Elvira Armenio, Diana De Padova, Francesca De Serio, Michele Mossa
The present paper aims to deduce typical physical and hydrodynamic patterns by analyzing and discussing long term and continuous recordings of marine field data. In detail, hourly measurements of wind, waves, current velocity, water temperature, salinity, chlorophyll were assessed by two monitoring stations in the period January 2016 - December 2016. They were archived in monthly time-series and successively processed to track recurrent trends and features in the target basin. Specifically, a correlation among wind, waves and current was found. Comparisons with analogous recordings of the...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Deiana G., Meleddu A., Orrù. P. E.
During the oceanographic cruise, “BOCCHE 2003” (Project: Geologia e geomorfologia terrestre e marina dell’insieme Corsica-Sardegna e della Toscana e applicazioni” PIC- INTERREG III) and “Sardegna 2010” (Project MAGIC – Protezione Civile Italiana”), Multibeam, Side Scan Sonar and GeoChirp data were obtained and samples of superficial sediment have been taken. The analysis of data highlighted on mobile funds, the presence of complex bedforms associations, typical of continental shelf environment affected by high flow rate currents, both mono or bidirectional. Integrated analysis of...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Meo A., Chiocci F. L, Senatore M. R.
The upper reach of the Taranto Canyon is the main signature of the continental slope in the western Taranto Gulf. It starts at the shelf break 30 m deep and reaches 450 m of depth, covering a total area of about 50 km²; the minimum distance from the coast is 2,5 km. Multibeam data were acquired to reconstruct a detailed Digital Elevation Models (DEM), and then a morphometric analysis was carried out allowing to identify several drainage basins and to define the active morphodynamic processes acting in the upper reach. The measures of the morphometric parameters have allowed to obtain the...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Enrico Petritoli, Fabio Leccese
This paper describes an integrated control system architecture with a high accuracy navigation system for an underwater glider. To optimize the glider performances, a centralized control system called "Glider Integrated Control System (GICS)" is provided: part of this system oversees the navigation function, based on an INS reference. Unlike an UAV system, in our case, some important inertial navigation error terms cannot be neglected due to the peculiar mission.
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Ján Šaliga, Dušan Kocur, Pavol Galajda, Miloš Drutarovský, Ľudmila Maceková, Imrich Andráš, Linus Michaeli
Water quality in the sea especially around the mouths of rivers is greatly affected by the quality of river water bringing polluting agents. The paper presents a possible solution of wireless sensor network for river water quality monitoring. The network has been developed with support of EU as a pilot project. It consists of 10 buoys carrying sensors, short and long distance communication systems and two central control nodes processing sensed data and perform their visualization and storage. Moreover, the central nodes perform SMS and email alerting and administration of whole network. The...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Sara Innangi, Renato Tonielli
Acoustic methods for seafloor mapping have been widely developed over the last decades. In particular, the development of swath bathymetry has allowed the creation of detailed maps of seabed topography and acoustic backscatter data; these data have been used to infer sediment and habitat types. So the Multi-Beam Echo Sounder (MBES) is a tool that allows getting information about bathymetric, morphological and compositional characteristics of the seabed surface. In addition to this, MBES can now also discriminate the acoustic imaging of the water mass by recording sampled reflectivity...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Agate M., Tamburrino S., Sulli A., Placenti F., Sprovieri M., Lo Iacono C., Passaro S.
We present morphological and stratigraphic results coming from surveys acquired in a NNW-SSE trending submarine depression (Marettimo Valley) located in the Egadi Islands (western Sicily offshore). In this area the seafloor is characterized by both depositional and erosional features generated under a variety of sedimentary processes. We identified two seismic facies units that are correlatable to: A) the progradation of shallow water (coastal to offshore) deposits during forced-regression sedimentary process, and B) contourite drifts emplaced by geostrophic currents through the Marettimo...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Eleonora Stefanutti, Fabio Bruni
We propose a method to denoise 1D experimental signals using wavelet transform. Noise affecting experimental signals is indeed a problem shared by many different scientific and engineering fields and a proper strategy of denoising, avoiding the loss of useful information embedded in the original signal, is often essential. This is especially true for spectroscopic data, where significant features may be hidden by noise or covered by undesired components, which are not related to the physical content of the signal. In particular, we have applied the Discrete Wavelet Transform (DWT) to...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Alessandra Savini, Marco Taviani, Fabio Marchese, Agostina Vertino, Cesare Corselli, Marie-Claire Fabri, Andrè Freiwald, Jozée Sarrazin
Framework building scleractinian Cold-Water Corals (CWC) are able to form biogenic reefs in a number of geomorphic setting on continental margins, seamounts and oceanic banks. In this study we show the results obtained from a variety of mapping approaches (used at a range of scales) to map the distribution of CWC habitats in the northern Ionian Sea. A special focus is given to the analysis of ROV-based micro-bathymetry, that was pivotal for measuring, at metric resolution, the reef growth structure of a single, representative coral-topped mound of the region.
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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Daniele Spatola, Aaron Micallef, Attilio Sulli, Luca Basilone, Gualtiero Basilone
Active Fluid Seepage (AFS) at the seafloor is a global phenomenon associated with seafloor morphologies in different geodynamic contexts. Advances geophysical techniques have allowed geoscientists to characterise pockmarks, mounds and flares associated with AFS. We present a range of marine geological data acquired in the central Mediterranean Sea (northern Sicily continental margin, northwestern Sicily Channel and offshore the Maltese Islands), which allow us to identify AFSs. The AFSs are spatially distributed as clusters, aligned or isolated at different depths, ranging from few...
1st IMEKO TC19 Workshop on Metrology for the Sea
· TC19
· 2017
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