Bibliografias temáticas / Malta Sicily channel

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Literatura científica selecionada sobre o tema "Malta Sicily channel"

Autor: Grafiati

Publicado: 1 de abril de 2023

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Artigos de revistas sobre o assunto "Malta Sicily channel"

Reyes Suarez, Cook, Gačić, Paduan, Drago e Cardin. "Sea Surface Circulation Structures in the Malta-Sicily Channel from Remote Sensing Data". Water 11, n.º 8 (31 de julho de 2019): 1589. http://dx.doi.org/10.3390/w11081589.

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The Malta-Sicily Channel is part of the Sicily Channel system where water and thermohaline properties between the Eastern and Western Mediterranean basins take place. Several mesoscales features are detached from the main circulation due to wind and bathymetric forcing. In this paper, surface circulation structures are studied using different remotely sensed datasets: satellite data (absolute dynamic topography, Cross-Calibrated Multi-Platform wind vector analysis, satellite chlorophyll and sea surface temperature) and high frequency radar data. We identified high frequency motions (at short time scales—hours to days), as well as mesoscale structures fundamental for the understanding of the Malta-Sicily Channel circulation dynamics. One of those is the Malta-Sicily Gyre; an anticyclonic structure trapped between the Sicilian and Maltese coasts, which is poorly studied in the literature and often confused with the Malta Channel Crest and the Ionian Shelf Break Vortex. In order to characterize this gyre, we calculated its kinetic properties taking advantage of the fine-scale temporal and spatial resolution of the high frequency radar data, and thus confirming its presence with an updated version of the surface circulation patterns in the area.

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Cuttitta, Angela, Bernardo Patti, Marianna Musco, Tiziana Masullo, Francesco Placenti, Enza Maria Quinci, Francesca Falco et al. "Inferring Population Structure from Early Life Stage: The Case of the European Anchovy in the Sicilian and Maltese Shelves". Water 14, n.º 9 (29 de abril de 2022): 1427. http://dx.doi.org/10.3390/w14091427.

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The European anchovy is an important fishing resource in the Sicilian Channel that supports a high recruitment success variability. The presence of two spawning areas, the drifting of the larvae along the currents and the different oceanographic conditions within the region suggest the presence of different larvae subpopulations. Morphometric and biochemical approaches have been used to analyze the differences among larvae collected. The amino acid composition discriminates two larval groups closely related to the spawning regions: Adventure Bank and the shelf between the South of Sicily and Malta. In addition, there are morphometric and growth differences between recently hatched larvae in these two regions, reinforcing the hypothesis of two larval subpopulations and suggesting differences in the parental reproduction effort. Between the South of Sicily and Malta there are growth and biochemical composition differences since larvae from the Maltese coast present a higher protein content and a bigger growth rate than those from Sicily, pointing out that Malta is an area with a better nutritional condition environment. No differences in the growth rate have been observed between the Adventure Bank area and the Maltese shelf, therefore, a diverse nutritional condition cannot be suggested between these two areas despite the Maltese larvae having a higher protein content present.

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Orasi, Arianna, Marco Picone, Aldo Drago, Fulvio Capodici, Adam Gauci, Gabriele Nardone, Roberto Inghilesi et al. "HF radar for wind waves measurements in the Malta-Sicily Channel". Measurement 128 (novembro de 2018): 446–54. http://dx.doi.org/10.1016/j.measurement.2018.06.060.

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Galea, Pauline, Matthew R. Agius, George Bozionelos, Sebastiano D’Amico e Daniela Farrugia. "A First National Seismic Network for the Maltese Islands—The Malta Seismic Network". Seismological Research Letters 92, n.º 3 (31 de março de 2021): 1817–31. http://dx.doi.org/10.1785/0220200387.

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Abstract The Sicily Channel, situated on the leading edge of the African plate as it collides with Europe, presents a range of interesting and complex tectonic processes that have developed in response to various regional stress fields. The characterization and interpretation of the seismic activity, however, still presents a challenge. The Maltese islands, lying approximately 100 km to the south of Sicily, are known to have been affected by a number of earthquakes in the Channel, with some of these events estimated to be very close to the islands. Yet, in the absence of nearby seismic instruments, an accurate evaluation and mapping of small magnitude seismicity, and, hence, the identification of unmapped active faults in the region, remains a challenge. This situation is being partially addressed through the deployment of more seismic stations on the Maltese archipelago. The Malta Seismic Network (MSN; International Federation of Digital Seismograph Networks code ML, see Data and Resources), managed by the Seismic Monitoring and Research Group, within the Department of Geosciences, University of Malta, currently comprises eight broadband, three-component stations covering an area of, approximately, 315 km2. Continuous seismic monitoring is possible following upgrades to real-time data transmission and automated epicenter location, coupled with a virtual seismic network established through SeisComP3, and focused mainly on the Mediterranean region. Such a dense national network, besides improving epicentral location in the Sicily Channel, will provide valuable information on microearthquake activity known to occur in close proximity to the islands, which has been very difficult to study in the past. It will also provide opportunities to study shallow crustal structure, site response on different geological substrates, microseismic noise propagation, and effects of anthropogenic activities. Here, we give a technical description of the MSN and an appraisal of its potential.

