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3. Wind-induced variability in the Northern Current (northwestern Mediterranean Sea) as depicted by a multi-platform observing system

Author

Berta, Maristella, primary, Bellomo, Lucio, additional, Griffa, Annalisa, additional, Magaldi, Marcello G., additional, Molcard, Anne, additional, Mantovani, Carlo, additional, Gasparini, Gian Pietro, additional, Marmain, Julien, additional, Vetrano, Anna, additional, Béguery, Laurent, additional, Borghini, Mireno, additional, Barbin, Yves, additional, Gaggelli, Joel, additional, and Quentin, Céline, additional

Published
2018
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4. Wind induced variability in the Northern Current (North-Western Mediterranean Sea) as depicted by a multi-platform observing system

Author

Berta, Maristella, primary, Bellomo, Lucio, additional, Griffa, Annalisa, additional, Magaldi, Marcello, additional, Molcard, Anne, additional, Mantovani, Carlo, additional, Gasparini, Gian Pietro, additional, Marmain, Julien, additional, Vetrano, Anna, additional, Béguery, Laurent, additional, Borghini, Mireno, additional, Barbin, Yves, additional, Gaggelli, Joel, additional, and Quentin, Céline, additional

Published
2018
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5. High Frequency Surface Wave Radar in the French Mediterranean Sea: an element of the Mediterranean Ocean Observing System for the Environment

Author

Quentin, Céline Gwenaëlle, Barbin, Yves, Bellomo, Lucio, Forget, Philippe, Mallarino, Didier, Marmain, Julien, Molcard, A., Zakardjian, Bruno, Institut méditerranéen d'océanologie (MIO), Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN)-Aix Marseille Université (AMU)-Institut de Recherche pour le Développement (IRD), Institut Pythéas (OSU PYTHEAS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut de Recherche pour le Développement (IRD), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), and Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], Coastal Observing System, High Frequency Surface Wave Radar, North Western Mediterranean Sea, Northern Current
Abstract

International audience; A Mediterranean Ocean Observing System for the Environment (MOOSE) has been set up as an interactive, distributed, and integrated observatory system of the North West Mediterranean Sea in order to detect and identify long-term environmental anomalies. In this framework, the Mediterranean Institute of Oceanography (MIO) operates two couple of High Frequency Surface Wave Radars (HFSWR). HFSWRs provide synoptic observations of sea surface currents with high temporal (0.25-1 h) and spatial (1-3 km) resolution and long range (30-100 km). They can therefore be used to study the variability of the current as well as eddy dynamics. One site, based on the WERA (Helzel Messtechnik) technology and installed near Toulon, is operational and monitored in real-time since more than 3 years. It is composed of two WERA systems featuring respectively a non-linear receiving array and a full bistatic configuration, both working in Direction Finding mode. The second site, intended to extend further East the coverage of the Observatory, was set up in 2014 near Nice with two SeaSonde (Codar) systems. We present here an overview of the HFSWR network, the surface current mapping facility offered by the system, and recent observational results and applications.

Published
2014

6. Surface current based connectivity in the Mediterranean Sea

Author

Costa, Andrea, Anne-Marie, Rammou, Bellomo, Lucio, Berline, L., Doglioli, Andrea M., Molcard, A., Petrenko, Anne, Sysmo, Laboratoire d'informatique de l'École polytechnique [Palaiseau] (LIX), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de sondages électromagnétiques de l'environnement terrestre (LSEET), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2014

7. HF radar and drifter observing system in the Adriatic for fishery management and security:7th EuroGOOS Conference

Author

Corgnati, Lorenzo, Carlson, Daniel Frazier, Mantovani, Carlo, Pazienza, Gianfranco, Magaldi, Marcello Gatimu, Bellomo, Lucio, Griffa, Annalisa, D'Adamo, Raffaele, Zambianchi, Enrico, and Celentano, Paulo

Subjects
HF Radar
Abstract

A HF radar system has been operating since May 2013 in the Southern Adriatic between the Gargano Cape and the Manfredonia Gulf. The system, that has been tested and complemented with drifter launchings during three experiments, produces maps of surface ocean velocities at 2 km resolution every hour. These data support fishery management as well as search and rescue and pollution mitigation operations. The Manfredonia Gulf is a known nursery area for small pelagic fish (anchovies and sardines), and its dynamics and connectivity properties are very relevant to the study of population dynamics. HF radar and drifter data has been used to study retention properties in the Gulf as well as its connection with spawning areas in the Adriatic.

Published
2014

8. Courantologie de surface: un radio-phare sur la côte sud de Porquerolles

Author

Barbin, Yves, Bellomo, Lucio, Forget, Philippe, Quentin, Céline Gwenaëlle, and Pin, Thierry

Subjects
[SDE.MCG] Environmental Sciences/Global Changes, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere, [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, [SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment, [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
Abstract

Grace au soutien du Parc National de Port-Cros, un radio-phare, en fait un petit émetteur d'ondes radioélectriques décimétriques dite "HF", fonctionne depuis le mois de mai 202 sur la côte sud de l'ile de Porquerolles.

Published
2014

9. Observed and modeled surface Lagrangian transport between coastal regions in the Adriatic Sea with implications for marine protected areas

Author

Carlson, Daniel F., primary, Griffa, Annalisa, additional, Zambianchi, Enrico, additional, Suaria, Giuseppe, additional, Corgnati, Lorenzo, additional, Magaldi, Marcello G., additional, Poulain, Pierre-Marie, additional, Russo, Aniello, additional, Bellomo, Lucio, additional, Mantovani, Carlo, additional, Celentano, Paolo, additional, Molcard, Anne, additional, and Borghini, Mireno, additional

Published
2016
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10. Empirical forecasting of HF-radar velocity using genetic algorithms

Author

Orfila, Alejandro, Molcard, Anne, Sayol, Juan Manuel, Marmain, Julien, Bellomo, Lucio, Quentin, Celine, Barbin, Yves, Orfila, Alejandro, Molcard, Anne, Sayol, Juan Manuel, Marmain, Julien, Bellomo, Lucio, Quentin, Celine, and Barbin, Yves

Abstract

© 1980-2012 IEEE. We present a coastal ocean current forecasting system using exclusively past observations of a high-frequency radar (HF-Radar). The forecast is made by developing a new approach based on physical and mathematical results of the nonlinear dynamical systems theory that allows to obtain a predictive equation for the currents. Using radial velocities from two HF-Radar stations, the spatiotemporal variability of the fields is first decomposed using the empirical orthogonal functions. The amplitudes of the most relevant modes representing their temporal evolution are then approximated with functions obtained through a genetic algorithm. These functions will be then combined to obtain the hourly currents at the area for the next 36 h. The results indicate that after 4 h and for a horizon of 24 h, the computed predictions provide more accurate current fields than the latest available field (i.e., persistent field).

