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  • 05. General::05.08. Risk::05.08.01. Environmental risk  (5)
  • 05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous
  • Istituto Nazionale di Geofisica e Vulcanologia  (3)
  • Copernicus Gesellschaft GMBH  (2)
  • American Institute of Physics (AIP)
  • EDP Sciences 2011
  • MDPI Publishing
  • Public Library of Science
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Erscheinungszeitraum
  • 1
    Publikationsdatum: 2021-06-16
    Beschreibung: Scintillations are rapid fluctuations in the phase and amplitude of transionospheric radio signals which are caused by small-scale plasma density irregularities in the ionosphere. In the case of the Global Navigation Satellite System (GNSS) receivers, scintillation can cause cycle slips, degrade the positioning accuracy and, when severe enough, can even lead to a complete loss of signal lock. Thus, the required levels of availability, accuracy, integrity and reliability for the GNSS applications may not be met during scintillation occurrence; this poses a major threat to a large number of modern-day GNSS-based applications. The whole of Latin America, Brazil in particular, is located in one of the regions most affected by scintillations. These effects will be exacerbated during solar maxima, the next predicted for 2013. This paper presents initial results from a research work aimed to tackle ionospheric scintillation effects for GNSS users in Latin America. This research is a part of the CIGALA (Concept for Ionospheric Scintillation Mitigation for Professional GNSS in Latin America) project, co-funded by the EC Seventh Framework Program and supervised by the GNSS Supervisory Authority (GSA), which aims to develop and test ionospheric scintillation countermeasures to be implemented in multi-frequency, multi-constellation GNSS receivers.
    Beschreibung: Published
    Beschreibung: A05
    Beschreibung: 3.9. Fisica della magnetosfera, ionosfera e meteorologia spaziale
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): modelling and forecasting ; ionosphere ; equatorial ionosphere ; ionospheric irregularities ; 01. Atmosphere::01.02. Ionosphere::01.02.06. Instruments and techniques ; 01. Atmosphere::01.02. Ionosphere::01.02.07. Scintillations ; 05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Publikationsdatum: 2017-04-04
    Beschreibung: In this work we present the result of a study aimed at examining the Italian earthquake sequences that occurred in the area of the central Adriatic sea with the purpose of understanding whether some of them were accompanied by tsunami effects. The motivation for this research was the update and enrichment of the Italian Tsunami Catalogue. The result was that evidence was found for two new cases of earthquake-induced tsunamis: these are the August 1916 Rimini and the October 1930 Ancona events. The bulk of the present research consisted in collecting all the available data on the earthquakes that affected the selected area in the past century and in identifying those potentially capable of generating tsunamis. During the study all the available material was gathered, which includes specific monographs and scientific papers, articles available in contemporary chronicles and in local and national newspapers. The final result of this research will improve our knowledge of the tsunamigenic activity of the central Adriatic sea and contribute to the assessment of the tsunami hazard and risk along these coasts, that especially in the peak season form one of the most densely populated areas of the Italian peninsula with flat and large beaches and water front resorts crowded of tourists.
    Beschreibung: Published
    Beschreibung: 15-19
    Beschreibung: 1.8. Osservazioni di geofisica ambientale
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Adriatic Sea ; Tsunami catalogue ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    facet.materialart.
    Unbekannt
    Copernicus Gesellschaft GMBH
    Publikationsdatum: 2017-04-04
    Beschreibung: A new version of the European catalogue of tsunamis is presented here. It differs from the latest release of the catalogue that was produced in 1998 and is known as GITEC tsunami catalogue in some important aspects. In the first place, it is a database built on the Visual FoxPro 6.0 DBMS that can be used and maintained under the PC operating systems currently available. Conversely, the GITEC catalogue was compatible only with Windows 95 and older PC platforms. In the second place, it is enriched by new facilities and a new type of data, such as a database of pictures that can be accessed easily from the main screen of the catalogue. Thirdly, it has been updated by including the newly published references. Minute and painstaking search for new data has been undertaken to re-evaluate cases that were not included in the GITEC catalogue, though they were mentioned in previous catalogues; the exclusion was motivated by a lack of data. This last work has focused so far on Italian cases of the last two centuries. The result is that at least two events have been found which deserve inclusion in the new catalogue: one occurred in 1809 in the Gulf of La Spezia, and the other occurred in 1940 in the Gulf of Palermo. Two further events are presently under investigation.
    Beschreibung: Published
    Beschreibung: 255-262
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Tsunami catalogue ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    facet.materialart.
