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  • Applied geophysics  (15)
  • Conference abstr.  (7)
  • 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis  (3)
  • JSTOR Archive Collection Business II
  • Seismic stratigraphy
  • Soc. Professional Well Log Analysts  (9)
  • Wiley  (9)
  • Am. Assoc. Petrol. Geologists  (8)
Erscheinungszeitraum
  • 1
    Publikationsdatum: 2017-04-04
    Beschreibung: We present the first application of a time reverse location method in a volcanic setting, for a family of long-period (LP) events recorded on Mt Etna. Results are compared with locations determined using a full moment tensor grid search inversion and cross-correlation method. From 2008 June 18 to July 3, 50 broad-band seismic stations were deployed on Mt Etna, Italy, in close proximity to the summit. Two families of LP events were detected with dominant spectral peaks around 0.9 Hz. The large number of stations close to the summit allowed us to locate all events in both families using a time reversal location method. The method involves taking the seismic signal, reversing it in time, and using it as a seismic source in a numerical seismic wave simulator where the reversed signals propagate through the numerical model, interfere constructively and destructively, and focus on the original source location. The source location is the computational cell with the largest displacement magnitude at the time of maximum energy current density inside the grid. Before we located the two LP families we first applied the method to two synthetic data sets and found a good fit between the time reverse location and true synthetic location for a known velocity model. The time reverse location results of the two families show a shallow seismic region close to the summit in agreement with the locations using a moment tensor full waveform inversion method and a cross-correlation location method.
    Beschreibung: Published
    Beschreibung: 452-462
    Beschreibung: 1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Volcano seismology ; Computational seismology ; Wave propagation ; 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology ; 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2017-04-04
    Beschreibung: In this study the attenuation mechanism of seismic wave energy in north central Italy is estimated using low-magnitude earthquake local data recorded at six stations managed by INGV. Most of the analysed events are located along the Alpine chain in the zone of Iseo and Garda lakes, while a minor part in the Po valley. The zone investigated is characterized by the occurrence of significantly intense earthquakes (magnitude up to 6.6) the most recent occurred in 2004 close to the city of Sal`o on the coast of the Garda lake (Mw = 5.0). Due to the high population density and presence of industrial activity the investigated area is characterized by a high seismic risk. First, the ordinary Multiple Lapse Time Window Analysis (MLTWA) method is applied in the assumption of uniformvelocity and scattering and the couple of B0, the seismic albedo and Le−1, the extinction length inverse (corresponding to the total attenuation coefficient) is calculated in the frequency bands of 1.5, 3, 6 and 12 Hz. To retrieve more realistic estimates, the obtained values of B0 and Le−1 are corrected taking into account the effects of a depth-dependent earth model, consisting of an earth structure characterized by a transparent upper mantle and a heterogeneous crust. We find that the corrected intrinsic and scattering attenuation parameters (which are proportional to the inverse of the intrinsic/scattering quality factors, QI−1 and Qs−1) are strongly frequency dependent, with a prevalence of scattering attenuation over the intrinsic dissipation. The corrected and uncorrected values of total Q are in agreement with the total Q values obtained with different approaches for the same area.
    Beschreibung: Published
    Beschreibung: 3.1. Fisica dei terremoti
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Seismic Attenuation ; Coda Waves ; Wave Scattering and Diffraction ; 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Publikationsdatum: 2017-04-04
    Beschreibung: We present the first application of a time reverse location method in a volcanic setting, for a family of long-period (LP) events recorded on Mt Etna. Results are compared with locations determined using a full moment tensor grid search inversion and cross-correlation method. From 2008 June 18 to July 3, 50 broad-band seismic stations were deployed on Mt Etna, Italy, in close proximity to the summit. Two families of LP events were detected with dominant spectral peaks around 0.9 Hz. The large number of stations close to the summit allowed us to locate all events in both families using a time reversal location method. The method involves taking the seismic signal, reversing it in time, and using it as a seismic source in a numerical seismic wave simulator where the reversed signals propagate through the numerical model, interfere constructively and destructively, and focus on the original source location. The source location is the computational cell with the largest displacement magnitude at the time of maximum energy current density inside the grid. Before we located the two LP families we first applied the method to two synthetic data sets and found a good fit between the time reverse location and true synthetic location for a known velocity model. The time reverse location results of the two families show a shallow seismic region close to the summit in agreement with the locations using a moment tensor full waveform inversion method and a cross-correlation location method.
