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  • Articles  (1,695,591)
  • Springer  (1,048,691)
  • American Chemical Society  (559,076)
  • BioMed Central  (87,824)
  • 2020-2022  (219,288)
  • 2015-2019  (773,546)
  • 2010-2014  (702,757)
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  • 1
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    Seismological analyses of the seismic microzonation of 138 municipalities damaged by the 2016–2017 seismic sequence in Central Italy (2019)
    Springer
    Details
    Publication Date: 2023-11-21
    Description: This paper describes the seismological analyses performed within the framework of the seismic microzonation study for the reconstruction of 138 municipalities damaged by the 2016–2017 sequence in Central Italy. Many waveforms were recorded over approximately 15 years at approximately 180 instrumented sites equipped with permanent or temporary stations in an area that includes all the damaged localities. Site response was assessed using earthquake and noise recordings at the selected stations through different parameters, such as spectral amplification curves, fundamental resonance frequencies, site-specific response spectra, and average amplification factors. The present study was a collaboration of many different institutions under the coordination of the Italian Center for Seismic Microzonation and its applications. The results were homogenized and gathered into site-specific forms, which represent the main deliverable for the benefit of Italian Civil Protection. It is remarkable that the bulk of this study was performed in a very short period (approximately 2 months) to provide quantitative information for detailed microzonation and future reconstruction of the damaged municipalities.
    Description: Published
    Description: 5553–5593
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Site response analyses for complex geological and morphological conditions: relevant case-histories from 3rd level seismic microzonation in Central Italy (2019)
    Springer
    Details
    Publication Date: 2023-11-16
    Description: The paper presents the results of 5 case studies on complex site e ects selected within the project for the level 3 seismic microzonation of several municipalities of Central Italy dam- aged by the 2016 seismic sequence. The case studies are characterized by di erent geo- logical and morphological con gurations: Monte San Martino is located along a hill slope, Montedinove and Arquata del Tronto villages are located at ridge top whereas Capitignano and Norcia lie in correspondence of sediment- lled valleys. Peculiarities of the sites are constituted by the presence of weathered/jointed rock mass, fault zone, shear wave veloc- ity inversion, complex surface and buried morphologies. These factors make the de ni- tion of the subsoil model and the evaluation of the local response particularly complex and di cult to ascertain. For each site, after the discussion of the subsoil model, the results of site response numerical analyses are presented in terms of ampli cation factors and acceleration response spectra in selected points. The physical phenomena governing the site response have also been investigated at each site by comparing 1D and 2D numerical analyses. Implications are deduced for seismic microzonation studies in similar geological and morphological conditions.
    Description: Published
    Description: 5741–5777
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: JCR Journal
    Keywords: Seismic microzonation ; Ampli cation factors ; Response spectra ; Numerical analyses ; site response
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 3
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    Marine Anthropogenic Litter (2015)
    Springer
    In:  EPIC3Berlin, Springer, 447 p., ISBN: 978-3-319-16510-3
    Details
    Publication Date: 2023-06-21
    Description: This book describes how manmade litter, primarily plastic, has spread into the remotest parts of the oceans and covers all aspects of this pollution problem from the impacts on wildlife and human health to socio-economic and political issues. Marine litter is a prime threat to marine wildlife, habitats and food webs worldwide. The book illustrates how advanced technologies from deep-sea research, microbiology and mathematic modelling as well as classic beach litter counts by volunteers contributed to the broad awareness of marine litter as a problem of global significance. The authors summarise more than five decades of marine litter research, which receives growing attention after the recent discovery of great oceanic garbage patches and the ubiquity of microscopic plastic particles in marine organisms and habitats. In 16 chapters, authors from all over the world have created a universal view on the diverse field of marine litter pollution, the biological impacts, dedicated research activities, and the various national and international legislative efforts to combat this environmental problem. They recommend future research directions necessary for a comprehensive understanding of this environmental issue and the development of efficient management strategies. This book addresses scientists, and it provides a solid knowledge base for policy makers, NGOs, and the broader public.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Book , peerRev
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  • 4
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    Continental deformation of Antarctica during Gondwana’s breakup (2013)
    Springer
    In:  EPIC3Earth System Science: Bridging the gaps between disciplines—A multi-disciplinary Helmholtz Graduate Research School, Berlin Heidelberg, Springer, 7 p., pp. 83-89, ISBN: 978-3-642-32235-8
    Details
    Publication Date: 2023-06-21
    Description: Geophysical data acquired along the Antarctic passive margins constrain the structure and geometry of the deformed continental crust. Crustal thickness estimates range between 7 and 50 km and the Antarctic continent–ocean transition zone (COTZ) extends up to 100–670 km towards the ocean. Continental deformation prior to rifting over a c. 100 million years long time span resulted in crustal stretching factors varying between 1.8 and 5.9. The time span of deformation was sufficiently large and the rifting velocity low enough to extend the margin by up to 300–400 km. Crustal thinning generates a significant subsidence and shallow water passages might already have developed during the rifting phase along the margin. Accounting for accurate continental margin deformation has also consequences for plate-tectonic reconstructions.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 5
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    The Significance of the long lived (〉400 Years) bivalve Arctica islandica as a high-resolution bioarchive (2013)
    Springer
    In:  EPIC3Earth system science: bridging the gap between disciplines, Earth system science: bridging the gap between disciplines, Heidelberg, Springer, 7 p., pp. 97-103, ISBN: 978-3-642-32234-1
