36 results on '"Corgnati L."'
Search Results
2. European High Frequency Radar network governance
- Author
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Rubio A., Reyes E., Mantovani C., Corgnati L., Lorente P., Solabarrieta L., Mader J., Fernandez V., Pouliquen S., Novellino A., Karstensen, and Petihakis G.
- Subjects
governance ,EuroGOOS ,EuroSea ,HFR Task Team ,HFR - Abstract
This report describes the governance of the European HF radar network including: the landscape of the Ocean observation networks and infrastructures, the role and links between operators of observational systems and stakeholders, the role and activities of the EuroGOOS HF radar Task Team in building a sound community strategy, the roadmap of the community with current achievements and future work lines.
- Published
- 2021
3. Strumenti e indicazioni di governance transfrontaliera. Piano d'azione e linee guida del progetto IMPACT. Instruments et indications pour la gouvernance transfrontalière. Plan d'action et lignes directrices du projet IMPACT
- Author
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Magaldi M. G., Barbieri L., Mantovani C., Baratti M., Bendoni M., Berta M., Berto D., Bigongiari N., Boccacci A., Bramanti L., Brandini C., Calace N., Caliani I., Cannicci S., Casini S., Connès C., Corgnati L. P., Costanza L., Coudray S., Cristofori S., Di Mento R., Doronzo B., Dumas D., Fattorini M., Femiano R., Fratini S., Galgani F., Galli T., Gozzini B., Gramoullé A., Grassini I., Griffa A., Guizien K., Guérin C.-A., Iozzelli M., Lapucci C., Lenoble V., Maltese S., Mario S., Mazoyer C., Mengoni A., Menonna V., Molcard A., Oliva M., Ortolani A., Ourmières Y., Padrón M., Piermarini R., Pretti C., Romanelli G., Ruberti G., Scarpato A., Sciascia R., Silvestri C., Taddei S., Ugolini A., Vanneste H., Vannucchi V., and Xu D
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linee guida ,italia ,HFR HF radar ,francia ,Interreg ,transfrontaliero ,modelli numerici - Abstract
Il presente documento restituisce una sintesi delle attività del progetto IMPACT ed è diviso in due parti. La prima parte evidenzia gli strumenti completati durante la durata del progetto, in particolare la rete di radar costieri per il monitoraggio delle correnti marine e la piattaforma webGIS per la consultazione dei dati raccolti ed elaborati dai partner di progetto. La seconda parte capitalizza sui suddetti strumenti per fornire sia indicazioni metodologiche che di governance. Nello specifico, la rete di radar costieri viene utilizzata per creare mappe di potenziale contaminazione e indicare in che condizioni le attività portuali possano essere più sostenibili. Le misure demografiche e i calcoli di ritenzione indicano il livello d'efficacia delle dimensioni attuali delle AMP mentre le misure di contaminazione suggeriscono di considerare un numero maggiore di stazioni nell'ottica di migliorare i piani di monitoraggio esistenti. In quest'ottica, le indicazioni rappresentano il piano d'azione e le linee guida del progetto. L'ulteriore espansione della rete di radar costieri prevista nei progetti SICOMAR plus e SINAPSI è la prova che la conclusione delle attività del progetto IMPACT sia in realtà solo un importante punto di partenza.
- Published
- 2021
4. Strumenti e indicazioni di governance transfrontaliera. Piano d’azione e linee guida del progetto IMPACT [Instruments et indications pour la gouvernance transfrontalière. Plan d’action et lignes directrices du projet IMPACT]
- Author
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Magaldi, M. G., Barbieri, L., Mantovani, C., Baratti, M., Bendoni, M., Berta, M., Berto, D., Bigongiari, N., Boccacci, A., Bramanti, L., Brandini, C., Calace, N., Caliani, I., Cannicci, S., Casini, S., Connès, C., Corgnati, L. P., Costanza, L., Coudray, S., Cristofori, S., Di Mento, R., Doronzo, B., Dumas, D., Fattorini, M., Femiano, R., Fratini, S., Galgani, F., Galli, T., Gozzini, B., Gramoullé, A., Grassini, I., Griffa, A., Guizien, K., Guérin, C. A., Iozzelli, M., Lapucci, C., Lenoble, V., Maltese, S., Mario, S., Mazoyer, C., Mengoni, A., Menonna, V., Molcard, A., Oliva, M., Ortolani, A., Ourmières, Y., Padrón, M., Piermarini, R., Pretti, C., Romanelli, G., Ruberti, G., Scarpato, A., Sciascia, R., Silvestri, C., Taddei, S., Ugolini, A., Vanneste, H., Vannucchi, V., and Xu, D.
- Published
- 2021
5. Guidelines on how to sync your High Frequency (HF) radar data with the European HF Radar node (Version1.2)
- Author
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Reyes, E., Rotllán-García, P., Rubio, A., Corgnati, L., Mader, J., and Mantovani, C.
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Physical oceanography::Currents [Parameter Discipline] ,NetCDF ,HF Radar ,Data archival/stewardship/curation [Data Management Practices] ,Data exchange [Data Management Practices] - Abstract
This document is a step-by-step guide to start transferring HF radar (HFR) data from your network to the EU HFR node . The EU HFR node acts as the focal point for the European HFR data providers, implementing the HF radar data flow from the data providers to the distribution platforms ( Copernicus Marine Service , EMODnet-Phys and SeaDataNet ). Published Refereed Current 14.A Surface currents TRL 9 Actual system "mission proven" through successful mission operations (ground or space) Best Practice Standard Operating Procedure
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- 2020
6. Product User Manual for In Situ TAC products INSITU_GLO_UV_NRT_OBSERVATIONS_013_048. Issue 2.1
- Author
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Verbrugge, N., Etienne, H., Boone, Christine, Mader, J., Corgnati, L., Mantovani, C., Reyes, E., Rubio, A., Rotllán, P., Asensio, J.L., and Carval, T.
