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.
Research article
| 
09 Apr 2025
Research article |
| 09 Apr 2025
| 09 Apr 2025
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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Jiangyue Jin, Manuel Espino, Daniel Fernández, and Albert Folch
EGUsphere, https://doi.org/10.5194/egusphere-2024-3384, https://doi.org/10.5194/egusphere-2024-3384, 2024
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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
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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
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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.
Verónica Morales-Márquez, Alejandro Orfila, Gonzalo Simarro, and Marta Marcos
Ocean Sci., 16, 1385–1398, https://doi.org/10.5194/os-16-1385-2020, https://doi.org/10.5194/os-16-1385-2020, 2020
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This is a study of long-term changes in extreme waves and in the synoptic patterns related to them on European coasts. The interannual variability of extreme waves in the North Atlantic Ocean is controlled by the atmospheric patterns of the North Atlantic Oscillation and Scandinavian indices. In the Mediterranean Sea, it is governed by the East Atlantic and East Atlantic/Western Russia modes acting strongly during their negative phases.
Manel Grifoll, Pablo Cerralbo, Jorge Guillén, Manuel Espino, Lars Boye Hansen, and Agustín Sánchez-Arcilla
Ocean Sci., 15, 307–319, https://doi.org/10.5194/os-15-307-2019, https://doi.org/10.5194/os-15-307-2019, 2019
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In this paper we investigate the origin of the variability in
near-bottom turbidity observations in Alfacs Bay (in the northwestern Mediterranean Sea). The observations of turbidity peaks are consistent with the seiche phenomenon. We suggest that the sequence of resuspension events plays an important role in the suspended sediment concentration, meaning that previous sediment resuspension events may influence the increase in suspended sediment in subsequent events.
Pablo Cerralbo, Marta F.-Pedrera Balsells, Marc Mestres, Margarita Fernandez, Manuel Espino, Manel Grifoll, and Agustin Sanchez-Arcilla
Ocean Sci., 15, 215–226, https://doi.org/10.5194/os-15-215-2019, https://doi.org/10.5194/os-15-215-2019, 2019
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In this contribution we investigate the hydrodynamic response in Alfacs Bay (Delta Ebro, NW Mediterranean Sea) to freshwater flows and inner bay to open sea connections. The numerical model ROMS is applied nested to Copernicus models and validated with in situ data. Considering the results, only the modification of freshwater flows is recommended due to its lower impact on the environment and associated economic costs. None of the proposed solutions solve the problem related to warm waters.
Agustín Sánchez-Arcilla, Jue Lin-Ye, Manuel García-León, Vicente Gràcia, and Elena Pallarès
Ocean Sci., 15, 113–126, https://doi.org/10.5194/os-15-113-2019, https://doi.org/10.5194/os-15-113-2019, 2019
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A quantitative definition for the coastal border isotropy of met-ocean processes is proposed. Wind velocity and significant wave height anisotropies are examined along four transects at the north-western Mediterranean coast. Both decrease offshore, determining a coastal fringe of width of 2–4 km. The joint probability structure reflects a decoupling near the coast and a stronger dependence in the bay-like part, where the wave field is being more actively generated by the overlaying wind.
Laura Ràfols, Manel Grifoll, and Manuel Espino
Ocean Sci., 15, 1–20, https://doi.org/10.5194/os-15-1-2019, https://doi.org/10.5194/os-15-1-2019, 2019
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This study investigates the effects of the wave–current interactions in a region where episodes of strong cross-shelf wind occur. To do so, a coupled system between two numerical models has been implemented. The results do not show substantial differences in the water current patterns, but a clear effect on the water column stratification has been found. Additionally, stronger impact is observed for the wave period rather than the wave height.
Verónica Morales-Márquez, Alejandro Orfila, Gonzalo Simarro, Lluís Gómez-Pujol, Amaya Álvarez-Ellacuría, Daniel Conti, Álvaro Galán, Andrés F. Osorio, and Marta Marcos
Nat. Hazards Earth Syst. Sci., 18, 3211–3223, https://doi.org/10.5194/nhess-18-3211-2018, https://doi.org/10.5194/nhess-18-3211-2018, 2018
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This work analyzes the response of a beach under a series of storms using a numerical model, in situ measurements and video imaging.
