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Anzidei, Marco
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Anzidei, Marco
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marco.anzidei@ingv.it
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171 results
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- PublicationOpen AccessThe INGV-CNT crustal motion map for the Euro-Mediterranean region(2015-04-12)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Serpelloni, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;D'Agostino, N.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Devoti, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Avallone, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Cavaliere, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia ;Cecere, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;D'Ambrosio, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Esposito, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Falco, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Galvani, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Pietrantonio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Selvaggi, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Sepe, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; ; ; ; ; ; ; ; ; ; ; ; Several thousands GPS/GNSS permanent stations, managed by both scientifc and cadastral institutions, are now available on the European plate and its boundaries. Data coming from these stations provide unprecedented spatial and temporal coverage of time-dependent deformation signals essential to understand the fundamental physics that govern tectonic deformation and faulting. The National Earthquake Center (Centro Nazionale Terremoti, CNT) of the National Institute of Geophysics and Volcanology (Istituto Nazionale di Geofisica e Vulcanologia, INGV) in Italy, is the Italian leader institution for the collection, management and scientific analysis of Global Positioning Systems (GPS) measurements. Distinct analysis centers independently and routinely process and analyze data using high-quality geodetic software (Bernese, Gamit, Gipsy) to measure the movements of >1000 points spanning the Eurasian plate and its boundaries. The goal of this project is to offer high-quality geodetic products, increase their accessibility to the European scientific community and promote the inter-disciplinary data exchange through a multi-level, user-friendly data gateway. These activities will be performed in strict contact with the GNSS Working Group of the EPOS project (http://www.eposeu.org) that is proposing to integrate, archive and distribute data, metadata and products for available GNSS stations on the European plate.384 561 - PublicationOpen AccessMonitoraggio speditivo delle coste rocciose da fotogrammetria SfM da imbarcazione: considerazioni sul metodo per misure indipendenti.(2016)
; ; ; ; ; ; ; ; ; Nel presente lavoro sono presentati due metodi, uno dei quali in grado di fornire dati molto precisi e l’altro di tipo grossolano. Il primo si avvale di una serie di punti misurati indipendentemente con tecniche di telerilevamento o topografiche per assegnare valori reali ai punti omologhi riconosciuti nelle immagini, o meglio nei modelli ottenuti mediante SfM, e creare le polilinee per il calcolo del perimetro. In riferimento alla figura 7 sono state create le polilinee utilizzando i punti misurati in precedenza con tecnica TLS [Pesci et al., 2016]. I dati sono riportati in tabella 3. Come già nel caso dell’allineamento tra loro delle nuvole di punti SfM, sono stati considerati 10 test per ciascuna polilinea. La statistica mostra che la vera lunghezza del perimetro, espressa in metri, è stata ottenuta con un errore di circa 2 cm ed un conseguente errore relativo di circa 0.01%, in ottimo accordo con le misure mostrate in precedenza. Questo indica che la rumorosità della nuvola di punti TLS, in questa situazione di rilievo, è paragonabile a quella delle nuvole fotogrammetriche, cosa che in effetti è supportata anche dal grafico in figura 2 nel quale la dimensione del pixel a terra può essere intesa come indice del livello di rumore. I risultati riguardanti le lunghezze delle polilinee sono altresì riportati in figura 10.452 27 - PublicationOpen AccessHas the Mediterranean Sea felt the March 11th, 2011, Mw 9.0 Tohoku-Oki earthquake?(2012-06)
; ; ; ; ; ;Vecchio, A.; Università della Calabria ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Capparelli, V.; Università della Calabria ;Carbone, V.; Università della Calabria ;Guerra, I.; Università della Calabria; ; ; ; The possibility that the tsunami, generated as a consequence of the large Mw 9.0 Tohoku-Oki earthquake of March 11th 2011, could be recorded by the tide gauge stations located in the Mediterranean Sea has been investigated. We find two kinds of transient signatures which should be attributed to the far-field destabilizing effect of the tsunami on the usual tidal components: 1) the excitation of a broad spectrum of frequency fluctuations, superimposed to the diurnal and semidiurnal tidal components, 2) the change of amplitude of the low-frequency tidal components in the Mediterranean, related to the sea surface fluctuation perhaps caused by the direct transmission of the tsunami across Gibraltar.355 219 - PublicationRestrictedPaleo-surfaces of glacio-eustatically forced aggradational successions in the coastal area of Rome: Assessing interplay between tectonics and sea-level during the last ten interglacials(2016)