Published
2015

11. Toward an integrated HF radar network in the Mediterranean sea to improve search and rescue and oil spill response: The TOSCA project experience

Author

European Commission, Bellomo, Lucio, Lana, Arancha, Sayol, Juan Manuel, Orfila, Alejandro, Tintoré, Joaquín, Zervakis, Vassilis, European Commission, Bellomo, Lucio, Lana, Arancha, Sayol, Juan Manuel, Orfila, Alejandro, Tintoré, Joaquín, and Zervakis, Vassilis

Abstract

High-frequency (HF) coastal radars measure current velocity at the ocean surface with a 30-100 km range and 1-3 km resolution, every 0.25-1 h. HF radars are well suited to many applications, such as search and rescue (SaR), oil-spill mitigation and ecosystem management. Here we present a first organized core of 12 HF radars installed in five sites in four countries (Greece, Italy, France and Spain) within the European MED project, the Tracking Oil Spill and Coastal Awareness (TOSCA) network. Dedicated experiments tested radar capabilities to estimate transport driven by currents, which is the key feature for all the above applications. Experiments involved the deployment of drifters, i.e., floating buoys, acting as proxies for substances passively advected by currents. Using HF radars the search range is reduced by a factor of 1.6 to 5.3 after 24 h. The paper also underlines the importance of sharing common tools for HF radar data processing and the need to mitigate radio frequency interference. The effort can be regarded as an initial step toward the creation of a Mediterranean or European HF radar network, crucial for any European integrated ocean observing system (IOOS).

Published
2015

12. HF radar in French Mediterranean Sea: an element of MOOSE Mediterranean Ocean Observing System on Environment

Author

Quentin, Céline Gwenaëlle, Barbin, Yves, Bellomo, Lucio, Forget, Philippe, Gagelli, Joël, Grosdidier, Samuel, Guérin, Charles-Antoine, Guihou, Karen, Marmain, Julien, Molcard, A., Zakardjian, Bruno, Guterman, Pascal, Bernardet, Karim, OPLC, Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Division technique INSU/SDU (DTI), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN), and Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN)

Subjects
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]
Abstract

International audience; In the framework of the French MOOSE project (Mediterranean Ocean Observing System on Environment), the Mediterranean Institute of Oceanography is operating HF radars on the North Western Mediterranean coast. The surface circulation in this region is characterized by a large-scale flow (Northern Current) and by a broad range of other scales of variability induced by meteorological and tidal forcing. The ability of HF radars is to provide synoptic observation as sea surface current map every hour and over long distances. One site is already operational nearby Toulon for more than two years and a second one is in deployment around Nice. This paper gives an overview of the radars network, of the surface current mapping facility offered by the system, and of recent observation results and applications.

Published
2013

13. Wind induced variability in the Northern Current (North-Western Mediterranean Sea) as depicted by a multi-platform observing system.

Author

Berta, Maristella, Bellomo, Lucio, Griffa, Annalisa, Magaldi, Marcello, Molcard, Anne, Mantovani, Carlo, Gasparini, Gian Pietro, Marmain, Julien, Vetrano, Anna, Béguery, Laurent, Borghini, Mireno, Barbin, Yves, Gaggelli, Joel, and Quentin, Céline

Subjects
GEOSTROPHIC currents, UPWELLING (Oceanography), OCEAN currents
Abstract

The variability and evolution of the Northern Current (NC) in the area off Toulon is studied for two weeks in December 2011 using data from a glider, a HF radar network, vessel surveys, a meteo station, and an atmospheric model. The NC variability is dominated by a synoptic response to wind events, even though a seasonal trend is also observed, transitioning from late summer to fall-winter conditions. With weak winds the current is mostly zonal and in geostrophic balance even at the surface, with a zonal transport associated to the NC of ≈ 1 Sv. Strong westerly wind events (longer than 2-3 days) induce an interplay between the direct wind induced ageostrophic response and the geostrophic component: upwelling is observed, with offshore surface transport, surface cooling, flattening of the isopycnals and reduced zonal geostrophic transport (0.5-0.7 Sv). The sea surface response to wind events, as observed by the HF radar, shows total currents rotated at ≈ -55° to -90° to the right of the wind. Performing a decomposition between geostrophic and geostrophic components of the surface currents, the wind driven ageostrophic component is found to rotate of ≈ -25° to -30° to the right of the wind. The ageostrophic component magnitude corresponds to ≈ 2 % of the wind speed. [ABSTRACT FROM AUTHOR]

Published
2018
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14. CORPORA E FORESTIERISMI: COADIUVANTI IL PROCESSO DI ACQUISIZIONE LINGUISTICA

Author

BELLOMO, LUCIO BRUNO

Subjects
Glottodidattica, Corpus, Forestierismi, Corpus Linguistics
Abstract

This paper aims at examining the principal benefits to Glottodidactics provided by the co-operation with Corpus Linguistics and by the analysis of loanwords. The first part of the present paper is a survey dealing with the involvement and cooperation between Glottodidactics and Corpus Linguistics, conveyed through the analysis of actual benefits and current developments: a rethinking in methods and characteristics of language acquisition process; the individualization of the role of the student as a researcher; the absence of anxiogenic factors; the presence of strong motivational elements. The second part is inspired by a shrewd guess that was made supposing that the use, or better, the recognition of particular lexical elements, such as loanwords, would be useful in a language acquisition process and, even more, in planning a language teaching “pathway”. A loanword, in its pure (or non-integrated) form, has a great potential in a glottodidactic perspective due to the stability of its aspect. On the other hand integrated loanwords have the special power to strengthen, to reinforce the mnemonic trace when added with a specific consideration about their aspect, their role, their meaning., Studi di glottodidattica, V. 5, N. 2 (2011)

Published
2012
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15. Study and realization of an UWB microwave radar based on phase conjugation

Author

Bellomo, Lucio, Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Université de Toulon, Marc Saillard, Sébastien Pioch, Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN), and STAR, ABES

Subjects
Inverse Scattering, [SPI.OTHER]Engineering Sciences [physics]/Other, Radar, [SPI.OTHER] Engineering Sciences [physics]/Other, Diffraction inverse, Retournement temporel, Time Reversal
Abstract

