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  • 1
    Book
    Book
    Klimawechsel vor dem Einfluß des Menschen : Leopoldina-Symposium ; mit 8 Tabellen (2001)
    Halle (Saale) : Deutsche Akademie der Naturforscher Leopoldina | Heidelberg : Barth in MVH Medizinverl.
    Details Availability
    Keywords: Quartär ; Klimaänderung ; Kongreßschrift ; Konferenzschrift ; Konferenzschrift 2001 ; Quartär ; Klimaänderung
    Type of Medium: Book
    Pages: 230 S , Ill., graph. Darst., Kt , 24 cm
    ISBN: 3830451105
    Series Statement: Nova acta Leopoldina N.F., 331 = Bd. 88
    URL: http://www.gbv.de/dms/tib-ub-hannover/335451594.pdf
    RVK:
    RB 10081
    RVK:
    RB 10147
    RVK:
    RB 10438
    Language: German , English
    Note: Beitr. teilw. dt., teilw. engl , Literaturangaben
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  • 2
    Book
    Book
    d18O [Delta18O] stratigraphy, chronology, and sea surface temperatures of Atlantic sediment records (GLAMAP - 2000 Kiel) : = d18O [Delta18O-Stratigraphie], Chronologie und Meeresoberflächentemperaturen von Sedimentkernen aus dem Atlantik (GLAMAP - 2000 Kiel) (2001)
    Kiel : Inst. für Geowissenschaften der Christian-Albrechts-Univ.
    Details Availability
    Keywords: Forschungsbericht ; Atlantischer Ozean ; Meeressediment ; Fossile Foraminiferen ; Quartär ; Chronostratigraphie ; Paläoklimatologie ; Nordpolarmeer ; Meeressediment ; Fossile Foraminiferen ; Quartär ; Chronostratigraphie ; Paläoklimatologie ; Atlantischer Ozean ; Meeressediment ; Fossile Foraminiferen ; Quartär ; Chronostratigraphie ; Paläoklimatologie ; Nordpolarmeer ; Meeressediment ; Fossile Foraminiferen ; Quartär ; Chronostratigraphie ; Paläoklimatologie ; Atlantischer Ozean ; Sediment
    Type of Medium: Book
    Pages: 13, [241] S. , zahlr. graph. Darst., Kt.
    Series Statement: Berichte / Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel 13
    Language: English
    Note: Literaturangaben ; Zsfassung in dt. Sprache
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  • 3
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    Das Zeitskalenproblem (2001)
    GeoForschungsZentrum Potsdam
    In:  In: Klimaweißbuch : Klimainformationen aus geowissenschaftlicher Forschung (Fallstudien) ; Stand und notwendige Erfordernisse der Paläoklimaforschung. , ed. by Negendank, J. F. W. Terra Nostra . GeoForschungsZentrum Potsdam, Potsdam, pp. 58-59.
    Details
    Publication Date: 2014-07-23
    Type: Book chapter , NonPeerReviewed
    Format: text
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    OceanRep: Book chapter
  • 4
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    Paired d18O signals of Neogloboquadrina pachyderma (s) and Turborotalita quinqueloba show thermal stratification in Nordic Seas (2003)
    Elsevier
    In:  Marine Micropaleontology, 48 . pp. 107-125.
    Details
    Publication Date: 2017-06-22
    Description: The vertical density gradients in the Nordic Seas are crucial for the preconditioning of the surface water to thermohaline sinking in winter. These gradients can be reconstructed from paired oxygen isotope data in tests of different species of planktonic foraminifera, the isotopic signatures of which represent different calcification depths in the water column. Comparison of δ18O values from foraminiferal tests in plankton hauls, sediment traps, and nearby core top samples with the calculated δ18Ocalcite profile of the water column revealed species-specific δ18O vital effects and the role of bioturbational admixture of subfossil specimens into the surface sediment. On the basis of core top samples obtained along a west–east transect across various hydrographic regions of the Nordic Seas, δ18O values of Turborotalita quinqueloba document apparent calcification depths within the pycnocline at 25–75 m water depth. The isotopic signatures of Neogloboquadrina pachyderma (s) reflect water masses near and well below the pycnocline between 70 and 250 m off Norway, where the Atlantic inflow leads to thermal stratification. Here, temperatures in the calcification depth of N. pachyderma (s) differ from sea surface temperature by approximately −2.5°C. In contrast, N. pachyderma (s) calcifies very close to the sea surface (20–50 m) in the Arctic domain of the western Nordic Seas. However, further west N. pachyderma (s) prefers somewhat deeper, more saline water at 70–130 m well below the halocline that confines the low saline East Greenland Current. This implies that the δ18O values of N. pachyderma (s) do not fully reflect the freshwater proportion in surface water and that any reconstruction of past meltwater plumes based on δ18O is too conservative, because it overestimates sea surface salinity. Minimum δ18O differences (〈0.2‰) between N. pachyderma (s) and T. quinqueloba may serve as proxy for sea regions with dominant haline and absent thermal stratification, whereas thermal stratification leads to δ18O differences of 〉0.4 to 〉1.5‰.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/S0377-8398(02)00165-2
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  • 5
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    Overview of Glacial Atlantic Ocean Mapping (GLAMAP 2000) (2003)
    AGU (American Geophysical Union)
    In:  Paleoceanography, 18 (2). p. 1030.
    Details
    Publication Date: 2017-05-10
    Description: GLAMAP 2000 presents new reconstructions of the Atlantic's sea surface temperatures (SST) at the Last Glacial Maximum (LGM), defined at both 21,500–18,000 years B.P. (“Last Isotope Maximum”) and 23,000–19,000 years B.P. (maximum glacial sea level low stand and orbital minimum of solar insolation; EPILOG working group; see Mix et al. [2001]). These reconstructions use 275 sediment cores between the North Pole and 60°S with carefully defined chronostratigraphies. Four categories of core quality are distinguished. More than 100 core sections provide a glacial record with subcentennial- to multicentennial-scale resolution. SST estimates are based on a new set of almost 1000 reference samples of modern planktic foraminifera and on improved transfer-function techniques to deduce SST from census counts of microfossils, including radiolarians and diatoms. New proxies also serve to deduce sea ice boundaries. The GLAMAP 2000 SST patterns differ significantly in crucial regions from the CLIMAP [1981] reconstruction and thus are important in providing updated boundary conditions to initiate and validate computational models for climate prediction.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1029/2002PA000769
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