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Physical oceanography [Parameter Discipline] ,Drifters ,Radar ,Argo ,Parameter Discipline::Physical oceanography ,Datasets ,Data acquisition [Data Management Practices] ,Instrument Type Vocabulary::radar altimeters ,Data Management Practices::Data acquisition ,radar altimeters [Instrument Type Vocabulary] - Abstract
This Product User Manual describes the INSITU_GLO_UV_NRT_OBSERVATIONS_013_048 product distributed by the Copernicus Marine Service In Situ Thematic Assembly Centre (CMEMS INS-TAC): how it is built, what is the content, what data services are available to access them, and how to use the files. This product concerns four real-time datasets dedicated to near-surface currents measurements coming from two platform categories (Lagrangian surface drifters and High Frequency radars): ● drifter: near-surface zonal and meridional raw velocities measured by drifting buoys, wind & wind stress components, quality flags and metadada. These surface observations are part of the DBCP’s Global Drifter Program (see Table 1) ● drifter_filt: near-surface zonal and meridional velocities and 3-day filtered (with a Lanczos filter) velocities measured by drifting buoys. All the platforms are gathered together and concatenated in concatenated daily files. ● radar_total: near-surface zonal and meridional raw velocities measured by High Frequency radars (HFR), standard deviation of near-surface zonal and meridional raw velocities, Geometrical Dilution of Precision (GDOP), quality flags and metadata. These surface observations are part of the European HF radar Network (see Mader et al, 2017 and Corgnati et al., 2018) ● radar_radial: near-surface zonal and meridional components of raw radial velocities measured by HFRs, magnitude and direction of near-surface zonal and meridional components of raw radial velocities (measured in the radial directions covered by each of the HFR stations), standard deviation of near-surface zonal and meridional components of raw radial velocities, quality flags and metadata. These surface observations are part of the European HF radar Network (see Mader et al, 2017 and Corgnati et al., 2018) ● Argo: ocean currents derived from the original trajectory data from Argo GDAC (Global Data Assembly Center). Deep current is calculated from floats drift at parking depth, surface current is calculated from float surface drift. The INS-TAC aims at providing a research and operational framework to develop and deliver in situ observations and derived products based on such observations, to address progressively global (GLO) but also regional needs either for monitoring, modelling or downstream service development. Published Refereed Current 14.A Surface currents TRL 9 Actual system "mission proven" through successful mission operations (ground or space) Manual (incl. handbook, guide, cookbook etc)
- Published
- 2020
7. Report on final assessment of methodological improvements and testing
- Author
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Griffa A., Horstmann J., Mader J., Rubio A., Berta M., Orfila A., Axell L., Caballero A., Charria G., Corgnati L., De Mey P., Fredj E., Hernandez-Carrasco I., Jordà G., Manso I., Mantovani C., Quentin C., Reyes E., Rodriguez JG., and Solabarrieta L.
- Subjects
Quality Control ,High Frequency Radar ,methodology ,interoperability ,data management ,installation ,ocean ,current ,HFR - Abstract
Deliverable D3.4 is the second and final deliverable of Task 3.2, where a final assessment and testing of all the new developed methodologies related to HF radar data is provided. An impressive suite of new tools is presented, and their impact on the use of HF radars is discussed. HF radars are today a vital and growing part of the observing system in Europe, and Task 3,2, have greatly contributed to this growth through methodological development. The work has been performed in synergy with other WPs, in particular WP4 for testing in specific areas, and WP5 for the elaboration of interoperability standards. Scientific collaborations have included a number of international scientists and institutions also outside the original JERICO-NEXT consortium, Testing has been carried out using data from several installations in various European seas and oceans, including the German Bight, the Bay of Biscay, the West Med, the Adriatic Sea and the Swedish coasts. The developments focus on the following three main aspects, mirroring the three subtasks in Task 3.2: 1) scientific basis for quality control and interoperability standards; 2) methods to optimize installation planning; 3) methods for advanced analyses to be used in practical applications.1.The quality of current retrievals has been investigated, and methods to improve their QC have been developed and tested. A focused scientific investigation has been performed on how to quantify accuracy in the important and challenging case of high current sub-grid variability. The approach, tested in the German Bight, provides general methodological indications that can be applied to different situations. Also, scientific support has been provided to the interoperability effort carried out in the framework of WP5. Improved recommendations for European QC have been investigated thanks to an international collaboration, providing the basis for the results in the WP5 deliverable D5.14. 2) Methods to guide the design of HF radar networks have been completed. A cost benefit analysis is made available taking into account the geographical distribution of the requirements and the geographical capabilities of the existing and potential HF radar network. It allows the prioritization of potential new platforms considering their respective contribution into the overall impact of the HF Radar network. As a demonstrator, different scenarios have been assessed for the development of long-range HF Radar network in the Bay of Biscay and north-western Iberian Peninsula. An additional tool has been introduced for considering the variability of the ocean processes at the scale resolved by the targeted observing platform. 3) A number of new products have been implemented for the analyses of HF radar data and their use in practical applications. Methods for blending HF radar data with water column information from ADCP and glider data have been implemented and tested, providing guidance for important future applications toward the integration of different observing system components. Various gap filling methods have been tested and a new one implemented, in order to ensure smooth trajectory computations for transport applications. Innovative flow characterization methods for biological applications have been explored. They include Lagrangian methods to quantify flow transport and retention, and their impact on phytoplankton or larval transport and fishery management, as well as a new class of indexes of small scale divergence and vertical velocities with potential ecosystem impact. Finally, two different approaches to improve transport and flow forecasting using HF radar data have been assessed.
- Published
- 2019
8. Rete radar transfrontaliera
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Mantovani C., Corgnati L., Brandini C., Costanza L., Taddei S., Guerin C-A., Gramouille A., and Dumas D.
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velocity ,High Frequency Radar ,surface ,ocean ,current ,HFR - Abstract
Il presente documento descrive la rete radar transfrontaliera implementata nell'ambito del progetto IMPACT.
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- 2019
9. Report on Best Practice in the implementation and use of new systems in JERICO-RI. Part 1: HF-radar systems
- Author
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Horstmann J., Corgnati L., Mantovani C., Quentin C., Reyes E., Rubio A., Mader J., and Asensio JL.
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High Frequency Radar ,ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS ,ComputerApplications_COMPUTERSINOTHERSYSTEMS ,HFR ,Best Practice - Abstract
Best Practice in the implementation and use of HF-radar systems
- Published
- 2019
10. SeaDataNet data management protocols for HF Radar data. WP9 - Deliverable D9.12. Version 1.6
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Corgnati, L., Mantovani, C., Novellino, A., Jousset, S., Cramer, R.N., and Thijsse, P.