Time recovery after storms is a key issue for local beach managers, who are pressed by tourism stakeholders to nourish the beach
after energetic processes in order to reach the quality standards required by beach users.
Manel Grifoll, Jorge Navarro, Elena Pallares, Laura Ràfols, Manuel Espino, and Ana Palomares
Nonlin. Processes Geophys., 23, 143–158, https://doi.org/10.5194/npg-23-143-2016, https://doi.org/10.5194/npg-23-143-2016, 2016
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In this contribution the wind jet dynamics in the northern margin of the Ebro River shelf (NW Mediterranean Sea) are investigated using coupled numerical models. The study area is characterized by persistent and energetic offshore winds during autumn and winter. However, the coupling effect in the wind resource assessment may be relevant due to the cubic relation between the wind intensity and power.
M. Grifoll, A. L. Aretxabaleta, J. L. Pelegrí, and M. Espino
Ocean Sci., 12, 137–151, https://doi.org/10.5194/os-12-137-2016, https://doi.org/10.5194/os-12-137-2016, 2016
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We investigate the rapidly changing equilibrium between the momentum sources and sinks during the passage of a single two-peak storm over the Catalan inner shelf (NW Mediterranean Sea). At 24m water depth, a primary momentum balance between acceleration, pressure gradient and frictional forces (surface and bottom) is established. The frictional adjustment timescale was around 10h, consistent with the e-folding time obtained from bottom drag parameterizations.
J. P. Sierra, M. Casas-Prat, M. Virgili, C. Mösso, and A. Sánchez-Arcilla
Nat. Hazards Earth Syst. Sci., 15, 1695–1709, https://doi.org/10.5194/nhess-15-1695-2015, https://doi.org/10.5194/nhess-15-1695-2015, 2015
P. Cerralbo, M. Grifoll, J. Moré, M. Bravo, A. Sairouní Afif, and M. Espino
Adv. Sci. Res., 12, 11–21, https://doi.org/10.5194/asr-12-11-2015, https://doi.org/10.5194/asr-12-11-2015, 2015
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Wind spatial heterogeneity in a coastal area (Alfacs Bay, northwestern Mediterranean Sea) is described using a set of observations and modelling results. Observations during 2012–2013 reveal that both N–NW winds and sea breezes appear to be affected by the local orography promoting high wind variability in relatively short spatial scales. The importance of wind models’ spatial resolution is also assessed and used to describe the spatial variability of the typical winds in the region.
A. Sánchez-Arcilla, M. García-León, and V. Gracia
Nat. Hazards Earth Syst. Sci., 14, 2993–3004, https://doi.org/10.5194/nhess-14-2993-2014, https://doi.org/10.5194/nhess-14-2993-2014, 2014
Related subject area
Approach: Operational Oceanography | Properties and processes: Coastal and near-shore processes
Integration of microseism, wavemeter buoy, HF radar and hindcast data to analyze the Mediterranean cyclone Helios
Alfio Marco Borzì, Vittorio Minio, Raphael De Plaen, Thomas Lecocq, Salvatore Alparone, Salvatore Aronica, Flavio Cannavò, Fulvio Capodici, Giuseppe Ciraolo, Sebastiano D'Amico, Danilo Contrafatto, Giuseppe Di Grazia, Ignazio Fontana, Giovanni Giacalone, Graziano Larocca, Carlo Lo Re, Giorgio Manno, Gabriele Nardone, Arianna Orasi, Marco Picone, Giovanni Scicchitano, and Andrea Cannata
Ocean Sci., 20, 1–20, https://doi.org/10.5194/os-20-1-2024, https://doi.org/10.5194/os-20-1-2024, 2024
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In this work, we study a Mediterranean cyclone that occurred in February 2023 and its relationship with a particular seismic signal called microseism. By integrating the data recorded by seismic stations, satellites, HF radar and wavemeter buoy we are able to obtain information about this event. We show how an innovative monitoring system of the Mediterranean cyclones can be designed by integrating microseism information with other techniques routinely used to study meteorological phenomena.
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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...