; ; ; ; ; ; ; Recently acquired geochronological and stratigraphic data provide new information on the sedimentary successions deposited by the Paleo-Tiber River in the coastal and near-coastal area of Rome in consequence of the glacio-eustatic changes, allowing to better define their inner geometry and palaeogeographic spatial distribution. In the present work we use this revised sedimentary dataset to provide a geochronologically constrained and tectonically adjusted record of paleo sea-level indicators. Aimed at this scope, we review literature data acquired in the last 35 years and using the new geochronological constraints we pinpoint the coastal-to-fluvial terraces of MIS 5 and MIS 7, mapping their relic surfaces in an area of 30 km along the coast north and south of the Tiber River mouth, and 20 km inland of the fluvial valleys of Tiber and Aniene rivers. The geometry of these paleo-surfaces provides constraints on the relative elevation of the sea-level during the last interglacials and on the uplift rates in this region during the last 200 ka. In particular, we recognize the previously undetected terraces of MIS 5.3 and MIS 5.1 interstadials, and we assess their spatial relationship with respect to MIS 5.5, providing important information on sea-level oscillations during this time span. Comparison with sea-level indicators provided by previous aggradational successions deposited during past interglacials spanning MIS 9 through MIS 21 in the coastal area of Rome, also allows us to reconstruct the tectonic history and investigate its relationships with the Middle-Pleistocene volcanic activity of the Roman Comagmatic Region along the Tyrrhenian Sea margin of Italy in the last 900 ka.162 3 - PublicationRestrictedSea level changes since the Middle Ages along the coast of the Adriatic Sea: the case of St. Nicholas Basilica, Bari, Southern Italy(2013)
; ; ; ;Pagliarulo, R. ;Antonioli, F. ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ; ;During the last decade, several papers have been published to estimate the relative sea level change from coastal archaeological indicators of the last 3.4 ka BP in many locations of the Italian coasts and the Mediterranean Sea. The use of the archaeological information has been poorly focused for the Middle Ages, due to the few available coastal installations for this period, thus not allowing precise sea level estimation for the last 1000 years, to complement the instrumental data available for the last 100e120 years. This study discusses an archaeological marker of the Middle Ages, used to reconstruct the story of the sea level changes in the last 1000 years, at the St. Nicholas Basilica, built in 1087 AD along the coast of Bari (Apulia, southern Italy). The elevations of the ancient floor levels of the crypt underwent repeated flooding due to a continuous rising of the groundwater table, which required restoration and uplifting of pavements between 1087 and 1956 to keep them dry. The palaeo-sea levels have been obtained by measuring the position of the groundwater table, the elevation of which is mainly driven by sea level since the time of the construction of the Basilica. The elevation of the archaeological markers and the water table were compared against the latest predicted sea level curve for the Holocene along the coast of Bari. As this coastal area is unaffected by significant vertical tectonic motion over the last 125 ky, the data detail the timing of the relative sea level rise since the Middle Ages and can be used to improve the predicted sea level curve for this region for the last 1000 years.140 23 - PublicationOpen AccessGPS measurements in the Central Mediterranean area(1992-09-23)
; ; ; ; ; ;Achilli, V. ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Baldi, P. ;Bonini, C. ;Poga, K. ;; ; ; ;; ;Manzoni, Giorgio; Università di TriesteAmong the different activities of the Italian scientific community in the filed of GPS measurements, interesting remarks about GPS applications over distances exceeding 1000 km were made thanks to the institution of a network for the geodynamic control of the central Mediterranean area.101 316 - PublicationOpen AccessThe first ultra-high resolution Digital Terrain Model of the shallow-water sector around Lipari Island (Aeolian Islands, Italy)(2015)
; ; ; ; ; ; ;Bosman, A.; 1Istituto di Geologia Ambientale e Geoingegneria, Consiglio Nazionale delle Ricerche, Via Eudossiana 18, 00184, Rome, Italy ;Casalbore, D.; Istituto di Geologia Ambientale e Geoingegneria, Consiglio Nazionale delle Ricerche, Via Eudossiana 18, 00184, Rome, Italy ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Muccini, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Carmisciano, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Francesco Latino, C.; Sapienza, Università di Roma, Dip. Scienze della Terra, Piazzale Aldo Moro 5, 00185, Rome Italy; ; ; ; ; Very high resolution bathymetric map obtained through multibeam echo-sounders data are crucial to generate accurate Digital Elevation Terrain Models from which the morphological setting of active volcanic areas can be analyzed in detail. Here we show and discuss the main results from the first multibeam bathymetric survey performed in shallow-waters around the Island of Lipari, the largest and the most densely populated of the Aeolian islands (Southern Italy). Data have been collected in the depth range of 0.1-150 m and complete the already existent high-resolution multibeam bathymetry realized between 100 and 1300 m water depth. The new ultra-high resolution bathymetric maps at 0.1-0.5 m provide new insights on the shallow seafloor of Lipari, allowing to detail a large spectrum of volcanic, erosive-depositional and anthropic features. Moreover, the presented data allow outlining the recent morphological evolution of the shallow coastal sector of this active volcanic island, indicating the presence of potential geo-hazard factors in shallow waters.752 780 - PublicationOpen AccessCoastal Erosion and Flooding Threaten Low-Lying Coastal Tracts at Lipari (Aeolian Islands, Italy)(2022)
