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
  • PANGAEA  (7)
Publikationsart
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
  • 1
    facet.materialart.
    Unbekannt
    Ice sheet model-derived global mean sea level and whole ocean oxygen isotopes (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulha Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Using planktonic foraminifera-based reconstructions of Indian Ocean surface salinity and temperature, we find that Indian Ocean surface water salinify during glacial intensification. Here we present reconstructions of global mean sea level using the ice sheet model ANICE and benthic foraminifera oxygen isotope data from U1476 to analyse changes in mean global sea level and calculate whole ocean changes in seawater oxygen isotopes. We use this information to show that the Indian Ocean surface hydrography changed in different ways from other ocean basins during Late Pleistocene glacial-interglacial cycles.
    Schlagwort(e): AGE; Global mean sea level; Ice sheet-topography model, ANICE-SELEN; Indian Ocean; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sea surface salinity; Sea surface temperature; δ18O, ice volume effect
    Materialart: Dataset
    Format: text/tab-separated-values, 2800 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unbekannt
    ANICE-SELEN topography model changes in land to sea ratios in the Indonesian Archipelago (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulhas Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Using planktonic foraminifera-based reconstructions of Indian Ocean surface salinity and temperature, we find that Indian Ocean surface water became saliter during glacial intensification. Here we present bathymetrical change data for the Indonesian Archipelago which shows that the Indonesian Throughflow was likely impacted due to changes in global mean sea level and possibly drove the changes in salinity during a glacial cycle.
    Schlagwort(e): AGE; Calculated; Calculated from Ice sheet-topography model, ANICE-SELEN; Global mean sea level; Indian Ocean; modelled; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Ratio; Salinity; Temperature; Sea surface salinity; Sea surface temperature
    Materialart: Dataset
    Format: text/tab-separated-values, 1614 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unbekannt
    Indian Ocean surface oxygen isotopes of seawater (ice volume corrected) stack - proxy for sea surface salinity (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulha Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Here we present planktonic foraminifera-based stack of oxygen isotopes as proxy for surface salinity from the surface Indian Ocean. We find that Indian Ocean surface salinity (along with temperature) increases during glacial intensification. We link this phenomenon to dynamics in the Indonesian Archipelago.
    Schlagwort(e): 361-U1476; Abashiri; ABS; AGE; CALYPSO; Calypso Corer; CD129; Charles Darwin; COMPCORE; Composite Core; Exp361; GeoB10038-4; Giant piston corer; GPC; Gravity corer (Kiel type); GS900963; Ice volume corrected; IMAGES VII - WEPAMA; Indian Ocean; Japan; Joides Resolution; KAL; Kasten corer; Marion Dufresne (1972); Marion Dufresne (1995); MD012378; MD01-2378; MD104; MD122; MD65; MD90-963; MD96-2048; Monitoring station; MONS; oxygen isotope ratios; oxygen isotopes; PABESIA; PC; PEGASE; Percentile 95; Piston corer; planktic foraminifera; Salinity; Temperature; Sea surface salinity; Sea surface temperature; SEYMAMA/SHIVA; SL; SO184/1; Sonne; South African Climates (Agulhas LGM Density Profile); SW Indian Ocean; Timor Sea; TY93-929; WIND; WIND-28K; δ18O, seawater, reconstructed; δ18O, seawater, reconstructed, standard score
    Materialart: Dataset
    Format: text/tab-separated-values, 6115 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unbekannt
    Planktic Foraminifera SST and ice volume corrected oxygen isotopes from IODP Site 361-U1476 Mozambique Channel Indian Ocean for the past 1.2Ma (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulha Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Here we present oxygen-isotopes and magnesium/calcium ratios from planktic foraminifer Globigernoides ruber from core site U1476 to reconstruct sea surface salinity and sea surface temperature in the Mozambique Channel, Indian Ocean for the past 1.2Ma. We investigated the changes in the surface hydrography of the Mid-to-Late Pleistocene and find an early salinification and warming during glacial cycles.
    Schlagwort(e): 361-U1476A; 361-U1476C; 361-U1476D; 361-U1476E; AGE; Calculated; Date/Time of event; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp361; Globigerinoides ruber, δ18O; Globigerinoides ruber, δ18O, standard deviation; Ice volume corrected; Identification; Indian Ocean; IODP Depth Scale Terminology; Joides Resolution; Latitude of event; Longitude of event; Magnesium/Calcium ratio; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sample code/label; Sea surface salinity; Sea surface temperature; Sea surface temperature, standard deviation; South African Climates (Agulhas LGM Density Profile); SST from Mg/Ca ratios; δ18O, seawater, reconstructed; δ18O, seawater, reconstructed, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 4159 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unbekannt
    Spectral and Cross Spectral Analysis for IODP Site 361-U1476 SST and planktic d18Osw-ivc (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulha Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Here we present spectral, and cross spectral analysis results which show that Indian Ocean surface salinity and temperature increased during glacial intensification, with a significant lag prior to deglaciations.
    Schlagwort(e): Calculated; Indian Ocean; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sea surface salinity; Sea surface temperature; Spectral coherence; Spectral cycle frequency; Spectral density; Spectral period; Spectral phase
    Materialart: Dataset
    Format: text/tab-separated-values, 2400 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unbekannt
    Confidence intervals for the Spectral and Cross Spectral Analysis for IODP Site 361-U1476 SST and planktic d18Osw-ivc data (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: The confidence intervals published here are supporting and complementing the spectral and cross spectral data under: doi:10.1594/PANGAEA.955738.
    Schlagwort(e): AGE; Age, maximum/old; Age, minimum/young; Calculated; Coherence; Indian Ocean; Number; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Reference/source; Salinity; Temperature; Sample code/label; Sea surface salinity; Sea surface temperature; Spectral density
    Materialart: Dataset
    Format: text/tab-separated-values, 64 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unbekannt
    Dataset for Indian Ocean Salinity build-up primes Deglacial Ocean Circulation Recovery (2023)
    PANGAEA
    Details
    Publikationsdatum: 2023-12-13
    Beschreibung: This dataset explores the variability in glacial-interglacial surface hydrography in the western Indian Ocean across the middle to late Pleistocene. Here, we provide 1kyr resolution Mg/Ca-based sea surface temperatures and surface oxygen isotope ratios of seawater (ice volume corrected) as proxy for surface palaeo-salinity from surface dwelling foraminifera Globigerinoides ruber from International Ocean Discovery Program core site U1476 located in the Mozambique Channel, which we use in combination with other records to create Indian Ocean sea surface salinity and sea surface temperature stacks. The data show increases in sea surface temperature and salinity during glaciation, with maximum temperature and salinity occurring at glacial maxima, prior to global deglaciations as indicated by benthic oxygen isotopes, a proxy for global ice volume. Lead-lag analyses were conducted using cross-spectral analysis between sea surface temperatures, salinity, and benthic oxygen isotopes. In parallel, sea-to-land pixel ratios from the ANICE-SELEN model across the Indonesian Archipelago show changes in land surfacing in the Indonesian archipelago due to globally sinking sea levels. The increase in surface temperature and salinification at U1476 occurs at the same time as major land surfacing in the Indonesian Archipelago suggesting a mechanistical link between land surfacing due to global sea level lowering, and changes in Indian Ocean surface hydrography that appears to be a resulting reduction in the considerably fresher Indonesian throughflow entering the Indian Ocean.
    Schlagwort(e): Indian Ocean; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sea surface salinity; Sea surface temperature
    Materialart: Dataset
    Format: application/zip, 7 datasets
    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...