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Data quality control [Data Management Practices] ,Parameter Discipline::Physical oceanography::Currents ,Physical oceanography::Currents [Parameter Discipline] ,Data Management Practices::Metadata management ,HF Radar ,Metadata management [Data Management Practices] ,Data Management Practices::Data quality control - Abstract
This document specifies the QC standard procedures, the standard interoperable data and metadata format and the derived CDI metadata format for historical radial and total velocity data measured by HF Radars. These standard procedures and formats are necessary for the ingestion of historical HF Radar current data into SDN catalogues. Published Refereed Current 14.A TRL 9 Actual system "mission proven" through successful mission operations (ground or space) Manual (incl. handbook, guide, cookbook etc) Standard Operating Procedure
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- 2019
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11. SeaDataNet data management protocols for HF Radar data
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Corgnati L., Mantovani C., Novellino A., Jousset S., Cramer RN., and Thijsse P.
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Quality Control ,velocity ,metadata ,High Frequency Radar ,standard ,interoperability ,Common Data Index ,radial ,ocean ,current ,HFR ,SDN ,SeaDataNet ,CDI ,total - Abstract
This document specifies the QC standard procedures, the standard interoperable data and metadata format and the derived CDI metadata format for historical radial and total velocity data measured by HF Radars. These standard procedures and formats are necessary for the ingestion of historical HF Radar current data into SDN catalogues.
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- 2019
12. Copernicus Marine Service Ocean state report, Issue 3 Introduction
- Author
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von Schuckmann, K., Le Traon, P. Y., Smith, N., Pascual, A., Djavidnia, S., Gattuso, J. P., Gregoire, M., Nolan, G., Aaboe, S., Aguiar, E., Fanjul, E. A., Alvera-Azcarate, A., Aouf, L., Barciela, R., Behrens, A., Rivas, M. B., Ismail, S. B., Bentamy, A., Borgini, M., Brando, V. E., Bensoussan, N., Blauw, A., Bryere, P., Nardelli, B. B., Caballero, A., Yumruktepe, V. C., Cebrian, E., Chiggiato, J., Clementi, E., Corgnati, L., de Alfonso, M., Collar, A. D., Deshayes, J., Di Lorenzo, E., Dominici, J. M., Dupouy, Cécile, Drevillon, M., Echevin, Vincent, Eleveld, M., Enserink, L., Sotillo, M. G., Garnesson, P., Garrabou, J., Garric, G., Gasparin, F., Gayer, G., Gohin, F., Grandi, A., Griffa, A., Gourrion, J., Hendricks, S., Heuze, C., Holland, E., Iovino, D., Juza, M., Kersting, D. K., Kipson, S., Kizilkaya, Z., Korres, G., Kouts, M., Lagemaa, P., Lavergne, T., Lavigne, H., Ledoux, J. B., Legeais, J. F., Lehodey, P., Linares, C., Liu, Y., Mader, J., Maljutenko, I., Mangin, A., Manso-Narvarte, I., Mantovani, C., Markager, S., Mason, E., Mignot, A., Menna, M., Monier, M., Mourre, B., Muller, M., Nielsen, J. W., Notarstefano, G., Ocana, O., Patti, B., Payne, M. R., Peirache, M., Pardo, S., Perez Gomez, B., Pisano, A., Perruche, C., Peterson, K. A., Pujol, M. I., Raudsepp, U., Ravdas, M., Raj, R. P., Renshaw, R., Reyes, E., Ricker, R., Rubio, A., Sammartino, M., Santoleri, R., Sathyendranath, S., Schroeder, K., She, J., Sparnocchia, S., Staneva, J., Stoffelen, A., Szekely, T., Tilstone, G. H., Tinker, J., Tintore, J., Tranchant, B., Uiboupin, R., Van der Zande, D., Wood, R., Zabala, M., Zacharioudaki, A., Zuberer, F., and Zuo, H.
- Published
- 2019
13. Integrazione e interoperabilità dati radar
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Mantovani C., Corgnati L., Brandini C., Costanza L., Taddei S, Guerin C-A., Quentin C., Gramouille A., and Dumas D.
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velocity ,data interoperability ,High Frequency Radar ,surface ,data management ,ocean ,current ,HFR - Abstract
l presente documento illustra la strategia che verrà adottata nel progetto IMPACT per rendere interoperabili i dati acquisiti con tecnologia radar HF relativamente alla misura delle correnti marine superficiali, e per integrare i dataset prodotti nell'arco della durata del progetto dai partner coinvolti in questa attività e che possiedono e gestiscono reti di radar HF, ovvero ISMAR-CNR, Consorzio LaMMA e Università di Tolone. La descrizione della rete radar transfrontaliera che dà origine ai dati in oggetto e alcuni cenni sulla tecnologia radar HF sono riportati nel prodotto 2.1.1 di IMPACT. Il tipo di dato è una mappa di vettori 2- dimensionale (vettori "totali") su griglia rettangolare con risoluzione spaziale tipica che varia tra 1,5 e 3 km e risoluzione temporale tipica di 1h. I dati rilevati da High Frequency Radar (HFR), unica tecnologia di telerilevamento da costa che consente la mappatura di campi di correnti marine su ampie aree con un'elevata risoluzione spaziale e temporale, sono applicati in molti settori come la ricerca oceanografica e sull'ambiente marino, la sicurezza, la gestione costiera, la pesca, la navigazione e l'energia rinnovabile (Paduane Washburn, 2013, Rubio et al., 2017, Corgnati et al., 2018, Sciascia et al., 2019). Tali dati inoltre, essendo stati identificati come una tecnologia emergente nell'ambito del Global Ocean Observation System, saranno sistematicamente assimilati dai modelli numerici marini per la valutazione e la validazione delle previsioni.
- Published
- 2019
14. Recommendation Report 2 on improved common procedures for HFR QC analysis
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Corgnati L., Mantovani C., Novellino A., Rubio A., Mader J., Reyes E., Griffa A., Asensio JL., Gorringe P., Quentin C., Breitbach G., and Widera J.