This thesis deals with non-destructive electromagnetic imaging. Its originality lies, primarily, in a marked experimental approach, which has led to the realization of a RADAR prototype able to acquire multisource-multistatic data within the [2-4] GHz frequency band. Furthermore, the system implements beamforming through a numerically-controlled attenuator/phase shifter array.On the one hand, qualitative imaging experiments have been performed. Time Reversal, as well as DORT and TR-MUSIC methods, have been applied to detect and localize scattering objects. In particular, the case of reverberating media has been dealt with.On the other hand, the prototype has been used for quantitative inverse scattering with very aspect-limited data. A non-linearized iterative algorithm taking into account the multi-frequency nature of the data has been adapted to the experimental configuration through a performing calibration procedure.Finally, the possibility of exploiting the features of Time Reversal within the quantitative frame has been studied. The goal is the improvement of the results in random media mimicking those typical of medical imaging (tumor detection) or sub-surface probing (land mine or oil detection) applications., Cette thèse s'inscrit dans le domaine de l'imagerie non-destructive en électromagnétisme. L'originalité du travail réside, tout d'abord, dans sa forte connotation expérimentale. Celle-ci a abouti à la construction d'un prototype RADAR capable d'acquérir des données multisources-multistatiques dans la gamme de fréquence [2-4] GHz. De plus, ce système implémente la formation de voies au moyen d'un réseau d'atténuateurs/déphaseurs commandé numériquement.Les expériences menées relèvent, d'une part, de l'imagerie qualitative. Le Retournement Temporel, ainsi que les méthodes DORT et TR-MUSIC, ont été appliqués afin de détecter et localiser des cibles diffractantes. Le cas des milieux réverbérants a notamment été abordé.D'autre part, le prototype a été utilisé dans le cadre de la diffraction inverse quantitative sur des données très limitées en ouverture. Un algorithme itératif non-linéarisé prenant en compte l'aspect multi-fréquentiel des données a été adapté à la configuration expérimentale notamment grâce à une procédure de calibration performante.Enfin, la possibilité de greffer les avantages du Retournement Temporel sur ces techniques quantitatives a été étudiée. L'objectif est l'amélioration des résultats dans des milieux aléatoires proches de ceux rencontrés notamment en imagerie médicale (détection de tumeurs) ou en sondage du sous-sol (détection de mines, de nappes de pétrole).

Published
2012

16. Time Reversal-Based Processing for Human Targets Detection in Realistic Through-The-Wall Scenarios

Author

Dubroca, R., Fortino, Nicolas, Dauvignac, Jean-Yves, Bellomo, Lucio, Pioch, S., Saillard, Marc, Lepetit, T., De Rosny, J., Prada, C., Millot, Patrick, Maaref, N., Boudamouz, B., Laboratoire d'Electronique, Antennes et Télécommunications (LEAT), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de sondages électromagnétiques de l'environnement terrestre (LSEET), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), ONERA - The French Aerospace Lab [Toulouse], and ONERA

Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2011

17. Microwave imaging in cluttered media with an Ultrawideband Time Reversal-based prototype

Author

BELLOMO, Lucio, Saillard, Marc, Pioch, Sebastien, Belkebir, K., Chaumet, P. C., Pin, Thierry, Laboratoire de sondages électromagnétiques de l'environnement terrestre ( LSEET ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Toulon ( UTLN ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Institut FRESNEL ( FRESNEL ), Aix Marseille Université ( AMU ) -Ecole Centrale de Marseille ( ECM ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de sondages électromagnétiques de l'environnement terrestre (LSEET), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Institut FRESNEL (FRESNEL), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)

Subjects
[ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing, [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, [SPI.ELEC] Engineering Sciences [physics]/Electromagnetism, [ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processing, [SPI.TRON] Engineering Sciences [physics]/Electronics, [SPI.TRON]Engineering Sciences [physics]/Electronics, [ SPI.TRON ] Engineering Sciences [physics]/Electronics, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [ SPI.ELEC ] Engineering Sciences [physics]/Electromagnetism, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
Abstract

In any application where one wants to reconstruct the electromagnetic properties of objects embed- ded in a cluttered medium [1, 2], it is mandatory to improve the signal-to-clutter ratio as much as possible before processing the scattered field data. If this is not done, non-linear inverse algorithms - which are known to be very sensitive to noise and clutter - are more easily trapped into local minima of the cost function, giving insatisfactory results. One way to achieve this task is to illuminate the scene with a wave focusing onto the relevant targets, so that the scattered field coming from the surrounding cluttered medium is reduced. One of the Time Reversal-issued methods known as DORT method [3] allows to easily generate such waves provided the time-harmonic multistatic data matrix associated to an array of antennas is measured. In fact, via a simple Singular Value Decomposition of the matrix, it has been shown [4] that the resulting singular vector(s) contain the complex amplitude law(s) needed to properly "bias" the array antennas. The idea is then to include the response to such DORT wave(s) within the inversion process in order to increase the robustness of the algorithm with respect to clutter. To prove and explore this concept, we have built a microwave-range RADAR prototype working in the [2-4] GHz band with an array of 8 ultrawideband linearly polarized Exponentially Tapered Slot Antennas (ETSA) [5]. Since each antenna channel is equipped with a couple of digitally controlled attenuator and phase shifter, we can experimentally build and transmit the focusing wave by coding the complex amplitudes of the DORT singular vectors into the prototype. Before inversing the 2D scattered field data, a fine antenna calibration procedure based on the same experimental data is run in order to properly model the incident field of the antennas. This step is delicate since a wrong or imprecise model could undermine the inversion results, and we solve it by applying a multipolar expansion of the incident field [6] combined with a separation between transmitting and receiving antenna patterns. Finally, the non-linear, iterative Modified2 Gradient Algorithm [7] is run to retrieve the features of the targets. It is here that we introduce DORT data as a regularization term of the "traditional" cost function. At the conference we will show experimental data and results proving the whole concept.

Published
2011

18. Microwave-range Imagery with an Ultrawideband Time Reversal-based RADAR

Author

Bellomo, Lucio, Pioch, Sebastien, Saillard, Marc, Laboratoire de sondages électromagnétiques de l'environnement terrestre ( LSEET ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Toulon ( UTLN ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Laboratoire de sondages électromagnétiques de l'environnement terrestre (LSEET), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), and Pin, Thierry

Subjects
[ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing, [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, [SPI.ELEC] Engineering Sciences [physics]/Electromagnetism, [ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processing, [SPI.TRON] Engineering Sciences [physics]/Electronics, [SPI.TRON]Engineering Sciences [physics]/Electronics, [ SPI.TRON ] Engineering Sciences [physics]/Electronics, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [ SPI.ELEC ] Engineering Sciences [physics]/Electromagnetism, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
Abstract

This work presents a new RADAR prototype built for the purpose of imaging targets located in a cluttered environment. The system is capable of performing Phase Conjugation experiments in the ultrawideband [2-4] GHz. In addition, applying the D.O.R.T. method to the inter-element matrix allows us to selectively focus onto targets, hence reducing the clutter contribution. The system has been validated by phsyically backpropagating the focusing wave into the medium all over the frequency band and observing the expected focusing properties.

