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  • 1
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    Crustal magnetism of the Southern Tyrrhenian Sea from aeromagnetic surveys (2007)
    In:  Geological Society Special Publication 262: 337-348.
    Details
    Publication Date: 2007-10-08
    Description: Aeromagnetic data from the Southern Tyrrhenian Sea have been analysed, to remove the contributions of shallow and deep sources to the magnetic anomalies by applying a processing technology that increases the informative potential of the magnetic data acquired by AGIP with great accuracy, uniform distribution and high density. The aeromagnetic anomaly field has been reduced to the bottom topographic surface by the bottom reduction method. Spectral signal analysis has been carried out to separate low- and high-frequency components. The spectral reference field (SRF), obtained from the cotransformation of low frequencies, gives information about deep magnetic structures. The high-frequency components, computed from the difference between the magnetic anomaly field and the SRF, provides the spectral anomaly field (SAF). The bottom reduced magnetic anomaly field is derived by merging the high- and low-frequency bands. The resulting map provides information about geotectonic features in the Southern Tyrrhenian area and shows the effectiveness of the adopted approach over traditional procedures.
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  • 2
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    A topographic surface reduction of aeromagnetic anomaly field over the Tyrrhenian sea area (Italy) (2003)
    Springer
    Details
    Publication Date: 2003-09-01
    Print ISSN: 0025-3235
    Electronic ISSN: 1573-0581
    Topics: Geosciences , Physics
    Published by Springer
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  • 3
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    Crustal magnetism of the Southern Tyrrhenian Sea from aeromagnetic surveys (2006)
    Geological Society of London
    Details
    Publication Date: 2006-01-01
    Print ISSN: 0305-8719
    Electronic ISSN: 2041-4927
    Topics: Geosciences
    Published by Geological Society of London
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  • 4
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    Geo-electromagnetic research aids geo-hazard mitigation (2002)
    American Geophysical Union
    Details
    Publication Date: 2002-01-01
    Print ISSN: 0096-3941
    Electronic ISSN: 2324-9250
    Topics: Geosciences
    Published by American Geophysical Union
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  • 5
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    A new EMAG metrological approach for submarine detection: fundamentals of the numerical protocols and preliminary field performance (2015)
    Details
    Publication Date: 2020-12-15
    Description: The characteristics of the geomagnetic field and its artificial components make the capability of reading and classifying large underwater cinematic sources (e.g. submarines) somewhat random. As an example the “ASW far detection procedure” is also affected by the induced magnetic field produced by man-made telluric currents. This could generate some dangerous false alarm. The problem is not an instrumental issue related to the instrument precision of the sensor (commercial magnetometers have precisions greater than the one required by the application) but a classical metrological matter that could be overcome with a correct measurement procedure. This moves the problem from technological to phenomenological aspects. By applying the C.A.I.MA.N. (Coastal Anti-Intruder MAgnetometric Network) experience, inter-nodal distances in the observation chain were calculated so as to correlate the noise and de-correlate the target signal (source type SU.S. "SUbmarine Standard"). By means of C.A.I.MA.N. protocols, targets signal contained in the “detection magnetogram” F(target) was isolated from F(noise+target) magnetogram using F(noise) (that includes also natural variations) as Time-Domain filter, and then submitted to standard LP procedure to increase the information capability. Finally, to overcome metrological problems related to the low incremental ratio [∂F/∂s]ds of the detected signal, we propose a power domain analysis of the detection magnetogram. Also without a dedicated technology, in a preliminary experiment for SU.S. detection the C.A.I.MA.N. anti-intruder system has been occasionally modified: the first results obtained in this study were found encouraging and further detailed investigations within this framework should be undertaken in a future study.
    Description: Published
    Description: IFA, Spain
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: restricted
    Keywords: underwater detection systems, port protection, magnetic signal processing, underwater magnetometers array
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
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  • 6
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    Misure ambientali in mare aperto: sviluppo di tecnologie per l'acquisizione e l'analisi di dati meteo-mareografici misurati da una boa oceanografica in Mar Ligure (2008)
    Details
    Publication Date: 2020-12-02
    Description: Obiettivo del presente lavoro è lo sviluppo di un metodo di analisi in grado di stimare i parametri fondamentali del moto ondoso, a partire dai dati acquisiti da tre altimetri acustici installati a bordo di una boa meteo-oceanografica operante in mare aperto. Il metodo di analisi sviluppato compie opportune operazioni di filtraggio sulle sequenze temporali delle misure effettuate dai tre altimetri, quindi, elaborando tali sequenze, fornisce le stime di alcuni parametri caratteristici del moto ondoso (tra cui l’altezza e la direzione di propagazione). I diversi tipi di filtraggio ed il metodo di stima sviluppati si basano sul calcolo di alcuni parametri statistici (tra cui media, mediana e deviazione standard) delle serie temporali di dati acquisiti, sulla conoscenza delle loro densità spettrali di potenza (calcolate mediante FFT), e sul calcolo delle funzioni di crosscorrelazione delle sequenze di dati prese a due a due. Il procedimento di stima realizzato è stato sperimentato su una notevole quantità di dati reali acquisiti in Mar Ligure tramite l’utilizzo della stazione di misura fissa su cui sono montati gli altimetri acustici, ed ha fornito risultati soddisfacenti per quanto riguarda affidabilità e precisione. Nell’ambito della valutazione delle prestazioni del sistema di acquisizione dati e del metodo di stima, i risultati ottenuti sono stati confrontati con misure provenienti da altri sensori a bordo della stazione e con stime analoghe effettuate a partire dai dati acquisiti da un’altra stazione di misura, operante anch’essa in Mar Ligure, ma dotata di strumentazione di altro tipo.