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Quality Control ,velocity ,Near Real Time ,NRT ,metadata ,High Frequency Radar ,standard ,interoperability ,ocean ,current ,radial ,manual ,HFR ,data model ,data management ,total - Abstract
Recommendation Report 2 on improved common procedures for HFR QC analysis, including recommended common metadata and data model for HFR current data for HFR data implementation in European marine data infrastructures
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- 2018
15. Recommendation Report 1 for HFR data implementation in European marine data infrastructures
- Author
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Corgnati L., Mantovani C., Novellino A., Rubio A., Mader J., Reyes E., Griffa A., Asensio JL., Gorringe P., Quentin C., and Breitbach G.
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data model ,velocity ,metadata ,High Frequency Radar ,data management ,ocean ,current ,radial ,total ,HFR - Abstract
Recommendation Report 1 for HFR data implementation in European marine data infrastructures, including recommended common metadata and data model for HFR
- Published
- 2017
16. Report on first methodological improvements on retrieval algorithms and HF radar network design
- Author
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Corgnati L., Horstmann J., Mader J., Griffa A., Charria G., Cosoli S., Helzel T., Mantovani C., Petersen L., Reyes E., Roarty H., Rubio A., Seeman J., and Updyke T.
- Subjects
Quality Control ,High Frequency Radar ,data management ,HFR - Abstract
Report on first methodological improvements on retrieval algorithms and HF radar network design. Results obtained to date in Subtasks 3.2.1-3.2.2 will provide first recommendations on the implementation of improved techniques for HF radar systems (M24)
- Published
- 2017
17. The European HFR inventory
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Mader J., Rubio A., Asensio J.L., Novellino A., Alba M., Corgnati L., Mantovani C., Griffa A., Gorringe P., and Fernandez V.
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inventory ,Europe ,EuroGOOS ,High Frequency Radar ,HFR - Abstract
The inventory of the different HF radar systems operating in Europe has been gathered thanks to the survey launched by the EuroGOOS HFR Task Team, in the framework of INCREASE and JERICO-NEXT projects. This publication summarizes the main results of the European HF radar survey. EuroGOOS HFR Task Team will keep it as living document to be updated each time new information concerning existing or future systems is made available.
- Published
- 2016
18. PREPARED Present and past flow regime. On contourite drifts west of Spitsbergen
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Lucchi R., Kovacevic V., Aliani S., Caburlotto A., Celussi M., Corgnati L., Cosoli S., Deponte D., Ersdal E.A., Fredriksson S., Goszczko I., Husum K., Ingrosso G., Laberg J.S., cka M., Langone L., Mansutti P., Mezgec K., Morigi C., Ponomarenko E., Realdon G., Relitti F., Robijn A., Skogseth R., and Tirelli V.
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Spitsbergen ,Svalbard ,drift ,PREPARED ,contourite - Abstract
Rapporto tecnico della campagna oceanografica PREPARED 2014 nell'ambito del progetto EU-H2020 EuroFleets 2
- Published
- 2014
19. The RITMARE coastal radar network and applications to monitor marine transport infrastructures
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Carrara P., Corgnati L., Cosoli S., Griffa A., Kalampokis A., Mantovani C., Oggioni A., Pepe M., Raffa F., Serafino F., Uttieri M., and Zambianchi E.
- Subjects
Wave radar ,sea state monitoring ,ComputerApplications_COMPUTERSINOTHERSYSTEMS - Abstract
Coastal radars provide information on the environmental state of oceans, namely maps of surface currents at time intervals of the order of one hour with spatial coverage of the order of several km, depending on the transmission frequency. The observations are of crucial importance for monitoring ports and ship tracks close to the coast, providing support for safe navigation in densely operated areas and fast response in case of accidents at sea, such as oil spill or search and rescue. Besides these applications, coastal radar observations provide fundamental support in MPAs surveillance, connectivity and marine population circulation. In the framework of the Italian RITMARE flagship project coordinated by CNR (Consiglio Nazionale delle Ricerche), a coastal radar network has been designed and implemented with a number of innovative characteristics. The network includes both HF and X-band radars, allowing coverage of wide areas with different spatial and temporal resolutions. HF radars cover up to 80 km with a spatial resolution ranging between 1 and 5 km, while X-band radars provide 5 km coverage with a spatial resolution of 10 m. Joining these two capabilities, the RITMARE coastal radar network enables both a highly effective coverage of wide coastal areas and integrated monitoring of different phenomena, thus allowing the collection of current and wave parameters and detection of bathymetries of both open sea and coastal areas. A dedicated action to foster interoperability among data providers has been undertaken within RITMARE; an IT framework is under development to provide software tools for data collection and data sharing. It suggests standard, data format definitions, Quality Control strategies, data management and dissemination policies. In particular, the implementation of tools exploits both standards of OGC (Open Geospatial Consortium) and web services offered to manage, access and deliver geospatial data. Radar data produced in RITMARE by the coastal radar network represent a challenge to the nowadays definition of OGC web services: the network will suggest and test solutions.