    Beschreibung: In press
    Beschreibung: (11)
    Beschreibung: 1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Volcano seismology ; Computational seismology ; Wave propagation ; 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology ; 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at the 37th Annual Logging Symposium of SPWLA, Denver, Soc. Professional Well Log Analysts, vol. 1, no. paper SPWLA 90-C, pp. M1-M4, (ISBN 3-933346-037)
    Publikationsdatum: 1996
    Schlagwort(e): Physical properties of rocks ; Borehole geophys. ; Applied geophysics ; NMR ; NML ; Conference abstr.
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at the 37th Annual Logging Symposium of SPWLA, Washington, D.C., Soc. Professional Well Log Analysts, vol. C 560, 183 pp., no. 57, pp. AA1-AA13, (ISBN 3-933346-037)
    Publikationsdatum: 1996
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; Data analysis / ~ processing ; Fluids ; Conference abstr.
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at the 37th Annual Logging Symposium of SPWLA, Menlo Park, California, Soc. Professional Well Log Analysts, vol. 1034, no. 77-3, pp. Z1-Z13, (ISBN 3-933346-037)
    Publikationsdatum: 1996
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; Stress ; Data analysis / ~ processing ; Fluids ; Conference abstr.
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at the 37th Annual Logging Symposium of SPWLA, Hannover, Soc. Professional Well Log Analysts, vol. C 560, 183 pp., no. 23, pp. N1-N13, (ISBN 3-933346-037)
    Publikationsdatum: 1996
    Schlagwort(e): Physical properties of rocks ; Borehole geophys. ; Applied geophysics ; NMR ; NML ; Conference abstr.
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at the 37th Annual Logging Symposium of SPWLA, Washington, D.C., Soc. Professional Well Log Analysts, vol. C 560, 183 pp., no. 57, pp. I1-I14, (ISBN 3-933346-037)
    Publikationsdatum: 1996
    Schlagwort(e): Stress ; Stress measurements ; Borehole geophys. ; Conference abstr.
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at 36th Annual Logging Symposium of SPWLA, Cambridge, MA, USA, Soc. Professional Well Log Analysts, vol. 10, no. 18, pp. J1-J12
    Publikationsdatum: 1995
    Schlagwort(e): Stress ; Stress measurements ; Borehole geophys. ; Anisotropy ; Borehole Compensated Sonic log ; cracks and fractures (.NE. fracturing) ; Conference abstr. ; Fracture
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
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    Soc. Professional Well Log Analysts
    In:  Extended abstract at 36th Annual Logging Symposium of SPWLA, Bremerhaven, Soc. Professional Well Log Analysts, vol. 10, no. No. 31, pp. V1-V12, (ISBN 0 08 042822 3)
    Publikationsdatum: 1995
    Schlagwort(e): Elasticity ; porosity ; Rock mechanics ; Physical properties of rocks ; Conference abstr. ; Fluids ; Modelling ; Conference abstr.
    Standort Signatur Erwartet Verfügbarkeit
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  • 11
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    Soc. Professional Well Log Analysts
    In:  Paper presented at the National SPWLA Convention, Tulsa, Oklahoma, Soc. Professional Well Log Analysts, vol. 10, no. GL-TR-89-0314, pp. 627-635
    Publikationsdatum: 1994
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; NML ; Fluids
    Standort Signatur Erwartet Verfügbarkeit
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  • 12
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    Soc. Professional Well Log Analysts
    In:  Paper presented at the National SPWLA Convention, Midland, Texas, Soc. Professional Well Log Analysts, vol. 10, no. GL-TR-89-0314, pp. 627-635
    Publikationsdatum: 1991
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; NML ; Instruments ; Fluids
    Standort Signatur Erwartet Verfügbarkeit
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  • 13
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    Am. Assoc. Petrol. Geologists
    In:  Professional Paper, Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 14, no. 16, pp. 527-548, (ISBN 0080419208)
    Publikationsdatum: 1990
    Schlagwort(e): Applied geophysics ; Borehole geophys. ; Dipmeter, ~analysis ; Layers ; orientation
    Standort Signatur Erwartet Verfügbarkeit
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  • 14
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    Am. Assoc. Petrol. Geologists
    In:  Professional Paper, Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 23, no. 16, pp. 498-526, (ISBN: 3-540-23712-7)
    Publikationsdatum: 1990
    Schlagwort(e): Applied geophysics ; Borehole geophys. ; porosity ; conductivity
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  • 15
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    Am. Assoc. Petrol. Geologists
    In:  Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 37, no. 16, pp. 22-30, (ISBN 0080419208)
    Publikationsdatum: 1990
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; Review article ; porosity ; conductivity
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  • 16
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    Am. Assoc. Petrol. Geologists
    In:  Professional Paper, Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 14, no. 16, pp. 475-497, (ISBN 0080419208)
    Publikationsdatum: 1990
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; Dipmeter, ~analysis ; Layers ; orientation
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
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    Am. Assoc. Petrol. Geologists
    In:  Bull., Polar Proj. OP-O3A4, Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 14, no. 16, pp. 1-21, (ISBN: 3-540-23712-7)
    Publikationsdatum: 1990
    Schlagwort(e): Borehole geophys. ; Applied geophysics ; Handbook of geophysics
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  • 18
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    Am. Assoc. Petrol. Geologists
    In:  Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 17, no. 16, pp. 645-654, (ISBN 0080419208)
    Publikationsdatum: 1990
    Schlagwort(e): MWD ; LWD ; Borehole geophys. ; Applied geophysics ; Engineering geophys.