Published
2010

21. Observation of Mesoscale Instabilities of the Northern Current in the North Western Mediterranean Sea: a combined study using Gliders, Surface Drifters, Moving Vessel Profiler and Vessel Data in the Ligurian

Author

Pairaud, Ivane, Garreau, Pierre, Le Berre, David, Fernandez, Delphine, Bellomo, Lucio, Garnier, Valerie, Pairaud, Ivane, Garreau, Pierre, Le Berre, David, Fernandez, Delphine, Bellomo, Lucio, and Garnier, Valerie

Abstract

The Northern Current (NC) is a branch of the general North-Western Mediterranean cyclonic circulation extending from the Ligurian to the Catalan Sea (Millot, Dynamics of Atmospheres and Oceans, vol. 15, 1991). In winter and early spring, instabilities of this slope current are intense and can generate eddies, meanders and filaments. The study of mesoscale structures is crucial in the coastal area because of their physical and biogeochemical impact on ecosystems. They play a role in water, chemicals and nutrients transport, vertical mixing and possible trapping of biological materials. Results from a combined observational effort put forth in March 2012 during the IMEDIA cruise dedicated to eddy tracking are presented. This work aims at providing experimental evidence of the effects that mesoscale exerts on the NC dynamics via an innovative and complementary data set. A Slocum Glider equipped with a CTD was deployed along the French coast from Nice to Toulon for one month and performed cross-current sections down to 600m depth. Drifters were deployed before the cruise in the Corsica Channel and close to Italy. Concurrent observations were obtained along the vessel track by a thermosalinograph and a fluorometer (subsurface measurements), and using a CTD and a Vessel-Mounted ADCP during the 11-day oceanographic cruise on board of the Research Vessel Tethys II. Additional water profiling was performed using a Moving Vessel Profiler (MVP) equipped with a CTD and capable of profiling down to 400m depth at a speed of 4 knots. The combined use of data from the MVP and the ship-based ADCP measurements reveals the presence of an instability of the NC north of the Corsica Island. The main branch of the current is moved westward and forms a meander. It is characterized by a density decrease down to 350m of the water column, associated with a salinity decrease of 0.4-0.6 psu (see Figure). Its location is confirmed by high-resolution satellite images as the associated water masse

Published
2014

22. Strong discrepancies between local temperature mapping and interpolated climatic grids in tropical mountainous agricultural landscapes

Author

Faye, Emile, Herrera, Mario, Bellomo, Lucio, Silvain, Jean-François, Dangles, Olivier, Faye, Emile, Herrera, Mario, Bellomo, Lucio, Silvain, Jean-François, and Dangles, Olivier

Abstract

Bridging the gap between the predictions of coarse-scale climate models and the fine-scale climatic reality of species is a key issue of climate change biology research. While it is now well known that most organisms do not experience the climatic conditions recorded at weather stations, there is little information on the discrepancies between microclimates and global interpolated temperatures used in species distribution models, and their consequences for organisms' performance. To address this issue, we examined the fine-scale spatiotemporal heterogeneity in air, crop canopy and soil temperatures of agricultural landscapes in the Ecuadorian Andes and compared them to predictions of global interpolated climatic grids. Temperature time-series were measured in air, canopy and soil for 108 localities at three altitudes and analysed using Fourier transform. Discrepancies between local temperatures vs. global interpolated grids and their implications for pest performance were then mapped and analysed using GIS statistical toolbox. Our results showed that global interpolated predictions over-estimate by 77.5±10% and under-estimate by 82.1±12% local minimum and maximum air temperatures recorded in the studied grid. Additional modifications of local air temperatures were due to the thermal buffering of plant canopies (from −2.7°K during daytime to 1.3°K during night-time) and soils (from −4.9°K during daytime to 6.7°K during night-time) with a significant effect of crop phenology on the buffer effect. This discrepancies between interpolated and local temperatures strongly affected predictions of the performance of an ectothermic crop pest as interpolated temperatures predicted pest growth rates 2.3–4.3 times lower than those predicted by local temperatures. This study provides quantitative information on the limitation of coarse-scale climate data to capture the reality of the climatic environment experienced by living organisms. In highly heterogeneous region such as trop

Published
2014

23. Expériences de renversement du temps en micro-ondes: description du radar et résultats

Author

Bellomo, Lucio, Pioch, Sebastien, Saillard, Marc, Spano, E., Biancheri-Astier, Marc, Laboratoire de sondages électromagnétiques de l'environnement terrestre (LSEET), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), ESTER - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), URSI France, and Cardon, Catherine

Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Réseau d'antennes, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, [SPI.ELEC] Engineering Sciences [physics]/Electromagnetism, Ultra-large bande, Retournement temporel, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, ComputingMilieux_MISCELLANEOUS, [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
Abstract

International audience

Published
2009

30. An Improved Antenna Calibration Methodology for Microwave Diffraction Tomography in Limited-Aspect Configurations.

Author

Bellomo, Lucio, Pioch, Sebastien, Saillard, Marc, and Belkebir, Kamal

Subjects
*ULTRA-wideband antennas, *ANTENNA array calibration, *ALGORITHMS, *GREEN'S functions, *BORN approximation
Abstract

This work underlines the importance of properly modeling the directivity of the antennas and proposes an improved calibration strategy in the framework of microwave diffraction tomography. Experiments to prove the effectiveness of the approach are carried out with a system comprising two ultrawideband linear antenna arrays. In the configurations presented herein, targets are in the near-field of the arrays and small aperture angles are considered (\sim40 deg). Multi-frequency multi-view multi-static quantitative inversions are performed using the modified^2 gradient method. The calibration approach reconstructs the directivity of the antennas using measured incident fields. The novelty consists in taking the reconstructed antenna pattern into account within the inversion algorithm both at transmission and at reception through a multipolar expansion of, respectively, the incident field and the data equation Green function. The results show that a fine modeling of the directivity of the antennas is paramount to image and separate scatterers, particularly when placed closer than the resolution limit of the system and beyond the Born approximation regime. [ABSTRACT FROM PUBLISHER]