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Cosoli, Simone, Aldo Drago, Giuseppe Ciraolo e Fulvio Capodici. "Tidal currents in the Malta – Sicily Channel from high-frequency radar observations". Continental Shelf Research 109 (outubro de 2015): 10–23. http://dx.doi.org/10.1016/j.csr.2015.08.030.

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Capodici, Fulvio, Simone Cosoli, Giuseppe Ciraolo, Carmelo Nasello, Antonino Maltese, Pierre-Marie Poulain, Aldo Drago, Joel Azzopardi e Adam Gauci. "Validation of HF radar sea surface currents in the Malta-Sicily Channel". Remote Sensing of Environment 225 (maio de 2019): 65–76. http://dx.doi.org/10.1016/j.rse.2019.02.026.

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Biolchi, S., S. Furlani, F. Antonioli, N. Baldassini, J. Causon Deguara, S. Devoto, A. Di Stefano et al. "Boulder accumulations related to extreme wave events on the eastern coast of Malta". Natural Hazards and Earth System Sciences Discussions 3, n.º 10 (6 de outubro de 2015): 5977–6019. http://dx.doi.org/10.5194/nhessd-3-5977-2015.

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Abstract. The accumulation of large boulders related to waves generated either by tsunamis or extreme storm events has been observed in different areas of the Mediterranean Sea. Along the NE and E low-lying rocky coasts of Malta tens of large boulder deposits have been surveyed, measured and mapped. These boulders have been detached and moved from the seafloor and lowest parts of the coast by the action of sea waves. In the Sicily–Malta channel, heavy storms are common and originate from the NE and NW winds. Conversely, few severe earthquakes and tsunamis are recorded in historical documents to have hit the Maltese archipelago, originated by seismicity activity related mainly to the Malta Escarpment, the Sicily Channel Rift Zone and the Hellenic Arc. We present a multi-disciplinary study, which aims to define the characteristics of the boulder accumulations along the eastern coast of Malta, in order to assess the coastal geo-hazard implications triggered by the sheer ability of extreme waves to detach and move large rocky blocks inland. The wave heights required to transport coastal boulders were calculated using various hydrodynamic equations. Particular attention was devoted to the quantification of the input parameters required in the workings of these equations. The axis sizes of blocks were measured with 3-D digital photogrammetric techniques and their densities were obtained throughout the use of a N-type Schmidt Hammer. Moreover, AMS ages were obtained from selected marine organisms encrusted on some of the boulders in various coastal sites. The combination of the results obtained by hydrodynamic equations and the radiocarbon dating suggests that the majority of the boulders has been detached and moved by intense storm waves. Nonetheless, it is possible that some of them may have been transported by tsunami.

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Ciani, Daniele, Marie-Hélène Rio, Milena Menna e Rosalia Santoleri. "A Synergetic Approach for the Space-Based Sea Surface Currents Retrieval in the Mediterranean Sea". Remote Sensing 11, n.º 11 (30 de maio de 2019): 1285. http://dx.doi.org/10.3390/rs11111285.

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We present a method for the remote retrieval of the sea surface currents in the Mediterranean Sea. Combining the altimeter-derived currents with sea-surface temperature information, we created daily, gap-free high resolution maps of sea surface currents for the period 2012–2016. The quality of the new multi-sensor currents has been assessed through comparisons to other surface-currents estimates, as the ones obtained from drifting buoys trajectories (at the basin scale), or HF-Radar platforms and ocean numerical model outputs in the Malta–Sicily Channel. The study yielded that our synergetic approach can improve the present-day derivation of the surface currents in the Mediterranean area up to 30% locally, with better performances for the the meridional component of the motion and in the western section of the basin. The proposed reconstruction method also showed satisfying performances in the retrieval of the ageostrophic circulation in the Sicily Channel. In this area, assuming the High Frequency Radar-derived currents as reference, the merged multi-sensor currents exhibited improvements with respect to the altimeter estimates and numerical model outputs, mainly due to their enhanced spatial and temporal resolution.

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Drago, A. F., R. Sorgente e A. Ribotti. "A high resolution hydrodynamic 3-D model simulation of the malta shelf area". Annales Geophysicae 21, n.º 1 (31 de janeiro de 2003): 323–44. http://dx.doi.org/10.5194/angeo-21-323-2003.

