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  • 1
    Publication Date: 2014-07-29
    Description: Author(s): S. Caracciolo, C. Lucibello, G. Parisi, and G. Sicuro Mathematical tools from physics are enabling new ways to study a classic optimization problem. [Phys. Rev. E 90, 012118] Published Mon Jul 21, 2014
    Keywords: Statistical Physics
    Print ISSN: 1539-3755
    Electronic ISSN: 1550-2376
    Topics: Physics
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  • 2
    Publication Date: 2008-04-09
    Description: The drop size distribution (DSD) is a fundamental property of rainfall because the shape of the distribution reflects the physics of rain formation processes. Given the lack of studies on the DSD at mid-latitudes, the present work focuses on the microphysical characterization of precipitation events occurring in Italy, using two different types of disdrometer. A large number of different rain events was collected: they underwent microphysical analysis by computing the Z-R relationships, observing the average DSDs and DSD parameters, fitting the real distribution for different rainfall rate categories and applying convective (C) – stratiform (S) discrimination algorithms. A general agreement with past works at mid-latitudes is found both in the Z-R relationship and in DSD parameters. The rain distribution is well described by a gamma DSD and only in some cases (especially the light rain events) by an exponential DSD. Marked differences are observed in DSD parameters and Z-R relationships between C and S episodes. The use of disdrometers for areas covered by multiparametric radar is suggested and will be performed in the near future.
    Print ISSN: 1680-7340
    Electronic ISSN: 1680-7359
    Topics: Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 3
    Publication Date: 2008-07-04
    Description: During the research project RIADE (Ricerca Integrata per l'Applicazione di tecnologie e processi innovativi per la lotta alla DEsertificazione), devoted to the study on the potential risk of desertification in Southern Italy, a particular attention has been paid also to the analysis of precipitations from three surface stations (Licata, Sicily; Rotondella, Basilicata; Surigheddu, Sardinia) in order to improve the knowledge derived from the most modern climatological studies related to this subject. The point of view adopted is to better define the precipitation microphysical properties (in particular, the Drop Size Distribution, DSD, and its moments), which are deeply related to the cloud system that generates the precipitation events. In particular we have used a newly introduced Convective Stratiform discrimination technique, that allowed us to observe a prevalence of events, concentrated along Winter (Wi) season, of different microphysical nature. In fact the prevailing Stratiform nature is related to Licata station, while for Surigheddu and for Rotondella the nature is mainly Convective. This distinction is related to the presence of drops of bigger dimensions and more intense precipitations in the latter case, while, in the former case, a prevalence of smaller drops and a less intense precipitation is recorded. This confirms the distinctive belonging to three different climatic regions, as indicated in the study by Brunetti et al. (2006). Our findings are important in the framework of desertification studies, because the cause of desertification can be related either to fertile soils removal (in the case of Convective events) or to lack of precipitated water (in the case of Stratiform events). We have also analysed a sub-set of ten events, with contemporary presence of data from VIS/IR channels of METEOSAT-7, SSM/I data from F13 and MODIS data from Terra platform. This has been done both to confirm the findings of PLUDIX data analysis (which is, in fact, confirmed) and to show the capability of PLUDIX to detect the fast local variations related to the temporal evolution of more extended systems. The potentiality of PLUDIX as a real-time detector of precipitation events, together with the development of an adequate number of algorithms, that give a complete microphysical description of the observed events, finally, opens the way for developing a new Present Weather Sensor.
    Print ISSN: 0992-7689
    Electronic ISSN: 1432-0576
    Topics: Geosciences , Physics
    Published by Copernicus on behalf of European Geosciences Union.