Published
2014
Full Text
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31. CoCoNet: TOWARDS COAST TO COAST NETWORKS OF MARINE PROTECTED AREAS (FROM THE SHORE TO THE HIGH AND DEEP SEA), COUPLED WITH SEA-BASED WIND ENERGY POTENTIAL

Author

Boero, Ferdinando, Foglini, Federica, Fraschetti, Simona, Goriup, Paul, Macpherson, Enrique, Planes, Serge, Soukissian, Takvor, Adiloglu, Baris, Cristens, Gween, Delahaye, Catherine, Gregory, Ignace, Jacques, Sophie, Velkova, Stanislava, Kontogianni, Areti, Tourkolias, Christos, Kollaras, Aggelos, Damigos, Dimitris, Skourtos, Michalis, Bianco, Luisella, Cesarini, Claudia, Aliani, Stefano, Angeletti, Lorenzo, Barbieri, Laura, Beroldo, Raffaella, Falcieri, Francesco, Grande, Valentina, Griffa, Annalisa, Langone, Leonardo, Lazzari, Paolo, Lobato, Tomas, Miserocchi, Stefano, Palama, Daniela, Sclavo, Mauro, Solidoro, Cosimo, Suaria, Giuseppe, Taviani, Marco, Toncini, Annamaria, Trincardi, Fabio, Vichi, Marcello, Chassanite, Aurore, Claudet, Joachim, Feral, Francois, Marill, Laurence, Villa, Elisa, Taquet, Coralie, Boissin, Emilie, Mangialajo, Luisa, Bottin, Lorraine, Paravicini, Valeriano, Baksay, Sandra, Neglia, Valentina, Legoff, Marion, Dinoi, Alessia, Sahyoun, Rita, Bitetto, Isabella, Lembo, Giuseppe, Spedicato, Maria Teresa, Aglieri, Giorgio, Albano, Gabriele, Albano, Orazio, Arena, Giuseppe, Asnaghi, Valentina, Bavestrello, Giorgio, Belmonte, Genuario, Cecchi, Lisandro Benedetti, Bevilacqua, Stanislao, Bo, Marzia, Boscari, Elisa, Bulleri, Fabio, Calculli, Crescenza, Capezzuto, Francesca, Capone, Antonio, Carlucci, Roberto, Carluccio, Angela, Casagrandi, Renato, Vietti, Riccardo Cattaneo, Chiantore, Mariachiara, Chimienti, Giovanni, Ciardo, Lucia, Congiu, Leonardo, Corselli, Cesare, Cutrona, Annibale, D'Onghia, Gianfranco, Dal Bello, Martina, Mura, Ilaria Dalle, De Leo, Francesco, De Leo, Giulio, De Vito, Doris, Di Bella, Marco, Di Camillo, Cristina Gioia, Di Mauro, Maria, Fai, Sergio, Farella, Giulio, Forin, Niccolo, Fraschetti, Simonetta, Gatto, Marino, Ghermandi, Andrea, Giangrande, Elisa, Granata, Antonia, Gravili, Cinzia, Guarnieri, Giuseppe, Guglielmo, Letterio, Ingrosso, Gianmarco, Laggini, Maddalena, Liparoto, Anita, Lusardi, Richard, Maggi, Elena, Maiorano, Porzia, Mariani, Patrizio, Marino, Ilaria, Hernandez, Luis Felipe Martell, Mastrototaro, Francesco, Melia, Paco, Miglietta, Anna Maria, Moscatello, Salvatore, Mossa, Michele, Nutricato, Raffaele, Pansera, Marco, Papetti, Chiara, Patarnello, Tomaso, Paterno, Marta, Petrillo, Antonio, Piraino, Stefano, Piscitelli, Arcangelo, Procaccini, Gabriele, Rattray, Alex, Rizzo, Lucia, Valdes, Lina Pila Rodriguez, Rossetto, Marisa, Savini, Alessandra, Schiavina, Marcello, Scovazzi, Tullio, Sion, Letizia, Tamburello, Laura, Tani, Ilaria, Terlizzi, Antonio, Tessarolo, Chiara, Tursi, Angelo, Uttieri, Marco, Vertino, Agostina, Zambianchi, Enrico, Zane, Lorenzo, Addamo, Anna Maria, Andre, Michel, Ballesteros, Enrique, Cebrian, Emma, Coma, Rafael, Garcia Cisneros, Alex, Garcia-Rubies, Antoni, Guardiola, Magdalena, Lopez Marquez, Violeta, Machordom, Annie, Markandya, Anil, Ojea, Elena, Palacin, Creu, Pascual, Marta, Perez-Portela, Rocio, Ribes, Marta, Schunter, Celia, Serrano, Eduard, Templado, Jose, Carreras, Carlos, Tomas, Fiona, Turon, Xavier, Uriz, Iosune, Wangensteen, Owen, Christensen, Asbjorn, Kiorboe, Thomas, Sorensen, Thomas Kirk, Balan, Sorin, Begun, Tatiana, Briceag, Andrei, Dinu, Irina, Dulu, Florin, Ion, Gabriel, Jipa, Elena Ion Dan Constantin, Melinte, Mihaela, Muresan, Mihaela, Olteanu, Ana, Opreanu, Gheorghe, Panin, Nicolae, Popa, Adrian, Radan, Silviu, Secrieru, Dan-Mihai, Stanica, Adrian, Teaca, Adrian, Vasiliu, Dan, Bray, Laura, Anastasopoulou, Aikaterini, Kokkali, Athina, Assimakopoulou, Georgia, Voutsinas, Emanuela, Kontoyannis, Harilaos, Zervoudaki, Soultana, Pavlidou, Aleka, Axaopoloulos, Panagiotis, Karathanasi, Flora, Drakopoulou, Paraskevi, Katsanevakis, Stelios, Krassakopoulou, Eva, Kyriakidou, Hara, Papadopoulou, Maria Antonietta Pancucci, Papadopoulos, Anastasios, Papadopoulos, Vassilis, Papathanassiou, Vangelis, Petros, Pavlakis, Prospathopoulos, Aristidis, Reizopoulou, Sofia, Sakellariou, Dimitris, Salomidi, Maria, Vassilopoulou, Celia, Voukouvalas, Evangelos, Zanou, Veta, Berov, Dimitar, Daskalov, Georgi M., Deyanova, Diana, Dimov, Kuzman, Georgieva, Ioanna, Hiebaum, Georgi, Karamfilov, Ventzislav, Klayn, Stefania, Vassilev, Vassil, Vrabcheva, Yana, Macic, Vesna, Lucic, Davor, Pestoric, Branka, Alexandrov, Vladimir, Boltacheva, Nataliya, Bondareva, Liliya, Ignatyev, Sergey, Kolesnikova, Elena, Kovardakov, Sergey, Milchakova, Nataliya, Mironova, Nataliya, Nevrova, Elena, Pankeeva, Tatyana, Revkov, Nikolay, Sergeeva, Nelli, Shakhmatova, Olga, Tereshchenko, Nataliya, Zaika, Viktor, Deudero, Salud, Fort, Joan, Vazquez-Luis, Maite, Goni, Raquel, Aleksandrov, Borys, Minicheva, Galina, Ben