Current observations from a looking down vertical V-ADCP: interaction with winds and tide? The case of Giglio Island (Tyrrhenian Sea, Italy)

Abstract

In the context of the environmental monitoring of the Concordia wreck removal\ud project, measurements of currents, winds and sea level height were made along the eastern coast\ud of the Giglio Island, Tyrrhenian Sea (Italy), during 2012—2013. The aim of the study was to\ud investigate the effect of atmospheric forcing and periodic sea-level changes on the coastal\ud currents. Normalised Cross-Correlation Function analysis allowed us to correlate these observations.\ud A marked inter-seasonal variability was found in both current and local wind velocity\ud observations but a significant level of correlation between the data was only found during strong\ud wind events. Current and wind directions appeared to be uncorrelated and current measurements\ud showed a predominant NW—SE direction, presumably linked to the shape and orientation of Giglio\ud Island itself. During strong winds from the SSE, current\ud flow was towards the NNW but it suddenly\ud switched from the NNW to the SE at the end of wind events. The results show that, at Giglio Island,\ud currents are principally dominated by the general cyclonic Tyrrhenian circulation, and, secondly,\ud by strong wind events. The sea level had no effects on the current regime

First record of ‘plasticrusts’ and ‘pyroplastic’ from the Mediterranean Sea

“…2.6 m; Cacabelos et al 2019) is much wider than in the Tyrrhenian Sea (ca. 0.45 m; Cutroneo et al 2017), this observation suggests that tidal amplitude may influence 'plasticrust' spread. Thus, we conclude that 'plasticrust' abundance may depend on the local levels of nearshore plastic debris, wave exposure and tidal amplitude.…”

Shoreline evolution and modern beach sand composition along a coastal stretch of the Tyrrhenian Sea, southern Italy

“…For the shoreline identification, we did not consider sea-level fluctuations related to tides of astronomical origin, because they are highly dependent on the topography of the marine basin (e.g. Ferrarin et al 2013;Cutroneo et al 2017). Indeed, along the steep seabed of the Calabria Tyrrhenian coast the sea-level fluctuations are very low and can be negligible (e.g.…”

Influence of Floating Structures on Tide- and Wind-Driven Hydrodynamics of a Highly Populated Marina

“…Even if wind forcing can influence velocity fields, considering the relatively shallow depths of the water column, numerical modeling suggests a major impact for tide on the currents. Then, contrary to the Bilbao (Grifoll et al, 2009) and Genoa ports (Cutroneo et al, 2017), density-driven circulation is considered nonexistent in La Rochelle marina. Indeed, there is no freshwater influence except during occasional heavy rainfall.…”