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Publication Open Access Airborne Strapdown Gravity Survey of Sos Enattos Area (NE Sardinia, Italy): Insights into Geological and Geophysical Characterization of the Italian Candidate Site for the Einstein Telescope(Basel : Molecular Diversity Preservation International, 2025-07-05)Strapdown gravity systems are increasingly employed in airborne geophysical exploration and geodetic studies due to advantages such as ease of installation, wide dynamic range, and adaptability to various platforms, including airplanes, helicopters, and large drones. This study presents results from an airborne gravity survey conducted over the northeastern sector of Sardinia (Italy), using a high-resolution strapdown gravity ensuring an accuracy of approximately 1 mGal. Data were collected at an average altitude of 1800 m with a spatial resolution of 3.0 km. The survey focused on the Sos Enattos area near Lula (Nuoro province), a candidate site for the Einstein Telescope (ET), a third-generation gravitational wave observatory. The ideal site is required to be geologically and seismically stable with a well-characterized subsurface. To support this, we performed a new gravity survey to complement existing geological and seismic data aimed at characterizing the mid-to-shallow crustal structure of Sos Enattos. Results show that the strapdown system effectively detects gravity anomalies linked to crustal sources down to ~3.5 km, with particular emphasis within the 1–2 km depth range. Airborne gravity data reveal higher frequency anomalies than those resolved by the EGM2008 global gravity model and show good agreement with local terrestrial gravity data. Forward modeling of the gravity field suggests a crust dominated by alternating high-density metamorphic rocks and granitoid intrusions of the Variscan basement. These findings enhance the geophysical understanding of Sos Enattos and support its candidacy for the ET site.Publication Open Access The INGV macroseismic photographic database (DFM): a structured photographic collection of earthquake effects in Italy(Göttingen: Copernicus Publications, 2026-04-28)The Macroseismic Photographic Database (DFM) is a FAIR (Findable, Accessible, Interoperable, and Reusable) dataset developed and maintained by the Istituto Nazionale di Geofisica e Vulcanologia (INGV). It provides a structured archive of photographic evidence documenting the effects of moderate to strong earthquakes in Italy since the 1980s. The data collection is primarily carried out by the INGV's QUEST (QUick Earthquake Survey Team) during post-event macroseismic field campaigns. The database was initially conceived to preserve at-risk analogue photographic material but has evolved into a comprehensive digital resource where each image is catalogued with detailed metadata. The classification of building typologies and damage grades is standardised according to the principles of the European Macroseismic Scale 1998 (EMS-98). The DFM is designed for full interoperability within the INGV data ecosystem, linking each photograph to earthquakes, localities, and macroseismic observations contained in primary databases such as the Italian Seismological Instrumental and Parametric Database (ISIDe), the Parametric Catalogue of Italian Earthquakes (CPTI15), and the Italian Macroseismic Database (DBMI15). This paper describes the database structure, the data collection protocol, the metadata schema, and the technical solutions adopted to ensure data quality and accessibility. The DFM represents a valuable resource for scientific research in engineering seismology, historical seismology, and for training operators involved in damage assessment, providing crucial ground-truth data for seismic hazard studies and civil protection purposes. The dataset is publicly accessible at https://doi.org/10.13127/dfm (QUEST, 2023).Publication Restricted GDPR compliance through standard security controls: An automated approach(Amsterdam Netherlands: IOS Press, 2024-05-10)Since 2018, the enactment of the General Data Protection Regulation (GDPR) has bestowed distinct privileges upon each person while imposing protocols to safeguard personal information. The GDPR effectively tackles an evident requirement within our interconnected, social media-driven society. However, its compliance poses a considerable challenge, particularly for small and medium-sized businesses. This work aims to identify and select the proper countermeasures in order to comply with GDPR, by using standard security controls. Thus, we designed a tool to handle some phases of the compliance process in an almost semi-automated way. The proposed approach relies on standard security control frameworks (namely NIST SP-800-53) and can be easily adapted to different frameworks. The proposed technique was validated using our university as a case study, through a simple demonstrator, although the solution can be transparently applied to different contexts.Publication Open Access Near-Real-Time Event-Driven System for Calculating Peak Ground Acceleration (PGA) in Earthquake-Affected Areas: A Critical Tool for Seismic Risk Management in the Campi Flegrei Area(Basel: MDPI AG, 2018-, 2025-02-15)Peak Ground Acceleration (PGA) is a measure of the maximum ground shaking intensity during an earthquake. The estimation of PGA in areas affected by earthquakes is a fundamental task in seismic hazard assessment and emergency response. This paper presents an automated service capable of rapidly calculating the PGA’s values in regions impacted by seismic events and publishing its results on an interactive website. The importance of such a service is discussed, focusing on its contribution to timely response efforts and infrastructure resilience. The necessity for automatic and real-time systems in earthquake-prone areas is emphasized, enabling decision-makers to assess damage potential and deploy resources efficiently. Thanks to a collaboration agreement with the Civil Protection Department, we are able to acquire accelerometric data from the Italian National Accelerometric Network (RAN) in real time at the monitoring center of the Osservatorio Vesuviano. These data, in addition to those normally acquired by the INGV network, enable us to utilize all available accelerometric data in the Campi Flegrei area, enhancing our capacity to provide timely and accurate PGA estimates during seismic events in this highly active volcanic region.Publication Open Access A