Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7308
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dc.contributor.authorallPignagnoli, L.; Institute of Marine Sciences, CNR, Bologna, Italy-
dc.contributor.authorallChierici, F.; Institute of Marine Sciences, CNR, Bologna, Italy-
dc.contributor.authorallFavali, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.authorallBeranzoli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.authorallEmbriaco, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.authorallMonna, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.authorallD’Oriano, F.; Institute of Marine Sciences, CNR, Bologna, Italy-
dc.contributor.authorallZitellini, N.; Institute of Marine Sciences, CNR, Bologna, Italy-
dc.date.accessioned2012-01-11T13:10:52Z-
dc.date.available2012-01-11T13:10:52Z-
dc.date.issued2011-11-
dc.identifier.urihttp://hdl.handle.net/2122/7308-
dc.description.abstractIn the framework of the EU project NEAREST, a new Tsunami Early Warning System (TEWS), able to operate in tsunami generation areas, was developed and installed in the Gulf of Cadiz. The TEWS is based on the abyssal station GEOSTAR, placed above a major tsunamigenic structure, and on three seismic centres of Portugal, Spain and Morocco. The core of the system is a tsunami detector installed onboard of GEOSTAR. The tsunami detector communicates with a surface buoy through a dual acoustic link. The buoy is connected to land stations via satellite link. The system was designed for near-field conditions and successfully operated from August 2007 to August 2008, 100 km SW of Cabo de Sao Vincente (Portugal). A new mission started on November 11th, 2009 in the same location. The tsunami detection is based either on pressure events either on seismic events. The bottom pressure data are analysed in real-time at the seafloor by a new tsunami detection algorithm, which can recognize tsunami waves as small as one centimetre. At the same time it was developed a new theoretical approach to account for tsunami generation in compressible water and in presence of a porous sediment. This model showed that hydro-acoustic waves, travelling much faster than the tsunami, are caused by the seafloor motion. These waves can propagate outside the generation area and are characterised by a modulation carrying valuable information on the seafloor motion, which can be recovered from their first arrival.en_US
dc.language.isoengen_US
dc.publisher.nameDTA-CNRen_US
dc.relation.ispartofMARINE RESEARCH AT CNRen_US
dc.relation.ispartofseriesspecial issue / DTA 06-2011 (2011)en_US
dc.subjectTsunami Detectionen_US
dc.subjectEarly Warningen_US
dc.subjectTsunami Generationen_US
dc.titleTsunami Early Warning System: Deep Sea Measurements in the Source Areaen_US
dc.typearticle-
dc.description.statusPublisheden_US
dc.type.QualityControlPeer-revieweden_US
dc.description.pagenumber1749-1758en_US
dc.subject.INGV05. General::05.08. Risk::05.08.01. Environmental risken_US
dc.source.commentaryon[1] E. Boschi, E. Guidoboni, G. Ferrari, G. Valensise, and P. Gasperini. Catalogue of the strong earthquakes in Italy from 461 BC to 1990. 1997. [2] NGDC Tsunami Catalog. web site: http://www.ngdc.noaa.gov/hazard/tsu db.shtml. 