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Nieto, Daniel
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Nieto, Daniel
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- PublicationOpen AccessUNDERSTANDING THE RELATIONSHIP BETWEEN CONTINENTAL AND MARINE GROUNDWATER IN YANTAI (CHINA) AND VENICE (ITALY) AREAS: PRELIMINARY RESULTS(2009-11-16)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Tosi, Luigi ;Shi, Ping ;Baradello, Luca ;Bonardi, Maurizio ;Teatini, Pietro ;Tang, Cheng ;Li, Fulin ;Brancolini, Giuliano ;Chen, Qiao ;Chiozzotto, Barbara ;Frankenfield, Jane ;Giada, Marco ;Liu, Dongyan ;Nieto, Daniel ;Rizzetto, Federica ;Sheng, Yanging ;Xiao, Yang ;Zecchin, MassimoZhou, DiThe coastal areas are transition zones where land and ocean processes interact and play a critical role. Here, several factors may trigger environmental disasters or increases hydrogeological hazard. More than half of the global population lives in the 60 km wide coastal zone and the resources for populations, such as freshwater and food, depend on the critical relationships between land and sea and their variations due to both natural and anthropogenic causes. In particular, climate changes and stresses induced by human activities, e.g. pollution, engineering interventions for dams, flood control, canalization, deforestation, urbanization, agriculture and freshwater withdrawals, cause the degradation and the ravage of the habitat. In the new millennium the management of the use of coastal areas is focussed on the integration of the monitoring systems which have to provide data and information for decision support system-based actions. In 2008 the project “An integrated monitoring and management approach of hydrologic processes in coastal ecosystems for the understanding of the relationship between continental and marine waters in the Yantai (China) and in Venice (Italy) areas” started under the umbrella of the bilateral scientific and technological agreement between the National Research Council of Italy and the Chinese Academy of Sciences. The project is carried out by the Institute of Marine Sciences of Venice and the Institute of Coastal Zone Research for Sustainable Development of Yantai. This project aims at understanding the complex relationship between continental and marine groundwater, i.e. the salt water intrusion, in two coastal areas, the Laizhou Bay (Shandong Province) in the southern Bohai Sea (China) and the Venice Lagoon (Italy). In this work we report an overview of the salt water contamination process in the two study areas and some preliminary results on a survey carried out in the Venice Lagoon, which goal was to test seismic and geoelectrical surveys for the detection of buried morphological features, such as high-permeable sandy paleo-channels, that can enhance the flow of saline water from the lagoon-sea to the inland.291 142 - PublicationOpen AccessTask 3 - Molise -Deliverables D9-D10-D11: Risposta sismica locale a S.Giuliano di Puglia (CB) e in alcuni comuni confinanti(2007-07)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Pacor, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Lovati, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Rovelli, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Caserta, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Nieto, D.; INOGS Trieste ;Bohm, G.; INOGS Trieste ;Priolo, E.; INOGS Trieste ;Klinc, P.; INOGS Trieste ;Laurenzano, G.; INOGS Trieste ;Palmieri, F.; INOGS Trieste ;Marello, L.; INOGS Trieste ;Piscitelli, S.; IMAA CNR Potenza ;Mucciarelli, M.; universita' Basilicata ;Strollo, A.; GFZ Postdam ;Gallipoli, M. R.; IMAA CNR Potenza ;Caputo, E.; universita' Basilicata ;Pelli, F.; Geodeco Spa ;Silvestri, F.; universita' Cosenza ;Puglia, R.; universita' Cosenza ;Maugeri, M.; universita' Catania ;Grasso, S.; universita' Catania ;Eva, C.; universita' Genova ;Ferretti, G.; universita' Genova; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; 181 212 - PublicationOpen Accessask 6 - Gubbio - Deliverable D21: Geological model of the Gubbio basin (Italy) for the characterization of local seismic response(2007-07)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Fiorini, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Pacor, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Bindi, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Rovelli, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Cara, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Di Giulio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Milana, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Monachesi, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Nieto, D.; INOGS Trieste ;Bohm, G.; INOGS Trieste ;Albarello, D.; univerita' Siena ;D'Amico, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Picozzi, M.; univerita' Siena ;Mucciarelli M.; universita' Basilicata ;Scarascia Mugnozza, G.; universita' La Sapienza Roma ;Rivellino, S.; universita' La Sapienza Roma ;Menichetti, M.; universita' Urbino ;Parolai, S.; GFZ Postdam ;Richwalsky, S.; GFZ Postdam ;Orpsal, I; GFZ Postdam; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Within the framework of the project S3 “Ground shaking scenarios for some strategic areas in Italy-Task6” the town of Gubbio has been selected as a test site to compute ground motion taking into account finite fault and site effects. Gubbio is located in central Italy, on the northern slopes of one of the many valleys characterising the central Appennines. The historical settlement is located on a rocky slope, while new developments extend on the Quaternary fluvio-lacustrine deposits filling the basin. The Gubbio basin was chosen as a test site for a number of reasons: its geomorphological setting is very common in central and southern Italy, the area is characterised by frequent near events of moderate magnitude (Mmax 6) and large amplifications were observed there for the Colfiorito seismic sequence of the 1997/98. In order to understand the mechanisms controlling the 3D seismic response of the basin, a subsurface model has been constructed. The reconstruction of the model has been done using data coming from different surveys (figure A). Several active and passive seismic measurements have been carried out in the plain, also favoured by the intense seismic activity typical of the area. These investigations mainly consisted of monitoring activities of 4 temporary transects of seismometric stations, operating between June 2005 and May 2006 and described in detail in PS3- Deliverables D22-D23. Two transects have been positioned perpendicularly to the valley axes (GFZ and Ge2 Transects), one parallel (INGV transect) and one near Gubbio (Ge1 transect). More than 300 local and regional earthquakes have been recorded, with maximum magnitude equal to 4. A 2D array was run as well from June to September 2006, to better understand the generation of surface waves. All data are collected in a GIS (Progetto S3 Deliverable D23) Parallel to these activities, ambient noise data have been collected in the field for 90 sites, using the single station technique for the estimation of the fundamental resonance frequencies. Furthermore, 4 noise measurements with a seismic array have been collected to build an S-wave velocity profile of soft sediments, considered representative for the whole plain. The geometry of the basin below 500 m of depth has been investigated through the acquisition of an active seismic line 4.5 km long, in correspondence of one of the transects. This has been used to perform a tomography of arrival times which allowed to recognise the position and shape of the reflecting horizons. As a final step the first 30 metres of deposits have been characterised over a 30 km2 area, using both stratigraphic investigations provided by the Gubbio Municipality and data collected from in-situ surveys and lab tests. In this deliverable we describe the input data for the 3D model of the Gubbio basin and we outline the steps performed to define the geometry, the layers and their seismic properties on the base of the experimental data collected during the project and of the available geological information.295 583