- Published
- 2014
20. Toward an integrated HF radar network in the Mediterranean Sea to improve search and rescue and oil spill response: the TOSCA project experience
- Author
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Bellomo, L., primary, Griffa, A., additional, Cosoli, S., additional, Falco, P., additional, Gerin, R., additional, Iermano, I., additional, Kalampokis, A., additional, Kokkini, Z., additional, Lana, A., additional, Magaldi, M.G., additional, Mamoutos, I., additional, Mantovani, C., additional, Marmain, J., additional, Potiris, E., additional, Sayol, J.M., additional, Barbin, Y., additional, Berta, M., additional, Borghini, M., additional, Bussani, A., additional, Corgnati, L., additional, Dagneaux, Q., additional, Gaggelli, J., additional, Guterman, P., additional, Mallarino, D., additional, Mazzoldi, A., additional, Molcard, A., additional, Orfila, A., additional, Poulain, P.-M., additional, Quentin, C., additional, Tintoré, J., additional, Uttieri, M., additional, Vetrano, A., additional, Zambianchi, E., additional, and Zervakis, V., additional
- Published
- 2015
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- View/download PDF
21. EARLY FOREST FIRES DETECTION: SMOKE IDENTIFICATION THROUGH INNOVATIVE IMAGE PROCESSING USING COMMERCIAL SENSORS
- Author
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Losso, Andrea, Corgnati, L, and Perona, Giovanni Emilio
- Published
- 2009
22. ROSA: The Italian Space Agency GPS Radio Occultation Receiver. Signal Tracking Characteristics and Terrestrial Measurement Campaign
- Author
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Notarpietro, R., primary, Zin, A., additional, Perona, G., additional, Corgnati, L., additional, and Gabella, M., additional
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23. Safety in forest fire fighting action: a new radiometric model to evaluate the safety distance for firemen working with hand-operated systems
- Author
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Bertoldo, S., primary, Corgnati, L., additional, Losso, A., additional, and Perona, G., additional
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- 2012
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24. SIRIO: an integrated forest fire monitoring, detection and decision support system - performance and results of the installation in Sanremo (Italy)
- Author
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Losso, A., primary, Corgnati, L., additional, Bertoldo, S., additional, Allegretti, M., additional, Notarpietro, R., additional, and Perona, G., additional
- Published
- 2012
- Full Text
- View/download PDF
25. SIRIO high performance decision support system for wildfire fighting in alpine regions: an integrated system for risk forecasting and monitoring
- Author
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Corgnati, L., primary, Losso, A., additional, and Perona, G., additional
- Published
- 2010
- Full Text
- View/download PDF
26. Innovative image geo-referencing tool for decision support in wildfire fighting
- Author
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Losso, A., primary, Corgnati, L., additional, and Perona, G., additional
- Published
- 2010
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27. FIREcast system – previsional fire danger index computation system for alpine regions
- Author
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Corgnati, L., primary, Gabella, M., additional, and Perona, G., additional
- Published
- 2008
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28. TRMM-derived Range-adjustment of Ground-based Radars in two Mediterranean Countries
- Author
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Gabella, M., primary, Corgnati, L., additional, Perona, G., additional, and Morin, E., additional
- Published
- 2006
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29. ROSA: The Italian Space Agency GPS Radio Occultation Receiver. Signal Tracking Characteristics and Terrestrial Measurement Campaign.
- Author
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Foelsche, Ulrich, Kirchengast, Gottfried, Steiner, Andrea, Notarpietro, R., Zin, A., Perona, G., Corgnati, L., and Gabella, M.
- Abstract
In the framework of an Italian Space Agency (ASI) contract, Alenia Spazio — Laben developed a new GPS radio occultation receiver: the ROSA receiver. It will manage both "rise" and "set" occultation events, tracking signals coming from the stratosphere in closed-loop and switching to the open-loop when they emerge from the troposphere. It is well known that the open-loop signal tracking needs a good Excess-Doppler prediction, and that it has to be evaluated in advance (and in quasi real time) by the occultation on-board software. The adopted prediction strategy is a simplified and optimized version of the technique suggested by Sokolovskiy (2001). This work provides the results of the validation of this technique, carried on through comparisons with about 200 Excess-Doppler observations collected by the CHAMP Radio Occultation GPS receiver during the winter season 2002/2003 above Europe. Some insights about the prediction of the end occultation time for setting events (or start occultation time for rising events) are also given. The strategy implemented by the on-board ROSA occultation manager for the open-loop tracking is quickly introduced. Also a mountain top measurement campaign with the ROSA breadboard receiver is discussed. It is planned for 2006. This experiment is encouraged by ASI in order to test and to validate the ROSA tracking capabilities and the algorithms necessary for the extraction of the GPS occultation observables from raw data. [ABSTRACT FROM AUTHOR]
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- 2006
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30. Un nuovo modello radiometrico per l'identificazione di hot spot di incendi boschivi e come strumento di valutazione delle performance dei sensori in ambienti ad orografiacomplessa
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Silvano Bertoldo, Corgnati, L., and Perona, Giovanni Emilio
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radiometria ,monitoraggio ambientale ,hot spot ,incendi boschivi ,termocamera
31. Sindbad: A new operational service for a safer leisure and boating navigation
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Ottaviani, E., Gjeci, N., Novellino, A., D Angelo, P., Alba, M., Brotto, P., Francesco De Leo, Ferrari, F., Besio, G., Mazzino, A., Figari, M., Zaccone, R., Corgnati, L., Mantovani, C., Berta, M., and Magaldi, M.
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Navigation, Safety, Weather routing ,boating ,HF radar ,service ,Safety ,Navigation ,Weather routing - Abstract
The SINDBAD- Leisure and Boating Safety Navigation - project goal is the development of an advanced operational service to support navigation in a specific area. The first prototype covers the Ligurian Sea (a very busy touristic area in the North Mediterranean Sea) It develops an ICT Service Infrastructure to provide innovative intelligent automation functions and to develop customized services, accessible by your mobile device, for conducting a boat and avoiding any kind of risk ensuring the best degree of comfort.
32. Coastal high-frequency radars in the Mediterranean - Part 2: Applications in support of science priorities and societal needs
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Emma Reyes, Eva Aguiar, Michele Bendoni, Maristella Berta, Carlo Brandini, Alejandro Cáceres-Euse, Fulvio Capodici, Vanessa Cardin, Daniela Cianelli, Giuseppe Ciraolo, Lorenzo Corgnati, Vlado Dadić, Bartolomeo Doronzo, Aldo Drago, Dylan Dumas, Pierpaolo Falco, Maria Fattorini, Maria J. Fernandes, Adam Gauci, Roberto Gómez, Annalisa Griffa, Charles-Antoine Guérin, Ismael Hernández-Carrasco, Jaime Hernández-Lasheras, Matjaž Ličer, Pablo Lorente, Marcello G. Magaldi, Carlo Mantovani, Hrvoje Mihanović, Anne Molcard, Baptiste Mourre, Adèle Révelard, Catalina Reyes-Suárez, Simona Saviano, Roberta Sciascia, Stefano Taddei, Joaquín Tintoré, Yaron Toledo, Marco Uttieri, Ivica Vilibić, Enrico Zambianchi, Alejandro Orfila, 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), European Commission, Fundación 'la Caixa', Reyes E., Aguiar E., Bendoni M., Berta M., Brandini C., Caceres-Euse A., Capodici F., Cardin V., Cianelli D., Ciraolo G., Corgnati L., Dadic V., Doronzo B., Drago A., Dumas D., Falco P., Fattorini M., Fernandes M.J., Gauci A., Gomez R., Griffa A., Guerin C.-A., Hernandez-Carrasco I., Hernandez-Lasheras J., Licer M., Lorente P., Magaldi M.G., Mantovani C., Mihanovic H., Molcard A., Mourre B., Revelard A., Reyes-Suarez C., Saviano S., Sciascia R., Taddei S., Tintore J., Toledo Y., Uttieri M., Vilibic I., Zambianchi E., and Orfila A.
