Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Silvia Falchetti"'
Autor:
Harm Greidanus, Marlene Alvarez, Torkild Eriksen, P. Argentieri, Tulay Çokacar, A. Pesaresi, Silvia Falchetti, Domenico Nappo, Fabio Mazzarella, Alfredo Alessandrini
Publikováno v:
TransNav: International Journal on Marine Navigation and Safety of Sea Transportation, Vol 7, Iss 2, Pp 185-192 (2013)
A system was set up to ingest automatic ship position reports (terrestrial and satellite AIS, LRIT) and fuse these into a Maritime Situational Picture, tracking the ships within an ocean basin-wide area of interest in real time. Trial runs were made
Externí odkaz:
https://doaj.org/article/0d99c805cddc42938f4636f87a77b96c
Autor:
Paolo Oddo, Silvia Falchetti, Salvatore Viola, Giuliana Pennucci, Andrea Storto, Ines Borrione, Giacomo Giorli, Elisa Cozzani, Aniello Russo, Cristina Tollefsen
Publikováno v:
The Journal of the Acoustical Society of America. 152(5)
Four different Marine Rapid Environmental Assessment (MREA) procedures are compared with a focus on underwater acoustic performance. Co-located oceanographic-acoustic data were collected during the summer of 2015 in the Northwestern Mediterranean in
A Neural network based observation operator for coupled ocean acoustic variational data assimilation
Publikováno v:
Monthly weather review 149 (2021): 1967–1985. doi:10.1175/MWR-D-20-0320.1
info:cnr-pdr/source/autori:Storto, Andrea; Magistris, Giovanni De; Falchetti, Silvia; Oddo, Paolo/titolo:A Neural network based observation operator for coupled ocean acoustic variational data assimilation/doi:10.1175%2FMWR-D-20-0320.1/rivista:Monthly weather review/anno:2021/pagina_da:1967/pagina_a:1985/intervallo_pagine:1967–1985/volume:149
info:cnr-pdr/source/autori:Storto, Andrea; Magistris, Giovanni De; Falchetti, Silvia; Oddo, Paolo/titolo:A Neural network based observation operator for coupled ocean acoustic variational data assimilation/doi:10.1175%2FMWR-D-20-0320.1/rivista:Monthly weather review/anno:2021/pagina_da:1967/pagina_a:1985/intervallo_pagine:1967–1985/volume:149
Variational data assimilation requires implementing the tangent-linear and adjoint (TA/AD) version of any operator. This intrinsically hampers the use of complicated observations.Here, we assess a new data-driven approach to assimilate acoustic under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::164f89fc3db5702197f1f8f655f95b63
http://www.scopus.com/record/display.url?eid=2-s2.0-85109199892&origin=inward
http://www.scopus.com/record/display.url?eid=2-s2.0-85109199892&origin=inward
Autor:
Silvia Falchetti, Alberto Alvarez
Publikováno v:
Journal of Marine Systems. 180:76-89
Data assimilation through an ensemble Kalman filter (EnKF) is not exempt from deficiencies, including the generation of long-range unphysical correlations that degrade its performance. The covariance localization technique has been proposed and used
Publikováno v:
Journal of geophysical research. Oceans
125 (2020). doi:10.1029/2019JC015636
info:cnr-pdr/source/autori:Storto, Andrea; Falchetti, Silvia; Oddo, Paolo; Jiang, Yong Min; Tesei, Alessandra/titolo:Assessing the Impact of Different Ocean Analysis Schemes on Oceanic and Underwater Acoustic Predictions/doi:10.1029%2F2019JC015636/rivista:Journal of geophysical research. Oceans (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:125
125 (2020). doi:10.1029/2019JC015636
info:cnr-pdr/source/autori:Storto, Andrea; Falchetti, Silvia; Oddo, Paolo; Jiang, Yong Min; Tesei, Alessandra/titolo:Assessing the Impact of Different Ocean Analysis Schemes on Oceanic and Underwater Acoustic Predictions/doi:10.1029%2F2019JC015636/rivista:Journal of geophysical research. Oceans (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:125
Assimilating oceanic observations into prediction systems is an advantageous approach for real-time ocean environment characterization. However, its benefits to underwater acoustic predictions are not trivial due to the nonlinearity and sensitivity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55738cb6dc2144e4a91391f39aeadab0
https://hdl.handle.net/11585/903775
https://hdl.handle.net/11585/903775
Autor:
Pietro Argentieri, Torkild Eriksen, Alfredo Alessandrini, Fabio Mazzarella, Tulay Cokacar, Harm Greidanus, A. Pesaresi, Silvia Falchetti, Marlene Alvarez, Domenico Nappo
Publikováno v:
TransNav: International Journal on Marine Navigation and Safety of Sea Transportation, Vol 7, Iss 2, Pp 185-192 (2013)
A system was set up to ingest automatic ship position reports (terrestrial and satellite Automatic Identification System (AIS), Long Range Identification and Tracking (LRIT)) and fuse these into a Maritime Situational Picture, tracking the ships with
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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We describe the physical and dynamical characteristics of a mesoscale anticyclonic eddy observed in August 2013 over the shelf-break region of the northeastern sector of the Ligurian Sea, between the northeastern edge of the Northern Current (NC) and
Publikováno v:
Continental Shelf Research. 30:226-238
A 1-D General Ocean Turbulence Model that includes the effects of sediment-induced stratification is shown to simulate the observed onshore and offshore migration of a nearshore sandbar. The only two free parameters of the model, the bed reference co
Publikováno v:
Coastal Engineering. 56:621-631
Novel laboratory experiments and numerical modelling have been performed to study the advection scales of suspended sediment in the swash zone. An experiment was designed specifically to measure only the sediment picked up seaward of the swash zone a
Publikováno v:
Journal of Fluid Mechanics. 610:43-67
The two-way effects of the time-varying suppression of turbulence by gradients in suspended sediment concentration have been investigated using a modified form of the Generalized Ocean Turbulence Model (GOTM). Field measurements of fluid velocities a