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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7098
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dc.contributor.authorallMangano, Giorgio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italiaen
dc.contributor.authorallD'Alessandro, Antonino; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italiaen
dc.contributor.authorallD'Anna, Giuseppe; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italiaen
dc.date.accessioned2011-09-15T14:43:58Zen
dc.date.available2011-09-15T14:43:58Zen
dc.date.issued2011-06-06en
dc.identifier.urihttp://hdl.handle.net/2122/7098en
dc.description.abstractThe Ocean Bottom Seismometer with Hydrophone (OBS/H) is an autonomous data-acquisition system which free falls to the sea floor to record seismic and pressure signals generated by earthquakes and tsunamis. The development and the improvement of OBS/H's is a necessary process for seismological research institutions, because in the world about 90 percent of all natural earthquakes has epicenters in offshore areas. This paper describes the OBS/H developed by the “Istituto Nazionale di Geofisica e Vulcanologia” (INGV), designed to reliably collect broadband data from seafloor sites during long term deployment. The data recorded by seismometers on the sea floor is influenced by background noise. In particular, the free fall of the instrument and the subsequent dropping of the seismic sensor on the superficial sediments, could cause coupling problems with signals distortion and high level noise due to the sensor tilt. Supported by data acquired during several monitoring campaigns in the Mediterranean Sea, we will show that the INGV OBS/H is able to record high quality seismic signals with low noise levels and low distortion, proving a good coupling of the seismometer with the seabed.en
dc.language.isoEnglishen
dc.publisher.nameIEEE Xploreen
dc.relation.ispartofOCEANS, 2011 IEEE - Spainen
dc.subjectOBS/Hen
dc.subjectOBSen
dc.subjectOcean Bottom Seismometeren
dc.subjectUnderwater monitoringen
dc.titleLong term underwater monitoring of seismic areas: Design of an Ocean Bottom Seismometer with Hydrophone and its performance evaluationen
dc.typeExtended abstracten
dc.description.statusPublisheden
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniquesen
dc.identifier.doi10.1109/Oceans-Spain.2011.6003609en
dc.description.ConferenceLocationSantander, Spainen
dc.relation.references[1] G. D’Anna, G. Mangano, A. D’Alessandro, R. D’Anna, G. Passafiume, and S. Speciale, "First long time OBS campaign in the Ionian Sea", Rapporti Tecnici INGV, vol. 72, pp. 1-15, 2008. [2] L. Margheriti, and Messina Team, "Understanding Crust Dynamics and Subduction in Southern Italy", Eos Trans. AGU, vol. 89(25), pp. 225–226, 2008. [3] A. D'Alessandro, G. D'Anna, D. Luzio, and G. Mangano G., "The INGV's new OBS/H: analysis of the signals recorded at the Marsili submarine volcano", J. of Volc. and Geoth. Res., vol. 183, pp. 17-29, 2009. [4] A. D’Alessandro, G. Mangano, G. D’Anna and D. Luzio, "Palermo 2010 - Underwater seismic monitoring of the epicenter area of the 6 September 2002 Palermo earthquake", Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 03-08 April 2011, vol. 13°, 2011, EGU2011-11587. [5] G. D’Anna, G. Mangano, A. Amato, A. D’Alessandro, N., Piana Agostinetti, and G. Selvaggi, G., "First INGV BBOBS Campaign in the Ionian Sea: Crustal Velocity Model Inferred from Seismic Data Recorded", 31st General Assembly of European Seismological Commission, Crete (Greece), 7-12 September, 2008. [6] C. Cox, T. Deaton, and S.C. Webb, "A Deep-Sea Differential Pressure Gauge", Journal of Atmospheric and Oceanic Technology, vol. 1, n. 3, pp. 237–246, 1984. [7] F. B. Wooding, K.R Peal, J.T. Hallinan, and J.A. Collins, "ORB-A new ocean bottom seismic data logger", Oceans 1998 MTS/IEEE Conference Proceedings, 28 Sept-1, Oct Nice (THF 4-2). [8] "Trillium 120P Broadband Seismometer, User Guide", Nanometrics Inc. Kanata, Ontario, Canada, Rev. 15149R3, 27 April 2006 www.nanometrics.ca. [9] S.C. Webb, "Broad seismology and noise under the ocean", Rev. Geophys., vol. 36, pp. 105-142, 1998. [10] G. D’Anna, G. Mangano, A. D'Alessandro, and A. Amato, "The new INGV broadband OBS/H: test results on submarine volcano Marsili and future developments". Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 15-20 April 2007, vol. 9°, ISBN/ISSN: 1029- 7006. [11] G. D’Anna, G. Mangano, and A. D’Alessandro, "Ionian Sea OBS observation", NERIES Newsletter, n. 4, October 2008. [12] G. D'Anna, G. Mangano, and A. D'Alessandro, "The OBS experience at INGV", NERIES-ESONET OBS-Marine Seismology Workshop, 11-12 Feb. 2010, Paris, France, 2010. [13] G. D’Anna, G. Mangano, A. Amato, A. D'Alessandro, and G. Selvaggi, "INGV Broad Band Ocean Bottom Seismometers deployed in the Ionian Sea.", Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 13-18 April 2008, vol. 10°, ISBN/ISSN: 1029-7006. [14] A. D'Alessandro, G. D’Anna, D. Luzio, and G. Mangano, "Polarization and high resolution parametric spectral analysis applied to the seismic signals recorded on the Marsili submarine volcano", Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 13-18 April 2008, vol. 10°, ISBN/ISSN: 1029-7006. [15] D.E. McNamara and R.P. Buland, "Ambient noise levels in the continental United States", Bull. Seis. Soc. Am, vol. 94, pp. 1517-1527, 2004. [16] P.D. Welch, "The use of the fast Fourier transform for the estimation of power spectra: a method based on time averaging over short modified periodograms", IEEE Trans. Audio Elettroacoust, vol. 15, pp. 70-73, 1967. [17] J. Peterson, "Observations and modeling of seismic back-ground noise". USGS Open File Report, n. 322, 1993. [18] C.S. McCreery, F.K. Duennebier, and G.H. Sutton, "Correlation of deep noise ocean noise (90.4-20 Hz) with wind, and the Holu spectrum a worldwide costant", J. Acoustic. Soc. Am., vol. 93(5), pp. 2639-2648, 1993. [19] S.C. Webb, "Seismic noise on land and on the sea floor", in International Handbook of Earthquake and Engineering Seismology, Ed. Lee, W,HK, Kanamori, H., Jennings, P.C., Kisslinger, C., Accademic Press, 2002. [20] A. D'Alessandro, D. Luzio, G. D’Anna, G. Mangano, and N. Messina, "SNES - seismic network evaluation through simulation: an application to the Italian RSNC-INGV". Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 02-07 May 2010, vol. 12°, EGU2010-8991, 2010. [21] A. D’Alessandro, D. Luzio, G. D’Anna and G. Mangano. "Seismic Network Evaluation through Simulation: An Application to the Italian National Seismic Network", Bull. Seism. Soc. Am., vol. 101, n. 3, in press. [22] G.H. Sutton, F.K. Duennebier, and B.T. Iwatake, "Coupling of ocean bottom seismometers to soft bottoms", Mar. Geophys., Res., vol. 5, n. 35- 52, 1981 [23] F.K. Duennebier, and G.H Sutton, "Fidelity of ocean bottom seismic observations, Marine Geophysical Researches, vol. 17, pp. 535-555, 1995. [24] T. Bartosch, and D. Seidl, D., "Spectrogram analysis of selected tremor signals using short-time Fourier transform and continuous wavelet transform", Ann. Geophys., vol. 42, pp. 497–506, 1999. [25] A.A. Ostrovsky A. A., "On the nature of microshocks recorded by bottom seismographs", Mar. Geophys. Res., vol. 11, n. 2, pp. 113-118, 1989. [26] A.A. Ostrovsky, "The estimation of ocean bottom seismographs' coupling characteristics by means of microshock recordings", Mar., Geophys. Res., vol. 11, n. 2, pp. 119-127, 1989. [27] T.M. Brocher, and B.T. Iwatake, "Sources of low-frequency ambient seafloor noise on a continental shelf", Bull. Seismol. Soc. Amer., vol. 72, pp. 1129-1142, 1982. [28] R.E. Buskirk, C. Frohlich, G.V. Latha, A.T. Chen, and J. Lawron, "Evidence that biological activity affects ocean bottom seismograph", Recording, Mar. Geophys. Res, vol. 5, pp. 189-205, 1981en
dc.description.obiettivoSpecifico2.5. Laboratorio per lo sviluppo di sistemi di rilevamento sottomarinien
dc.description.fulltextrestricteden
dc.contributor.authorMangano, Giorgioen
dc.contributor.authorD'Alessandro, Antoninoen
dc.contributor.authorD'Anna, Giuseppeen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italiaen
item.openairetypeExtended abstract-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.orcid0000-0002-0074-3125-
crisitem.author.orcid0000-0002-4642-3901-
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.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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