Souissi, Jamila, Ghanem, Raouia, Rifi, Mouna, Zaouali, Jeanne, Anton, Eugen, Boicenco, Laura, Buga, Luminita, Coatu, Valentina, Golumbeanu, Mariana, Lazar, Luminita, Malciu, Viorel, Mateescu, Razvan, Micu, Dragos, Mihailov, Emanuela-Maria, Nenciu, Magda, Nicolaev, Simion, Niculescu, Dragos, Nita, Victor, Oros, Andra, Sarbu, Gheorghe, Spinu, Alina, Tiganov, George, Timofte, Florin, Zaharia, Tania, Dimitrov, Lyobomir, Ivanova, Petya, Todorova, Valentina, Panayotova, Marina, Doncheva, Valentina, Kotsev, Ilian, Prodanov, Bogdan, Galil, Bella, Ramdani, Mohamed, Elkhiati, Najat, Turan, Yelda Aktan, Eryalcin, Nur Eda Topcu, Keskin, Cetin, Ozturk, Bayram, Ozturk, Ayaka Amaha, Tonay, Arda M., Topaloglu, Bulent, Baykal, Cuneyt, Cihan, Sinem, Salihoglu, Bettina Fach, Gucu, Ali Cemal, Guler, Gokhan, Karahar, Arzu, Kideys, Alison, Kideys, Ahmet Erkan, Kirezci, Cagil, Kocac, Mustafa, Orek, Hasan, Ozturk, Destan, Ozyurt, Gulizar, Tezcan, Devrim, Yalciner, Ahmet, Yalciner, Bora, Zenginer, Arife, Barabanov, Vladyslav, Malinovsky, Vladimir, Motyzhova, Lyudmila, Beal, Stephen, Brown, Alison, Creed, Barbara, Haynes, Tom, Sanders, Natalie, Strike, Laurie, Arabidze, Marine, Chitanava, Ramaz, Kishinski, Lasha, Kordzakhia, George, Smadja, Charles, Bobylev, Leonid P., Davy, Richard, Gnatyuk, Natalia, Korosov, Anton, Pettersson, Lasse H., Pozdnyakov, Dmitry, Sandven, Stein, Gogoberidze, Georgy, Karlin, Lev, Mamaeva, Maria, Mikaelyan, Alexander, Shiganova, Tamara, Gagarin, Vladimir, Stupnikova, Alexandra, Sivkovich, Anastasia, Lifanchuk, Anna, Anohkina, Ludmila, Rebetsky, Alexander, Melnikov, Ivan, Meerov, Mark, Lukasheva, Taisia, Chasovnikov, Valerii, Podymova, Olga, Kubrikova, Natalia, Lus, Valentina, Musaeva, Eteri, Zasko, Daria, Pautova, Larisa, Dyakonov, Vladimir, Bat, Levent, Sezgin, Murat, Soria, Patricia Bueno, Rodriguez, Inigo Losada, Mendez, M. J., Menendez, Melisa, Perez, Jorge, Cotera Rim, Bouzgarrou, Kostyliov, Eduard, Leposhkin, Oleksandr, Lisovskyi, Richard, Bratchenko, Olga, Ivchenko, Evgeny, Turina, Veronika, Kruglov, Artem, Neprokin, Oleksandr, Kruschel, Claudia, Cizmek, Hrvoje, Kanski, Danijel, Belosevic, Mirko, Frleta, Darko, Petricioli, Donat, Schultz, Stewart, Beqiraj, Sajmir, Nasto, Ina, Zuna, Violeta, Hajderi, Edmond, Evans, Julian, Schembri, Patrick J., Terribile, Kimberly, Arnold, Kristin, Braun, Daniel, Czybulka, Detlef, Homuth, Jessica, Schachtner, Eva, Dobrev, Bojil, Staneva, Joanna, Novakova, Irina, Dineva, Blagovesta, Ballerini, Tosca, Bellomo, Lucio, Berline, Leo, Chan, Fabienne, Costa, Andrea, Doglioli, Andrea, Molcard, Anne, Petrenko, Anne, Rammou, Anna-Maria, Boero, Ferdinando, Foglini, Federica, Fraschetti, Simona, Goriup, Paul, Macpherson, Enrique, Planes, Serge, Soukissian, Takvor, Adiloglu, Bari, Cristens, Gween, Delahaye, Catherine, Gregory, Ignace, Jacques, Sophie, Velkova, Stanislava, Kontogianni, Areti, Tourkolias, Christo, Kollaras, Aggelo, Damigos, Dimitri, Skourtos, Michali, Bianco, Luisella, Cesarini, Claudia, Aliani, Stefano, Angeletti, Lorenzo, Barbieri, Laura, Beroldo, Raffaella, Falcieri, Francesco, Grande, Valentina, Griffa, Annalisa, Langone, Leonardo, Lazzari, Paolo, Lobato, Toma, Miserocchi, Stefano, Palama, Daniela, Sclavo, Mauro, Solidoro, Cosimo, Suaria, Giuseppe, Taviani, Marco, Toncini, Annamaria, Trincardi, Fabio, Vichi, Marcello, Chassanite, Aurore, Claudet, Joachim, Feral, Francoi, Marill, Laurence, Villa, Elisa, Taquet, Coralie, Boissin, Emilie, Mangialajo, Luisa, Bottin, Lorraine, Paravicini, Valeriano, Baksay, Sandra, Neglia, Valentina, Legoff, Marion, Dinoi, Alessia, Sahyoun, Rita, Bitetto, Isabella, Lembo, Giuseppe, Spedicato, Maria Teresa, Aglieri, Giorgio, Albano, Gabriele, Albano, Orazio, Arena, Giuseppe, Asnaghi, Valentina, Bavestrello, Giorgio, Belmonte, Genuario, Cecchi, Lisandro Benedetti, Bevilacqua, Stanislao, Bo, Marzia, Boscari, Elisa, Bulleri, Fabio, Calculli, Crescenza, Capezzuto, Francesca, Capone, Antonio, Carlucci, Roberto, Carluccio, Angela, Casagrandi, Renato, Vietti, Riccardo Cattaneo, Chiantore, Mariachiara, Chimienti, Giovanni, Ciardo, Lucia, Congiu, Leonardo, Corselli, Cesare, Cutrona, Annibale, D'Onghia, Gianfranco, Dal Bello, Martina, Mura, Ilaria Dalle, De Leo, Francesco, De Leo, Giulio, De Vito, Dori, Di Bella, Marco, Di Camillo, Cristina Gioia, Di Mauro, Maria, Fai, Sergio, Farella, Giulio, Forin, Niccolo, Fraschetti, Simonetta, Gatto, Marino, Ghermandi, Andrea, Giangrande, Elisa, Granata, Antonia, Gravili, Cinzia, Guarnieri, Giuseppe, Guglielmo, Letterio, Ingrosso, Gianmarco, Laggini, Maddalena, Liparoto, Anita, Lusardi, Richard, Maggi, Elena, Maiorano, Porzia, Mariani, Patrizio, Marino, Ilaria, Hernandez, Luis Felipe Martell, Mastrototaro, Francesco, Melia, Paco, Miglietta, Anna Maria, Moscatello, Salvatore, Mossa, Michele, Nutricato, Raffaele, Pansera, Marco, Papetti, Chiara, Patarnello, Tomaso, Paterno, Marta, Petrillo, Antonio, Piraino, Stefano, Piscitelli, Arcangelo, Procaccini, Gabriele, Rattray, Alex, Rizzo, Lucia, Valdes, Lina