2009. [3] E.A. Okal, P.J. Alasset, O. Hyvernaud, and F. Schindele. The deficient T waves of tsunami earthquakes. Geophys. J. Int.l, 152(2):416–432, 2003. [4] C. Lomnitz and S. Nilsen-Hofseth. The indian ocean disaster: Tsunami physics and early warning dilemmas. EOS Trans. AGU, 86:65–70, 2005. [5] C. Meinig, S.E. Stalin, A.I. Nakamura, F. Gonzlez, , and H.G. Milburn. Technology Developments in Real-Time Tsunami Measuring, Monitoring and Forecasting. In Oceans 2005 MTS/IEEE, September 2005, Washington, D.C., 2005. [6] K. Kawaguchi, K. Hirata, T. Nishida, S. Obana, and H. Mikada. A new approach for mobile and expandable real time deep seafloor observation -Adaptable Observation System. IEEE Journal of Oceanic Engineering, 27:182–192, 2002. [7] A. Rudloff, J. Lauterjung, U. Muench, and S. Tinti. Preface ”The GITEWS Project (German-Indonesian Tsunami Early Warning System)”. Nat Haz. & Earth Systs Sciences, 9(4):1381–1382, 2009. [8] J.H. Filloux. Tsunami recorded on the open ocean floor. J. Phys. Oceanogr., 13:783–796, 1982. [9] F. Chierici, L. Pignagnoli, , and D. Embriaco. Modeling of the hydroacoustic signal and tsunami wave generated by seafloor motion including a porous seabed. J. Geophys. Res., 115:C03015, 2010. [10] N. Zitellini, E. Gr`acia, L. Matias, P. Terrinha, M.A. Abreu, G. De Alteriis, J.P. Henriet, J.J. Da˜nobeitia, D.G. Masson, T. Mulder, R. Ramella, L. Somoza, and S. Diez. The Quest for the Africa-Eurasia plate boundary West of the Strait of Gibraltar. EPSL, 208:13–50, 2009. [11] C. DeMets, R.G. Gordon, D.F. Argus, and S. Stein. Effect of recent revisions to the geomagnetic reversal time scale on estimates of current plate motions. Geophysical Research Letters, 21:2191–2194, 1994. [12] N. Zitellini, L. A. Mendes, D. Cordoba, J. Danobeitia, R. Nicolich, G. Pellis, and al. Source of 1755 Lisbon earthquake and tsunami investigated. EOS Trans. Am. Geophys. Union, 82(26):285, 2001. [13] N. Zitellini, M. Rovere, P. Terrinha, F. Chierici, L. Matias, and Bigset Team. Neogene through Quaternary Tectonic reactivation of SW Iberian Passive Margin. Pure Appl. Geophys., 161:565–585, 2004. [14] W.R. Peltier and C.O. Hines. On the possible detection of tsunamis by a monitoring of the ionosphere. Journal of Geophysical Research, 81:1995–2000, 1976. [15] J. Artru, V. Ducic, H. Kanamori, P. Lognonn´e, and M. Murakami. Ionospheric detection of gravity waves induced by tsunamis. Geophy. J. Int, 106:840–848, 2005. [16] M. Nosov, S. Kolesov, A. Denisova, A. Alekseev, and B. Levin. On the nearbottom pressure variations in the region of the 2003 Tokachi-Oki tsunami source. Oceanology, 47(1):26–32, 2007.en_US
dc.description.obiettivoSpecifico1.8. Osservazioni di geofisica ambientaleen_US
dc.description.journalTypeN/A or not JCRen_US
dc.description.fulltextopenen
dc.contributor.authorPignagnoli, L.-
dc.contributor.authorChierici, F.-
dc.contributor.authorFavali, P.-
dc.contributor.authorBeranzoli, L.-
dc.contributor.authorEmbriaco, D.-
dc.contributor.authorMonna, S.-
dc.contributor.authorD’Oriano, F.-
dc.contributor.authorZitellini, N.-
dc.contributor.departmentInstitute of Marine Sciences, CNR, Bologna, Italy-
dc.contributor.departmentInstitute of Marine Sciences, CNR, Bologna, Italy-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia-
dc.contributor.departmentInstitute of Marine Sciences, CNR, Bologna, Italy-
dc.contributor.departmentInstitute of Marine Sciences, CNR, Bologna, Italy-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.openairetypearticle-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
crisitem.author.deptIstituto di Scienze Marine-CNR, sez. di Bologna, Italy-
crisitem.author.deptIRA-INAF, Via P. Gobetti, 101 40129 Bologna, Italy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptInstitute of Marine Sciences, CNR, Bologna, Italy-
crisitem.author.deptCNR-ISMAR - Consiglio Nazionale delle Ricerche, Istituto delle Scienze Marine-
crisitem.author.orcid0000-0002-0810-0263-
crisitem.author.orcid0000-0001-9241-1322-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent05. General-
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