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  • 4
    Publication Date: 2006-05-01
    Print ISSN: 0169-8095
    Electronic ISSN: 1873-2895
    Topics: Geosciences , Physics
    Published by Elsevier
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  • 5
    Publication Date: 2017-04-04
    Description: In the summer of 1561, a strong seismic sequence struck southern Italy, then the Spanish-ruled Kingdom of Naples. Both the Italian seismological tradition and the latest catalogues locate it in the Vallo di Diano (Diano Valley), a low-seismicity intermontane basin 100 km south-east of Naples. We explore the hypothesis that current perception of the 1561 earthquake is distorted by the nature of the historical dataset from which its parameters have been assessed, and which mostly derive from a single - albeit very detailed - primary source. We present and discuss several previously unconsidered original accounts. Our results cast doubts on the traditional interpretation of the earthquake, which could have been either one Vallo di Diano mainshock or several strong earthquakes within a time/space window compact enough for contemporary viewers to perceive them as one. Unquestionably, there is much more to the 1561 earthquake(s) than previously appeared. We hope that this groundbreaking effort will rekindle the interest of the seismological community in this seismic episode, our knowledge of which is still far from complete.
    Description: In press
    Description: 3.10. Sismologia storica e archeosismologia
    Description: JCR Journal
    Description: open
    Keywords: seismicity, 1561 earthquakes, active faults, seismotectonics ; Vallo di Diano (southern Italy) ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: manuscript
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  • 6
    Publication Date: 2017-04-04
    Description: La lunga e solida tradizione italiana di studi storici sui terremoti ha reso disponibile, negli ultimi decenni, un insieme di dati di indiscusso valore, contribuendo in modo decisivo agli studi di pericolosità su scala nazionale, oltre che alla definizione di dettaglio delle caratteristiche della sismicità di molte aree. Se il patrimonio di informazioni storico-sismologiche italiano è il più importante al mondo, questo non significa affatto che si sappia tutto sulla sismicità del territorio nazionale. Questa considerazione appare scontata, e nelle valutazioni di pericolosità se ne tiene conto attraverso stime di completezza del catalogo, di tipo statistico o storico. La questione è quantomai complessa, soprattutto in riferimento ad aree periferiche dal punto di vista storico-culturale e a periodi storici particolarmente complessi. Un periodo storico critico è quello a ridosso del secondo conflitto mondiale e, come hanno evidenziato alcuni studi recenti (Tertulliani et al., 2007; 2008), in questo periodo inevitabilmente le vicende sismiche passano in secondo piano, portando alla perdita di informazioni importanti. Il caso che si va a presentare è particolarmente significativo, in quanto si tratta di un terremoto (relativamente) forte, sicuramente molto importante per le valutazioni di pericolosità sismica. Si tratta dell’evento principale di una lunga e complessa sequenza che per tutto l’anno 1949 interessa il reatino, curiosamente rappresentata nei cataloghi parametrici correnti solo da scosse minori (una settantina nel catalogo Postpischl, 1985, due nel catalogo CPTI04), dimenticando l’evento principale, che produsse danni gravi in alcune località dell’area, in particolare a Rivodutri e Morro Reatino, per la cui storia sismica questo evento rappresenta decisamente il massimo storico. Il presente lavoro ricostruisce attentamente il complesso quadro degli effetti, attraverso lo spoglio accurato di numerose corrispondenze giornalistiche e alcune indagini archivistiche, cercando anche di spiegare le ragioni che hanno prodotto la perdita di queste informazioni nei cataloghi correnti, tenendo conto dei risultati di un recente lavoro (Tertulliani et al., 2008), che ha riportato alla luce alcune eventi minori, verificatisi durante il secondo conflitto mondiale.
    Description: Published
    Description: Trieste (Italy)
    Description: 3.10. Sismologia storica e archeosismologia
    Description: open
    Keywords: Sequenze sismiche ; Reatino ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Extended abstract
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  • 7
    Publication Date: 2017-04-04
    Description: The recent seismological literature recorded three strong earthquakes in Algeria, Libya and Tunisia between 1656 and 1694 AD. The historical evidence for these derives from European sources only (gazettes, journalistic pamphlets, missionary literature). Considering the kind of sources involved, their likely biases and the geographical distances that divided their places of production from the places that they spoke about, it is possible that some of these accounts could be less than reliable, and therefore have little use as materials from which to assess earthquake parameters. To answer these doubts, we have retrieved, cross-checked and critically analysed the original historical sources quoted in previous compilations and studies.