Pila Rodriguez, Rossetto, Marisa, Savini, Alessandra, Schiavina, Marcello, Scovazzi, Tullio, Sion, Letizia, Tamburello, Laura, Tani, Ilaria, Terlizzi, Antonio, Tessarolo, Chiara, Tursi, Angelo, Uttieri, Marco, Vertino, Agostina, Zambianchi, Enrico, Zane, Lorenzo, Addamo, Anna Maria, Andre, Michel, Ballesteros, Enrique, Cebrian, Emma, Coma, Rafael, Garcia Cisneros, Alex, Garcia-Rubies, Antoni, Guardiola, Magdalena, Lopez Marquez, Violeta, Machordom, Annie, Markandya, Anil, Ojea, Elena, Palacin, Creu, Pascual, Marta, Perez-Portela, Rocio, Ribes, Marta, Schunter, Celia, Serrano, Eduard, Templado, Jose, Carreras, Carlo, Tomas, Fiona, Turon, Xavier, Uriz, Iosune, Wangensteen, Owen, Christensen, Asbjorn, Kiorboe, Thoma, Sorensen, Thomas Kirk, Balan, Sorin, Begun, Tatiana, Briceag, Andrei, Dinu, Irina, Dulu, Florin, Ion, Gabriel, Jipa, Elena Ion Dan Constantin, Melinte, Mihaela, Muresan, Mihaela, Olteanu, Ana, Opreanu, Gheorghe, Panin, Nicolae, Popa, Adrian, Radan, Silviu, Secrieru, Dan-Mihai, Stanica, Adrian, Teaca, Adrian, Vasiliu, Dan, Bray, Laura, Anastasopoulou, Aikaterini, Kokkali, Athina, Assimakopoulou, Georgia, Voutsinas, Emanuela, Kontoyannis, Harilao, Zervoudaki, Soultana, Pavlidou, Aleka, Axaopoloulos, Panagioti, Karathanasi, Flora, Drakopoulou, Paraskevi, Katsanevakis, Stelio, Krassakopoulou, Eva, Kyriakidou, Hara, Papadopoulou, Maria Antonietta Pancucci, Papadopoulos, Anastasio, Papadopoulos, Vassili, Papathanassiou, Vangeli, Petros, Pavlaki, Prospathopoulos, Aristidi, Reizopoulou, Sofia, Sakellariou, Dimitri, Salomidi, Maria, Vassilopoulou, Celia, Voukouvalas, Evangelo, Zanou, Veta, Berov, Dimitar, Daskalov, Georgi M., Deyanova, Diana, Dimov, Kuzman, Georgieva, Ioanna, Hiebaum, Georgi, Karamfilov, Ventzislav, Klayn, Stefania, Vassilev, Vassil, Vrabcheva, Yana, Macic, Vesna, Lucic, Davor, Pestoric, Branka, Alexandrov, Vladimir, Boltacheva, Nataliya, Bondareva, Liliya, Ignatyev, Sergey, Kolesnikova, Elena, Kovardakov, Sergey, Milchakova, Nataliya, Mironova, Nataliya, Nevrova, Elena, Pankeeva, Tatyana, Revkov, Nikolay, Sergeeva, Nelli, Shakhmatova, Olga, Tereshchenko, Nataliya, Zaika, Viktor, Deudero, Salud, Fort, Joan, Vazquez-Luis, Maite, Goni, Raquel, Aleksandrov, Bory, Minicheva, Galina, Ben Souissi, Jamila, Ghanem, Raouia, Rifi, Mouna, Zaouali, Jeanne, Anton, Eugen, Boicenco, Laura, Buga, Luminita, Coatu, Valentina, Golumbeanu, Mariana, Lazar, Luminita, Malciu, Viorel, Mateescu, Razvan, Micu, Drago, Mihailov, Emanuela-Maria, Nenciu, Magda, Nicolaev, Simion, Niculescu, Drago, Nita, Victor, Oros, Andra, Sarbu, Gheorghe, Spinu, Alina, Tiganov, George, Timofte, Florin, Zaharia, Tania, Dimitrov, Lyobomir, Ivanova, Petya, Todorova, Valentina, Panayotova, Marina, Doncheva, Valentina, Kotsev, Ilian, Prodanov, Bogdan, Galil, Bella, Ramdani, Mohamed, Elkhiati, Najat, Turan, Yelda Aktan, Eryalcin, Nur Eda Topcu, Keskin, Cetin, Ozturk, Bayram, Ozturk, Ayaka Amaha, Tonay, Arda M., Topaloglu, Bulent, Baykal, Cuneyt, Cihan, Sinem, Salihoglu, Bettina Fach, Gucu, Ali Cemal, Guler, Gokhan, Karahar, Arzu, Kideys, Alison, Kideys, Ahmet Erkan, Kirezci, Cagil, Kocac, Mustafa, Orek, Hasan, Ozturk, Destan, Ozyurt, Gulizar, Tezcan, Devrim, Yalciner, Ahmet, Yalciner, Bora, Zenginer, Arife, Barabanov, Vladyslav, Malinovsky, Vladimir, Motyzhova, Lyudmila, Beal, Stephen, Brown, Alison, Creed, Barbara, Haynes, Tom, Sanders, Natalie, Strike, Laurie, Arabidze, Marine, Chitanava, Ramaz, Kishinski, Lasha, Kordzakhia, George, Smadja, Charle, Bobylev, Leonid P., Davy, Richard, Gnatyuk, Natalia, Korosov, Anton, Pettersson, Lasse H., Pozdnyakov, Dmitry, Sandven, Stein, Gogoberidze, Georgy, Karlin, Lev, Mamaeva, Maria, Mikaelyan, Alexander, Shiganova, Tamara, Gagarin, Vladimir, Stupnikova, Alexandra, Sivkovich, Anastasia, Lifanchuk, Anna, Anohkina, Ludmila, Rebetsky, Alexander, Melnikov, Ivan, Meerov, Mark, Lukasheva, Taisia, Chasovnikov, Valerii, Podymova, Olga, Kubrikova, Natalia, Lus, Valentina, Musaeva, Eteri, Zasko, Daria, Pautova, Larisa, Dyakonov, Vladimir, Bat, Levent, Sezgin, Murat, Soria, Patricia Bueno, Rodriguez, Inigo Losada, Mendez, M. J., Menendez, Melisa, Perez, Jorge, Cotera Rim, Bouzgarrou, Kostyliov, Eduard, Leposhkin, Oleksandr, Lisovskyi, Richard, Bratchenko, Olga, Ivchenko, Evgeny, Turina, Veronika, Kruglov, Artem, Neprokin, Oleksandr, Kruschel, Claudia, Cizmek, Hrvoje, Kanski, Danijel, Belosevic, Mirko, Frleta, Darko, Petricioli, Donat, Schultz, Stewart, Beqiraj, Sajmir, Nasto, Ina, Zuna, Violeta, Hajderi, Edmond, Evans, Julian, Schembri, Patrick J., Terribile, Kimberly, Arnold, Kristin, Braun, Daniel, Czybulka, Detlef, Homuth, Jessica, Schachtner, Eva, Dobrev, Bojil, Staneva, Joanna, Novakova, Irina, Dineva, Blagovesta, Ballerini, Tosca, Bellomo, Lucio, Berline, Leo, Chan, Fabienne, Costa, Andrea, Doglioli, Andrea, Molcard, Anne, Petrenko, Anne, and Rammou, Anna-Maria