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high-frequency radars ,Mediterranean ,review ,Intracoastal waterways -- Mediterranean region ,high-frequency radar (HFR), sea surface currents, ocean waves ,Settore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologia ,Maritime law ,United Nations Convention on the Law of the Sea (1982 December 10) ,Green New Deal -- European Union countries ,General Medicine ,Remote sensing ,Environmental monitoring -- Mediterranean region ,Geophysics ,[SDU]Sciences of the Universe [physics] ,Coastal zone management -- Mediterranean region ,Coastal ecosystem health ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography - Abstract
The Mediterranean Sea is a prominent climate-change hot spot, with many socioeconomically vital coastal areas being the most vulnerable targets for maritime safety, diverse met-ocean hazards and marine pollution. Providing an unprecedented spatial and temporal resolution at wide coastal areas, high-frequency radars (HFRs) have been steadily gaining recognition as an effective land-based remote sensing technology for continuous monitoring of the surface circulation, increasingly waves and occasionally winds. HFR measurements have boosted the thorough scientific knowledge of coastal processes, also fostering a broad range of applications, which has promoted their integration in coastal ocean observing systems worldwide, with more than half of the European sites located in the Mediterranean coastal areas. In this work, we present a review of existing HFR data multidisciplinary science-based applications in the Mediterranean Sea, primarily focused on meeting end-user and science-driven requirements, addressing regional challenges in three main topics: (i) maritime safety, (ii) extreme hazards and (iii) environmental transport process. Additionally, the HFR observing and monitoring regional capabilities in the Mediterranean coastal areas required to underpin the underlying science and the further development of applications are also analyzed. The outcome of this assessment has allowed us to provide a set of recommendations for future improvement prospects to maximize the contribution to extending science-based HFR products into societally relevant downstream services to support blue growth in the Mediterranean coastal areas, helping to meet the UN's Decade of Ocean Science for Sustainable Development and the EU's Green Deal goals., peer-reviewed
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- 2022
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33. Coastal high-frequency radars in the Mediterranean – Part 1: Status of operations and a framework for future development
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Pablo Lorente, Eva Aguiar, Michele Bendoni, Maristella Berta, Carlo Brandini, Alejandro Cáceres-Euse, Fulvio Capodici, Daniela Cianelli, Giuseppe Ciraolo, Lorenzo Corgnati, Vlado Dadić, Bartolomeo Doronzo, Aldo Drago, Dylan Dumas, Pierpaolo Falco, Maria Fattorini, Adam Gauci, Roberto Gómez, Annalisa Griffa, Charles-Antoine Guérin, Ismael Hernández-Carrasco, Jaime Hernández-Lasheras, Matjaž Ličer, Marcello G. Magaldi, Carlo Mantovani, Hrvoje Mihanović, Anne Molcard, Baptiste Mourre, Alejandro Orfila, Adèle Révelard, Emma Reyes, Jorge Sánchez, Simona Saviano, Roberta Sciascia, Stefano Taddei, Joaquín Tintoré, Yaron Toledo, Laura Ursella, Marco Uttieri, Ivica Vilibić, Enrico Zambianchi, Vanessa Cardin, 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), European Commission, Regione Campania, Ministero dell'Istruzione, dell'Università e della Ricerca, Lorente P., Aguiar E., Bendoni M., Berta M., Brandini C., Caceres-Euse A., Capodici F., Cianelli D., Ciraolo G., Corgnati L., Dadic V., Doronzo B., Drago A., Dumas D., Falco P., Fattorini M., Gauci A., Gomez R., Griffa A., Guerin C.-A., Hernandez-Carrasco I., Hernandez-Lasheras J., Licer M., Magaldi M.G., Mantovani C., Mihanovic H., Molcard A., Mourre B., Orfila A., Revelard A., Reyes E., Sanchez J., Saviano S., Sciascia R., Taddei S., Tintore J., Toledo Y., Ursella L., Uttieri M., Vilibic I., Zambianchi E., and Cardin V.
- Subjects
high-frequency radars ,Mediterranean ,review ,Geophysics ,high-frequency radar (HFR), sea surface currents, ocean waves ,[SDU]Sciences of the Universe [physics] ,Settore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologia ,General Medicine ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography - Abstract
Due to the semi-enclosed nature of the Mediterranean Sea, natural disasters and anthropogenic activities impose stronger pressures on its coastal ecosystems than in any other sea of the world. With the aim of responding adequately to science priorities and societal challenges, littoral waters must be effectively monitored with high-frequency radar (HFR) systems. This land-based remote sensing technology can provide, in near-real time, fine-resolution maps of the surface circulation over broad coastal areas, along with reliable directional wave and wind information. The main goal of this work is to showcase the current status of the Mediterranean HFR network and the future roadmap for orchestrated actions. Ongoing collaborative efforts and recent progress of this regional alliance are not only described but also connected with other European initiatives and global frameworks, highlighting the advantages of this cost-effective instrument for the multi-parameter monitoring of the sea state. Coordinated endeavors between HFR operators from different multi-disciplinary institutions are mandatory to reach a mature stage at both national and regional levels, striving to do the following: (i) harmonize deployment and maintenance practices; (ii) standardize data, metadata, and quality control procedures; (iii) centralize data management, visualization, and access platforms; and (iv) develop practical applications of societal benefit that can be used for strategic planning and informed decision-making in the Mediterranean marine environment. Such fit-for-purpose applications can serve for search and rescue operations, safe vessel navigation, tracking of marine pollutants, the monitoring of extreme events, the investigation of transport processes, and the connectivity between offshore waters and coastal ecosystems. Finally, future prospects within the Mediterranean framework are discussed along with a wealth of socioeconomic, technical, and scientific challenges to be faced during the implementation of this integrated HFR regional network., This study has been partially developed in the framework of the Interreg MED Strategic Project SHAREMED, co-financed by the European Regional Development Fund under the funding program Interreg MED 2014–2020. Website: https://sharemed.interreg-med.eu/ (last access: 31 March 2022). We are also grateful for the partial support of the (i) the project PO FEAMP 2014/2020 (Misura 2.51) funded by Regione Campania (Italy), (ii) the 2017 PRIN project EMME (Exploring the fate of Mediterranean microplastic: from distribution pathways to biological effects) funded by the Italian Ministry for Research (grant agreement no. 2017WERYZP), and (iii) the CMEMS-INSTAC phase II, which provides the context of the activities for HFR data harmonization, standardization, and distribution. Collaborative discussion on data management harmonization at the European level has also been carried out thanks to the contribution of the projects INCREASE (CMEMS Service Evolution Call for Tenders 21-SE-CALL1) and SeaDataCloud (EU-H2020 GA no. 730960).