    Details
    Publication Date: 2023-06-21
    Description: Information about past environmental conditions is preserved in the elemental signature of biogenic marine carbonates. Thus, trace element to calcium ratios (Me/Ca) of biogenic calcium carbonates, such as bivalve shells, are often used to reconstruct past environmental conditions at the time of carbonate formation (Foster et al., 2008). In this study, we examine the suitability of the long-lived (〉 400 years) bivalve Arctica islandica as a high-resolution bioarchive by measuring Me/Ca ratios in the shell carbonate. Pb/Ca concentrations in A. islandica shells reflect anthropogenic gasoline lead consumption and further provide a centennial record of lead pollution for the collection site off the coast of Virginia, USA. With A. islandica shells from the North Sea we test the hypothesis that Ba/Ca and Mn/Ca ratios are indicators of the diatom abundance. Our results indicate that statistically both ratios correlate well with the diatom abundance, and yet, on a year-to-year base, there is no consistent reflection of diatom abundance patterns in the Ba/Ca and Mn/Ca annual profiles. These findings indicate that primary production affects Ba/Ca and Mn/Ca shell ratios, though we suggest that both elements are coupled to primary production through different processes and are affected by further, yet unknown processes.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 6
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    Seaweed and Man (2012)
    Springer
    In:  EPIC3Seaweed Biology: Novel Insights into Ecophysiology, Ecology and Utilization, Seaweed Biology: Novel Insights into Ecophysiology, Ecology and Utilization, Heidelberg, Berlin, Springer, 509 p., pp. 471-493, ISBN: 978-3642284502
    Details
    Publication Date: 2023-06-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 7
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    Impact of Sea-Ice Bottom Topography on the Ekman Pumping (2015)
    Springer
    In:  EPIC3Towards an Interdisciplinary Approach in Earth System Science, (Springer Earth System Sciences), Heidelberg [u.a.], Springer, Toward, 251 p., pp. 139-148, ISBN: 978-3-319-13865-7
    Details
    Publication Date: 2023-06-21
    Description: Sea-ice elevation profiles and thickness measurements have been collected during summer 2011 in the Central Arctic. These two different data sets have been combined in order to obtain surface and bottom topography of the sea-ice. From the bottom profile, the keels of ridges are detected. Then, a parameterization of oceanic drag coefficients that accounts for the keels depth and density is applied. The calculated oceanic drag coefficients are highly variable (between about 2 × 10−3 and about 8 × 10−3) within the range of observed values. In order to estimate the contribution of variable drag coefficients on the Ekman pumping, the calculated drag coefficients are used in an idealized model experiment, where sea ice is drifting at constant velocity on an ocean at rest. The resulting variations of the Ekman vertical velocity are in the same order of magnitude as for variable ice velocity at the surface. In most state-of-the-art general circulation models, the variations of drag coefficients are not taken into account. The simple experiment carried out in the present study suggests that neglecting this contribution can lead to an incorrect representation of the momentum exchange between ice and ocean and to an underestimation of the Ekman pumping, with consequences for the large scale ocean circulation.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 8
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    Earth System Science—Past Experiences and Future Trends (2015)
    Springer
    In:  EPIC3Towards an Interdisciplinary Approach in Earth System Science, Earth System Science—Past Experiences and Future Trends, Heidelberg, Springer, pp. 3-7, ISBN: 978-3-319-13864-0, ISSN: 2197-9596
    Details
    Publication Date: 2023-06-21
    Description: Earth System Science has developed over the last two decades from an interesting concept in Earth sciences education to a fully integrative science focussed on understanding the complex system Earth. This evolution is partially due to the radical and far reaching anthropogenic changes and the general feeling of helplessness with regards to the possible consequences and future impacts on the Earth System. This paper proposes that a paradigm shift in undergraduate and graduate education is needed to further develop Earth System Science. Graduate programs such as the Earth System Science Research School (ESSReS), which are intrinsically trans- and interdisciplinary will help to change rigid subject specific mind-set among faculty and students. The health and sustainability of our planet is at stake
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 9
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    Integration of Passive Tracers in a Three-Dimensional Ice Sheet Model (2015)
    Springer
    In:  EPIC3Towards an Interdisciplinary Approach in Earth System Science, Towards an Interdisciplinary Approach in Earth System Science, Heidelberg, Springer, pp. 161-170, ISBN: 978-3-319-13864-0, ISSN: 2197-9596
    Details
    Publication Date: 2023-06-21
    Description: Components of the climate system, such as ice sheets and marine sediments serve as invaluable archives, which can be tapped into, to reconstruct paleoclimate conditions. The relative abundance of hydrogen and oxygen isotopes in ice cores is a proxy for past local temperature evolution. However the translation of these proxies into temperature is not straightforward. Complex interdependencies in the climate system can hide or override the local climate signal at which the ice core was drilled. Using 3D ice sheet modelling in concert with passive tracer advection one can simulate the isotopic distribution in ice sheets and compare them to ice core data. Combining this method in a coupled climate model environment, containing atmosphere and ocean components, one can theoretically simulate the isotopic cycle from the source to the actual ice record. Such an approach would greatly support the interpretation of proxy data whilst constraining the output of 3D ice sheet models (ISMs). We present the implementation of passive tracer advection in our 3D ISM RIMBAY (Thoma et al. in Geosci Model Dev 1:1–21, 2014, Goeller et al. in Cryosphere 7:1095–1106, 2014) and asses the potential of the method to reproduce chronologies of the polar ice sheets
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 10
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    Reflection/refraction seismology (2016)
    Springer
    In:  EPIC3Encyclopedia of Marine Geosciences, (Encyclopedia of Earth Sciences Series), Dordrecht, Springer, pp. 721-731, ISBN: 978-94-007-6644-0
    Details
    Publication Date: 2023-06-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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