Subjects
Connectivity, Computer Networks and Communications, Networks of Marine Protected Area, Biodiversity, Black Sea, Connectivity, Economic valuation, Ecosystem functioning, Marine Spatial Planning, Mediterranean Sea, Networks of Marine Protected Areas, Offshore Wind Farms, Wind energy, Computer Science Applications1707 Computer Vision and Pattern Recognition, Offshore Wind Farms, Conservation, Information System, Biodiversity, Offshore Wind Farm, Library and Information Sciences, Black Sea, Economic valuation, Ecosystem functioning, Marine Spatial Planning, Mediterranean Sea, Networks of Marine Protected Areas, Wind energy, Information Systems, Computer Networks and Communication, Networks of Marine Protected Areas, Mediterranean Sea, Black Sea, Biodiversity, Ecosystem functioning, Connectivity, Wind energy, Offshore Wind Farms, Marine Spatial Planning, Economic valuation
Abstract

This volume contains the main results of the EC FP7 “The Ocean of Tomorrow” Project CoCoNet, divided in two sections: 1) a set of guidelines to design networks of Marine Protected Areas in the Mediterranean and the Black Seas; 2) a smart wind chart that will allow evaluating the possibility of installing Offshore Wind Farms in both seas. The concept of Cells of Ecosystem Functioning, based on connectivity, is introduced to define natural units of management and conservation. The definition of Good Environmental Status, as defined in the Marine Strategy Framework Directive, is fully embraced to set the objectives of the project, by adopting a holistic approach that integrates a full set of disciplines, ranging from physics to bio-ecology, economics, engineering and many sub-disciplines. The CoCoNet Consortium involved scientists from 22 states, based in Africa, Asia, and Europe, contributing to build a coherent scientific community.

32. Observation of Mesoscale Instabilities of the Northern Current in the North Western Mediterranean Sea: a combined study using Gliders, Surface Drifters, Moving Vessel Profiler and Vessel Data in the Ligurian

Author

Ivane Pairaud, Pierre GARREAU, david Berre, Fernandez, Delphine, Bellomo, Lucio, and Valérie Garnier

Abstract

The Northern Current (NC) is a branch of the general North-Western Mediterranean cyclonic circulation extending from the Ligurian to the Catalan Sea (Millot, Dynamics of Atmospheres and Oceans, vol. 15, 1991). In winter and early spring, instabilities of this slope current are intense and can generate eddies, meanders and filaments. The study of mesoscale structures is crucial in the coastal area because of their physical and biogeochemical impact on ecosystems. They play a role in water, chemicals and nutrients transport, vertical mixing and possible trapping of biological materials. Results from a combined observational effort put forth in March 2012 during the IMEDIA cruise dedicated to eddy tracking are presented. This work aims at providing experimental evidence of the effects that mesoscale exerts on the NC dynamics via an innovative and complementary data set. A Slocum Glider equipped with a CTD was deployed along the French coast from Nice to Toulon for one month and performed cross-current sections down to 600m depth. Drifters were deployed before the cruise in the Corsica Channel and close to Italy. Concurrent observations were obtained along the vessel track by a thermosalinograph and a fluorometer (subsurface measurements), and using a CTD and a Vessel-Mounted ADCP during the 11-day oceanographic cruise on board of the Research Vessel Tethys II. Additional water profiling was performed using a Moving Vessel Profiler (MVP) equipped with a CTD and capable of profiling down to 400m depth at a speed of 4 knots. The combined use of data from the MVP and the ship-based ADCP measurements reveals the presence of an instability of the NC north of the Corsica Island. The main branch of the current is moved westward and forms a meander. It is characterized by a density decrease down to 350m of the water column, associated with a salinity decrease of 0.4-0.6 psu (see Figure). Its location is confirmed by high-resolution satellite images as the associated water masses are cooler and more oligotrophic than the adjacent ones. Additional measurements from the glider deployed off the French coast show that inside the NC vein, the water column has a multi-layer structure with the presence of filaments of differing salinity and temperature.

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