Articles | Volume 21, issue 2
https://doi.org/10.5194/os-21-749-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-21-749-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Operational hydrodynamic service as a tool for coastal flood assessment
Xavier Sánchez-Artús
CORRESPONDING AUTHOR
Universitat Politècnica de Catalunya – BarcelonaTech (UPC), Laboratori d'Enginyeria Marítima (LIM), C/Jordi Girona, 31, 08034, Barcelona, Spain
Vicente Gracia
Universitat Politècnica de Catalunya – BarcelonaTech (UPC), Laboratori d'Enginyeria Marítima (LIM), C/Jordi Girona, 31, 08034, Barcelona, Spain
Manuel Espino
Universitat Politècnica de Catalunya – BarcelonaTech (UPC), Laboratori d'Enginyeria Marítima (LIM), C/Jordi Girona, 31, 08034, Barcelona, Spain
Manel Grifoll
Universitat Politècnica de Catalunya – BarcelonaTech (UPC), Laboratori d'Enginyeria Marítima (LIM), C/Jordi Girona, 31, 08034, Barcelona, Spain
Gonzalo Simarro
Institute of Marine Sciences (CSIC), Passeig Marítim de la Barceloneta 37–49, Barcelona, Spain
Jorge Guillén
Institute of Marine Sciences (CSIC), Passeig Marítim de la Barceloneta 37–49, Barcelona, Spain
Marta González
Institut Cartogràfic i Geològic de Catalunya (ICGC), Barcelona, Spain
Agustín Sanchez-Arcilla
Universitat Politècnica de Catalunya – BarcelonaTech (UPC), Laboratori d'Enginyeria Marítima (LIM), C/Jordi Girona, 31, 08034, Barcelona, Spain
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Silvia de Juan, Ryan Smazal, Claudio Lo Iacono, Maria del Mar Gil, Andrea Cabrito, Andres Ospina-Alvarez, Jorge Guillén, Grace M. Cott, Laia Illa-López, Hilmar Hinz, and Francesc Maynou
EGUsphere, https://doi.org/10.5194/egusphere-2026-1394, https://doi.org/10.5194/egusphere-2026-1394, 2026
This preprint is open for discussion and under review for Biogeosciences (BG).
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Rhodolith beds are seabed habitats formed by free-living coralline algae, but their role in storing carbon is poorly known. We studied a sediment deposit beneath a rhodolith bed in the Menorca Channel using seabed mapping, sediment cores, and radiocarbon dating. We found that the deposit has been accumulating since the early Holocene, and stores organic carbon in its sediments at least since 6,000 years ago.
Jiangyue Jin, Manuel Espino, Daniel Fernàndez-Garcia, and Albert Folch
Ocean Sci., 21, 1407–1424, https://doi.org/10.5194/os-21-1407-2025, https://doi.org/10.5194/os-21-1407-2025, 2025
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Coastal zones are crucial ecological areas, yet our understanding of groundwater–ocean interactions remains limited. Ocean and groundwater models typically operate independently, with ocean models ignoring submarine groundwater discharge and groundwater models viewing the ocean as a static boundary. This separation impedes accurate simulations. By integrating these models, we can capture real-time water flow and salt movement while considering factors such as tides.
Nil Carrion-Bertran, Albert Falqués, Francesca Ribas, Daniel Calvete, Rinse de Swart, Ruth Durán, Candela Marco-Peretó, Marta Marcos, Angel Amores, Tim Toomey, Àngels Fernández-Mora, and Jorge Guillén
Earth Surf. Dynam., 12, 819–839, https://doi.org/10.5194/esurf-12-819-2024, https://doi.org/10.5194/esurf-12-819-2024, 2024
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The sensitivity to the wave and sea-level forcing sources in predicting a 6-month embayed beach evolution is assessed using two different morphodynamic models. After a successful model calibration using in situ data, other sources are applied. The wave source choice is critical: hindcast data provide wrong results due to an angle bias, whilst the correct dynamics are recovered with the wave conditions from an offshore buoy. The use of different sea-level sources gives no significant differences.
Ivan Hernandez, Leidy M. Castro-Rosero, Manuel Espino, and Jose M. Alsina Torrent
Geosci. Model Dev., 17, 2221–2245, https://doi.org/10.5194/gmd-17-2221-2024, https://doi.org/10.5194/gmd-17-2221-2024, 2024
Short summary
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The LOCATE numerical model was developed to conduct Lagrangian simulations of the transport and dispersion of marine debris at coastal scales. High-resolution hydrodynamic data and a beaching module that used particle distance to the shore for land–water boundary detection were used on a realistic debris discharge scenario comparing hydrodynamic data at various resolutions. Coastal processes and complex geometric structures were resolved when using nested grids and distance-to-shore beaching.
Marta F.-Pedrera Balsells, Manel Grifoll, Margarita Fernández-Tejedor, Manuel Espino, Marc Mestres, and Agustín Sánchez-Arcilla
Biogeosciences Discuss., https://doi.org/10.5194/bg-2021-322, https://doi.org/10.5194/bg-2021-322, 2021
Revised manuscript not accepted
Short summary
Short summary
Phytoplankton in coastal bays is influenced by physical variables (wind or freshwater inputs) that can influence the composition of phytoplankton. A numerical model has been applied to understand this variability. The simulations show that during weak wind events there is physical separation between surface and deep layers, penalising phytoplankton growth. During intense wind, mixing of the water column occurs, increasing the phytoplankton biomass in the lower layers.
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Short summary
The study presents an operational service that forecasts flood impacts during extreme conditions at three beaches in Barcelona, Spain. The architecture is designed for efficient use on standard desktop computers, using data from the Copernicus Marine Environment Monitoring Service, task automation tools, Python scripts, and the XBeach model to deliver timely results. Extensive validation, including field campaigns and video analysis, ensures accuracy and reliability.
The study presents an operational service that forecasts flood impacts during extreme conditions...