    Unbekannt
    Istituto Nazionale di Geofisica e Vulcanologia
    Publikationsdatum: 2017-04-04
    Beschreibung: Tutte le stazioni gestite dall’Osservatorio di Gibilmanna partecipano ai processi di localizzazione degli eventi sismici in esecuzione presso la sala sismica del Centro Nazionale Terremoti. La mancanza di dati provenienti da alcune stazioni, a causa di guasti alla strumentazione o a causa di interruzioni delle reti di trasmissione dati, può degradare la precisione della stima dei parametri ipocentrali degli eventi sismici localizzati. Da ciò si desume quanto sia importante garantire la massima efficienza della rete ed un rapido intervento tecnico per la risoluzione dei guasti. A tal fine, presso l’Osservatorio di Gibilmanna, è stato realizzato un sistema di monitoraggio delle stazioni GAIA2 e dei componenti di rete di proprietà dell’INGV che permette: 1. l’automatica ed immediata segnalazione del guasto tramite e-mail; 2. l’individuazione dei componenti di rete guasti; 3. una prima diagnosi relativa al guasto rilevato, grazie allo storico dei parametri monitorati; 4. una risoluzione automatica del guasto nei casi in cui sia sufficiente un reset del software di acquisizione dei segnali sismici o un soft-reset dell’acquisitore. Il sistema di monitoraggio è stato realizzato mediante l’utilizzo di due applicazioni: i) The Dude, software free della MikroTik, che effettua il monitoraggio della presenza dei componenti di rete mediante ping e verifica l’apertura di porte TCP/IP fondamentali come quella aperta dal server Seedlink; ii) Zabbix, software open source che permette il monitoraggio in real-time di diversi parametri di stato dei nodi della rete mediante protocollo SNMP (Simple Network Management Protocol). Sfruttando alcune funzionalità di Zabbix, gli autori del presente Rapporto Tecnico hanno sviluppato una soluzione sistemistica che permette il riavvio dell’applicativo che sulle GAIA2 acquisisce i segnali sismici, nel caso in cui questo risulti bloccato. Per permettere l’interfacciamento tra Zabbix e le GAIA2, infatti, sono stati sviluppati degli script da installare sul server Zabbix ed a bordo delle GAIA2, grazie ai quali, congiuntamente con alcune configurazioni del server SSH sulla GAIA2, il server Zabbix è in grado di accedere in automatico via SSH sulle GAIA2 e di eseguire alcuni comandi per la risoluzione del problema riscontrato in fase di monitoraggio. Il sistema implementato, ha permesso di ridurre i tempi di interruzione nell’invio dei segnali sismici. Inoltre ha reso possibile una migliore gestione dei guasti, grazie all’immediata notifica del problema e all’individuazione della tipologia di guasto.
    Beschreibung: Published
    Beschreibung: 1-32
    Beschreibung: 2.5. Laboratorio per lo sviluppo di sistemi di rilevamento sottomarini
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): Sistemi di monitoraggio, Zabbix, GAIA ; 05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    facet.materialart.
    Unbekannt
    Istituto Nazionale di Geofisica e Vulcanologia
    Publikationsdatum: 2017-04-04
    Beschreibung: The Scanno Lake, a small water reservoir in Scanno's area (Abruzzo, Italy) has been subject of interest by local and national media because of the spreading news about some 'strange phenomena' observed by usual visitors of this site and some divers who have observed anomalies in their compass when diving. Afterwards, two branches of the Istituto Nazionale di Geofisica e Vulcanologia: the Unit 'Geophysical and Marine Technology' and the 'Laboratory of Environmental Geophysics', organized a geophysical survey to define the environmental characterization of the lake and to check the possible presence of anomalous phenomena. In this paper, we present the methodologies used and their preliminary results.
    Beschreibung: Published
    Beschreibung: 1-31
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): Lago di Scanno, magnetismo, side scan sonar, multibeam, indagini ambientali, sicurezza ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    Publikationsdatum: 2017-04-04
    Beschreibung: Background: Trace elements have been hypothesised to be involved in the pathogenesis of Multiple Sclerosis and volcanic degassing is the major natural sources of trace elements. Both incidence of Multiple Sclerosis in Catania and volcanic activity of Mount Etna have been significantly increased during the last 30 years. Due to prevailing trade winds direction, volcanic gases from Etna summit craters are mostly blown towards the eastern and southern sectors of the volcano. Objective: To evaluate the possible association between Multiple Sclerosis and exposure to volcanogenic trace elements. Methods: We evaluated prevalence and incidence of Multiple Sclerosis in four communities (47,234 inhabitants) located in the eastern flank and in two communities (52,210 inhabitants) located in the western flank of Mount Etna, respectively the most and least exposed area to crater gas emissions. Results: A higher prevalence was found in the population of the eastern flank compared to the population of the western one (137.6/100,000 versus 94.3/100,000; p-value 0.04). We found a borderline significantly higher incidence risk during the incidence study period (1980–2009) in the population of the eastern flank 4.6/100,000 (95% CI 3.1–5.9), compared with the western population 3.2/100,000 (95% CI 2.4–4.2) with a RR of 1.41 (95% CI 0.97–2.05; p-value 0.06). Incidence risks have increased over the time in both populations reaching a peak of 6.4/100,000 in the eastern flank and of 4.4/100.000 in the western flank during 2000–2009. Conclusion: We found a higher prevalence and incidence of Multiple Sclerosis among populations living in the eastern flank of Mount Etna. According to our data a possible role of TE cannot be ruled out as possible co-factor in the MS pathogenesis. However larger epidemiological study are needed to confirm this hypothesis.
    Beschreibung: Published
    Beschreibung: e74259
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: JCR Journal
    Beschreibung: open
    Schlagwort(e): Mt. Etna volcano ; Multiple Sclerosis ; trace elements ; volcanic activity ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    Publikationsdatum: 2017-04-04
    Beschreibung: The continuous measurement of ground deformations is an important contribution to the monitoring of volcanic areas. When the volcano is totally or partially submerged, the traditional geodetic methods cannot be applied and the measures of seafloor deformation are extremely difficult and expensive. This paper describes the installation of a continuous GPS station on an elastic beacon. The measurements were conducted in the Campi Flegrei Caldera (Gulf of Pozzuoli, Naples), whose vertical displacements are related to the bradyseismic phenomenon. Experimental observations show that it’s possible to monitor vertical displacement of seafloor with a resolution of a few centimeters, also taking into account for measurement errors (due to weather and sea conditions acting on the elastic beacon). This non expensive technique is relevant at Campi Flegrei area, because it extends the ground deformation monitoring at sea, contributing to a better modeling of the deformation field.
    Beschreibung: Published
    Beschreibung: 1-18
    Beschreibung: 3A. Ambiente Marino
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): GPS; Volcano monitoring; seafloor deformatio ; 05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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