    Description: Published
    Description: Consiglio Nazionale delle Ricerche Piazzale Aldo Moro 7 14-16 dicembre 2004
    Description: 1.8. Osservazioni di geofisica ambientale
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: 3.8. Geofisica per l'ambiente
    Description: open
    Keywords: monitoraggio ambientale ; oceanografia ; ondametria ; altimetri acustici ; 03. Hydrosphere::03.01. General::03.01.02. Equatorial and regional oceanography ; 03. Hydrosphere::03.01. General::03.01.04. Ocean data assimilation and reanalysis ; 03. Hydrosphere::03.01. General::03.01.08. Instruments and techniques ; 05. General::05.01. Computational geophysics::05.01.01. Data processing ; 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
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  • 7
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    Development of Anti Intruders Underwater Systems: Time Domain Evaluation of the Self-informed Magnetic Networks Performance (2008)
    Springer-Verlag Berlin Heidelberg
    Details
    Publication Date: 2017-04-04
    Description: This paper shows the result obtained during the operative test of an anti-intrusion undersea magnetic system based on a magnetometers’ new self-informed network. The experiment takes place in a geomagnetic space characterized by medium-high environmental noise with a relevant human origin magnetic noise component. The system has two different input signals: the magnetic background field (natural + artificial) and a signal composed by the magnetic background field and the signal due to the target magnetic field. The system uses the first signal as filter for the second one to detect the target magnetic signal. The effectiveness of the procedure is related to the position of the magnetic field observation points (reference devices and sentinel devices). The sentinel devices must obtain correlation in the noise observations and de-correlations in the target signal observations. The system, during four tries of intrusion, has correctly detected all magnetic signals generated by divers.
    Description: Published
    Description: 100-1007
    Description: 1.6. Osservazioni di geomagnetismo
    Description: 2.5. Laboratorio per lo sviluppo di sistemi di rilevamento sottomarini
    Description: 3.4. Geomagnetismo
    Description: reserved
    Keywords: Critical Systems ; Port Protection ; Magnetic Systems ; 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies ; 04. Solid Earth::04.05. Geomagnetism::04.05.08. Instruments and techniques ; 05. General::05.01. Computational geophysics::05.01.01. Data processing ; 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 8
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    The geomagnetic model of the Mount Capanne pluton (Elba Island) (2009)
    Accademia Lunigianese di Scienze "G. Capellini" La Spezia - Memorie (allegato)
    Details
    Publication Date: 2017-04-04
    Description: We show the 2.5 geomagnetic model of the granitic pluton of West Elba Island. The model is obtained by the TaE thecnique interpretation of the geomagnetic anomaly field....
    Description: Unpublished
    Description: Villa Marigola, Lerici, La Spezia, Italy
    Description: 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive
    Description: open
    Keywords: geomagnetic model ; Elba Island ; 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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  • 9
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    The Fermi function performance in geomagnetic data inversion (2009)
    Accademia Lunigianese di Scienze "G. Capellini" La Spezia - Memorie (allegato)
    Details
    Publication Date: 2017-04-04
    Description: We present a method for inversion of geomagnetic data for 3D source's magnetization modeling based on a generalization of the well known Fermi Distribution Function.....
    Description: Unpublished
    Description: Villa Marigola, Lerici, La Spezia, Italy
    Description: 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive
    Description: open
    Keywords: inversion of geomagnetic data ; modeling ; 05. General::05.01. Computational geophysics::05.01.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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  • 10
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    Sperimentazione in osservatorio di un nuovo magnetometro a vapore di potassio pompato da laser a diodo (2009)
    Riassunti Estesi delle Comunicazioni - GNGTS XVII
    Details
    Publication Date: 2017-04-04
    Description: Nel Dipartimento di Fisica dell'Università di Pisa e' stato sviluppato un nuovo tipo di magnetometro a vapore di alcalino, basato sulla misura della frequenza di risonanza Zeeman dell'atomo di potassio .....
    Description: Unpublished
    Description: Roma, Italia
    Description: 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive
    Description: open
    Keywords: magnetometro alcalino ; risonanza Zeeman ; 04. Solid Earth::04.02. Exploration geophysics::04.02.07. Instruments and techniques
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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