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- 2022
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34. Copernicus Marine Service Ocean State Report, Issue 4
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Karina von Schuckmann, Pierre-Yves Le Traon, Neville Smith, Ananda Pascual, Samuel Djavidnia, Jean-Pierre Gattuso, Marilaure Grégoire, Glenn Nolan, Signe Aaboe, Enrique Álvarez Fanjul, Lotfi Aouf, Roland Aznar, T. H. Badewien, Arno Behrens, Maristella Berta, Laurent Bertino, Jeremy Blackford, Giorgio Bolzon, Federica Borile, Marine Bretagnon, Robert J.W. Brewin, Donata Canu, Paola Cessi, Stefano Ciavatta, Bertrand Chapron, Thi Tuyet Trang Chau, Frédéric Chevallier, Boriana Chtirkova, Stefania Ciliberti, James R. Clark, Emanuela Clementi, Clément Combot, Eric Comerma, Anna Conchon, Giovanni Coppini, Lorenzo Corgnati, Gianpiero Cossarini, Sophie Cravatte, Marta de Alfonso, Clément de Boyer Montégut, Christian De Lera Fernández, Francisco Javier de los Santos, Anna Denvil-Sommer, Álvaro de Pascual Collar, Paulo Alonso Lourenco Dias Nunes, Valeria Di Biagio, Massimiliano Drudi, Owen Embury, Pierpaolo Falco, Odile Fanton d’Andon, Luis Ferrer, David Ford, H. Freund, Manuel García León, Marcos García Sotillo, José María García-Valdecasas, Philippe Garnesson, Gilles Garric, Florent Gasparin, Marion Gehlen, Ana Genua-Olmedo, Gerhard Geyer, Andrea Ghermandi, Simon A. Good, Jérôme Gourrion, Eric Greiner, Annalisa Griffa, Manuel González, Ismael Hernández-Carrasco, Stéphane Isoard, John J. Kennedy, Susan Kay, Anton Korosov, Kaari Laanemäe, Peter E. Land, Thomas Lavergne, Paolo Lazzari, Jean-François Legeais, Benedicte Lemieux, Bruno Levier, William Llovel, Vladyslav Lyubartsev, Vidar S. Lien, Leonardo Lima, Pablo Lorente, Julien Mader, Marcello G. Magaldi, Ilja Maljutenko, Antoine Mangin, Carlo Mantovani, Veselka Marinova, Simona Masina, Elena Mauri, J. Meyerjürgens, Alexandre Mignot, Robert McEwan, Carlos Mejia, Angélique Melet, Milena Menna, Benoît Meyssignac, Alexis Mouche, Baptiste Mourre, Malte Müller, Giulio Notarstefano, Alejandro Orfila, Silvia Pardo, Elisaveta Peneva, Begoña Pérez-Gómez, Coralie Perruche, Monika Peterlin, Pierre-Marie Poulain, Nadia Pinardi, Yves Quilfen, Urmas Raudsepp, Richard Renshaw, Adèle Révelard, Emma Reyes-Reyes, M. Ricker, Pablo Rodríguez-Rubio, Paz Rotllán, Eva Royo Gelabert, Anna Rubio, Inmaculada Ruiz-Parrado, Shubha Sathyendranath, Jun She, Cosimo Solidoro, Emil V. Stanev, Joanna Staneva, Andrea Storto, Jian Su, Tayebeh Tajalli Bakhsh, Gavin H. Tilstone, Joaquín Tintoré, Cristina Toledano, Jean Tournadre, Benoit Tranchant, Rivo Uiboupin, Arnaud Valcarcel, Nadezhda Valcheva, Nathalie Verbrugge, Mathieu Vrac, J.-O. Wolff, Enrico Zambianchi, O. Zielinski, Ann-Sofie Zinck, Serena Zunino, Fundação para a Ciência e a Tecnologia (Portugal), Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Institut Cartogràfic i Geològic de Catalunya, Laboratoire d'océanographie de Villefranche (LOV), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Universitat Politècnica de Catalunya. Laboratori d'Enginyeria Marítima, Universitat Politècnica de Catalunya. LIM/UPC - Laboratori d'Enginyeria Marítima, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), von Schuckmann K., Le Traon P.-Y., Smith N., Pascual A., Djavidnia S., Gattuso J.-P., Gregoire M., Nolan G., Aaboe S., Fanjul E.A., Aouf L., Aznar R., Badewien T.H., Behrens A., Berta M., Bertino L., Blackford J., Bolzon G., Borile F., Bretagnon M., Brewin R.J.W., Canu D., Cessi P., Ciavatta S., Chapron B., Trang Chau T.T., Chevallier F., Chtirkova B., Ciliberti S., Clark J.R., Clementi E., Combot C., Comerma E., Conchon A., Coppini G., Corgnati L., Cossarini G., Cravatte S., de Alfonso M., de Boyer Montegut C., De Lera Fernandez C., de los Santos F.J., Denvil-Sommer A., de Pascual Collar A., Dias Nunes P.A.L., Di Biagio V., Drudi M., Embury O., Falco P., d'Andon O.F., Ferrer L., Ford D., Freund H., Leon M.G., Sotillo M.G., Garcia-Valdecasas J.M., Garnesson P., Garric G., Gasparin F., Gehlen M., Genua-Olmedo A., Geyer G., Ghermandi A., Good S.A., Gourrion J., Greiner E., Griffa A., Gonzalez M., Hernandez-Carrasco I., Isoard S., Kennedy J.J., Kay S., Korosov A., Laanemae K., Land P.E., Lavergne T., Lazzari P., Legeais J.-F., Lemieux B., Levier B., Llovel W., Lyubartsev V., Lien V.S., Lima L., Lorente P., Mader J., Magaldi M.G., Mangin A., Maljutenko I., Mantovani C., Marinova V., Masina S., Mauri E., Meyerjurgens J., Mignot A., McEwan R., Mejia C., Melet A., Menna M., Meyssignac B., Mouche A., Mourre B., Muller M., Notarstefano G., Pardo S., Orfila A., Peneva E., Perez-Gomez B., Perruche C., Peterlin M., Poulain P.-M., Pinardi N., Quilfen Y., Raudsepp U., Renshaw R., Revelard A., Reyes-Reyes E., Ricker M., Rodriguez-Rubio P., Rotllan P., Gelabert E.R., Rubio A., Ruiz-Parrado I., Sathyendranath S., She J., Solidoro C., Stanev E.V., Staneva J., Storto A., Su J., Bakhsh T.T., Tilstone G.H., Tintore J., Toledano C., Tournadre J., Tranchant B., Uiboupin R., Valcarcel A., Valcheva N., Verbrugge N., Vrac M., Wolff J.-O., Zambianchi E., Zielinski O., and Zunino S.