    Description: Published
    Description: 163-184
    Description: 5.1. TTC - Banche dati e metodi macrosismici
    Description: reserved
    Keywords: Historical Seismicity ; North Africa Earthquakes ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 8
    Publication Date: 2017-04-04
    Description: In the summer of 1561, a strong seismic sequence struck southern Italy, then the Spanish-ruled Kingdom of Naples. Both the Italian seismological tradition and the latest catalogues locate it in the Vallo di Diano (Diano Valley), a low-seismicity intermontane basin 100 km south-east of Naples. We explore the hypothesis that current perception of the 1561 earthquake is distorted by the nature of the historical dataset from which its parameters have been assessed, and which mostly derive from a single—albeit very detailed—primary source. We present and discuss several previously unconsidered original accounts. Our results cast doubts on the traditional interpretation of the earthquake, which could have been either one Vallo di Diano mainshock or several strong earthquakes within a time/space window compact enough for contemporary viewers to perceive them as one. Unquestionably, there is much more to the 1561 earthquake(s) than previously appeared. We hope that this groundbreaking effort will rekindle the interest of the seismological community in this seismic episode, our knowledge of which is still far from complete.
    Description: Published
    Description: 1054-1077
    Description: 5.1. TTC - Banche dati e metodi macrosismici
    Description: JCR Journal
    Description: reserved
    Keywords: Hitorical Seismicity ; 1561 Earthquakes ; Active Faults ; Seismotectonics ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 9
    Publication Date: 2017-04-04
    Description: The recent seismological literature recorded three strong earthquakes in Algeria, Libya and Tunisia between 1656 and 1694 AD. The historical evidence for these derives from European sources only (gazettes, journalistic pamphlets, missionary literature). Considering the kind of sources involved, their likely biases and the geographical distances that divided their places of production from the places that they spoke about, it is possible that some of these accounts could be less than reliable, and therefore have little use as materials from which to assess earthquake parameters. To answer these doubts, we have retrieved, cross-checked and critically analysed the original historical sources quoted in previous compilations and studies.
    Description: Unpublished
    Description: 3.10. Sismologia storica e archeosismologia
    Description: open
    Keywords: Historical Seismology ; North Africa Earthquakes ; Early journalistic sources ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 10
    Publication Date: 2017-04-04
    Description: 1 CD-ROM allegato
    Description: Nel catalogo CPTI04 [Gruppo di Lavoro CPTI, 2004], un numero consistente di terremoti è tutt’ora privo di uno studio di riferimento recente. Nel corso di questo lavoro sono stati studiati 851 di questi terremoti: si tratta di eventi con Io tra il V-VI e il VII grado MCS, verificatisi dal 1198 al 1980 ma soprattutto nel Novecento, i cui parametri epicentrali derivano dal catalogo PFG [Postpischl, 1985a]. Questi eventi sono stati sottoposti a una sistematica revisione, adottando una procedura speditiva omogenea e rigorosa che ha permesso di elaborare nuovi parametri per 741 su 851 terremoti studiati. Nei restanti 110 casi lo studio ha portato a riconoscere 26 degli eventi studiati come inesistenti o estremamente dubbi. In 84 casi, infine, le informazioni storiche raccolte non sono risultate sufficienti per l’elaborazione di nuovi parametri. Il valore di intensità epicentrale è diminuito nel 72% dei casi e aumentato solo nel 4.5% di essi; il 50 % circa dei terremoti rivisti ha un’intensità epicentrale inferiore alla soglia attualmente adottata dal catalogo. Si notano anche significative variazioni nella localizzazione di alcuni dei terremoti rivisti. I risultati del lavoro sono riassunti in 851 schede di sintesi e circa 12.500 punti d’intensità osservati, che sono presentati in questo Quaderno insieme a una sintetica introduzione metodologica.
    Description: Published
    Description: 1-75
    Description: 5.1. TTC - Banche dati e metodi macrosismici
    Description: N/A or not JCR
    Description: open
    Keywords: catalogo dei terremoti italiani ; sismicità minore ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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