near real-time framework for monitoring very-long-period signals at volcanoes(London: Springer Nature London: Nature Publishing Group, 2025-11-24)Real-time seismological applications are essential for monitoring active volcanoes, offering valuable tools for the early detection of volcanic unrest and eruption. Very Long Period (VLP) seismicity, commonly observed at open-vent volcanoes with mild and persistent explosive activity, is a key indicator of volcanic activity intensity as changes in the rate of occurrence and VLP event magnitude can be a signal of impending unrest. In this study, we introduce a new method for the automatic and near real-time detection and characterization of VLP seismicity. Our approach was tested on Stromboli Volcano (Italy), where VLP seismic activity has been well-documented for over two decades. The detection algorithm is based on three-component amplitude analysis, derived from waveform polarization and spectral characteristics of continuous seismic records. It extracts key parameters such as detection time, event duration, azimuth, and incidence (polarization) angles. VLP events are distinguished from other signals through a single-station statistical analysis of polarization parameters, providing a reliable near-real-time catalog of VLP detections. Optimal detection thresholds for each station were determined using a machine-learning hyperparameter optimization approach. Here, we focus on the year 2007, which was characterized by highly variable VLP activity, including a major effusive eruption at Stromboli. The algorithm's performance was validated using an independent, manually inspected dataset from 2007, yielding a false alert rate of 23% and a missed alert rate of 27% for the best-performing station. The results show that the method accurately reproduces the temporal evolution of the different activity phases throughout the year, with clear implications for enhancing and integrating VLP detection into existing volcano monitoring strategies. We applied the method to 16 years of seismic data (2009-2024), successfully reconstructing the temporal evolution of the VLP event rate in close agreement with manual inspections. The automatic detections show a strong correlation with manually derived daily rates, demonstrating that our automatic VLP detection time series reliably captures long-term fluctuations in volcanic activity over the entire period of investigation.
Publication Open Access New low power pulse compressed ionosonde at Gibilmanna Ionospheric Observatory(2005)A digital low power pulse compressed ionosonde was developed at the Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, Italy. The aim of this Advanced Ionospheric Sounder, AIS-INGV, is to reduce the transmitted power and, consequently, weight, size, power consumption and hardware complexity. To compensate the power reduction the most advanced HF radar techniques such as the pulse compression and a phase coherent integration are used. The ionosonde is completely programmable and a PC supports the data acquisition, control, storage and on-line processing. The first prototype was installed at Gibilmanna Ionospheric Observatory (Sicily), an interesting location in the center of Mediterranean area. The new ionosonde will contribute to ionospheric database and real time knowledge of South European ionospheric conditions for space weather applications. In this work the first results (ionograms and autoscaled characteristics) are presented and briefly discussed.Publication Open Access The new AIS-INGV digital ionosonde(2003)A new digital ionosonde called AIS-INGV (Advanced Ionospheric Sounder) was designed both for research and for routine service of HF radio wave propagation forecast. Nearly the entire system was developed in the Laboratorio di Geofisica Ambientale at the Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome. It exploits advanced techniques for signal analysis, recent technological devices and PC resources. This paper describes design concepts and performance of the new ionosonde.Publication Open Access The New AIS-INGV Ionosonde at Italian Antarctic Observatory(2004)The Italian Ionospheric Antarctic Observatory of Terra Nova Bay (74.70S, 164.11E) was recently equipped with the AIS-INGV ionosonde developed at the Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, (Italy). This paper aims to describe briefly which are the main characteristics of the instrument and show the good quality and reliability of the recorded ionograms.Publication Open Access THE NEW INGV DIGITAL IONOSONDE: DESIGN REPORT(2002-04)The ionosonde is a system which exploits the radar technique: it applies electromagnetic waves with variable frequency in the HF band to measure the ionospheric layers electron density, height and other parameters. This paper is a technical report on the new digital ionosonde (AIS-INGV), which was designed both for research purposes and for the routine service of the HF radiowave propagation forecast. It has been developed almost completely within the Laboratorio di Geofisica Ambientale (LGA) at the Istituto Nazionale di Geofisica e Vulcanologia (INGV). It exploits advanced techniques for the signal analysis, recent technological devices and PC resources. The report is divided into two parts; the first is a general description of the design development, the second is a more detailed description of the blocks and circuits actually built and tested, directed to a specialist reader.Publication Open Access IONOSONDA A COMPRESSIONE DI IMPULSI - NOTA TECNICA PRELIMINARE(2002)Nel laboratorio di geofisica ambientale dell'Istituto Nazionale di Geofisica e Vulcanologia è stato progettato e realizzato il prototipo di una ionosonda a bassa potenza a compressione di impulsi secondo i dettami della moderna tecnica radaristica. Si è puntato sulla realizzazione di una macchina a bassa potenza e dal costo contenuto con possibilità di costituire una rete di ionosonde per scopi di sorveglianza ionosferica. Il sistema con una potenza di 200W consente di investigare la ionosfera da 90 a 700km con una risoluzione verticale di 5km in un range di frequenza da 1 a 20MHz.
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Title
Preface 8
Abstract
Etna 212
Mt. Etna 211
Italy 184
Stromboli 174
GPS 167
Campi Flegrei 158
seismicity 133
earthquake 132
earthquakes 106
Antarctica 99
ISBN
Subject
Type
article 12313
Conference paper 1048
report 860
book chapter 633
Poster session 625
Abstract 207
web product 200
book 122
