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

Gómez‐Pazo, Alejandro; Pérez‐Alberti, Augusto; Pérez, Xosé Lois Otero

doi:10.3390/jmse7050125

Cited by 15 publications

(6 citation statements)

References 45 publications

(57 reference statements)

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“…During that winter, extreme storms caused substantial damages to coastal infrastructures, beaches, mariculture and fishery activities along the western Atlantic coast of Europe (Castelle et al., 2018; Garrote et al., 2018; Masselink et al., 2016). In the NW‐Iberian coast, restoration of major sediment loss from beaches (Gomez‐Pazo, Pérez‐Alberti, and Otero Pérez, 2019; Gomez‐Pazo, Pérez‐Alberti, and Trenhaile, 2019) accounted for an expenditure of ∼12 × 10 6 USD (Pedraja et al., 2017). These findings highlight the potential to use climate indices to predict future impacts on hydrodynamics and its possible effects on the ecosystem services, or to identify and analyze past occurrences.…”

Section: Discussionmentioning

confidence: 99%

Wave Regime and Wave‐Current Coupling in an Upwelling–Driven Bay: Seasonal and Inter‐Annual Variability

et al. 2021

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Data from an acoustic Doppler current profiler (ADCP), a wave‐gauge, a met‐ocean buoy and model results provide new insights into the wave regime in a partially sheltered upwelling‐driven bay, the Ría de Vigo (NW Iberia), and the adjacent continental shelf from June 2013 to August 2014. Swell on the NW‐Iberian shelf comes mainly from NW directions, while wind sea comes from the NW under upwelling conditions, and from the SW under downwelling conditions. As the ria is protected from the NW and exposed to the SW, swell is almost always attenuated when entering the bay, and wave height inside the ria depends mostly on shelf wind sea variability. During the upwelling season, swell and wind sea barely enter the ria and wave heights inside the ria are small (0.21 m). During the downwelling season, shelf wind sea directly enters the ria, contributing more to the total wave height which achieves its maximum values (0.46 m). There is a cumulative action of wave and currents (wave current coupling, WCC) that is stronger during the downwelling season. The WCC entails an increase in the seabed energy which could reinforce bottom remineralization. The inter‐annual variability (2009–2016) of winter wave height and WCC in the ria is associated with the combined role played by the North Atlantic Oscillation (NAO) and West Europe Pressure Anomaly (WEPA) indices. The highest waves and strongest WCC occur during the coincidence of negative NAO and positive WEPA phases and can have potentially relevant repercussions on the ecosystem services of the ria.

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Section: Discussionmentioning

confidence: 99%

Wave Regime and Wave‐Current Coupling in an Upwelling–Driven Bay: Seasonal and Inter‐Annual Variability

et al. 2021

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“…The first, as already mentioned, is related to an improvement in spatial resolution. In addition, the relatively low cost of these devices allows for faster image acquisition and for a more comprehensive temporal coverage in comparison with other technologies such as satellite or aerial images [68][69][70]. This improvement currently enables detailed analyses of the influence of marine and continental factors on the evolution of rocky areas, thanks to the possibility of surveying study areas between storms or after extreme rainfall events [71,72].…”

Section: Improvements In Research With the Use Of Uavsmentioning

confidence: 99%

The Use of UAVs for the Characterization and Analysis of Rocky Coasts

Gómez‐Pazo

Pérez‐Alberti

2021

Drones

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Rocky coasts represent three quarters of all coastlines worldwide. These areas are part of ecosystems of great ecological value, but their steep configuration and their elevation make field surveys difficult. This fact, together with their lower variation rates, explains the lower numbers of publications about cliffs and rocky coasts in general compared with those about beach-dune systems. The introduction of UAVs in research, has enormously expanded the possibilities for the study of rocky coasts. Their relative low costs allow for the generation of information with a high level of detail. This information, combined with GIS tools, enables coastal analysis based on Digital Models and high spatial resolution images. This investigation summarizes the main results obtained with the help of UAVs between 2012 and the present day in rocky coastline sections in the northwest of the Iberian Peninsula. These investigations have particularly focused on monitoring the dynamics of boulder beaches, cliffs, and shore platforms, as well as the structure and function of ecosystems. This work demonstrates the importance of unmanned aerial vehicles (UAVs) for coastal studies and their usefulness for improving coastal management. The Galician case was used to explain their importance and the advances in the UAVs’ techniques.

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“…Erosion causes shoreline changes at different rates within a timeframe, and its origin can be a response to changes in the infrastructure and climate of coastal areas (e.g., Ahmad & Lakhan, 2012;Ataol, Kale, & Tekkanat, 2019;Fotsi, Pouvreau, Brenon, Onguene, & Etame, 2019;Gómez-Pazo, Pérez-Alberti, & Pérez, 2019;Jonah et al, 2016;Kermani, Boutiba, Guendouz, Guettouche, & Khelfani, 2016;Lee, Eom, Do, Kim, & Ryu, 2019). When encountering conditions of vulnerability, coastal erosion is a hazard that represents a source of coastal risk, whose spatial and temporal manifestations have repercussions on other kinds of risk, such as flooding risk (Pollard, Spencer, & Brooks, 2019).…”

Section: Introductionmentioning

confidence: 99%

Shoreline analysis and erosion risk assessment of a coastal strip subjected to high anthropogenic pressure

Zambrano-Medina

Franco-Ochoa²,

Plata-Rocha³

et al. 2022

Tecnol. cienc. agua

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This study aims to understand the role of key drivers of historical changes in the shoreline and its implications with the erosion risk in the northern coastal strip of the state of Sinaloa, located on the east coast of the Gulf of California. Digital maps from different years (1981, 1991, 2004, and 2018) are analyzed using geographic information system software (DSAS and CERA) to examine: (a) the movement and rate of the shoreline change; and (b) the potential vulnerability consequences, and erosion risk. The obtained results indicate that between 1981 and 2018: (a) anthropogenic actions (dams and breakwaters) were the main drivers of both the shoreline changes and the environmental damage underlying the erosion risk that has occurred in recent decades; (b) the coastline of the study area has been eroding with an average EPR of -3.1 m per year, which has led to an average NSM of -112.9 m; and (c) the risk of erosion remained moderate, although the vulnerability increased from a moderate to a high level and potential consequences from a very low to a moderate level. Besides, the results of this study provide a basis for future analyses focused on predicting shoreline changes and coastal risk.

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

Cited by 15 publications

References 45 publications

Wave Regime and Wave‐Current Coupling in an Upwelling–Driven Bay: Seasonal and Inter‐Annual Variability

Wave Regime and Wave‐Current Coupling in an Upwelling–Driven Bay: Seasonal and Inter‐Annual Variability

The Use of UAVs for the Characterization and Analysis of Rocky Coasts

Shoreline analysis and erosion risk assessment of a coastal strip subjected to high anthropogenic pressure

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