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Abstract. The seasonal variability of the water masses and transport in the Malta Channel and proximity of the Maltese Islands have been simulated by a high resolution (1.6 km horizontal grid on average, 15 vertical sigma layers) eddy resolving primitive equation shelf model (ROSARIO-I). The numerical simulation was run with climatological forcing and includes thermohaline dynamics with a turbulence scheme for the vertical mixing coefficients on the basis of the Princeton Ocean Model (POM). The model has been coupled by one-way nesting along three lateral boundaries (east, south and west) to an intermediate coarser resolution model (5 km) implemented over the Sicilian Channel area. The fields at the open boundaries and the atmospheric forcing at the air-sea interface were applied on a repeating "perpetual" year climatological cycle. The ability of the model to reproduce a realistic circulation of the Sicilian-Maltese shelf area has been demonstrated. The skill of the nesting procedure was tested by model-modelc omparisons showing that the major features of the coarse model flow field can be reproduced by the fine model with additional eddy space scale components. The numerical results included upwelling, mainly in summer and early autumn, along the southern coasts of Sicily and Malta; a strong eastward shelf surface flow along shore to Sicily, forming part of the Atlantic Ionian Stream, with a presence throughout the year and with significant seasonal modulation, and a westward winter intensified flow of LIW centered at a depth of around 280 m under the shelf break to the south of Malta. The seasonal variability in the thermohaline structure of the domain and the associated large-scale flow structures can be related to the current knowledge on the observed hydrography of the area. The level of mesoscale resolution achieved by the model allowed the spatial and temporal evolution of the changing flow patterns, triggered by internal dynamics, to be followed in detail. This modelling effort has initiated the treatment of the open boundary conditions problem in view of the future implementation of shelf-scale real-time ocean forecasting through the sequential nesting of a hierarchy of successively embedded model domains for the downscaling of the hydrodynamics from the coarse grid Ocean General Circulation Model of the whole Mediterranean Sea to finer grids in coastal areas. Key words. Oceanography: general (continental shelf processes; numerical modelling) Oceanography: physical (general circulation)

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Todaro, S., A. Sulli, D. Spatola, A. Micallef, P. Di Stefano e G. Basilone. "Depositional mechanism of the upper Pliocene-Pleistocene shelf-slope system of the western Malta Plateau (Sicily Channel)". Sedimentary Geology 417 (maio de 2021): 105882. http://dx.doi.org/10.1016/j.sedgeo.2021.105882.

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Mais fontes

Capítulos de livros sobre o assunto "Malta Sicily channel"

Droghini, Elisa, Enrico Dinelli, Federico Spagnoli, Mario Tramontana, Giuseppe Baldelli e Giulio Pappafico. "Preliminary Geochemical Results from Sediments of Pantelleria, Linosa, and Malta Basins (Sicily Channel)". In Advances in Science, Technology & Innovation, 285–88. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-72547-1_60.

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Abulafia, David. "Deys, Beys and Bashaws, 1800–1830". In The Great Sea. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780195323344.003.0041.

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The battle of Trafalgar left the Mediterranean open to British shipping, but Great Britain had not yet gained incontestable mastery over the sealanes. The bitter struggle for control of Sicily and southern Italy between Britain, acting in support of King Ferdinand of Naples, and Napoleon’s armies, acting in support of Marshal Murat, who was trying to usurp the Neapolitan throne, reached a high point in July 1806 at the battle of Maida (a British victory, deep in Calabria). Maida demonstrated that Napoleon had been foolish in allowing so many troops to be pinned down in miserable conditions far from the areas in northern and central Italy he most wished to control. Earlier dreams of using Taranto as a base for controlling southern Italy and the entrance to the Adriatic and Ionian seas evaporated. Yet the British fleet was far more stretched than the story of its victories suggests. The British needed to keep open the channel of communication linking Malta to Trieste, for Trieste had become an important source of supplies from the Austrian empire, now that routes through Germany were blocked by Napoleon’s armies. And by 1808 the French seemed to be clawing back their control of the Mediterranean; they had re-established their fleet at Toulon, and there were fears of a naval attack on Naples and Sicily. The British government wondered whether there was any point pursuing war in the Mediterranean. Other concerns intruded: the French were trying to take control of Spain, and with the outbreak of the Peninsular War attention shifted to formidably tough land campaigns in Iberia. How difficult conditions were can be seen from the size of the British fleet, which had plenty of other duties to perform close to England, in the Caribbean and elsewhere. On 8 March 1808 fifteen ships of the line lay under the control of Admiral Collingwood, Nelson’s capable successor; one at Syracuse, one at Messina and one off Corfu; twelve stood guard at Cádiz. These large warships were supported by thirty-eight frigates, sloops, brigs and bomb-vessels within the Mediterranean, most of which were patrolling and reconnoitring as far afield as Turkey and the Adriatic.

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