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Article

Multi-Platform, High-Resolution Study of a Complex Coastal System: The TOSCA Experiment in the Gulf of Trieste

1
National Institute of Oceanography and Applied Geophysics—OGS, 34010 Trieste, Italy
2
Ocean Graduate School and the UWA Oceans Institute, The University of Western Australia, Crawley, WA 6009, Australia
3
National Institute of Biology—Marine Biology Station, 6330 Piran, Slovenia
4
Slovenian Environment Agency, Department of Meteorology and Hydrology, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Academic Editor: Yannis N. Krestenitis
J. Mar. Sci. Eng. 2021, 9(5), 469; https://doi.org/10.3390/jmse9050469
Received: 19 March 2021 / Revised: 18 April 2021 / Accepted: 19 April 2021 / Published: 27 April 2021
(This article belongs to the Special Issue Monitoring and Modelling of Coastal Environment)
Although small in size, the Gulf of Trieste (GoT), a marginal coastal basin in the northern Adriatic Sea, is characterized by very complex dynamics and strong variability of its oceanographic conditions. In April–May 2012, a persistent, large-scale anticyclonic eddy was observed in the GoT. This event was captured by both High Frequency Radar (HFR) and Lagrangian drifter observations collected within the European MED TOSCA (Tracking Oil Spill and Coastal Awareness) project. The complexity of the system and the variety of forcing factors constitute major challenges from a numerical modeling perspective when it comes to simulating the observed features. In this study, we implemented a high-resolution hydrodynamic model in an attempt to reproduce and analyze the observed basin-wide eddy structure and determine its drivers. We adopted the Massachusetts Institute of Technology General Circulation Model (MITgcm), tailored for the GoT, nested into a large-scale simulation of the Adriatic Sea and driven by a tidal model, measured river freshwater discharge data and surface atmospheric forcing. Numerical results were qualitatively and quantitatively evaluated against HFR surface current maps, Lagrangian drifter trajectories and thermohaline data, showing good skills in reproducing the general circulation, but failing in accurately tracking the drifters. Model sensitivity to different forcing factors (wind, river and tides) was also assessed. View Full-Text
Keywords: Adriatic Sea; surface circulation; HF coastal radars; Lagrangian drifters; wind-driven currents; ocean circulation models Adriatic Sea; surface circulation; HF coastal radars; Lagrangian drifters; wind-driven currents; ocean circulation models
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MDPI and ACS Style

Querin, S.; Cosoli, S.; Gerin, R.; Laurent, C.; Malačič, V.; Pristov, N.; Poulain, P.-M. Multi-Platform, High-Resolution Study of a Complex Coastal System: The TOSCA Experiment in the Gulf of Trieste. J. Mar. Sci. Eng. 2021, 9, 469. https://doi.org/10.3390/jmse9050469

AMA Style

Querin S, Cosoli S, Gerin R, Laurent C, Malačič V, Pristov N, Poulain P-M. Multi-Platform, High-Resolution Study of a Complex Coastal System: The TOSCA Experiment in the Gulf of Trieste. Journal of Marine Science and Engineering. 2021; 9(5):469. https://doi.org/10.3390/jmse9050469

Chicago/Turabian Style

Querin, Stefano, Simone Cosoli, Riccardo Gerin, Célia Laurent, Vlado Malačič, Neva Pristov, and Pierre-Marie Poulain. 2021. "Multi-Platform, High-Resolution Study of a Complex Coastal System: The TOSCA Experiment in the Gulf of Trieste" Journal of Marine Science and Engineering 9, no. 5: 469. https://doi.org/10.3390/jmse9050469

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