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  • Elsevier  (136,775)
  • MDPI Publishing
  • PANGAEA
  • Periodicals Archive Online (PAO)
  • 2025-2025  (2)
  • 2015-2019  (151,203)
  • 2005-2009  (2)
  • 1965-1969
  • 2015  (151,203)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    A measurement of τ polarization in Z^0 decays (1992-8977)
    Amsterdam : Elsevier
    Physics Letters B 294 (1992), S. 466-478 
    Details
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0370-2693(92)91549-O
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Measurement of the average lifetime of b hadrons (1993-4325)
    Amsterdam : Elsevier
    Physics Letters B 317 (1993), S. 474-484 
    Details
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0370-2693(93)91027-K
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  • 3
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    The deep structure of the Larderello-Travale geothermal field (Italy) from integrated, passive seismic investigations (2015)
    Elsevier
    Details
    Publication Date: 2021-07-14
    Description: We report the preliminary results from a project (GAPSS-Geothermal Area Passive Seismic Sources), aimed at testing the resolving capabilities of passive exploration methods on a well-known geothermal area, namely the Larderello-Travale Geothermal Field (LTGF). Located in the western part of Tuscany (Italy), LTGF is the most ancient geothermal power field of the world. GAPSS consisted of up to 20 seismic stations deployed over an area of about 50 x 50 Km. During the first 12 months of measurements, we located more than 2000 earthquakes, with a peak rate of up to 40 shocks/day. Preliminary results from analysis of these signals include: (i) analysis of Shear-Wave-Splitting from local earthquake data, from which we determined the areal distribution of the most anisotropic regions; (ii) local-earthquake travel-time tomography for both P- and S-wave velocities; (iii) telesismic receiver function aimed at determining the high-resolution (〈0.5km) S-velocity structure over the 0-20km depth range, and seismic anisotropy using the decomposition of the angular harmonics of the RF data-set; (iv) S-wave velocity profiling through inversion of the dispersive characteristics of Rayleigh waves from earthquakes recorded at regional distances. After presenting results from these different analyses, we eventually discuss their potential application to the characterisation and exploration of the investigated area.
    Description: Published
    Description: 227-234
    Description: 6T. Sismicità indotta e caratterizzazione sismica dei sistemi naturali
    Description: N/A or not JCR
    Description: restricted
    Keywords: Geothermal field; Local Earthquake Tomography; Shear Wave Splitting; Surface Wave Dispersion; Receiver Functions; Larderello- Travale geothermal field (Italy) ; 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    First documented deep submarine explosive eruptions at the Marsili Seamount (Tyrrhenian Sea, Italy): A case of historical volcanism in the Mediterranean Sea (2015)
    Elsevier
    Details
    Publication Date: 2021-01-14
    Description: The Marsili Seamount (MS) is an about 3200 m high volcanic complex measuring 70 × 30 km with the top at ~500 m b.s.l. MS is interpreted as the ridge of the 2 Ma old Marsili back-arc basin belonging to the Calabrian Arc–Ionian Sea subduction system(Southern Tyrrhenian Sea, Italy). Previous studies indicate that theMS activity developed between 1 and 0.1 Ma through effusions of lava flows. Here, new stratigraphic, textural, geochemical, and 14C geochronological data from a 95 cm long gravity core (COR02) recovered at 839 m bsl in theMS central sector are presented. COR02 contains mud and two tephras consisting of 98 to 100 area% of volcanic ash. The thickness of the upper tephra (TEPH01) is 15 cm, and that of the lower tephra (TEPH02) is 60 cm. The tephras have poor to moderate sorting, loose to partly welded levels, and erosive contacts, which imply a short distance source of the pyroclastics. 14C dating on fossils above and below TEPH01 gives an age of 3 ka BP. Calculations of the sedimentation rates from the mud sediments above and between the tephras suggest that a formation of TEPH02 at 5 ka BP MS ashes has a high-K calcalkaline affinity with 53 wt.% b SiO2 b 68 wt.%, and their composition overlaps that of the MS lava flows. The trace element pattern is consistent with fractional crystallization from a common, OIB-like basalt. The source area of ashes is the central sector of MS and not a subaerial volcano of the Campanian and/or Aeolian Quaternary volcanic districts. Submarine, explosive eruptions occurred atMS in historical times: this is the first evidence of explosive volcanic activity at a significant (500–800 m bsl) water depth in the Mediterranean Sea.MS is still active, the monitoring and an evaluation of the different types of hazards are highly recommended.
    Description: Published
    Description: 764-774
    Description: 2IT. Laboratori sperimentali e analitici
    Description: JCR Journal
    Description: restricted
    Keywords: Submarine active volcanism ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 5
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    Evidence of thermal-driven processes triggering the 2005–2014 unrest at Campi Flegrei caldera (2015)
    Elsevier | Elsevier Science Limited
    Details
    Publication Date: 2021-05-12
    Description: An accelerating process of ground deformation that began 10 years ago is currently affecting the Campi Flegrei caldera. The deformation pattern is here explained with the overlapping of two processes: short time pulses that are caused by injection of magmatic fluids into the hydrothermal system; and a long time process of heating of the rock. The short pulses are highlighted by comparison of the residuals of ground deformation (fitted with an accelerating polynomial function) with the fumarolic CO2/CH4 and He/CH4 ratios (which are good geochemical indicators of the arrival of magmatic gases). The two independent datasets show the same sequence of five peaks, with a delay of ∼200 days of the geochemical signal with respect to the geodetic signal. The heating of the hydrothermal system, which parallels the long-period accelerating curve, is inferred by temperature–pressure gas geoindicators. Referring to a recent interpretation that relates variations in the fumarolic inert gas species to open system magma degassing, we infer that the heating is caused by enrichment in water of the magmatic fluids and by an increment in their flux. Heating of the rock caused by magmatic fluids can be a central factor in triggering unrest at calderas.
