Monitoring coastal storms’ effects on the Trabucador barrier beach (Ebro Delta) through Sentinel-2 derived shorelines
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Cita com:
hdl:2117/387180
Tipus de documentText en actes de congrés
Data publicació2022
Condicions d'accésAccés obert
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Abstract
The vulnerable Trabucador barrier beach has recently suffered significant storm-induced geomorphological changes. This study presents the monitoring of its shoreline during storm events for assessing their effects on beach dynamics. After fine-tuning the CoastSat tool (i.e. optimal NDWI threshold) for shoreline extraction from Sentinel-2 imagery (S2), results were validated with GNSS-RTK reference shorelines (RMSE = 6.8 m). Shorelines were extracted from Dec-2019 to Feb-2021, encompassing 11 storms (Hs > 2m; duration = 24h), including Gloria (Jan-2020). Results showed that S2 imagery provides enough temporal and spatial resolution to capture the storm effects on the site. The
shoreline timeseries gave relevant information about the geomorphological processes occurring during storm events (barrier breaching, erosion, washover), allowing the assessment of their cumulative effects.
These results might be important for coastal management, in a site suffering from chronic flooding.
CitacióAngelats, E. [et al.]. Monitoring coastal storms' effects on the Trabucador barrier beach (Ebro Delta) through Sentinel-2 derived shorelines. A: Jornadas de Geomorfología Litoral. "XI Jornadas de Geomorfología Litoral: Galicia 2022: Santiago de Compostela, 27-29 de julio de 2022: actas". 2022, p. 1-4. DOI 10.15304/9788419155832.
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Angelats_Eduard_Geolit_2022.pdf | Extended Abstract Congreso Geomorfología Litoral | 547,8Kb | Visualitza/Obre |