- Subjects
010504 meteorology & atmospheric sciences ,media_common.quotation_subject ,[SDE.MCG]Environmental Sciences/Global Changes ,Public administration ,Oceanography ,01 natural sciences ,State (polity) ,Political science ,14. Life underwater ,CMEMS ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,ComputingMilieux_MISCELLANEOUS ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography ,0105 earth and related environmental sciences ,Copernicus ,media_common ,Service (business) ,[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia [Àrees temàtiques de la UPC] ,010505 oceanography ,Meteorologia marítima ,Marine meteorology--Europe ,[SDE.ES]Environmental Sciences/Environmental and Society ,13. Climate action ,Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes [Àrees temàtiques de la UPC] ,[SDE]Environmental Sciences ,Ocean state report, Copernicus Marine Service ,Environment policy - Abstract
Editors: Karina von Schuckmann; Pierre-Yves Le Traon.-- Review Editors: Neville Smith (Chair); Ananda Pascual; Samuel Djavidnia; Jean-Pierre Gattuso; Marilaure Grégoire; Glenn Nolan., The authors would like to thank the Institut Cartogràfic i Geològic de Catalunya (ICGC) for providing data. Thanks are due to FCT/MCTES for the financial support to CESAM (UID/AMB/50017/2019), through national funds., Chapter 1: Introduction and the European Environment policy framework.-- CMEMS OSR4, Chapter 2: State, variability and change in the ocean.-- CMEMS OSR4, Chapter 3: Case studies.-- CMEMS OSR4, Chapter 4: Specific events 2018.
- Published
- 2020
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35. Looking inside the Ocean: Toward an Autonomous Imaging System for Monitoring Gelatinous Zooplankton.
- Author
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Corgnati L, Marini S, Mazzei L, Ottaviani E, Aliani S, Conversi A, and Griffa A
- Subjects
- Algorithms, Animals, Image Processing, Computer-Assisted instrumentation, Gelatin metabolism, Image Processing, Computer-Assisted methods, Oceans and Seas, Zooplankton physiology
- Abstract
Marine plankton abundance and dynamics in the open and interior ocean is still an unknown field. The knowledge of gelatinous zooplankton distribution is especially challenging, because this type of plankton has a very fragile structure and cannot be directly sampled using traditional net based techniques. To overcome this shortcoming, Computer Vision techniques can be successfully used for the automatic monitoring of this group.This paper presents the GUARD1 imaging system, a low-cost stand-alone instrument for underwater image acquisition and recognition of gelatinous zooplankton, and discusses the performance of three different methodologies, Tikhonov Regularization, Support Vector Machines and Genetic Programming, that have been compared in order to select the one to be run onboard the system for the automatic recognition of gelatinous zooplankton. The performance comparison results highlight the high accuracy of the three methods in gelatinous zooplankton identification, showing their good capability in robustly selecting relevant features. In particular, Genetic Programming technique achieves the same performances of the other two methods by using a smaller set of features, thus being the most efficient in avoiding computationally consuming preprocessing stages, that is a crucial requirement for running on an autonomous imaging system designed for long lasting deployments, like the GUARD1. The Genetic Programming algorithm has been installed onboard the system, that has been operationally tested in a two-months survey in the Ligurian Sea, providing satisfactory results in terms of monitoring and recognition performances., Competing Interests: The authors declare no conflict of interest. The founding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.
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- 2016
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36. Biodiversity conservation: an example of a multidisciplinary approach to marine dispersal.
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Aliani S, Berta M, Borghini M, Carlson D, Conversi A, Corgnati L, Griffa A, Magaldi MG, Mantovani C, Marini S, Mazzei L, Suaria G, and Vetrano A
- Abstract
The general aim of this paper is to present a possible multidisciplinary approach to the problem of connectivity among marine protected areas (MPAs) describing some of the mechanisms and vectors that control the dispersal of propagules among spatially distributed marine communities of MPAs in the Southern Adriatic Sea. A joint approach is described that focuses on (a) measurements of surface water current and model data integrated with a dedicated software (LAVA, LAgrangian Variational Analysis), (b) measurements of rafting objects and their evaluation as an alternative way to species dispersal, and (c) a tool to automatically monitor propagules and plankton species in the water column. Studies on the dynamics of water currents demonstrated that the Gargano area has the potential to supply dispersal propagules to the Southern Adriatic both along the Italian coastline and offshore across the basin, thus providing important services to the dispersal processes and the connectivity routes among MPAs. The natural dispersion is however enhanced by floating objects, on which entire marine communities are living and travelling. The number of these objects has greatly increased with the introduction of human litter: in the Adriatic, man-made litter composes nowadays the majority (79 %) of all floating objects, with this corresponding to an almost fourfold increase in the abundance of floating objects since pre-industrial times. Such enhanced dispersion may benefit transmission of propagules from MPAs along biodiversity corridors, but may also enhance the arrival of invasive species. The direct observation of organisms can provide information on the species distribution and mobility. New technology (GUARD-1 system) has been developed to automatically identify spatial or temporal distributions of selected species in the water column by image analysis. The system has so far successfully detected blooms of ctenophores in the water column and is now being tested for identification of other zooplankton groups, such as copepods, as well as marine litter. This low-cost, long-lasting imaging system can be hosted on mobile devices such as drifters, which makes it very suitable for biological dispersal studies.
- Published
- 2015
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- View/download PDF
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