    Description: Published
    Description: 58-67
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: JCR Journal
    Description: restricted
    Keywords: Campi Flegrei Caldera ; hydrothermal system ; ground deformation ; magmatic fluids ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 6
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    FAQ to Optimare Precision Salinometer (OPS) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-12-15
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 7
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    Cruise track and station map of POLARSTERN cruise ANT-VI/3 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-29
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 8
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    Cruise track and station map of POLARSTERN cruise ARK-I/2 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-22
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 9
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    Data and references for Mediterranean copepods' functional traits (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-23
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
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  • 10
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    Report for Cruise ES033 - Second ACES-FOCAS cruise to the southern Weddell Sea - RRS Ernest Shackleton - 22 January to 7 March 2009 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 11
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    PAPARA(ZZ)I: an open-source software interface for annotating deep-sea imagery data (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-06-22
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/zip
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  • 12
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    The North Sea — A shelf sea in the Anthropocene. (2015)
    Elsevier
    In:  EPIC3Journal of Marine Systems, Elsevier, 141, pp. 18-33
    Details
    Publication Date: 2018-02-16
    Description: Global and regional change clearly affects the structure and functioning of ecosystems in shelf seas. However, complex interactions within the shelf seas hinder the identification and unambiguous attribution of observed changes to drivers. These include variability in the climate system, in ocean dynamics, in biogeochemistry, and in shelf sea resource exploitation in the widest sense by societies. Observational time series are commonly too short, and resolution, integration time, and complexity of models are often insufficient to unravel natural variability from anthropogenic perturbation. The North Sea is a shelf sea of the North Atlantic and is impacted by virtually all global and regional developments. Natural variability (from interannual to multidecadal time scales) as response to forcing in the North Atlantic is overlain by global trends (sea level, temperature, acidification) and alternating phases of direct human impacts and attempts to remedy those. Human intervention started some 1000 years ago (diking and associated loss of wetlands), expanded to near-coastal parts in the industrial revolution of the mid-19th century (river management, waste disposal in rivers), and greatly accelerated in the mid-1950s (eutrophication, pollution, fisheries). The North Sea is now a heavily regulated shelf sea, yet societal goals (good environmental status versus increased uses), demands for benefits and policies diverge increasingly. Likely, the southern North Sea will be re-zoned as riparian countries dedicate increasing sea space for offshore wind energy generation with uncertain consequences for the system's environmental status. We review available observational and model data (predominantly from the southeastern North Sea region) to identify and describe effects of natural variability, of secular changes, and of human impacts on the North Sea ecosystem, and outline developments in the next decades in response to environmental legislation, and in response to increased use of shelf sea space.
    Repository Name: EPIC Alfred Wegener Institut
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  • 13
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    Measured calcification rates of the four coccolithophores species (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-05-24
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/vnd.openxmlformats-officedocument.wordprocessingml.document
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  • 14
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    Glacial cooling as inferred from marine temperature proxies TEXH86 and UK′37 (2015)
    Elsevier
    In:  EPIC3Earth and Planetary Science Letters, Elsevier, 409, pp. 15-22, ISSN: 0012-821X
    Details
    Publication Date: 2017-02-08
    Description: Knowledge of the magnitude of the Last Glacial Maximum (LGM) cooling is a useful constraint for estimating the climate sensitivity used in projecting future climate change. Proxy comparison, especially that between the alkenone-based UK′37 and the archaeal tetraether-based TEX86, has been increasingly applied in paleoceanographic studies as a measure to better constrain proxy-derived temperature estimates. In this study, we compile and compare published multiproxy (UK′37 and TEXH86) records of glacial cooling measured on the same sediment cores. In spite of the diversity in oceanographic and sedimentation settings spanned by the study sites, we find that the TEXH86-derived mean tropical LGM cooling is approximately twice as strong as that suggested by the UK′37 and MARGO estimates. The extent of proxy discrepancy varies with the application of various regional calibrations, but the mean TEXH86-inferred cooling remains stronger than that inferred from UK′37. To understand the discrepancy between proxies, we examine the seasonal and water column structure of LGM cooling simulated by state-of-the-art climate models. We find that the dissimilar magnitudes of proxy-derived glacial cooling cannot be fully explained by proxies reflecting temperature of different seasons or different water depths, if the recording season and depth are assumed to stay constant through time. A hypothetical shift in recording season and/or depth between the Holocene and the LGM could in theory cause the proxy discrepancy, but this hypothesis cannot be constrained due to a lack of information on lipid production and export in the water column during the LGM. Alternatively, the systematic proxy discrepancy, which persists across diverse oceanographic settings, may imply that the commonly applied proxy calibrations for reconstructing past temperatures are fundamentally biased. As evidenced by the improved consistency between UK′37 and TEXH86-based estimates of LGM cooling after we applied a global subsurface (0–200 m) temperature calibration for TEXH86, it is plausible that the TEXH86 signal originates from deeper in the water column than typically assumed for the proxy calibration.
    Repository Name: EPIC Alfred Wegener Institut
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  • 15
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    Cyst Experiment data (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-08-10
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 16
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    Supplement: Decade Wind and Wave Data for NW Iberia, Cabo Sillerio (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-07-23
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 17
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    JAPANYON Expedition, List of Cores, copied from shipboard Logs, May 1961 - Sept 1961 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-08-30
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 18
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    Blake deposits (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-08-30
    Repository Name: EPIC Alfred Wegener Institut
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  • 19
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    Supplement to: Bestimmungs- und Verbreitungsatlas der Tertiärflora Sachsens - Angiospermenblätter und Ginkgo (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-06-24
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 20
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    EGYPT-1 campaign (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-07-30
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 21
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    High resolution bathymetric compilation for Potter Cove, WAP, Antarctica: detailed data description (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-16
    Repository Name: EPIC Alfred Wegener Institut
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  • 22
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    GPR measurements of ice thickness in Austria - point data (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-09-14
    Repository Name: EPIC Alfred Wegener Institut
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  • 23
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    Permafrost longterm monitoring sites (Arctic and Antarctic) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-06-22
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/pdf
    Format: application/vnd.google-earth.kmz
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  • 24
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    Report on the deep-sea deposits based on the specimens collected during the voyage of HMS Challenger in the years 1872 to 1876 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-09-01
    Repository Name: EPIC Alfred Wegener Institut
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  • 25
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    Introduction for Drake Passage multibeam data release via PANGAEA (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-07-22
    Repository Name: EPIC Alfred Wegener Institut
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  • 26
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    106A. Manganese Noduls - Station 252 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-09-08
    Repository Name: EPIC Alfred Wegener Institut
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  • 27
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    Mapping decadal land cover changes in the woodlands of north eastern Namibia (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2016-03-05
    Repository Name: EPIC Alfred Wegener Institut
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  • 28
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    The voyage of the Vega round Asia and Europe (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-08-31
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 29
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    On the Southern Ocean CO2 uptake and the role of the biological carbon pump in the 21st century - Supplementary material (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-09-03
    Repository Name: EPIC Alfred Wegener Institut
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  • 30
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    Gaussian curvature using fundamental forms for binary voxel data (2015)
    Elsevier
    In:  EPIC3Graphical Models, Elsevier, 82, pp. 123-136, ISSN: 15240703
    Details
    Publication Date: 2017-06-14
    Description: Local curvature characterizes every point of a surface and measures its deviation from a plane, locally. One application of local curvature measures within the field of image and geometry processing is object segmentation. Here, we present and evaluate a novel algorithm based on the fundamental forms to calculate the curvature on surfaces of objects discretized with respect to a regular three-dimensional grid. Thus, our new algorithm is applicable to voxel data, which are created e.g. from computed tomography (CT). Existing algorithms for binary data used the Gauss map, rather than fundamental forms. For the calculation of the fundamental forms, derivatives of a surface in tangent directions in every point of the surface have to be computed. Since the surfaces exist on grids with restricted resolution, these derivatives have to be discretized. In the presented method, this is realized by projecting the tangent plane onto the discrete object surface. The most important parameter of the proposed algorithm is the size of the chosen window for the calculation of the gradient. The size of this window has to be selected according to object size as well as with respect to distances between objects. In our experiments, an algorithm based on the Gauss map provided inconsistent values for simple test objects, whereas our method provides consistent values. We report quantitative results on various test geometries, compare our method to two algorithms working on gray value data and demonstrate the practical applicability of our novel algorithm to CT-reconstructions of Greenlandic firn.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 31
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    Large-scale numerical modelling of CO2 injection and containment phases for an Italian near-coast reservoir using PFLOTRAN (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: A potential CO2 storage site located offshore the west coast of Italy, has been modelled using PFLOTRAN assuming an injection rate of 1.5 Mtons/year for 20 years. The model predicts a CO2 footprint characterised by a diameter of about 3.5 km and a maximum pressure build up of 38 bars. The solubility trapping has been quantified, predicting a dissolution in brine of 69% and 79% of the total amount of CO2 injected after 1000 and 2000 years respectively. The residual trapping has also been found to play an important role, with 9% and 6% of the injected CO2 being locked into the hosting matrix pores after 1000 and 2000 years respectively. Considering a worst-case scenario for leakages, where zero critical capillarity pressure has been assumed, minor CO2 leakages through the caprock have been identified, caused by the combined effects of the long-term structural trapping and the large and lasting overpressure caused by the CO2 injection in an ideally closed system. Finally, some preliminary work undertaken as part of an ongoing effort to couple a geochemical model to the multi-phase flow simulations reveals i) small changes in mineral volume fraction and porosity during and after the injection (~5% after 1000 years), and ii) a not negligible self-sealing effect due to precipitation of calcite in the lower layer of the caprock. Further investigations and longer physical time runs are needed to confirm this assumption, but also to gain more confidence on the geochemical model built so far and to estimate the mineral trapping potential for this site.
    Description: Published
    Description: 334-343
    Description: 5A. Energia e georisorse
    Description: N/A or not JCR
    Description: restricted
    Keywords: CO2 geological storage modelling ; geochemistry ; PFLOTRAN ; PFLOTRAN case study ; 03. Hydrosphere::03.02. Hydrology::03.02.03. Groundwater processes
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 32
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    Optimizing pre-eruptive temperature estimates in thermally and chemically zoned magma chambers (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: We present a method to minimize the error of temperature estimate when multiple discrete populations of glass and clinopyroxene occur in a single heterogeneous eruptive unit. As test data we have used ~1100 clinopyroxene–melt pairs from isothermal and thermal gradient experiments. These latter are characterized by the crystallization of multiple modes of clinopyroxene as frequently documented for chemically and thermally zoned magma chambers. Equilibrium clinopyroxene–melt pairs are identified through the difference between predicted and measured components in clinopyroxene. The use of these equilibrium compositions as input data for one of the most recent clinopyroxene-based thermometers demonstrates that the error of temperature estimate is minimized and approaches to the calibration error of the thermometric model. To emphasize the paramount importance of this method for predicting the crystallization temperature of heterogeneousmagmas, we have tested for equilibrium~480 and ~150 clinopyroxene–melt pairs fromthe explosive eruptions of the Sabatini Volcanic District (Latium Region, Central Italy) and the Campi Flegrei Volcanic Field (Campanian Region, Southern Italy), respectively. These eruptions were fed by zoned magma chambers, as indicated by the occurrence ofmultiple modes of clinopyroxene in the eruptive units. Results fromcalculations demonstrate that clinopyroxene–melt pairs in equilibrium at the time of eruption are effectively captured by our method and, consequently, the error of temperature estimate is significantly reduced.
    Description: Published
    Description: 97-103
    Description: 2IT. Laboratori sperimentali e analitici
    Description: JCR Journal
    Description: open
    Keywords: Equilibrium model ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 33
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    First combined flux chamber survey of mercury and CO2 emissions from soil diffuse degassing at Solfatara of Pozzuoli crater, Campi Flegrei (Italy): Mapping and quantification of gas release (2015)
    Elsevier | Elsevier Science Limited
    Details
    Publication Date: 2017-04-04
    Description: There have been limited studies to date targeting gaseous elemental mercury (GEM) flux from soil emission in enriched volcanic substrates and its relation with CO2 release and tectonic structures. In order to evaluate and understand the processes of soil–air exchanges involved at Solfatara of Pozzuoli volcano, the most active zone of Campi Flegrei caldera (Italy), an intensive field measurement survey has been achieved in September 2013 by using high-time resolution techniques. Soil–air exchange fluxes of GEM and CO2 have been measured simultaneously at 116 points, widely distributed within the crater. Quantification of gas flux has been assessed by using field accumulation chamber method in conjunction with a Lumex®-RA 915 + portable mercury vapor analyzer and a LICOR for CO2 determination, respectively. The spatial distribution of GEM and CO2 emissions correlated quite closely with the hydrothermal and geological features of the studied area. The highest GEM fluxes (from 4.04 to 5.9 × 10− 5 g m− 2 d− 1) were encountered close to the southern part of the crater interested by an intense fumarolic activity and along the SE–SW tectonic fracture (1.26 × 10− 6–6.91 × 10− 5 g GEM m− 2 d− 1). Conversely, the lowest values have been detected all along the western rim of the crater, characterized by a weak gas flux and a lush vegetation on a very sealed clay soil, which likely inhibited mercury emission (range: 1.5 × 10− 7–7.18 × 10− 6 g GEM m− 2 d− 1). Results indicate that the GEM exchange between soil and air inside the Solfatara crater is about 2–3 orders of magnitude stronger than that in the background areas (10− 8–10− 7 g m− 2 d− 1). CO2 soil diffuse degassing exhibited an analogous spatial pattern to the GEM fluxes, with emission rates ranging from about 15 to ~ 20,000 g CO2 m− 2 d− 1, from the outermost western zones to the south-eastern sector of the crater. The observed significant correlation between GEM and CO2 suggested that in volcanic system GEM volatilizes from substrate in a similar manner to the release of CO2. The quantitative estimation of the total amount of CO2 and GEM released from the Solfatara crater gave values of about 304 ± 13 and 3.7 ± 0.2 × 10− 6 t d− 1, respectively. Finally, based on our dataset and previous work, we propose that an average GEM/CO2 molar ratio of ~ 2 × 10− 8 (n = 9) is best representative of hydrothermal degassing. Taking into account the uncertainty in global hydrothermal CO2 emissions from sub-aerial environments (~ 1012 Mol yr− 1), we infer a global volcanic GEM flux from hydrothermal environments of ~ about 8.5 t yr− 1. Although this value has to be considered as a lower limit for the global emission of GEM from these sources, we suggest that on a local scale hydrothermal activity can be regarded as a significant source of GEM than previously recognized to the atmospheric pool.
    Description: Published
    Description: 26-40
    Description: 4V. Vulcani e ambiente
    Description: JCR Journal
    Description: restricted
    Keywords: Flux Chamber Survey ; Mercury ; CO2 emissions ; Solfatara ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
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  • 34
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    New insights in the geodynamics of the Lipari–Vulcano area (Aeolian Archipelago, southern Italy) from geological, geodetic and seismological data (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: Geological, geodetic and seismological data have been analyzed in order to frame the Lipari–Vulcano complex (Aeolian archipelago, southern Italy) into the geodynamic context of the southeastern Tyrrhenian Sea. It is located at the northern end of a major NNW–SSE trending right-lateral strike-slip fault system named “Aeolian–Tindari–Letojanni” which has been interpreted as a lithospheric discontinuity extending from the Aeolian Islands to the Ionian coast of Sicily and separating two different tectonic domains: a contractional one to the west and an extensional one to the north-east. Structural field data consist of structural measurements performed on well-exposed fault planes and fractures. The mesostructures are mostly represented by NW–SE striking normal faults with a dextral-oblique component of motion. Minor structures are represented by N–S oriented joints and tension gashes widespread over the whole analyzed area and particularly along fumarolized sectors. The analyzed seismological dataset (from 1994 to 2013) is based on earthquakes with magnitude ranging between 1.0 and 4.8. The hypocenter distribution depicts two major alignments corresponding to the NNW–SSE trending Aeolian–Tindari–Letojanni fault system and to the WNW–ESE oriented Sisifo–Alicudi fault system. GPS data analysis displays ∼3.0 mm/yr of active shortening between the two islands, with a maximum shortening rate of about 1.0 × 10−13 s−1, between La Fossa Caldera and south of Vulcanello. This region is bounded to the north by an area where the maximum values of shear strain rates, of about 0.7 × 10−13 s−1 are observed. This major change occurs in the area south of Vulcanello that is also characterized by a transition in the way of the vertical axis rotation. Moreover, both the islands show a clear subsidence process, as suggested by negative vertical velocities of all GPS stations which exhibit a decrease from about −15 to −7 mm/yr from north to south. New data suggest that the current kinematics of the Lipari–Vulcano complex can be framed in the tectonic context of the eastward migrating Sisifo–Alicudi fault system. This is dominated by transpressive tectonics in which contractional and minor extensional structures can coexist with strike-slip motion.
    Description: Published
    Description: 150-167
    Description: 1T. Geodinamica e interno della Terra
    Description: 2T. Tettonica attiva
    Description: JCR Journal
    Description: restricted
    Keywords: Southern Tyrrhenian sea ; Aeolian Archipelago ; Lipari–Vulcano complex ; Structural analysis ; GPS ; Seismological data ; 04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
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  • 35
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    Open-path FTIR spectroscopy of magma degassing processes during eight lava fountains on Mount Etna (2015)
    Elsevier
    Details
    Publication Date: 2020-02-24
    Description: In June–July 2001 a series of 16 discrete lava fountain paroxysms occurred at the Southeast summit crater (SEC) of Mount Etna, preceding a 28-day long violent flank eruption. Each paroxysm was preceded by lava effusion, growing seismic tremor and a crescendo of Strombolian explosive activity culminating into powerful lava fountaining up to 500m in height. During 8 of these 16 events we could measure the chemical composition of the magmatic gas phase (H2O, CO2, SO2, HCl, HF and CO), using open-path Fourier transform infrared (OP-FTIR) spectrometry at ∼1–2km distance from SEC and absorption spectra of the radiation emitted by hot lava fragments. We show that each fountaining episode was characterized by increasingly CO2-rich gas release, with CO2/SO2and CO2/HCl ratios peaking in coincidence with maxima in seismic tremor and fountain height, whilst the SO2/HCl ratio showed a weak inverse relationship with respect to eruption intensity. Moreover, peak values in both CO2/SO2ratio and seismic tremor amplitude for each paroxysm were found to increase linearly in proportion with the repose interval (2–6 days) between lava fountains. These observations, together with a model of volatile degassing at Etna, support the following driving process. Prior to and during the June–July 2001 lava fountain sequence, the shallow (∼2km) magma reservoir feeding SEC received an increasing influx of deeply derived carbon dioxide, likely promoted by the deep ascent of volatile-rich primitive basalt that produced the subsequent flank eruption. This CO2-rich gas supply led to gas accumulation and overpressure in SEC reservoir, generating a bubble foam layer whose periodical collapse powered the successive fountaining events. The anti-correlation between SO2/HCl and eruption intensity is best explained by enhanced syn-eruptive degassing of chlorine from finer particles produced during more intense magma fragmentation.
    Description: Published
    Description: 123-134
    Description: 3V. Dinamiche e scenari eruttivi
    Description: JCR Journal
    Description: restricted
    Keywords: FTIR remote sensing ; lava fountains ; gas composition ; magma degassing ; separate CO2transfer ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
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  • 36
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    Geosciences and the stewardship of our planet (2015)
    Elsevier
    Details
    Publication Date: 2020-02-24
    Description: The time for a first book on Geoethics has come. The faster, greedier pace of society and globalization demands it. The comfortable life of scholars in the ivory tower is coming to a rude awakening. People demand understandable information on geohazards, judges condemn scientist and engineers for lack of communication, indigenous people rise in anger accusing experts of misleading them, attempts to avoid transparency in developments still exist, the helplessness of technology to deal with nuclear waste becomes more evident everyday and nature exposes shortcuts in constructing critical facilities with her own awesome force.....
    Description: Published
    Description: XXI-XXII
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 4V. Vulcani e ambiente
    Description: 4A. Clima e Oceani
    Description: 5A. Energia e georisorse
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: reserved
    Keywords: Geoethics ; Philosophy ; Geosciences ; Geoscientists ; Ethics ; Earth Sciences ; Sustainability ; Research Integrity ; Professional Ethics ; Geoscience communication ; Responsibility ; Stewardship ; Planet ; Earth ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
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  • 37
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    Geoethics: ethical challenges and case studies in Earth Science (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: Key Features. Written by a global group of contributors with backgrounds ranging from philosopher to geo-practitioner, providing a balance of voices. Includes case studies, showing where experts have gone wrong and where key organizations have ignored facts, wanting assessments favorable to their agendas. Provides a much needed basis for discussion to guide scientists to consider their responsibilities and to improve communication with the public. Description. Edited by two experts in the area, Geoethics: Ethical Challenges and Case Studies in Earth Sciences addresses a range of topics surrounding the concept of ethics in geoscience, making it an important reference for any Earth scientist with a growing concern for sustainable development and social responsibility. This book will provide the reader with some obvious and some hidden information you need for understanding where experts have not served the public, what more could have been done to reach and serve the public and the ethical issues surrounding the Earth Sciences, from a global perspective. Table of contents. Section 1: Introduction Section 2: Philosophical reflections Section 3: The ethics of practice Section 4: Man made hazards Section 5: Natural hazards Section 6: Exploitation of resources Section 7: Low income and indigenous communities Section 8: Geoscience community
    Description: Published
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 5T. Sorveglianza sismica e operatività post-terremoto
    Description: 4V. Vulcani e ambiente
    Description: 5V. Sorveglianza vulcanica ed emergenze
    Description: 4A. Clima e Oceani
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: open
    Keywords: Geoethics ; Philosophy ; Natural hazards ; Man made hazards ; Georesources ; Low income countries ; Geoscience community ; Communication ; Geoeducation ; Natural risks ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
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  • 38
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    The Meaning of Geoethics (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: This chapter outlines a framework of the issues addressed by geoethics. Starting from an etymological analysis of the word “geoethics,” we identify the cultural basis on which to expand the debate on geoethics, while also proposing for consideration by the scientific community some questions that may guide the development of future research and practice in geosciences. We attempt to define some fundamental points that, in our opinion, will strengthen geoethics and help its development. The goal of geoethics is to suggest practical solutions and provide useful techniques, and also to promote cultural renewal in how humans perceive and relate to the planet, through greater attention to the protection of life and the richness of the Earth, in all its forms. As each science does, geoethics should also be able to present an image of the world, pointing out the manner in which it can be understood, investigated, designed, and experienced.
    Description: Published
    Description: 3-14
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 4V. Vulcani e ambiente
    Description: 4A. Clima e Oceani
    Description: 5A. Energia e georisorse
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: reserved
    Keywords: Etymological analysis ; Geoethics ; Geoscientists oath ; Responsibility ; Society ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
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  • 39
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    Geochemical evidences of magma dynamics at Campi Flegrei (Italy) (2015)
    Elsevier | Elsevier Science Limited
    Details
    Publication Date: 2017-04-04
    Description: Campi Flegrei caldera, within the Neapolitan area of Italy, is potentially one of the most dangerous volcanoes in the world, and during the last decade it has shown clear signs of reactivation, marked by the onset of uplift and changes in the geochemistry of gas emissions. We describe a 30-year-long data set of the CO2–He–Ar–N2 compositions of fumarolic emissions from La Solfatara crater, which is located in the center of the caldera. The data display continuous decreases in both the N2/He and N2/CO2 ratios since 1985, paralleled by an increase in He/CO2. These variations cannot be explained by either processes of boiling/condensation in the local hydrothermal system or with changes in the mixing proportions between a magmatic vapor and hydrothermal fluids. We applied the magma degassing model of Nuccio and Paonita (2001, Earth Planet. Sci. Lett. 193, 467–481) using the most recent inert-gas solubilities in order to interpret these peculiar features in accordance with petrologic constraints derived from the ranges of the melt compositions and reservoir pressures at Campi Flegrei. The model simulations for mafic melts (trachybasalt and shoshonite) show a remarkably good agreement with the measured data. Both decompressive degassing of an ascending magma and mixing between magmatic fluids exsolved at various levels along the ascent path can explain the long-term geochemical changes. Recalling that (i) a sill-like reservoir of gases at a depth of 3–4 km seems to be the main source of ground inflation and (ii) there is petrologic and geophysical evidence for a reservoir of magma at about 8 km below Campi Flegrei, we suggest that the most-intense episodes of inflation occur when the gas supply to the sill-like reservoir comes from the 8 km-deep magma, although fluids exsolved by magma bodies at shallower depths also contribute to the gas budget. Our work highlights that, in caldera systems where the presence of hydrothermal aquifers commonly masks the magmatic signature of reactive volatiles, inert gases are the preferred species to use when seeking information on the melt composition, dynamics, and structure of the plumbing systems.
    Description: Published
    Description: 1-15
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: JCR Journal
    Description: restricted
    Keywords: Geochemical Evidences ; Magmas ; Campi Flegrei caldera ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
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  • 40
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    Permutation entropy analysis of complex magnetospheric dynamics (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: The present study is focused on the emergence of dynamical complexity in the Earth's magnetospheric dynamics during magnetic storms as monitored by SYM-H index. A long time series of SYM-H index covering the period from January 2000 to December 2004 is analyzed using a quite novel technique, the permutation entropy analysis. We show that the normalized permutation entropy values of the SYM-H time series decrease during geomagnetic disturbed periods revealing a gradual increase in the temporal correlation of the fluctuations which generates a gradual increase in the complexity degree of the magnetosphere response to the solar wind magnetic field and plasma parameter changes. These large changes in the normalized permutation entropy values and complexity degree observed during the disturbed periods can be interpreted as the signature of dynamical phase transitions happening in proximity to the occurrence of geomagnetic storms and substorms confirming results previously found using different methods. The dependence of the degree of complexity on both the magnitude of the geomagnetic disturbance and the IMF ByGSM and BzGSM components is investigated and discussed.
    Description: Published
    Description: 25-31
    Description: 1A. Geomagnetismo e Paleomagnetismo
    Description: JCR Journal
    Description: restricted
    Keywords: Geomagnetic storms ; Permutation entropy ; Complexity ; 05. General::05.07. Space and Planetary sciences::05.07.01. Solar-terrestrial interaction
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  • 41
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    Carbon dioxide emission and heat release estimation for Pantelleria Island (Sicily, Italy) (2015)
    Elsevier | Elsevier Science Limited
    Details
    Publication Date: 2017-04-04
    Description: Detailed surveys of diffuse CO2 flux, soil temperature, thermal gradients, and sampling of high-T fumaroles were carried out in the Favare area and Lake Specchio di Venere on Pantelleria Island. Spatial patterns of diffuse CO2 emissions in the Favare area reflect structural discontinuities (faults, fractures or cracks in the soil) associated with the volcano-tectonic structures of the young Monastero Caldera (NNE–SSW to NE–SW trending). The estimated diffuse CO2 output from two adjacent sites in the Favare area (~ 93,000 m2) is 7.8 t d− 1 (equivalent to 2.62 kt a− 1), whereas that from the west shore of the lake (450 m2) is 0.041 t d− 1 (or 0.015 kt a− 1). The extrapolation of diffuse CO2 fluxes across the entire altered area of Favare suggests that CO2 emissions are ~ 19.3 t d− 1. The diffuse CO2 flux correlates with shallow soil temperatures, indicating a similar source for both the heat and volatiles from the underlying geothermal reservoir. Gas equilibria applied to fumarolic effluents define P–T conditions for this reservoir at 2–6 bar and 120–160 °C, in good agreement with measurements from exploratory wells in these areas (e.g., 135 °C at a depth of 290 m). Using the CO2 flux as a tracer for steam output, and consequently for heat flow, the calculated thermal energy for the shallow reservoir is 10–12 MW; this represents the minimum geothermal potential of the reservoir on Pantelleria island.
    Description: Published
    Description: 22-33
    Description: 4V. Vulcani e ambiente
    Description: JCR Journal
    Description: restricted
    Keywords: CO2 soil degassing; ; Geothermal potential; ; Geothermal aquifers; ; Pantelleria Island ; 04. Solid Earth::04.08. Volcanology::04.08.04. Thermodynamics
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  • 42
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    Modeling the dynamics of a geothermal reservoir fed by gravity driven flow through overstanding saturated rocks (2015)
    Elsevier
    Details
    Publication Date: 2020-02-24
    Description: We formulate a mathematical model for a geothermal basin with an idealized geometry characterized by: (1) radial symmetry around an extracting well (or a cluster of wells), (2) a relatively thin horizontal fractured layer lying underneath a low permeability, low porosity rock layer, saturated with water. Vaporization is allowed only at the boundary of the extracting well (or well cluster). The model is based on the assumption that the flow from the reservoir to the well is fed by a gravity driven flow through the overstanding rocks. Despite the various simplifying assumptions, the resulting mathematical problem is considerably difficult also because we consider the effect of thermal expansion and thermal variation of viscosity. Though there is no evidence that the assumed configuration of the basin approaches the structure of a known geothermal field, the results obtained match with surprising accuracy the data of a specific field in the Mt. Amiata area (data kindly provided by ENEL Green Power through Tuscany Region).
    Description: Published
    Description: 37-54
    Description: 5A. Energia e georisorse
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: 7A. Geofisica di esplorazione
    Description: 3IT. Calcolo scientifico e sistemi informatici
    Description: JCR Journal
    Description: restricted
    Keywords: Geothermal reservoirs ; Porous media ; Permeability estimation ; Fractured media ; 01. Atmosphere::01.02. Ionosphere::01.02.01. Ion chemistry and composition ; 03. Hydrosphere::03.02. Hydrology::03.02.02. Hydrological processes: interaction, transport, dynamics ; 03. Hydrosphere::03.02. Hydrology::03.02.05. Models and Forecasts ; 05. General::05.01. Computational geophysics::05.01.03. Inverse methods ; 05. General::05.01. Computational geophysics::05.01.04. Statistical analysis ; 05. General::05.05. Mathematical geophysics::05.05.99. General or miscellaneous
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  • 43
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    Abiotic methane in the hyperalkaline springs of Genova, Italy. (2015)
    Elsevier
    Details
    Publication Date: 2020-02-24
    Description: Serpentinization of ultramafic rocks is considered a major process of production of abiotic methane (CH4) and hydrogen (H2) on Earth, and it may be responsible for CH4 occurrence on other planets. While serpentinization and CH4 synthesis have been widely studied and modeled in high temperature hydrothermal conditions, such as on submarine mid-ocean ridges, the increasing number of discoveries of abiotic CH4 in ophiolites on continents shows the importance of present-day (meteoric water driven) serpentinization in low temperature (〈100 °C) gas synthesis. As a new case, we report compositional, isotopic, and flux data of gas dissolved in hyperalkaline Ca-OH waters issuing from serpentinized peridotites at Genova (Italy). CH4 is dominantly abiotic (δ13C: -9 ‰ VPDB; δ2H: -168 to - 225 ‰ VSMOW), similar to that released by ophiolites in Oman, Turkey, the Philippines, and by the submarine Lost City serpentinization system. While the absence of CO2 was expected in this kind of fluids, the absence of H2 is unusual. This could be due to hydration of olivine and pyroxene by CO2-rich fluids, eventually associated with high silica activity, which inhibits H2 formation and produces CH4 directly. Thermodynamic modeling and H2O-CH4 isotope equilibrium confirm the low temperatures (〈60°C) of the serpentinization system, and thus the abiotic methane synthesis.
    Description: Published
    Description: 248-251
    Description: 7A. Geofisica di esplorazione
    Description: N/A or not JCR
    Description: restricted
    Keywords: methane, ophiolites, serpentinization ; 03. Hydrosphere::03.04. Chemical and biological::03.04.05. Gases
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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    Seismic damage to pipelines in the framework of Na-Tech risk assessment (2015)
    Elsevier
    Details
    Publication Date: 2020-05-29
    Description: The structural integrity of pipelines undergone seismic waves is crucial for industrial installation and for the distributed transportation networks of gaseous and liquid fluids. However, it is nowadays proved that the definition of seismic vulnerability based on purely, structural-derived limit states or on return-to-service or even on the purely economic repair rate indications, is not sufficient for the holistic analysis of risks. On the other hand, detailed numerical studies based on full analyses (including fluid/soil/structure interaction) are too expensive for the aims of risk assessment and simplified methodologies are still needed.In this paper, a large database of earthquake-induced damage for steel and non-steel pipelines is presented. Each case was analyzed and collected from post-earthquake reconnaissance, seismic engineering reports and technical papers. The database may be adopted for the definition of specific vulnerability function (fragility curves), which are commonly implemented in multi-hazard analyses, and more in general for the assessment of Na-Tech risks (Natural events triggering Technological disasters). Seismic damage to pipelines in the framework of Na-Tech risk assessment. Available from: https://www.researchgate.net/publication/271673585_Seismic_damage_to_pipelines_in_the_framework_of_Na-Tech_risk_assessment [accessed Jun 12, 2015].
    Description: Published
    Description: 159-162
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: JCR Journal
    Description: restricted
    Keywords: Earthquake ; Na-Tech ; Ground failure ; Lifeline ; Fragility curve ; Pipelines ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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    Diversity and seasonality of Pseudo-nitzschia (Peragallo) at two North Sea time series monitoring sites (2015)
    Elsevier
    In:  EPIC3Helgoland Marine Research., Elsevier
    Details
    Publication Date: 2017-02-02
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 46
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    Mapped distribution of intertidal habitats in Australia between 1999 and 2014 - Metadata (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-03
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 47
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    Tutorial (Beginner level): Orthophoto and DEM Generation with Agisoft PhotoScan Pro 1.1 (with Ground Control Points) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-03
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 48
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    Das Eem-Meer in Norddeutschland und angrenzenden Gebieten. Abschlußbericht (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-09-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 49
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    Om Sjömalmerna i nagra sjöar i Pusula, Pyhâjarvi, (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-09-09
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 50
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    Documentation of the South African Antarctic Pack Ice Seals Census (APIS) Programme 1998 during PS48 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-29
    Repository Name: EPIC Alfred Wegener Institut
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  • 51
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    A compilation of global bio-optical in situ data for ocean-colour satellite applications, supplementary material (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-07-06
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 52
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    From forest to farmland: pollen inferred land cover change across Europe using the pseudobiomization approach, Figures (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-13
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 53
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    THETA-1 (TH1) Expedition, June-September 1956, Lamont-Doherty Earth Observatory, (Unpublished) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 54
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    Derivation of an observation-based map of North African dust emission (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-23
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 55
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    Raw values of nutrients measured on water bottle samples during POLARSTERN cruise ARK-XXVII/3 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-26
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 56
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    Original table of: Abundance of benthic macrofauna sampled near Sylt (German Bight) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-02
    Repository Name: EPIC Alfred Wegener Institut
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  • 57
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    Taxonomic identifiation, anti-trypanosomal activity, and metabolomics analyses of Mediterranean marine sponge associated actinomycetes (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-02
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 58
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    Station list HE449 in Excel format (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-03
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 59
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    Distributions, trends and inter-annual variability of nutrients along a repeat section through the Weddell Sea (1996–2011) (2015)
    Elsevier
    In:  EPIC3Marine Chemistry, Elsevier, 177, pp. 545-553, ISSN: 03044203
    Details
    Publication Date: 2015-12-01
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
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  • 60
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    hyDRaCAT Spectral Reflectance Library: Hyperspectral Field Spectroscopy and Field Spectro-Goniometry of Siberian and Alaskan Tundra, Documentation of data files (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-15
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 61
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    Supplement to: "Effect of Terrain Characteristics on Soil Organic Carbon and Total Nitrogen Stocks in Soils of Herschel Island, Western Canadian Arctic" (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-03-14
    Repository Name: EPIC Alfred Wegener Institut
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  • 62
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    Size-partitioned Phytoplankton Carbon Concentrations Retrieved from Ocean Color Data, description of formats (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-03-18
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 63
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    Cruise track and station map of POLARSTERN cruise ARK-I/3 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-22
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 64
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    Occurrence and range data of bivalve through the Phanerozoic (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 65
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    Cruise track of POLARSTERN cruise ANT-VI/1 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-22
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 66
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    Cruise track of POLARSTERN cruise ANT-II/5 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-22
    Repository Name: EPIC Alfred Wegener Institut
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  • 67
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    Fig 1. main study region (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-11
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 68
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    Documentation of SEAFOS seal census survey at Filchner Outflow System with Polarstern Helicopter during campaign FIL2014 (PS82) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-23
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 69
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    images of manganese nodules (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-15
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 70
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    Supplementary dara - Rates of nitrogen cycling and chemo-autotrophy in the cold-water coral Lophelia pertusa (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-24
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 71
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    Satellite-derived changes in the permafrost landscape of central Yakutia, 2000-2011: wetting, drying, and fires (documentation files) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-20
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 72
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    On the main aspects of formation of ferromanganese ores in recent basins (lakes) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-11-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 73
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    Station list HE450 in Excel format (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-03
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 74
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    LECO raw data of 7 GeoB sediment cores (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-02
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 75
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    The new database of the Global Terrestrial Network for Permafrost (GTN-P), Supplementary material (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-09
    Repository Name: EPIC Alfred Wegener Institut
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  • 76
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    Updated bathymetric chart of the East Aral Sea, overview map (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-12-11
    Repository Name: EPIC Alfred Wegener Institut
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  • 77
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    Mean spring conditions at Helgoland Roads, North Sea: Graphical modeling of the influence of hydro-climatic forcing and Elbe River discharge (2015)
    Elsevier
    In:  EPIC3JOURNAL OF SEA RESEARCH, Elsevier, 101, pp. 1-11
    Details
    Publication Date: 2018-02-16
    Description: We analyze inter-annual changes of marine observations at Helgoland Roads (nitrate, phosphate, salinity, Secchi depth) in relation to hydro-climatic conditions and Elbe River discharge as potential drivers. Focusing on mean spring conditions we explore graphical covariance selection modeling as a means to both identify and represent the structure of parameter interactions. While river discharge is able to modify spatial distributions and related gradients in the station's vicinity, atmospherically forced regional transport patterns govern the time dependent local conditions the station is actually exposed to. A model consistent with the data confirms the interplay of the two forcing factors for observations at station Helgoland Roads. Introducing water temperature as a third predictor of inter-annual variability does not much improve the model. Comparing a Helgoland Roads dependence graph with corresponding graphs for other stations or related model simulations, for instance, could help identify differences in underlying mechanisms without referring to specific realizations of external forcing. With regard to prediction, supplementary numerical experiments reveal that imposing constraints on parameter interactions can reduce the chance of fitting regression models to noise.
    Repository Name: EPIC Alfred Wegener Institut
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  • 78
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    Atmospheric remote sensing constraints on direct sea-air methane flux from the 22/4b North Sea massive blowout bubble plume (2015)
    Elsevier
    In:  EPIC3Marine andPetroleumGeology, Elsevier, 68, pp. 824-835
    Details
    Publication Date: 2017-10-17
    Description: A new airborne remote sensing approach to estimate an upper limit of the direct sea-air methane emission flux was applied over the 22/4b blowout site located at N57.92°, E1.63° in the North Sea. Passive remote sensing data using sunglint/sunglitter geometry were collected during instrumental tests with the Methane Airborne MAPper \u2013 MAMAP \u2013 instrument installed aboard the Alfred Wegener Institute (AWI) Polar-5 aircraft on 3. June 2011. MAMAP is a passive short wave infrared (SWIR) remote sensing spectrometer for airborne measurements and retrieval of the atmospheric column-averaged dry air mole fractions of methane (XCH4) and carbon dioxide (XCO2). In addition to MAMAP a fast CH4 in-situ analyzer (Los-Gatos Research Inc. RMT-200), two 5-hole turbulence probes and the Polar-5 basic sensor suite comprising different temperature, pressure, humidity and camera sensors were installed aboard the aircraft. The collected MAMAP remote sensing data acquired in the vicinity of the 22/4b blowout site showed no detectable increase in the derived XCH4 (with respect to the atmospheric background). Based on the absence of a detectable XCH4 column increase, an approximate top-down upper-limit for the direct atmospheric 22/4b blowout CH4 emissions from the main bubble plume of less than 10 ktCH4/yr has been derived. The constraint has been determined by comparing XCH4 information derived by the remote sensing measurements with results obtained from a Gaussian plume forward model simulation taking into account the actual flight track, the instrument sensitivity and measurement geometry, as well as the prevailing atmospheric conditions.
    Repository Name: EPIC Alfred Wegener Institut
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  • 79
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    A first insight into the spleen transcriptome of the notothenioid fish Lepidonotothen nudifrons: Resource description and functional overview. (2015)
    Elsevier
    In:  EPIC3Mar Genomics, Elsevier, 24(3), pp. 237-239
    Details
    Publication Date: 2016-04-15
    Description: In this study, we describe a de novo sequencing and assembly of the spleen transcriptome of Lepidonotothen nudifrons, a notothenioid fish widely distributed around the Antarctic Peninsula and the Scotia Arc. Sequences were generated on an Illumina MiSeq system and assembled to a total of 112,477 transcripts. Putative functional annotation was possible for more than 34% of the transcripts. This data will be relevant for future studies targeting the erythrocyte turnover, oxygen transport mechanism and immune system, which are key functional traits to investigate cold adaptation and thermal sensitivity of Antarctic notothenioids.
    Repository Name: EPIC Alfred Wegener Institut
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  • 80
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    BSRN Station description of stations Fukuoka, Ishigakijima, Minamitorishima, Sapporo and Tateno, Japan (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-05-19
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 81
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    Supplement to Ghasemitabar and Movagharnejad 2015 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-01-06
    Repository Name: EPIC Alfred Wegener Institut
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  • 82
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    Appendix for Yamaura et al. (Tokachi district, eastern Hokkaido, northern Japan, 2011) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-05-20
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 83
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    Supplementary data (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-01-21
    Repository Name: EPIC Alfred Wegener Institut
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  • 84
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    Station map of James Clark Ross cruise JR37 (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-10-23
    Repository Name: EPIC Alfred Wegener Institut
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  • 85
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    supplementary file-microthermometric data (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-02-20
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 86
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    Mosaic of aerial images taken of the survey area during a low-altitude helicopter flight (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-04-10
    Repository Name: EPIC Alfred Wegener Institut
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  • 87
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    Supplementary information (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-04-22
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 88
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    Simultaneous determination of δ11B and B/Ca ratio in marine biogenic carbonates at nanogram level (2015)
    Elsevier
    In:  EPIC3Chemical Geology, Elsevier, 392, pp. 32-42, ISSN: 0009-2541
    Details
    Publication Date: 2014-12-03
    Description: In this study we introduce a new in situ technique which allows the determination of the boron isotopic composition and B/Ca ratios simultaneously at the nanogram level using a combination of optical emission spectroscopy and multiple ion counting MC ICP-MS with laser ablation. This technique offers a new application in the paleo-field of oceanography and climatology since small samples like e.g. single foraminiferal shells can be analyzed. The simultaneous determination of the boron isotopic composition and B/Ca ratios provides two independent proxies which allow the reconstruction of the full carbonate system. To test the new technique we performed measurements on the cultured, benthic foraminifer Amphistegina lessonii. Our results yielded an average boron isotopic composition δ11B = 18.0 ± 0.83‰ (SD) with an average internal precision of 0.52‰ (RSE). The boron concentration was 53 ± 7 μg/g (SD). These results agree with the range reported in the literature. The reconstructed mean pH value is in excellent agreement with the measured pH of the seawater in which the foraminifers grew. The analysis of a foraminifer consumed approximately 1200 ng calcium carbonate containing ca. 0.06 ng boron. Compared to bulk analytical methods, this new technique requires less material and reduces the time for sample preparation.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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    What did we learn about ocean particle dynamics in the GEOSECS-JGOFS era? (2015)
    Elsevier
    In:  EPIC3Progress in Oceanography, Elsevier, ISSN: 0079-6611
    Details
    Publication Date: 2015-01-30
    Description: Particles determine the residence time of many dissolved elements in seawater. Although a substantial number of field studies were conducted in the framework of major oceanographic programs as GEOSECS and JGOFS, knowledge about particle dynamics is still scarce. Moreover, the particulate trace metal behavior remains largely unknown. The GEOSECS sampling strategy during the 1970s focused on large sections across oceanic basins, where particles were collected by membrane filtration after Niskin bottle sampling, biasing the sampling toward the small particle pool. Late in this period, the first in situ pumps allowing large volume sampling were also developed. During the 1990s, JGOFS focused on the quantifi- cation of the ‘‘exported carbon flux’’ and its seasonal variability in representative biogeochemical prov- inces of the ocean, mostly using sediment trap deployments. Although scarce and discrete in time and space, these pioneering studies allowed an understanding of the basic fate of marine particles. This understanding improved considerably, especially when the analysis of oceanic tracers such as natural radionuclides allowed the first quantification of processes such as dissolved-particle exchange and par- ticle settling velocities. Because the GEOTRACES program emphasizes the importance of collecting, char- acterizing and analyzing marine particles, this paper reflects our present understanding of the sources, fate and sinks of oceanic particles at the early stages of the program.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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    Data for "Distribution models for mountain plant species: The value of elevation" (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-02-06
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 91
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    Supplementary material (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-02-08
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 92
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    TanDEM-X ice thickness dataset for Wilkins Ice Shelf, Antarctic Peninsula (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-02-10
    Description: The dataset shows the ice thickness over Wilkins Ice Shelf, Antarctic Peninsula derived from TanDEM-X Interferometry. The data has been acquired between June and August 2012. The TanDEM-X heights have been linked to CryoSAT-2 heights (V. Helm) from the respective time stamp. Elevations have been transformed from WGS84 ellipsoidal heights to the EGM2008 geoid. The ice shelf thickness was estimated assuming hydrostatic equilibrium and a mean ice density of 915 kg/m³.
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 93
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    Redox Cycling of Fe(II) and Fe(III) in magnetite by Fe-metabolizing bacteria (supplement) (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-03-06
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 94
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    FixO3 Station M, figures (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-03-19
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 95
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    Comparative analysis of time series of marine litter surveyed on beaches and the seafloor in the southeastern North Sea (2015)
    Elsevier
    In:  EPIC3Marine Environmental Research, Elsevier, 106(May 20), pp. 61-67
    Details
    Publication Date: 2015-10-12
    Description: The comparative analysis of marine litter in different marine compartments has rarely been attempted. In this study, long-term time series of marine litter abundance on the seafloor and on the coast, both from the southeastern North Sea, were analyzed for temporal trends and correlations. On four beach sections of 100 m length, mean abundances of total beach litter collected four times a year from 2002 to 2008 varied between 105 and 435 items. Mean densities of total inorganic litter on the seafloor amounted to 10.6 ± 9.7 kg km−2 in the offshore region (2001–2010) and 13.7 ± 12.6 kg km−2 in the Wadden Sea (1998–2007), respectively. In the offshore region, there was no significant long-term trend, while in the Wadden Sea, densities of marine litter declined significantly. Correlations between time series were weak, indicating different sources and transport processes responsible for compositions of beach litter and litter on the seafloor. Decreases in inputs from fisheries and substantial export due to resuspension are discussed as reasons for the decrease in litter on the seafloor in the Wadden Sea.
    Repository Name: EPIC Alfred Wegener Institut
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    Figure: Saturation state of calcite and aragonite at 150 m depth at Station M (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-03-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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    Dynamics of dissolved organic matter in fjord ecosystems: Contributions of terrestrial dissolved organic matter in the deep layer (2015)
    Elsevier
    In:  EPIC3Estuarine, Coastal and Shelf Science, Elsevier, 159, pp. 37-49
    Details
    Publication Date: 2015-04-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 98
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    Norderney - Sediment Classification (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-05-25
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/zip
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  • 99
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    Biochar and compost effects on mobility of Cu and other soil parameters and plant growth (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-06-10
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
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    360° perspective of the measurement site for local objects shading the radiation sensors (2015)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2015-07-07
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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