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
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    Am. Assoc. Petrol. Geologists
    In:  Bull., Open-File Rept., Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 10, no. 16, pp. 635-644, (ISBN 0080419208)
    Publikationsdatum: 1990
    Schlagwort(e): Applied geophysics ; Borehole geophys. ; Seismics (controlled source seismology)
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
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    Am. Assoc. Petrol. Geologists
    In:  Professional Paper, Open-File Rept., Formation Evaluation I - Log Evaluation, Tulsa, Oklahoma, Am. Assoc. Petrol. Geologists, vol. 65, no. 16, pp. 591-609, (ISBN 1-86239-165-3, vi + 330 pp.)
    Publikationsdatum: 1990
    Schlagwort(e): Applied geophysics ; Borehole geophys. ; Borehole Televiewer ; Layers ; orientation
    Standort Signatur Erwartet Verfügbarkeit
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  • 21
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    Wiley
    In:  New York, 3rd Edition, 538 pp., Wiley, vol. 14, no. 1, pp. 1-40, (ISBN 3-7643-6675-3)
    Publikationsdatum: 1987
    Schlagwort(e): Reflection seismics ; Textbook of geophysics ; Applied geophysics
    Standort Signatur Erwartet Verfügbarkeit
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  • 22
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    Wiley
    In:  Chichester, Wiley, vol. 231, no. 3, pp. 2-203, (ISBN 0-470-02298-1)
    Publikationsdatum: 1982
    Schlagwort(e): Data analysis / ~ processing ; Correlation ; Seismic stratigraphy ; Seismics (controlled source seismology)
    Standort Signatur Erwartet Verfügbarkeit
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  • 23
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    Wiley
    In:  New York, Wiley, vol. 7, no. Publ. No. 12, pp. 127, (ISBN 1-58488-323-5)
    Publikationsdatum: 1978
    Schlagwort(e): Seismic stratigraphy
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  • 24
    Journal cover
    Unbekannt
    Wiley | JSTOR | formerly Oxford University Press (OUP)
    Online: 10(1).1988 –
    Vormals: Illinois Agricultural Economics; North Central Journal of Agricultural Economics; Review of Agricultural Economics  (1961–2009)
    Verlag: Wiley , JSTOR , formerly Oxford University Press (OUP)
    Print ISSN: 0191-9016 , 1058-7195 , 2040-5790
    Digitale ISSN: 1467-9353 , 2040-5804
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Wirtschaftswissenschaften
    Schlagwort(e): JSTOR Archive Collection Business II
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  • 25
    Journal cover
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    Wiley | JSTOR
    Online: 78.1976 – (older than 6 years)
    Verlag: Wiley , JSTOR
    Print ISSN: 0347-0520
    Digitale ISSN: 1467-9442
    Thema: Wirtschaftswissenschaften
    Schlagwort(e): JSTOR Archive Collection Business II
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  • 26
    Journal cover
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    Wiley | Financial Management Association International | JSTOR
    Online: 1(1).1972 – (older than 4 years)
    Verlag: Wiley , Financial Management Association International , JSTOR
    Print ISSN: 0046-3892
    Digitale ISSN: 1755-053X
    Thema: Wirtschaftswissenschaften
    Schlagwort(e): JSTOR Archive Collection Business II
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