations in the dune system to be verified. The elevation in the study zone increased in 83% of the area, mainly in the frontal dune and close to the winter inlet (north sector). However, the variations were very small. View Full-Text
Keywords: coastal erosion; DSAS; GCD; aerial photographs; marine protected area; Galicia coastal erosion; DSAS; GCD; aerial photographs; marine protected area; Galicia
Show Figures

Graphical abstract

MDPI and ACS Style

Gómez-Pazo, A.; Pérez-Alberti, A.; Otero Pérez, X.L. Recent Evolution (1956–2017) of Rodas Beach on the Cíes Islands, Galicia, NW Spain. J. Mar. Sci. Eng. 2019, 7, 125.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop