GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Publikationsart
Schlagwörter
Verlag/Herausgeber
Sprache
Erscheinungszeitraum
  • 1
    Online-Ressource
    Online-Ressource
    Submarine Mass Movements and Their Consequences : 3rd International Symposium. (2007)
    Dordrecht :Springer Netherlands,
    Details
    Schlagwort(e): Geography. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (434 pages)
    Ausgabe: 1st ed.
    ISBN: 9781402065125
    Serie: Advances in Natural and Technological Hazards Research Series ; v.27
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=338601
    DDC: 551.307
    Sprache: Englisch
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    GEOMAR EBL
  • 2
    facet.materialart.
    Unbekannt
    Societal need for improved understanding of climate change, anthropogenic impacts, and geo-hazard warning drive development of ocean observatories in European Seas (2011)
    Elsevier
    In:  Progress in Oceanography, 91 (1). pp. 1-33.
    Details
    Publikationsdatum: 2019-09-23
    Beschreibung: Society’s needs for a network of in situ ocean observing systems cross many areas of earth and marine science. Here we review the science themes that benefit from data supplied from ocean observatories. Understanding from existing studies is fragmented to the extent that it lacks the coherent long-term monitoring needed to address questions at the scales essential to understand climate change and improve geo-hazard early warning. Data sets from the deep sea are particularly rare with long-term data available from only a few locations worldwide. These science areas have impacts on societal health and well-being and our awareness of ocean function in a shifting climate. Substantial efforts are underway to realise a network of open-ocean observatories around European Seas that will operate over multiple decades. Some systems are already collecting high-resolution data from surface, water column, seafloor, and sub-seafloor sensors linked to shore by satellite or cable connection in real or near-real time, along with samples and other data collected in a delayed mode. We expect that such observatories will contribute to answering major ocean science questions including: How can monitoring of factors such as seismic activity, pore fluid chemistry and pressure, and gas hydrate stability improve seismic, slope failure, and tsunami warning? What aspects of physical oceanography, biogeochemical cycling, and ecosystems will be most sensitive to climatic and anthropogenic change? What are natural versus anthropogenic changes? Most fundamentally, how are marine processes that occur at differing scales related? The development of ocean observatories provides a substantial opportunity for ocean science to evolve in Europe. Here we also describe some basic attributes of network design. Observatory networks provide the means to coordinate and integrate the collection of standardised data capable of bridging measurement scales across a dispersed area in European Seas adding needed certainty to estimates of future oceanic conditions. Observatory data can be analysed along with other data such as those from satellites, drifting floats, autonomous underwater vehicles, model analysis, and the known distribution and abundances of marine fauna in order to address some of the questions posed above. Standardised methods for information management are also becoming established to ensure better accessibility and traceability of these data sets and ultimately to increase their use for societal benefit. The connection of ocean observatory effort into larger frameworks including the Global Earth Observation System of Systems (GEOSS) and the Global Monitoring of Environment and Security (GMES) is integral to its success. It is in a greater integrated framework that the full potential of the component systems will be realised. Highlights ► Societies increasingly depend on timely information on ecosystems and natural hazards. ► Data is needed to improve climate-related uncertainty and geo-hazard early warning. ► Observatory networks coordinate and integrate the collection of standardised data. ► Ocean observatories provide opportunity for ocean science to evolve.
    Materialart: Article , PeerReviewed
    Format: text
    Format: text
    DOI: 10.1016/j.pocean.2011.05.001
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    OceanRep: Artikel in einer Fachzeitschrift - begutachtet
  • 3
    facet.materialart.
    Unbekannt
    Prokaryotic community structure and diversity in the sediment of Kazan mud volcano (2011)
    PANGAEA
    In:  Supplement to: Pachiadaki, Maria G; Lykousis, Vasilios; Stefanou, Euripides G; Kormas, Konstantinos A (2010): Prokaryotic community structure and diversity in the sediments of an active submarine mud volcano (Kazan mud volcano, East Mediterranean Sea). FEMS Microbiology Ecology, 72(3), 429-444, https://doi.org/10.1111/j.1574-6941.2010.00857.x
    Details
    Publikationsdatum: 2023-05-12
    Beschreibung: We investigated 16S rRNA gene diversity at a high sediment depth resolution (every 5 cm, top 30 cm) in an active site of the Kazan mud volcano, East Mediterranean Sea. A total of 242 archaeal and 374 bacterial clones were analysed, which were attributed to 38 and 205 unique phylotypes, respectively (〉=98% similarity). Most of the archaeal phylotypes were related to ANME-1, -2 and -3 members originating from habitats where anaerobic oxidation of methane (AOM) occurs, although they occurred in sediment layers with no apparent AOM (below the sulphate depletion depth). Proteobacteria were the most abundant and diverse bacterial group, with the Gammaproteobacteria dominating in most sediment layers and these were related to phylotypes involved in methane cycling. The Deltaproteobacteria included several of the sulphate-reducers related to AOM. The rest of the bacterial phylotypes belonged to 15 known phyla and three unaffiliated groups, with representatives from similar habitats. Diversity index H was in the range 0.56-1.73 and 1.47-3.82 for Archaea and Bacteria, respectively, revealing different depth patterns for the two groups. At 15 and 20 cm below the sea floor, the prokaryotic communities were highly similar, hosting AOM-specific Archaea and Bacteria. Our study revealed different dominant phyla in proximate sediment layers.
    Schlagwort(e): CDRILL; Core drilling; Eastern Mediterranean Sea; HERMIONE; Hotspot Ecosystem Research and Mans Impact On European Seas; Kazan-MV
    Materialart: Dataset
    Format: application/zip, 2 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unbekannt
    (Figure 6) Phylotype numbers, individual numbers and diversity in the sediments of Kazan mud volcano
    PANGAEA
    Details
    Publikationsdatum: 2023-05-12
    Schlagwort(e): CDRILL; Core drilling; DEPTH, sediment/rock; Eastern Mediterranean Sea; Equitability; HERMIONE; Hotspot Ecosystem Research and Mans Impact On European Seas; Kazan-MV; Number of individuals; Phylotype number; Shannon Diversity Index
    Materialart: Dataset
    Format: text/tab-separated-values, 28 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unbekannt
    Surface sediment grain size, carbonate content and clay mineralogy of Thermaikos shelf (Table 1)
    PANGAEA
    Details
    Publikationsdatum: 2023-05-12
    Beschreibung: The area under investigation is located within 22°45' to 23°45'E, and from 39°15' to 40°15'N. Sedimentological, bathymetric and shallow geophysical data were collected from here during the 7/78 cruise of R.R.S. "Shackleton". Twenty-seven sea-bed (surface) samples were collected, using a Day grab, from different environments; these were analysed for grain-size distribution, carbonate content, and clay mineralogy. On the basis of the bathymetric and shallow geophysical data, the area has been classified into five major physiographic environments, according to their bathymetry and topography: (1) shelf (Thermaicon Plateau); (2) slope; (3) marginal plateau; (4) the "canyon system" and valleys; and (5) (Sporades) basin. Based on the sedimentological analyses, the surface sediments have been classified into four major Provinces, as follows: (1) Province 1 - shelf muds; (2) Province 2 - muddy sands; (3) Province 3 - outer margin muds; and (4) Province 4 - outer shelf/shelf break. It is concluded that modern sedimentation in the N.W. Aegean Sea is dominated by the (terrigenous) river inputs and by the circulation of both high and low salinity masses.
    Schlagwort(e): Aegean Sea; Calcium carbonate; Calculated after FOLK; DEPTH, sediment/rock; Event label; Grab; GRAB; Grain size, mean; Grain size, pipette analysis; Grain size, sieving; Gravimetric analysis; Illite; Kaolinite+Chlorite; Latitude of event; Longitude of event; NA/78/1; NA/78/10; NA/78/19; NA/78/2; NA/78/28; NA/78/3; NA/78/32; NA/78/33; NA/78/34; NA/78/35; NA/78/36; NA/78/37; NA/78/38; NA/78/39; NA/78/4; NA/78/40; NA/78/41; NA/78/42; NA/78/44; NA/78/45; NA/78/46; NA/78/47; NA/78/5; NA/78/6; NA/78/7; NA/78/8; NA/78/9; Sand; Shackleton; Shackleton78/7; Silt; Size fraction 〈 0.002 mm, clay; Smectite; Thermaikos Gulf; X-ray diffraction, clay fraction
    Materialart: Dataset
    Format: text/tab-separated-values, 249 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unbekannt
    (Table 2) Age determination of Aegean Sea sediments
    PANGAEA
    In:  Supplement to: Casford, James SL; Rohling, Eelco J; Abu-Zied, Ramadan; Cooke, Steve; Fontanier, Christophe; Leng, M; Lykousis, Vasilios (2002): Circulation changes and nutrient concentrations in the late Quaternary Aegean Sea: A nonsteady state concept for sapropel formation. Paleoceanography, 17(2), 14-1-14-11, https://doi.org/10.1029/2000PA000601
    Details
    Publikationsdatum: 2023-05-12
    Beschreibung: The modern Aegean Sea is an important source of deep water for the eastern Mediterranean. Its contribution to deep water ventilation is known to fluctuate in response to climatic variation on a decadal timescale. This study uses marine micropalaeontological and stable isotope data to investigate longer-term variability during the late glacial and Holocene, in particular that associated with the deposition of the early Holocene dysoxic/anoxic sapropel S1. Concentrating on the onset of sapropel-forming conditions, we identify the start of 'seasonal' stratification and highlight a lag in d18O response of the planktonic foraminifer N. pachyderma to termination T1b as identified in the d18O record of G. ruber. By use of a simple model we determine that this offset cannot be a function of bioturbation effects. The lag is of the order of 1 kyr and suggests that isolation of intermediate/deep water preceded the start of sapropel formation by up to 1.5 kyr. Using this discovery, we propose an explanation for the major unresolved problem in sapropel studies, namely, the source of nutrient supply required for export productivity to reach levels needed for sustained sapropel deposition. We suggest that nutrients had been accumulating in a stagnant basin for 1-1.5 kyr and that these accumulated resources were utilized during the deposition of S1. In addition, we provide a first quantitative estimate of the diffusive (1/e) mixing timescale for the eastern Mediterranean in its "stratified" sapropel mode, which is of the order of 450 years.
    Schlagwort(e): Aegean_LC-21; Aegean_SL-31; Aegean_SLA-9; Aegean Sea/BASIN; Age; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated standard error; Calendar age; Calendar age, standard error; DEPTH, sediment/rock; Elevation of event; Event label; GC; Gravity corer; Laboratory code/label; Latitude of event; Longitude of event; PC; Piston corer
    Materialart: Dataset
    Format: text/tab-separated-values, 108 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unbekannt
    (Table 1) Prokaryotic community structure and diversity in the sediments of Kazan mud volcano (2010)
    PANGAEA
    Details
    Publikationsdatum: 2023-09-23
    Schlagwort(e): Acidobacteria; Actinobacteria; Alphaproteobacteria; Anaerobic methanotrophic archaea-1; Anaerobic methanotrophic archaea-2a,b; Anaerobic methanotrophic archaea-2c; Anaerobic methanotrophic archaea-3; Archaea, GEG; Archaea, GoM Arc I; Archaea, MBG-B; Archaea, MBG-D; Bacteria, JS1; Bacteria, OP11; Bacteria, OP8; Bacteria, TG1; Bacteria, unaffiliated; Bacteria, WS2; Bacteria, WS3; Bacteroidetes; Betaproteobacteria; CDRILL; Chlorobi; Chloroflexi; Core drilling; Deferribacteres; Delta-Proteobacteria; DEPTH, sediment/rock; Eastern Mediterranean Sea; Epsilonproteobacteria; Firmicutes; Fusobacteria; Gammaproteobacteria; HERMIONE; Hotspot Ecosystem Research and Mans Impact On European Seas; Kazan-MV; Methanomicrobiales; Methanosaeta related Methanosarcinales; Methanosarcinales, unaffiliated; Number of clones; Planctomycetes; Spirochaetes
    Materialart: Dataset
    Format: text/tab-separated-values, 238 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unbekannt
    Climate variability in the Aegean Sea (marine record M2, Athos basin) during the past 1500 years (2016)
    PANGAEA
    In:  Supplement to: Gogou, Alexandra; Triantaphyllou, Maria; Xoplaki, Elena; Izdebski, Adam; Parinos, Constantine; Dimiza, Margarita D; Bouloubassi, Ioanna; Luterbacher, Jürg; Kouli, Katerina; Martrat, Belén; Toreti, Andrea; Fleitmann, Dominik; Rousakis, Gregory; Kaberi, Helen; Athanasiou, Maria; Lykousis, Vasilios (2016): Climate variability and socio-environmental changes in the northern Aegean (NE Mediterranean) during the last 1500 years. Quaternary Science Reviews, 136, 209-228, https://doi.org/10.1016/j.quascirev.2016.01.009
    Details
    Publikationsdatum: 2024-03-25
    Beschreibung: We provide new evidence on sea surface temperature (SST) variations and paleoceanographic/paleoenvironmental changes over the past 1500 years for the north Aegean Sea (NE Mediterranean). The reconstructions are based on multiproxy analyses, obtained from the high resolution (decadal to multi-decadal) marine record M2 retrieved from the Athos basin. Reconstructed SSTs show an increase from ca. 850 to 950 AD and from ca. 1100 to 1300 AD. A cooling phase of almost 1.5 °C is observed from ca. 1600 AD to 1700 AD. This seems to have been the starting point of a continuous SST warming trend until the end of the reconstructed period, interrupted by two prominent cooling events at 1832 ± 15 AD and 1995 ± 1 AD. Application of an adaptive Kernel smoothing suggests that the current warming in the reconstructed SSTs of the north Aegean might be unprecedented in the context of the past 1500 years. Internal variability in atmospheric/oceanic circulations systems as well as external forcing as solar radiation and volcanic activity could have affected temperature variations in the north Aegean Sea over the past 1500 years. The marked temperature drop of approximately ~2 °C at 1832 ± 15 yr AD could be related to the 1809 AD 'unknown' and the 1815 AD Tambora volcanic eruptions. Paleoenvironmental proxy-indices of the M2 record show enhanced riverine/continental inputs in the northern Aegean after ca. 1450 AD. The paleoclimatic evidence derived from the M2 record is combined with a socio-environmental study of the history of the north Aegean region. We show that the cultivation of temperature-sensitive crops, i.e. walnut, vine and olive, co-occurred with stable and warmer temperatures, while its end coincided with a significant episode of cooler temperatures. Periods of agricultural growth in Macedonia coincide with periods of warmer and more stable SSTs, but further exploration is required in order to identify the causal links behind the observed phenomena. The Black Death likely caused major changes in agricultural activity in the north Aegean region, as reflected in the pollen data from land sites of Macedonia and the M2 proxy-reconstructions. Finally, we conclude that the early modern peaks in mountain vegetation in the Rhodope and Macedonia highlands, visible also in the M2 record, were very likely climate-driven.
    Schlagwort(e): Eastern Mediterranean Sea; MEDECOS_II_M2; MUC; MultiCorer
    Materialart: Dataset
    Format: application/zip, 5 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unbekannt
    (Fig. 6) Abundance curves of the most indicative pollen groups in sediment core MEDECOS_II_M2 (2016)
    PANGAEA
    Details
    Publikationsdatum: 2024-03-25
    Schlagwort(e): -; Age; AGE; Eastern Mediterranean Sea; Index; MEDECOS_II_M2; MUC; MultiCorer; Pinus; Pollen; Quercus
    Materialart: Dataset
    Format: text/tab-separated-values, 481 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 10
    facet.materialart.
    Unbekannt
    (Table 2) Age determination of sediment core MEDECOS_II_M2 (2016)
    PANGAEA
    Details
    Publikationsdatum: 2024-03-25
    Schlagwort(e): Age; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated material; Age, dated standard deviation; Age, error; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Eastern Mediterranean Sea; MEDECOS_II_M2; MUC; MultiCorer
    Materialart: Dataset
    Format: text/tab-separated-values, 44 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...