; ; ; ; ; ; ; ; ; ; ;; ; ; ;Lipari is the largest and most populated island in the Aeolian Archipelago, a UNESCO site, and a highly frequented touristic destination. As in many other insular settings, the low-lying coastal stretches in the E and NE sectors of Lipari are locally exposed to coastal erosion and flooding, enhanced by subsidence effects leading to local sea level rise. Most of these coastal sectors appear critical, being narrow and increasingly threatened by the risk of permanent inundation and beach disappearance. In this study, this setting is placed in the wider context of the decadal evolution of the main beaches, analysed through a multidisciplinary approach, which includes remote sensing techniques (aero-photogrammetry, unmanned aerial vehicle survey, and satellite data), offshore geophysical surveys (high-resolution multibeam bathymetry), and field observations. The results show a variable interaction in space and time between natural and anthropogenic factors in the long- and mid-term evolution of the studied coastal areas. Considering that part of the local economy at Lipari depends on beach tourism, proper future management is required in the view of natural risk reduction and in the light of future climate changes and related impacts.130 19 - PublicationRestrictedSea level change along the Italian coast during the Holocene and projections for the future(2011)
; ; ; ; ; ; ; ;Lambeck, K. ;Antonioli, F. ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Ferranti, L. ;Leoni, G. ;Scicchitano, G. ;Silenzi, S. ; ;; ; ; ;Published and new sea level data are used to provide projections of sea level change in Italy for the year 2100 by adding new isostatic and tectonic component to the IPCC and Rahmstorf projections. Comparison of the observations from more than 130 sites (with different geomorphological and archaeological sea level markers) with the predicted sea level curves provides estimates of the vertical tectonic contribution to the relative sea level change. The results are based on the most recent ANU model for the ice sheets of both hemispheres, including an alpine deglaciation model. On the basis of the eustatic, tectonic and isostatic components to the sea level change, projections are provided for marine inundation scenarios for the Italian coastal plains for the year 2100, that today are at elevations close to current sea level.162 32 - PublicationOpen AccessThe coseismic ground deformations of the 1997 Umbria-Marche earthquakes: a lesson for the development of new GPS networks(2008-04)
; ; ; ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Baldi, P.; Università degli Studi di Bologna, Dipartimento di Fisica, Settore Geofisica, Bologna ;Serpelloni, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; After the occurrence of the two main shocks Mw=5.7 (00.33 GMT) and Mw=6.0 (09:40 GMT) on September 26, 1997, which caused severe damages and ground cracks in a wide area of the Umbria Marche region, the Istituto Nazionale di Geofisica in cooperation with the Istituto Geografico Militare Italiano set out to detect the coseismic ground deformation and reoccupied the available geodetic monuments placed across the epicentral area, belonging to the first order Italian GPS network IGM95 and to the Tyrgeonet network. The comparison between the pre and post-earthquakes coordinate set, the latter obtained from the surveys performed in the early days of October 1997 in the Umbria Marche earthquake area, showed maximum displacements values at the closest stations to the epicentres, up to 14.0±1.8 and 24.0±3.0 cm in the horizontal and vertical components, respectively. The availability of the IGM95 stations allowed geodetic data to be translated into relevant geophysical results. For the first time in Italy, the evaluation of post-earthquake coordinates at 13 vertices provided the estimation of a significant deformation field associated with a seismic sequence. Unfortunately, the same actions could not be applied to the October 14, 1997, Mw=5.6 Sellano earthquake, whose epicentre was located a few tens of km south of the previous ones, due to a lack of available geodetic vertices of Tyrgeonet and IGM95 networks in the surroundings of the epicentral zone. This fact, which prevented the estimation of coseismic deformation and seismic source modelling for this earthquake, clarified the need to set up tailor made GPS networks devoted to geophysical applications, able to capture a possible coseismic signal, but also interseismic and post-seismic signals, at the surface of the Earth’s crust at the scale of the expected magnitudes and fault length. Here we show and discuss the development of the Discrete GPS and Continuous GPS (CGPS) networks in the Italian region started since the early 1990s, which greatly increased after the 1997 Umbria Marche earthquakes, and the insights gained from this action which can be also integrated as Global Observing Strategy to monitor our Environment from Earth and Space.504 306